Sverker750 Mae

ISO 9001

SVERKER 750RELAY TESTING UNIT

USER'S MANUAL

3P r o g r a m m a E l e c t r i c A BZ P - C D 0 1 E R 0 2 A

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USER'S MANUALfor

Relay testing unit

SVERKER 750

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P r o g r a m m a E l e c t r i c A BZ P - C D 0 1 E R 0 2 A

Contents1 Safety regulations .................... 6

2 Introduction ............................. 7

2.1 Applications.................................... 7

2.2 Design and construction .................. 8

2.3 Accessories .................................... 8Items that are included ................. 8Optional accessories ..................... 8

3 Description .............................. 9

3.1 General .......................................... 9

3.2 Current source ............................. 10

3.3 Timer ........................................... 11Start conditions .......................... 11Stop conditions........................... 11

3.4 Trip indicator ................................ 12

3.5 Display ......................................... 12

3.6 Ammeter & voltmeter .................... 13

3.7 AC Voltage source ......................... 14

3.8 Auxiliary voltage source ................. 14

3.9 Make/Break contact ..................... 15

3.10 Resistor set and capacitor ........... 15

3.11 Power supply .............................. 16

3.12 Computer inter face ..................... 16

4 Control panel ......................... 17

4.2 Current source ............................. 18

4.3 Timer ........................................... 19

4.4 Trip indicator ................................ 20

4.5 Display ......................................... 20

4.6 Ammeter & voltmeter .................... 21

4.7 AC Voltage source ......................... 22

4.8 Auxiliary voltage source ................. 22


4.10 Resistor set and capacitor ........... 23

4.11 Power supply .............................. 24

4.12 Other ......................................... 24

5 Making settings onthe display ................................ 25

5.1 Introduction .................................. 25

5.2 Button functions ........................... 26

5.3 Direction indicator ......................... 26

5.4 The menu system ......................... 28

5.5 Test mode .................................... 29

5.6 Injection ....................................... 29

5.7 Ammeter ...................................... 30

5.8 Voltmeter ..................................... 30

5.9 Ω , ϕ , W , VA... (Extrameasurement) .................................... 31

5.10 Timer ......................................... 32

5.11 Filter .......................................... 32

5.12 Off delay .................................... 33

5.13 Save/Recall ............................... 33

5.14 Remote control ........................... 34

5.15 Language ................................... 34

5.16 SW — HW .................................. 35

6 How to operateSverker 750 .............................. 36

6.1 General ........................................ 36Contents in this chapter .............. 36

6.2 Injecting current – General rules .... 36

6.3 Selecting the correct current output 37

6.4 Measuring current ......................... 37

6.5 Setting the desired current ............ 38

6.6 Finding Pick-up and drop-out limits forover (current/voltage/other entity)relays................................................. 39

6.7 Finding pick-up and drop-out limits forunder (current/voltage/other entity)relays................................................. 40

6.8 Measuring operating times for over(current/voltage/other entity) relays ..... 41

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6.9 Measuring operating times for under(current/voltage/other entity) relays ..... 42

6.10 Measuring voltage....................... 42

6.11 Obtaining the correct phase anglewhen two or more AC outputs are beingused .................................................. 43

6.12 Generating higher voltages .......... 43

6.13 Setting an auxiliary voltage .......... 44

6.14 Testing voltage relays – both pre-faultand fault voltages ............................... 44

6.15 Changing the phase difference be-tween current and voltage ................... 45

6.16 Measuring the phase angle ......... 46

6.17 Measuring external cycle time (meas-urement not initiated by Sverker 750) .. 47

6.18 Measuring Z, P, R, X, VA,VAR and COS ϕ ......................................... 47

6.19 Plotting a magnetization curve ..... 48

6.20 Testing an automatic recloser ...... 49

6.21 Measuring the trip pulse length .... 50

7 Application examples ............. 51

7.1 Testing voltage relays .................... 51

7.2 Testing overcurrent relays .............. 52

7.3 Testing directional overcurrent relaysystems or directional ground-fault (earth-fault) relay systems............................. 54

7.4 Testing power relays...................... 56

7.5 Testing undervoltage relays ........... 58

8 Troubleshooting ..................... 60

8.1 General ........................................ 60

8.2 Displayed values........................... 60

8.3 Error messages etc. ...................... 61

9 Specifications ........................ 62

9.1 General ........................................ 62

9.2 Outputs ........................................ 62

9.3 Inputs .......................................... 64


9.5 Measurement section ................... 65

9.6 Other ........................................... 67

Index ........................................ 70

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1 Safety regulationsDo not attempt to service the Sverker750 yourself. Opening or removingcovers may expose you to dangerousvoltage and other hazards.service

IMPORTANT!For added protection during a lightningstorm, or when the Sverker 750 is leftunattended and unused for long periodsof time, unplug it from the wall outlet.This will prevent damage due to lightningand power line surges.

If, for some reason, you need to returnyour Sverker 750, please use either theoriginal transport box or one of equiva-lent strength.

IMPORTANT!Read and comply with the followinginstructions.Always comply with local safety regula-tions.The Sverker 750 is equipped with amains plug having a third (earthing,grounding) pin. This plug will only fit intoan earthing/grounding-type power outlet.

WARNING!

FIRST OF ALL, connect protective earth(ground). Use the green/yellow cable.

NEVER connect the Sverker 750 to anexternal voltage if the protective earth(ground) is not connected.

Always use safety connecting leads.

Always turn the Sverker 750 off beforeconnecting.

Generated voltages and currents may beharmful to the operator or the deviceunder test.

The Sverker 750 should be operatedonly from the type of power sourceindicated on its nameplate.

Never spill water or other liquid of anykind on the Sverker 750.

Unplug the Sverker 750 from the walloutlet before cleaning. Use a damp clothfor cleaning. Do not use liquid cleanersor aerosol cleaners.

Do not use auxiliary equipment notrecommended by the Sverker 750manufacturer since this may causehazards.

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2 IntroductionOther applications

Plotting excitation curves

Current and voltage transformation ratio tests

Burden measurement for relay protection equip-ment

Impedance measurement

Efficiency tests

Polarity (direction) tests

2.1 ApplicationsSverker 750 is intended primarily for testing relayprotection equipment, but it can also be used formany other purposes. Virtually all single-phaserelay protection equipment that does not requirevariable frequency can be tested, and Sverker 750can also test three-phase relay protection equipmentthat can be tested phase by phase. Moreover, manyrelay protection systems that require phase shiftingcan be tested.

Items that can be tested using Sverker 750 include:

Type of relay IEEE standardcode

Overcurrent relay 50/76

Inverse time overcurrent relay 51

Undercurrent relay 37

Ground fault relay 50

Directional overcurrent relay 67

Directional ground fault relay 67N

Overvoltage relay 59

Undervoltage relay 27

Directional voltage relay 91

Directional power relay 32

Power factor relay 55

Differential protection(differential circuit) 87

Distance protectionequipment (phase by phase) 21

Negative sequence overcurrentrelay 46N

Motor overload protection 51/86

Automatic reclosing devices 79

Tripping relays 94

Voltage regulating relay

Overimpedance relay(Z greater than ...)

Underimpedance relay(Z less than ...)

Thermal relay

Time-delay relay

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2.2 Design andconstructionThe current source built into Sverker 750 canprovide 0-10 A, 0-40 A, 0-100 A, 0-250 V AC or 0-300 V DC. Timing and generation (output) can becarried out simultaneously. When the relay protec-tion equipment trips, both output and timing areinterrupted.

There is also a separate built-in AC voltage source.It can be varied from 0 to 110 V AC, and it is usedto supply the relay voltage input.

A 20-220 V DC voltage source is used to provideauxiliary voltage.

Sverker 750 is equipped with a timer, ammeter andvoltmeter, and these instruments can also be used toindicate resistance, impedance, phase angle, powerand power factor. Moreover, these instruments canbe used for measurements in external circuits.

A set of resistors and a capacitor are provided, andthey can be connected into the circuits being testedto provide phase shifts, fine adjustments and thelike.

A make/break contact can be used to synchronizeother circuits with tests that are being conducted.

Sverker 750 settings are made using knobs andother controls on the control panel. Numerous othersettings can be made via the display window builtinto the control panel.

2.3 Accessories

Items that are includedArticle Art. No.

Sverker 750 Relay Testing Unit,115 V CD-11100

Sverker 750 Relay Testing Unit,230 V CD-12300

Sverker 750 User’s Manual ZP-CD01E

Optional accessoriesArticle Art. No.

Test lead set GA-00030

Transport case GD-00180

Protective earth (ground) cable GA-00200

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3 Description3.1 GeneralThis chapter presents a general description ofSverker 750 and the types of functions it performs.For more detailed descriptions, please see Chapters4 and 5.

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3.2 Current sourceThe current source built into Sverker 750 canprovide 0-100 A, 0-40 A, 0-10 A, 0-250 V AC or 0-300 V DC, depending on which output is used. As arule, this current source is used to provide simulatedsudden-change fault conditions for the object beingtested.

Values are set using the main knob on the controlpanel. Current, voltage and other settings appear onthe display. See section headed ”Ammeter andvoltmeter”.

Generation is turned on and off using the startswitch which has four positions:

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An indicator lamp to the right of the set of resistorsis lighted during generation. Generation start-up issynchronized with the mains, thus eliminatinginaccuracies in the test results attributable to theinstant at which the start switch is activated.

There are a number of different types of generation,and they are selected via the display window(Chapter 5).

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3.3 TimerSince the timer has a start input and a stop input, itcan be used to measure external cycles as well assequences initiated by Sverker 750. The measuredtime appears in the display window.

To test automatic reclosing devices, Sverker 750 isable to measure a number of sequential time inter-vals and display the results later.

The inputs can be set individually to respond eitherto zero-potential contact operation or to a voltage(AC or DC).

Input state indicators

At each timer START and STOP input there is aninput state indicator lamp that indicates the state ofthe input. When the indicator lamp is lighted, itindicates either a closed circuit (for contact mode)or the presence of a voltage (for voltage mode).These indicators permit you to (for example) checkthe circuits involved before starting a test sequence.

Start conditionsThe timer can be started in the following ways:

Indication Start condition

INT a) When an internal start occurs, i.e. fora test sequence started by Sverker 750(ON+TIME or OFF+TIME).

b) When a voltage is applied to the

start input or when a contact is closed.

c) When a voltage applied to the startinput vanishes or when a contact isopened.

b + c d) When the state of the input changes.

Stop conditionsThe timer can be stopped in the following ways:

Indication Stop condition

INT a) When an outgoing current is interrupted (internal detection).

b) When a voltage is applied to the stop

input or when a contact is closed.

c) When a voltage applied to the stopinput vanishes or when a contact isopened.


Measuring an external cycle

Before measuring, Sverker 750 must be set to theON+TIME state, whereupon the timer will also becleared to zero.

Clearing the timerThe timer will be cleared to zero when generationstarts again.

Testing automatic reclosingdevicesA setting must be made via the display windowbefore you can test automatic reclosing devices.ON+TIME is lighted throughout the entire cycle.Generation starts again each time the timer’s startinput is activated.

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3.5 DisplayCurrent, voltage and other entities can be shown onthe display.

The display window is also used to make settings.To do this, you must put Sverker 750 in the settingmode by pressing the button marked MODE.

3.4 Trip indicatorWhen the stop condition is met, the TRIP indicatoris lighted. This lamp indicates tripping of the relayprotection equipment. When a test includes timing,this indicator lamp flashes when tripping occurs.

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3.6 Ammeter &voltmeterSverker 750 is equipped with an ammeter andvoltmeter. These instruments can also be used todisplay resistance, impedance, phase angle, powerand power factor. Moreover, these instruments canbe used to perform measurements in externalcircuits. In both cases, the values appear on thedisplay.

The ammeter measures one of the following:

• Current at one of the current outputs0-100 A, 0-40 A or 0-10 A.

• Current in an external circuit connected tothe Sverker 750 ammeter panel input(marked A).

You select the desired measurement site (testpoint)using the button marked A, whereupon a indicatorlamp lights at the selected measurement site.

The voltmeter shows the voltage connected to thevoltmeter input (marked V) on the panel. This inputis always activated.

The ammeter and voltmeter both change rangesautomatically, but they can also be changed manu-ally. For AC, they measure true RMS value. Youcan change from AC to DC and vice versa.

A HOLD (freeze) function permits you to measurevoltages and currents having durations as short as aquarter of the mains cycle. When the timer isstopped, the current and voltage values are frozen. Ifthe timer is not stopped, the values present when thecurrent was interrupted are frozen. The hold func-tion is engaged by pressing the button markedHOLD. - - - - can sometimes appear during meas-urement of high-speed AC cycles when the holdfunction is invoked. This means that no value couldbe presented because the cycle was too short.

If O.F. (means overflow, i.e. a value beyond themeasurement range) appears, the cycle beingmeasured may have been so fast that there wasn’ttime for automatic range changing. In such case,you should repeat the measurement. The range-changing system is memory-equipped, and repeat-ing your measurement may give it time to make thechange properly.

When current and/or voltage fluctuate widely, afilter can be engaged to make reading easier. Thefilter performs an averaging function.

Instead of having current and voltage shown inamperes and volts, you can have them shown as apercentage of a given current or voltage (the relayprotection equipment’s setting for example). Aflashing current value means that the value is lessthan 1% of the range being used. To get a moreaccurate current reading, you can then measure viathe ammeter input.

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3.7 AC Voltage sourceThe AC voltage source provides 0-120 V AC (splitinto two ranges). It has two knobs of its own, onefor rough and one for fine settings. Since the ACvoltage source is separated from other outputs, it isset independently of the current source.

The AC voltage source is intended primarily for therelay protection equipment’s voltage input. A set ofresistors and a capacitor can be used to change thephase angle of the current and the voltage.

3.8 Auxiliary voltagesourceThe auxiliary voltage source provides 20-220 V DC(split into two ranges). It is equipped withovercurrent protection, and it is separate from theother outputs. Moreover, it can be used to supplythe relay being tested.

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3.10 Resistor set andcapacitorThe resistor set and capacitor can be used to changethe phase angle of the current and voltage.

3.9 Make/BreakcontactThere is a make/break contact that is actuated whenSverker 750 is set to the ON+TIME or OFF+TIMEstate. It can be used, for example, to synchronizeother equipment or to change the voltage supplied tothe relay protection equipment at the start of a testfrom non-faulty to faulty or vice versa.

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3.11 Power supplyThe power supply is equipped with a miniaturecircuit breaker.

3.12 ComputerinterfaceSverker 750 has a computer interface port. It is usedfor factory calibration.

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4 Control panel

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4.2 Current source

1. 0-100 A current output. Regulated withmain knob 7.

2. 0-40 A current output. Regulated with mainknob 7.

3. 0-10 A current output. Regulated with mainknob 7.

4. Indicator lamp, ammeter testpoint. Whenthis indicator lamp is lighted, Sverker ismeasuring current at the associated output.To change the measurement site, press thebutton marked A (item 19).

5. 0-250 V, 3 A, AC. AC voltage is variablefrom 0 to 250 V. Regulated with mainknob 7.

6. 0-300 V, 2 A, DC. DC voltage is variablefrom 0 to 300 V. Regulated with mainknob 7.

7. Main knob. Used to regulate the currentsource (outputs 1, 2, 3, 5 and 6).

8. Indicator lamp. When this indicator lamp islighted, the current source is activated(outputs 1, 2, 3, 5 and 6).

9. F2. Miniature circuit breaker for the currentsource. 4 A (230 V), 8 A (115 V).

10.Rx/Cx. Connector for resistor or capacitor.

To obtain a smoother characteristic, con-nect one or more resistors in series. Tochange the phase angle 90o, connect thecapacitor. A jumper must be connected tothis connector when it is not being used.

11.Start switch. Turns the current source onand off. Use the ì and Å buttons to selectthe desired mode.

Indication What is meant

ON+TIME Current source is activated until theobject being tested has operated. Thetime is then displayed, whereuponSverker 750 returns automatically tothe OFF mode.

OFF Current source is turned off.

ON Current source is turned on (activated).

OFF+TIME Current source is turned off. When theobject being tested has operated, thetime is displayed, whereupon Sverker750 returns automatically to the OFFmode.

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4.3 Timer

12.START input. This is used to start the timer.Max 250 V (AC or DC). The time is shown inthe display

Indication Condition required for timer start

INT a) Internal. Used when ON+TIME orOFF+TIME is selected.

b) When voltage is applied or when a

contact is closed.

c) When applied voltage vanishes orwhen a contact is opened.


Select the desired option using the leftmost of thetwo blank-faced buttons located under START onthe control panel.

Indication Mode

Voltage mode. Detects if voltage isapplied or not.

Contact mode. Detects if circuit isclosed or not.

Select either the voltage mode or the contact modeusing the rightmost of the two blank-faced buttonslocated under START on the control panel.

13.Indicator lamp. This lamp indicates thestate of the timer input. When this indicatorlamp is lighted voltage is present at theinput (voltage mode) or the circuit is closed(contact mode).

14.STOP input. This is used to stop the timer.Max 250 V (AC or DC). The time is shown inthe display.

Indication Condition required for timer stop

INT a) Internal. Used when ON+TIME orOFF+TIME is selected.

b) When voltage is applied or when a

contact is closed.

c) When applied voltage vanishes orwhen a contact is opened.


Select the desired option using the ← button (blue).It is the leftmost of the two buttons located underSTOP on the control panel.

In the setting mode (MODE activated): The ←button provides a move to the left on the display.

Indication Mode

Voltage mode. Detects if voltage isapplied or not.

Contact mode. Detects if circuit isclosed or not.

Select either the voltage mode or the contact modeusing the → button (blue). It is the rightmost of thetwo buttons beneath STOP on the control panel.

In the setting mode (MODE activated): The →button provides a move to the right on the display.

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4.5 Display16.Display.

17.Button marked MODE. This button changesthe display from the measurement mode(normal mode) to the setting mode and viceversa.

NOTE! In the setting mode (MODE activated):The ESC (blue text) button leaves thepresent menu option unchanged andproceeds to the next higher menuoption.

4.4 Trip indicator15. TRIP indicator. This indicates that the objectbeing tested has tripped. The fact that trippingoccurred indicates that the conditions imposed at thetimer’s stop input (item 14) are met. This indicationdoes not occur unless the object being tested isconnected to the stop input.

Steadily glowing indicator lamp: Indicates trippingwhen the test is being conducted without timing(start switch at the ON position).

Flashing indicator lamp: Indicates tripping when thetest is being conducted with timing (start switch atthe ON+TIME or OFF+TIME position). It alsoindicates that timing is completed. Sverker 750 thenreturns automatically to the OFF state. You canreset the flashing indicator lamp by pressing thebutton marked HOLD (item 21) twice.

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4.6 Ammeter &voltmeter

18.Input marked A. This is the external panelinput to the Sverker 750 ammeter. It isactivated by pressing the button marked A(item 19) which is located at right beneaththe display window. The indicator lampadjacent to this input is lighted to indicatethat the input is activated. F4 6A: Miniaturecircuit breaker for the ammeter.

19.Button marked A at right beneath thedisplay window. This button is used totransfer the ammeter testpoint to currentoutputs 1, 2, 3 or to select the externalpanel input to the Sverker 750 ammeter(item 18). The current value is shown onthe display.

NOTE! In the setting mode (MODE activated):The SEL (blue text) button selects themenu option that is displayed.

20.Input marked V. This is the input to theSverker 750 voltmeter, and it is alwaysactivated. The voltage value is shown onthe display.

21.Button marked HOLD. This button freezesthe prevailing current and voltage valueswhen the object being tested is tripped orwhen generation stops. If tripping does notoccur, the prevailing value is frozen whenSverker 750 changes to the OFF state. Thehold (freeze) function is toggled on and offby pressing this button.

When you turn the hold function off, the flashingtrip indicator 15 is reset. Moreover, Sverker 750senses the state of timer stop input 14 (STOP), thusmaking it possible to respond if a change occurs atthis input. This is valid only while the input is inchange sensing state (b + c, see item 14).

NOTE! In the setting mode (MODE activated):The CHG (blue text) button opens thedisplayed menu option so that it can bechanged.

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4.7 AC Voltage source

22.0-120 V AC. Separate, independent outputfor AC voltage. Can be varied from 0 to120 V using knobs (23) and (24).

23.Knob used for fine adjustment of AC voltage(22).

24.Knob used for rough adjustment of ACvoltage (22).

25.0-60, 60-120 switch. This is used to togglebetween the 0-60 V and 60-120 V ACvoltage ranges.

26.I/O. ON/OFF switch used for the AC voltagesource.

4.8 Auxiliary voltagesource

27.20-220 V DC. Separate, independentoutput for auxiliary voltage (DC) to theobject being tested. Can be varied from 20to 220 V DC using knob (28).

28.Knob used for auxiliary voltage (27).

29.20-130 / 130-220 switch. This is used totoggle between the 20-130 V and 130-220 V DC auxiliary voltage ranges.

30.I/O. ON/OFF switch used for the auxiliaryvoltage source (27).

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4.9 Make/Breakcontact

31.Relay contact. Changes state in responseto ON+TIME and OFF+TIME.

32.Break (normally-closed) function.

33.Make (normally-open) function.

34.F3 1A: Miniature circuit breaker for relaycontact (31).

4.10 Resistor set andcapacitor

/

35.Capacitor, 10 mF, 450 V.

36.Resistor set.

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4.12 Other

41.SERIAL. The computer interface port isused for factory calibration.

42.Terminals marked with black dots all havethe same polarity (used for AC voltagesources).

NOTE! CHG, ESC and SEL are imprinted on thefaces of the buttons marked HOLD,MODE and A respectively. These im-prints (CHG, ESC and SEL) apply onlywhen Sverker 750 is in the settingmode. The panel markings (HOLD,MODE and A) apply when Sverker 750 isin its normal mode, i.e. the measure-ment mode.

4.11 Power supply

37.Mains voltage ON/OFF.

38.Connector for mains voltage.

39.F1: Miniature circuit breaker for the powersupply. 4 A (230 V), 8 A (115 V).

40.Ground (earth) terminal.

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5 Making settings on thedisplay

To save something in or recall something from amemory you proceed via the Save/Recall menuoption. See section 5.13.

In addition, there is a special memory that containsProgramma’s original Sverker 750 settings. Thesecan be recalled whenever you want to use them. Theoriginal settings are kept in the special memory.They are determined by Programma, and you cannotchange them.

How to return to the measurement(normal) mode

You can return from the setting mode to the meas-urement mode at any time by pressing the ESCbutton. Note, however, that you may sometimeshave to press this button twice, depending on whereyou are in the menu.

5.1 IntroductionThere are a number of ways to make Sverker 750settings. In addition to using the buttons and othercontrols on the control panel, you can make settingsvia a menu shown on the display. To proceed viathis menu, however, you must first put Sverker 750in the setting mode.

How to enter the setting modeBefore you can change from the measurement mode(normal mode) to the setting mode, Sverker 750must be in the OFF state. To enter the setting mode,you press the button marked MODE.

Display shown in the setting modeWhen Sverker 750 is in the setting mode, two linesappear in the window. The menu heading appearson the first line, and the selected menu optionappears on the second line between < and > charac-ters.

Menu heading<Menu option>

Memories – Your default settingsand the original Sverker 750settingsYou can save settings that have been made via amenu. This can be useful when, for example, youwant to prepare settings in advance to make it easierto test different types of protective relay equipment.Saved settings remain in the memory even after theSverker 750 has been turned off. Since ten memo-ries are available for this purpose, you can savesettings for up to ten different types of protectiverelay equipment.

Each time Sverker 750 is turned on, the settings inmemory No. 0 are recalled as defaults. Your defaultsettings, i.e. the settings you want to recall auto-matically at turn-on time should thus be saved inmemory No. 0.

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5.2 Button functions

Button Function in setting mode(MODE activated)

CHG Opens a menu option so that it can bechanged. If a numeric value is to bechanged, a cursor appears which canbe moved by pressing the î button or Äbutton.

ESC Leaves the menu option unchanged andmoves to menu level 1. If you arealready on menu level 1, pressing ESCcauses Sverker 750 to leave thesetting mode.

SEL Invokes the menu option that has beenselected.

Moves up in menu or increases anumerical value.

Moves down in menu or decreases anumerical value.

Moves right in display window.

Moves left in display window.

5.3 Direction indicatorIn addition to the menu heading and menu option, adirection indicator appears on the display. It indi-cates the direction(s) in which you can move in themenu or change a numerical value. The directionindicator can have one of three shapes: diamond(double up/down arrow), up arrow or down arrow.

Direction indicator ↓↓↓↓↓

Injection !!!!!<Maintained>

Direction indicator shapes andtheir meanings

Indicator shape Meaning

! Up and down arrow You can moveeither up or down (orincrease/decrease avalue).

Up arrow You can only move up(or increase a value).

Down arrow You can only movedown (or decrease avalue).

How to change a numerical value

Some menu options include numerical values(settings) that can be changed. To open a numericalvalue for change, you press the CHG button,whereupon a cursor appears beneath the rightmostdigit. Change numerical valueNumerical valuechange

You can now move the cursor with the î or Ä buttonuntil it is beneath the desired digit. Then increase ordecrease the value using the ì or Å button.

Injection Max time:99.9 s

a) If you want to change 99.9 to 95.0 you press theCHG button to open the numerical value for change.


b) A cursor that indicates which digit can be changedappears beneath the rightmost digit.

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c) You press the button nine times to step from 99.9down to 99.0, and then move it one step to the left bypressing the " button.

Injection !!!!!Max time:95.0 s

d) Press the button four times to step from 99.0 downto 95.0. The numerical value is now set as desired, but toinvoke it you must press the SEL button.

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5.4 The menu systemMenu level 1 Menu level 2 options Explanation

Test mode Normal Measures time from START to STOP.Trip + pulse time Measures time from START to STOP and also the duration of the trip

pulse.Reclose: #01 999 s Sets time for reclosing. Max 49 reclosings. The total time for the

specified number of reclosings can range from 001 to 999 s.

Injection Maintained Generation continues without time limit.Momentary Generation continues while button is kept pressed.Max time 99.9 s Generation continues throughout a preset interval that

can range from 00.1 s to 99.9 s.

Ammeter AC Measures AC, true RMS.DC Measures DC, mean value.Unit: Ampere Expressed in amperes.Unit: % of nom I Expressed as % of nominal current.Nom I: 001 A Used to set nominal current.Range: Auto Range selected automatically.Range: Low Fixed low range.Range: High Fixed high range.

Voltmeter AC Measures AC, true RMSDC Measures DC, mean valueUnit: Volt Expressed in volts.Unit: % of nom U Expressed as % of nominal voltage.Nom U: 063 v Used to set nominal voltage.Range: Auto Range selected automatically.Range: Low Fixed low range.Range: Mid Fixed mid range.Range: High Fixed high range.

Q , ϕ , W ,VA None No extra measurement function displayedZ (Ω. ϕ) Impedance (magnitude + phase angle)Z (Ω) Impedance (magnitude)R. X (Ω. Ω) Resistance and reactance (magn and magn)P (W) Active powerS (VA) Apparent power.Q (VAr) Reactive power.cos ϕ Power factor.ϕ (°, Iref ) Phase difference, current as reference.ϕ (°, Uref ) Phase difference, voltage as reference.

Timer Unit: Seconds Time expressed in seconds.Unit: Cycles Time expressed in mains-frequency cycles.

Filter ON Displayed value filtered by averaging.OFF No filtering

Off delay Cycles 004 Mains-frequency cycles throughout which generation is to continueafter tripping occurs.

Save/Recall Recall mem #: O Recalls all settings that were stored in the specified memory.Range is O-9.

Recall default Recalls all of the original settings made by Programma prior to delivery(they are stored in a special memory).

Save mem #: 0 Saves the settings in the specified memory. The range is 0-9.

Remote control ON To be implemented in the future.OFF Sverker 750 controlled from the panel.

Language English English-language menus, prompts etc.Deutsch German-language menus, prompts etc.Francais French-language menus, prompts etc.Espanol Spanish~language menus, prompts etc.Svenska Swedish-language menus, prompts etc.

SW: R02A Software version.SW: R01A Hardware version.

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5.5 Test modeTest mode<Normal>

This menu option is used to specify the desired typeof time measurement. You have three choices:Normal, Trip + pulse time and Reclose.

You press the CHG button to access the differentmemory options, and then scroll up or down usingthe or button.

Menu option Explanation

Normal Measures time from START to STOP.

Trip + pulse timeMeasures time from START to STOPand also the duration of the trippulse.

Reclose: #01 999 sSets time for reclosings. Max 49reclosings. The total time for thespecified number of reclosings canrange from 1 to 999 s.

1. Press the SEL button to invoke the selectedoption.

5.6 InjectionInjection<Maintained>

Here, you select the type of generation. You havethree choices: Maintained, Momentary and Maxtime.


Maintained Generation continues without any timelimit.

Momentary Generation continues while start switchis kept activated.

Max time: 99.9 sGeneration continues throughout apreset interval that can be set from00.1 to 99.9 s. IMPORTANT: To changea numerical value, press the CHGbutton one additional time and thenuse the arrow buttons.


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5.7 AmmeterAmmeter<AC Amp Auto>

This option is used to make settings for the Sverker750 ammeter.

The ammeter can be set to measure AC or DC. ACreadings are expressed as true RMS values whileDC readings are mean values.

Readings can be expressed in amperes or percent-ages of the nominal current (which can be set from1 to 999 A). These choices are called units on themenu. IMPORTANT: To change a numerical value,you press the CHG button one additional time andthen use the arrow buttons.

The range can be set to Auto or to Fixed low orFixed high. The fixed ranges are useful for shortmeasurement cycles during which the ammeterdoesn’t have time to change range automatically. Ifthis occurs, O.F. (range overflow) is displayedconstantly.

For more information about the different ranges seechapter 9, headed Specifications.

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5.8 VoltmeterVoltmeter<AC Volt Auto>

This option is used to make settings for the Sverker750 voltmeter.

The voltmeter can be set to measure AC or DC. ACreadings are expressed as true RMS values whileDC readings are mean values.

Readings can be expressed in volts or percentagesof nominal voltage (which can be set from 1 to 999V). These choices are called units on the menu.IMPORTANT: To change a numerical value, youpress the CHG button one additional time and thenuse the arrow buttons.

The range can be set to Auto or to Fixed low, Fixedmid or Fixed high. The fixed ranges are useful forshort measurement cycles during which the voltme-ter doesn’t have time to change range automatically.If this occurs, O.F. (range overflow) is displayedconstantly.

For more information about the different ranges seeChapter 9, Specifications.


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5.9 ΩΩΩΩΩ , ϕ ϕ ϕ ϕ ϕ , W , VA...(Extra measurement)

ΩΩΩΩΩ, ϕϕϕϕϕ, W, VA. . .<None>

Here, you can select extra measurement functions(in addition to the voltage and current functions)

For all extra measurement functions, Sverker 750must be set for AC measurement, i.e. for AC Ampand AC Volt. However, this does not apply to themeasurement of resistance or active power. Forthese, DC measurement can also be used.

Either voltage or current can be used as a referencefor calculating the phase difference (phase angle)between current and voltage.

Then, when Sverker 750 is used in the generationmode (normal mode), the selected extra measure-ment function is displayed at the top of the window,beside the time.

Only one option can be selected at a time.

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5.10 TimerTimer<Unit: Seconds >

Here you select the unit in which the time displayedin the window by the timer is expressed. Timemeasurements can be expressed in seconds (s) or inmains-frequency cycles.


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5.11 FilterFilter<ON>

If the values shown in the Sverker 750 displaywindow become unstable as measurement proceeds,you can filter them. Filtering is accomplished byaveraging, and it affects all displayed values excepttime values.

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5.13 Save/RecallSave/Recall<Settings>

The settings made under the headings/optionsdiscussed above can be saved in a memory wherethey will remain even after Sverker 750 has beenturned off. Then when you want to conduct a similartest again, they can be recalled from the memory inquestion. There are ten such memories.

Each time Sverker 750 is turned on, the contents ofmemory No. 0 are recalled as defaults. You can,however, recall and use the contents of any othermemory by specifying its number in this menu.

In addition, there is a special memory that containsProgramma’s original Sverker 750 settings, andthey can be recalled whenever you want to usethem.

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5.12 Off delayOff delay<004 Cycles>

This is used to set the time, expressed in mains-frequency cycles throughout which generation is tocontinue after tripping occurs. The range is 0-999cycles. The original Programma setting is 4 cycles.If no delay is desired, set the number of cycles to 0.IMPORTANT: To change a numerical value, pressthe CHG button one additional time, and then usethe arrow buttons.

Range: 000-999.


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5.15 LanguageLanguage<English>

Here, you select one of five languages in which themenus, prompts etc. will appear.


English English-language menus, prompts etc.

Deutsch German-language menus, prompts etc.

Français French-language menus, prompts etc.

Español Spanish-language menus, prompts etc.

Svenska Swedish-language menus, prompts etc


5.14 Remote controlRemote control<OFF>

This function will be implemented in the future.

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5.16 SW — HWSW: R02AHW: R01A

This enables you to display the software version andhardware version. The user cannot change thisinformation.

Menu heading Explanation

SW Software version you are using.

HW Hardware version you are using.

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6 How to operateSverker 750

6.2 Injecting current –General rulesWhen you inject current through protective relayequipment for testing purposes, you must observeseveral rules of thumb:

• Provide as much impedance as possible inseries with the load.This will counteract changes in current andminimize waveform distortion for relayswhose impedances change when they haveoperated, and also for relays that becomesaturated.Moreover, the current become more easy toto adjust, since this will increase the turn ofthe knob.

• When you are measuring operating times,the value of the applied current or voltageused for testing must exceed the trippinglimit by an ample margin (rule of thumb: 1.2-1.5 times the pick-up limit).

• High current should be injected through theprotective relay equipment for as short atime as possible to prevent overheating.It may be advisable to use manually-control-led (momentary) generation or time-limitedgeneration when injecting high current.

6.1 GeneralThis chapter presents the steps you should take toperform typical Sverker 750 testing operationsefficiently. Sometimes several alternative ways ofcarrying out a step are presented. This chapter willhelp you formulate testing procedures for differenttypes of protective relay equipment.

Contents in this chapter6.1 Injecting current, general rules

6.2 Selecting the correct current output

6.3 Measuring current

6.4 Setting the desired current

6.5 Finding pick-up and drop-out limits forover... relays

6.6 Finding pick-up and drop-out limits forunder... relays

6.7 Measuring operating times for over...relays

6.8 Measuring operating times for under...relays

6.9 Measuring voltage

6.10 Obtaining the correct phase angle whentwo or more AC outputs are being used

6.11 Generating higher voltages

6.12 Setting an auxiliary voltage

6.13 Testing voltage relays, both pre-faultand fault voltages

6.14 Changing the phase difference betweencurrent and voltage

6.15 Measuring the phase angle

6.16 Measuring external cycle time (meas-urement not initiated by Sverker 750)

6.17 Measuring Z, P, R, X, W, VA, VAr andcos ϕ

6.18 Plotting a magnetization curve

6.19 Testing an automatic recloser

6.20 Measuring the trip pulse length

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6.3 Selecting thecorrect current outputSelect the output at which the setting knob must beturned the furthest to obtain the desired current.This will improve setting accuracy and enableSverker 750 to deliver maximum power.

Current outputCurrent source When the object beingtested has high impedance or may reach saturation,it is especially important to use the output havingthe highest possible voltage. This will drive thedesired current through the object being testedefficiently and minimize distortion of the currentwaveform.

6.4 Measuring current

The ammeter in Sverker 750 has four inputs. Threeof them are internal inputs fixed to the individualcurrent outputs, and one is an external input locatedon the control panel. Active input (i.e. ammetertestpoint) is indicated by an indicator lamp.

Use the button marked A to transfer the ammetertestpoint to the selected input.

The internal inputs are used to measure the currentgenerated by Sverker 750. The external input is usedto measure current in an external circuit. If sodesired, however, it can be used for measurement ofcurrent from Sverker. This is useful since ammeteraccuracy is highest when measurement proceeds viathe external input. The external input can be usedfor currents of up to 6 A.

The HOLD (freeze) function makes it possible tomeasure currents of very short duration. Activate itby pressing the button marked HOLD. See thesection headed ”Ammeter and voltmeter” in Chap-ter 3.

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6.5 Setting thedesired current1. Connect the object being tested to a suit-

able output on Sverker 750.

2. Use the button marked A to transfer theammeter testpoint to the selected currentoutput or to the external ammeter panelinput.

3. Activate ON using the start switch.

4. Adjust the current using the main knob. Thecurrent can be read from the Sverker 750display.

High currents

High currents may overheat both the object beingtested and Sverker 750. You can prevent overheat-ing by generating currents of very short duration.Short-duration currents can be read very easilyusing the ammeter’s HOLD (freeze) function.

The best way to generate short-duration currents isto use manually-controlled (momentary) or time-limited generation. See explanation of settings inChapter 5.

1. Connect the object being tested to a suit-able output.

2. Use the button marked A to transfer theammeter testpoint to the selected output.

3. Activate the HOLD (freeze) function.

4. Activate ON briefly using the start switch.

5. Read the current.

6. Repeat, starting with step 4, until thecorrect current is set.

Low currents and good settingresolutionYou can obtain low currents and good settingresolution by connecting one or more of the resis-tors in the Sverker 750 set of resistors in series inthe current circuit. You can also use these resistorsto create a voltage divider, thereby reducing theoutput current.

Limiting resistors can also be connected into theprimary side (terminal Rx/Cx) of the output trans-former. More-over, if you want to limit the current

without generating heat, you can connect theSverker 750 capacitor, al-though this will changethe phase angle of the current.

Sometimes it is advantageous to use the 0-100 Aoutput when you want low currents since it has thelowest output voltage. This low voltage will drive alower current than any of the other Sverker 750outputs through a high-ohm load or series resistor.

Always use the ammeter input for external measure-ment when measuring low currents since it providesthe best accuracy.

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6.6 Finding Pick-upand drop-out limits forover (current/voltage/other entity)relaysMethod 1a: Normal injection,gradual increase in current.Current is generated continuously. This procedure issuitable in situations where there is little risk ofoverheating the protective relay equipment and youwish to measure the drop-out function without usinga second test procedure.

1. Initial settings: OFF. Main knob at 0.

2. Connect the relay’s current input andtripping output to Sverker 750.


4. Set the timer start condition to INT.

5. Set the timer stop condition (to CLOSURE +OPENING, CONTACT for example).


7. Turn up the current quickly until the relayoperates.


9. Turn down the current. Read the currentthat flows when drop-out takes place.

10.Interrupt output by setting the start switchto OFF.

Method 1b: Normal injection, pick-up and drop-out values obtainedusing the HOLD (freeze) function

Increase the current gradually until the relay operates, whereuponthe current reading is frozen. You can then start reducing thecurrent immediately, and the current reading will be frozen whendrop-out occurs.

1. Initial settings: OFF. HOLD. Main knob at 0.


3. Use the button marked A to transfer theammeter testpoint to the current outputthat is being used.




7. Turn up the current until pick-up.

8. The tripping limit will be frozen and held onthe display.

9. Press the HOLD button twice in order toreset the HOLD function.

10.Turn down the current until the relay dropsout. You can now read the frozen drop-outvalue from the display window.

11.Interrupt output by setting the start switchto OFF.

Method 2: Manually-controlled(momentary) injectionHere, the current is interrupted when you release thestart switch (from the ON or ON+TIME position).This procedure enables you to prevent overheatingof the protective relay equipment when, for exam-ple, you are trying to find the pick-up value for aninstantenous unit.

1. Initial settings: OFF. MOMENTARY (seeexplanation of settings in Chapter 5).HOLD. Main knob at 0.

2. Connect the relay current input and trippingoutput to Sverker 750.




6. Change the main knob setting.

7. Activate ON briefly. The duration of theoutput must be longer than the operatingtime of the instantaneous unit. If you wantto check the time, you can activateON+TIME instead of ON.

8. Check to see that the instantaneous unithas tripped. This can be done by a) check-ing the indicator lamp on the relay or b)checking to see that the TRIP indicatorlamp in Sverker 750 is on and that themeasured operating time matches theoperating time of the protective relay equip-ment. Repeat, starting with step 6, until youfind the lowest current that provides opera-tion.


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10.To measure the drop-out value, activate ONagain using the start switch until trippingoccurs. Then, while keeping ON active,reduce the current by turning the main knobuntil resetting takes place. Release thestart switch and make a note of the current.

Method 3: Time-limited injectionTime-limited injection Time-limited generation, asits name implies, interrupts output after a presettime. This is useful when you want to preventoverheating in the protective relay equipment.

1. Initial settings: OFF. MAX TIME (see expla-nation of settings in Chapter 5.) HOLD.Main knob at 0. The maximum time mustbe set longer than the operating time of theinstantaneous unit.

2. Connect the relay current input and trippingoutput to Sverker 750. 3. Set the ammeterto measure current at the current outputthat is being used.




7. Activate ON using the start switch. If youwant to check the time, you can activateON+TIME instead of ON.

8. Check to see that the instantaneous unithas operated. This can be done by a)checking the indicator lamp on the relay orb) checking to see that the TRIP indicatorlamp on Sverker 750 is on.


10.Search for the lowest current where therelay operates, by repeating from point 6above and onwards.

6.7 Finding pick-upand drop-out limits forunder (current/voltage/other entity)relays1. Initial settings: OFF, HOLD. Main knob at 0.

2. Connect the relay input and tripping outputto Sverker 750.




6. Increase the entity (current or voltage)being tested until it exceeds by an amplemargin the value of the relay setting.

7. Turn the main knob anti-clockwise until therelay trips. Read the pick-up value.

8. Turn the main knob clockwise until the relaydrops out. Read the drop-out value.

9. Interrupt output by setting the start switchto OFF.

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6.8 Measuringoperating times forover (current/voltage/other entity)relaysMethod 1: Normal injection

Generation continues until the protective relayequipment operates.

1 Initial setting: OFF. Main knob at 0.





6. Activate ON using the start switch. Set thedesired current for measuring the operatingtime. This current must be set well abovethe operating limit.

7. Interrupt output by setting the start switchto OFF.

8. Activate ON+TIME using the start switch.

9. Read and note the time and current.

Method 2: Manually-controlled(momentary) injection

This is useful when you want to eliminate overheat-ing in the relay. Generation continues only as longas the start switch is kept at the ON position.

1. Initial settings: OFF. MOMENTARY (seeexplanation of settings in Chapter 5).HOLD. Main knob at 0.


3. Use the button marked A to transfer theammeter testpoint to the output that isbeing used.



6. Set the desired current (it must exceed thepick-up value by an ample margin) bychanging the setting of the main knob.Activate ON briefly using the start switchand read the current from the ammeter.Repeat until the desired current has beenset.

7. Activate ON+TIME using the start switchand keep it activated until tripping occurs.


Method 3: Time-limited injectionTime-limited generation, as its name implies,interrupts output after a preset time. This is usefulwhen you want to prevent overheating in theprotective relay equipment.

1. Initial settings: OFF. MAX TIME (see expla-nation of settings in Chapter 5.) HOLD.Main knob at 0. The maximum time mustbe set longer than the operating time of theinstantaneous unit.


3. Set the ammeter to measure current at thecurrent output that is being used.




7. Activate ON+TIME using the start switch.

8. Check to see that the instantaneous unithas operated. This can be done by a)checking the indicator lamp on the relay orb) checking to see that the TRIP indicatorlamp on Sverker 750 is on.


10.Search for the lowest current where therelay operates, by repeating from point 6above and onwards.

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6.9 Measuringoperating times forunder (current/voltage/other entity)relaysCurrent and voltage relays

1. Initial setting: OFF.




5. Activate ON using the start switch. Set theentity (current or voltage) being tested sothat it exceeds by an ample margin thevalue that has been preset for the relay.

6. Activate OFF+TIME using the start switch.


6.10 Measuringvoltage

1. Set the voltmeter to measure AC or DC (seeChapter 6).Measuring;VoltageVoltmeterVoltage

2. Connect the voltmeter input to the voltagethat is to be measured. Do not exceed thevoltmeter specifications.

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6.11 Obtaining thecorrect phase anglewhen two or more ACoutputs are beingusedThree separate AC voltages can be obtained fromSverker 750:

• 0-250 V AC output from the current source.

• 0-120 V AC voltage source.

• 0-100 A, 0-40 A and 0-10 A current outputs(from different taps on the same winding).

If these are connected to a common point, it’simportant to know the polarity. The right-handterminal in each of the outputs is thus provided witha black dot, thereby indicating that these outputsocket terminals have the same polarity.

6.12 Generatinghigher voltagesSince the AC voltages sent out from Sverker 750are separated from each other and from the mains,series connections can be made. In such case,however, it is important to keep the following inmind:

• Make certain that no insulation voltage limitsare exceeded.

• Do not exceed the insulation voltage of theconnected voltmeter.

• Always comply with the applicable safetyregulations.

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6.13 Setting anauxiliary voltage

1. Connect the Sverker 750 voltmeter input tothe output of the auxiliary voltage source.Auxiliary voltage source

2. Set the voltmeter to measure DC (seeexplanation of settings in Chapter 5).

3. Select the range to be used for the auxiliaryvoltage (20-130 V or 130-220 V).

4. Turn on the auxiliary voltage source and setthe desired value.

5. Turn off the auxiliary voltage source.

6. Connect the auxiliary voltage to the relay.

7. Turn on the auxiliary voltage source. Checkthe voltage on the Sverker 750 voltmeter.

6.14 Testing voltagerelays – both pre-faultand fault voltages

Sometimes it is necessary to change between twovoltage levels and measure the time that elapsesuntil operation. This can be done using the Sverker750 make/break contact.

1. Connect the voltmeter input to the 0-250 Voutput. Activate ON using the start switch.Set the voltage that corresponds to the pre-fault voltage.

2. Set the start switch to OFF.

3. Connect the voltmeter input to the 0-120 VAC voltage source. Turn on the AC voltagesource and set the voltage that corre-sponds to the fault voltage.

4. Turn off the AC voltage source.

5. Connect together the terminals marked withblack dots on the 0-250 V output and onthe AC voltage source. From this junction,make a connection to one side of therelay’s voltage input.

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6. Connect the left-hand socket terminal onthe 250 V output to the upper left-handsocket terminal on the make/break contact(the one that performs a break function).

7. Connect the left-hand output socket termi-nal on the AC voltage source to the upperright-hand socket terminal on the make/break contact (the one that performs amake function).

8. Connect the lower left-hand socket terminalon the make/break contact to the otherside of the relay voltage input.

9. Make certain that the relay tripping outputis properly connected to Sverker.

10. Activate ON using the start switch, where-upon the pre-fault voltage will be applied tothe relay.

11. Turn on the AC voltage source.

12. Activate OFF+TIME using the start switch,whereupon fault voltage will be applied tothe relay and timing will start.

13. Read the time at which the relay operated.

6.15 Changing thephase differencebetween current andvoltageUsing the built-in capacitor and set of resistors, youcan change the phase difference between currentand voltage. You can connect the phase-changingcomponents at either the current output or voltageoutput.

TIP! It is easiest to change the phase angle ofthe entity (current or voltage) having thelowest power.The capacitor can be connected in serieswith the current output if the current isnot excessively high. This provides almosta 90o phase displacement of the current.The phase angle is determined by thephase-changing components and theload. Since changing the phase anglealso causes the current/voltage tochange, you must first adjust the phaseangle and then set the current/voltage.If possible, use the ammeter’s externalpanel input to measure the phase anglesince this will provide better accuracy andlower currents.

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Example: Phase shift at an inductive load (current lagsvoltage). Current selected as reference.a) Current generated by Sverker (ammeter connectedinternally).b) Current generated by external source (ammeter panelinput used).

a) b)

Definition of polarities.a) Current generated by Svreker (ammeter connectedinternally).b) Current generated by external source (ammeter panelinput used).

6.16 Measuring thephase angleThe phase angle between the current being meas-ured by the Sverker 750 ammeter and the voltageacross the Sverker 750 voltmeter input can bedisplayed (see Explanation of settings in Chapter 5).

Phase angle Current and voltage can be measuredregardless of whether or not they are generated bySverker 750. If the current is less than 6 A, it shouldbe measured at the ammeter’s external input, sinceit provides better accuracy.

The phase of the current or the voltage can beselected as reference, see chapter 5 Settings.

a)

b)

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6.17 Measuringexternal cycle time(measurement notinitiated bySverker 750)The timer’s start and stop inputs are independent ofeach other. Activation takes place when the presetcondition is met (pulse-edge triggering). Theseinputs are not polarity-dependent when voltage isbeing measured.

1. Initial settings: OFF. Main knob at 0.

2. Connect the Sverker 750 start input(START) to the circuit that is to start meas-urement.

3. Connect the Sverker 750 stop input (STOP)to the circuit that is to stop measurement.

4. Set the start condition (to CLOSURE, VOLT-AGE for example).

5. Set the stop condition (to CLOSURE, CON-TACT for example).

6. The input state indicator lamp at each inputshows whether or not the desired conditionis present there before the cycle starts.

7. Activate ON+TIME using the start switch. 8.The timer is now ready to start.

6.18 Measuring Z, P,R, X, VA, VAR andCOS ϕϕϕϕϕSverker 750 can be used to measure these entities,even in external circuits. Here the currents phase isused as reference. For information about phasedefinitions, see section 6.15, entitled ”Measuringthe phase angle”.

1. Connect the Sverker 750 ammeter andvoltmeter to the current and voltage circuitrespectively.

2. Check the AC/DC setting. See explanationof settings in Chapter 5.

3. Set the entity that is to be measured (seeexplanation of settings in Chapter 5).

NOTE! that the HOLD (freeze) function can alsobe used for these measurements.

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6.19 Plotting amagnetization curve

Since Sverker 750 has an ammeter, voltmeter andvoltage output, it can be used to plot points on acurrent transformer magnetization curve.

IMPORTANT! Be sure to comply with theapplicable safety regulations, and neverexceed any insulation voltage limits.

1. Initial setting: OFF. Main knob at 0.

2. The primary side of the current transformermust be open, and the secondary sidemust not be connected to any other circuit.

3. Connect the Sverker 750 voltage output tothe secondary side of the current trans-former. One side of this voltage outputmust be connected via the Sverker amme-ter input. If a voltage higher than 250 V isneeded, proceed as instructed in section6.11, entitled ”Generating higher voltages”.

4. Connect the Sverker 750 voltmeter input tothe Sverker 750 voltage output.

5. Use the button marked A to transfer theammeter testpoint to the panel input usedfor measurement in external circuits.


7. Turn the knob clockwise and read thecurrent and voltage for different points onthe curve.

8. When the knee of the curve is reached,slowly lower the voltage and set the startswitch to OFF.

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6.20 Testing anautomatic recloser

Sverker can be used to measure partial times in areclosing cycle. The relay times and the de-ener-gized intervals are stored so that you after themeasurement can scroll through them on the displaywhenever desired. The Sverker 750 make/breakcontact can be used to stimulate the state of thebreaker for the automatic recloser.

1. Initial setting: OFF. Main knob at 0. SetSverker 750 to measure reclosing (seeexplanation of settings in Chapter 5). Youcan also set a time limit so that the testwill be interrupted when the time limitexpires.

2. Connect the reclosing signal to the Sverker750 timer start input (START). The relaytripping signal must be connected to thetimer stop input (STOP). Connect the relaycurrent input to a suitable current output onSverker 750. If the automatic recloserrequires a breaker-state indication signal,you can create such a signal by connectingthe Sverker 750 make/break contact(perhaps in series with the voltage source)to the automatic recloser.

3. Use the button marked A to transfer theammeter testpoint to the output that isbeing used.

4. Set start and stop conditions


6. Turn up the desired test current.

7. Set the start switch OFF.

8. Start the reclosing cycle by activatingON+TIME using the start switch.

9. Check that the switch is in position OFFafter the cycle has been completed.

10.You can now scroll through the relay timesand the de-energized intervals on thedisplay using the and buttons. Pleasenote: Current value is not shown.

T#02: 489ms IT#03: 75ms 0

11.After you press the button marked MODE,you can start a new test.

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6.21 Measuring thetrip pulse length1. Initial settings: OFF. TRIP+PULSE TIME,

HOLD. Main knob at 0. Measuring;Trippulse lenghtTrip pulse length


3. Use the button marked A to transfer theammeter testpoint to the input used formeasurement in external circuits.

4. Set the start condition to INT.

5. Set the stop condition (to CLOSURE +OPENING, CONTACT for example).

6. Activate ON using the start switch. Set theentity (current or voltage) being tested sothat it exceeds by an ample margin thevalue that has been preset for the relay.

7. Set the start switch OFF.

8. Start the test cycle by activating ON+TIMEusing the start switch.

9. After the test cycle the display windowshows the result.

T#00: 689ms IT#01: 53ms 0

T#00 = Time from START to STOP.

T#01 = Time of trip pulse.

Total = The total time, T#00 + T#01. Press the button once to get here. Read and notethe times at which the relay operated.Please note: Current value is not shown.

10.After you press the button marked MODE,you can start a new test.

5 1

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7 Application examples7.1 Testing voltagerelaysThe following functions are to be tested:

• Pick-up function: U > ON

• Drop-out function: U > OFF

• Operating time: U > ON + TIME DELAY

Test hookup and initial settings1. Connect for testing as shown in the above

diagram. a. Connect the Sverker 750 ACvoltage to the protective relay equipment. b.Also connect the Sverker 750 AC voltage tothe voltmeter input. c. Connect the timerstop input (STOP) to the relay trip output.

2. Turn on power to Sverker 750 using themains switch.

3. Activate the desired stop condition for thetimer by setting the stop input for a makeand/or break function and for a live or deadcontact.

4. If the display window is to freeze the volt-age reading at the instant of operation,check to see that the HOLD function isactive (it can be activated by means of theHOLD button).

Pick-up and drop-out functions: U >ON and U > OFF1. Turn on the Sverker 750 voltage source by

activating ON with the start switch (pressthe key once), whereupon the ON indica-tor lamp will light.

2. Increase the voltage carefully until theprotective relay equipment operates (U >ON), whereupon the Sverker 750 TRIPindicator will start to glow steadily.

3. Read the U > ON value from the Sverker750 display window.

4. If the freeze function has been activated,press the HOLD button twice to unfreezethe value shown.

5. Decrease the voltage until the relay is reset(U > OFF (drop-out)), whereupon the TRIPindicator will be extinguished.

6. Read the U > OFF (drop-out) value from theSverker 750 display window.

7. Decrease the voltage to 0.

8. Turn off the Sverker current source bysetting the start switch to the OFF position.

Operating function: U > ON + TIMEDELAY1. Turn on the Sverker 750 voltage source by

activating ON with the start switch where-upon the ON indicator lamp will light.

2. Increase the voltage to 1.5 x U > ON.

3. Turn off the Sverker voltage source bysetting the start switch to the OFF position.

4. Activate ON + TIME by means of the startswitch, whereupon the timer will start andthe voltage source will start to generatevoltage.

5 2

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5. When the protective relay equipment oper-ates, the timer will stop automatically andthe voltage source will be turned off auto-matically, whereupon the TRIP indicator willstart to flash.

6. Read the U > ON + TIME DELAY value fromthe Sverker 750 display window.

7. Repeat the U > ON + TIME DELAY run twoor three times to confirm its accuracythrough repetition.


Finishing the test

• Enter the values read from the display intothe test report.

• Turn off power to Sverker 750 using themains switch.

• Disconnect the equipment.

7.2 Testingovercurrent relaysThe following functions are to be tested:

• Pick-up functions: I > ON and I >> ON

• Drop-out functions: I > OFF and I >> OFF

• Operating times: I > ON + TIME DELAY and I>> ON + TIME DELAY


diagram.a. Connect the Sverker 750 current outputto the protective relay equipment.b. Connect the timer stop input (STOP) tothe relay trip output.c. If the test current is not too high, youcan connect one or more resistors into thecurrent circuit in series. Moreover, resistorscan be connected into the Sverker 750 Rx/Cx terminal.


5 3

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2. Increase the current to 1.5 x I > ON. (For aninverse time relay, you should conductthree tests at 1.5, 2 and 3 x I > ON, thusproviding additional testpoints on theinverse time curve.)


4. Activate ON + TIME by means of the startswitch, whereupon the timer will start andthe current source will start to generatecurrent.

5. When the protective relay equipment oper-ates, the timer will stop automatically andthe current source will be turned off auto-matically, whereupon the TRIP indicator willstart to flash.

6. Read the I > ON + TIME DELAY value fromthe Sverker 750 display window.

7. For the remaining phases, repeat the steps1-6 as set forth above.

Pick-up and drop-out functions forthe high-current stage: I >> ON andI >> OFF1. Move the connections to the desired cur-

rent output.

2. Select the desired testpoint for the amme-ter. This can be done step by step with theA button located to the right of the displaywindow.

3. If the protective relay equipment has aseparate trip output for I >>, connect it tothe timer stop input (STOP) after havingdisconnected the trip output of I >.

4. Turn on the Sverker 750 current sourceusing the start switch, whereupon the ONindicator lamp will light.

5. Increase the current rapidly until the equip-ment operates (I >> ON), whereupon theSverker TRIP indicator will start to glowsteadily.

6. Read the I >> ON value from the displaywindow.


8. Decrease the current until drop-out occurs(I>> OFF), whereupon the TRIP indicator willbe extinguished.

3. Move the ammeter testpoint to the desiredcurrent output. When measuring low cur-rents, less than 6 A, use the separateammeter input for better accuracy. This canbe done step by step with the A buttonlocated to the right of the display window.When a testpoint is selected, its indicatorlamp lights.


5. If the display window is to freeze the cur-rent reading at the instant of operation,check to see that the HOLD function isactive (it can be activated by means of theHOLD button).

Pick-up and drop-out functions: I >ON and I > OFF

1. Turn on the Sverker 750 current source byactivating ON with the start switch (pressthe key once), whereupon the ON indica-tor lamp will light.

2. Increase the current carefully by turning themain knob until the protective relay equip-ment operates (I > ON), whereupon theSverker 750 TRIP indicator will start to glowsteadily.

3. Read the I > ON value from the Sverker 750display window.


5. Decrease the current until drop-out occurs(I > OFF), whereupon the TRIP indicator willbe extinguished.

6. Read the I > OFF value from the Sverker750 display window.



Operating function: I > ON + TIMEDELAY1. Turn on the Sverker 750 current source by

setting the start switch to the ON position,whereupon the ON indicator lamp will light.

5 4

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9. Read the I >> OFF value from the displaywindow.

Operating time: I >> ON + TIMEDELAY1. Turn on the Sverker 750 current source by


2. Increase the current to 1.1-1.2 x I >> ON.


4. Activate ON + TIME using the start switch,where-upon the timer will start and thecurrent source will start to generate current.


6. Read the I >> ON + TIME DELAY value fromthe Sverker 750 display window.

7. For the remaining phases, repeat the steps1-6 as set forth above.

Finishing the test• Enter the values read from the display into

the test report.

• Turn off power to Sverker 750 using themains switch.

• Disconnect the equipment.

7.3 Testing directionalovercurrent relaysystems or directionalground-fault (earth-fault) relay systemsThe following functions are to be tested:Directionalovercurrent relayDirectional ground-fault relay

• Pick-up functions: I > ON and U > ON

• Drop-out functions: I > OFF and U > OFF

• Operating time: I > ON + TIME DELAY

Test hookup and initial settings

1. Connect for testing as shown in the abovediagram.a. Connect the Sverker 750 separate 0-120V AC voltage output to the protective relayequipment input (U).b. Also connect the Sverker 750 separateAC voltage output to the voltmeter input.c. Connect the Sverker 750 current source,via the ammeter input and the set of resis-tors (the resistor you select will depend on

5 5

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6. Decrease the current until drop-out occurs (I> OFF), whereupon the TRIP indicator will beextinguished.

7. Read the I > OFF value from the displaywindow.

8. Decrease the current to 0. 9. Turn off theSverker 750 current source by setting thestart switch to the OFF position.

Operating time: I > ON + TIMEDELAY1. Turn on the Sverker 750 current source by


2. Increase the current to 1.5 x I > ON. (For aninverse time relay, you should conductthree tests at 1.5, 2 and 3 x I > ON, thusproviding additional testpoints on theinverse time curve.) 3. Turn off the Sverkercurrent source by setting the start switch tothe OFF position.



6. Read the ON + TIME DELAY value from theSverker 750 display.

Pick-up and drop-out functions: U >ON and U > OFF

1. Decrease the voltage using the small knobuntil the voltage drops beneath U.

2. Turn on the Sverker 750 current sourceusing the start switch, whereupon the ONindicator lamp will light.

3. Increase the current with the main knob untilI > ON is exceeded (more than 1.1-1.2 x I >ON).

4. Increase the voltage using the small knobuntil the <%-2>protective relay equipmentoperates (U > ON), whereupon the SverkerTRIP indicator will start to glow steadily.

5. Read the U > ON value from the displaywindow.

the testing current) to the current input (NI)to the protective relay equipment.d. Connect the timer stop input (STOP) tothe relay trip output.



4. Transfer the ammeter testpoint to the panelinput, whereupon its indicator lamp willlight. This can be done step by step withthe A button located to the right of thedisplay window.

5. Select the desired voltage range (0-60 or 0-120 V) for the separate AC output bypressing the button at left beneath theoutput.

6. Activate the separate AC voltage output bypressing the button at right beneath theoutput

Pick-up and drop-out functions: I >ON and I > OFF

1. Increase the voltage using the small knobuntil U > is exceeded. If the protective relayequipment has no adjustable voltagefunction (U >), set the voltage to the valuesame as a fault voltage. Keep this voltageconstant during the remainder of the test. Itis not necessary to test the U-ON and U-OFFvoltage limits. It may, however, be desirableto test I > ON and I > OFF at differentvoltage levels.

2. Turn on the Sverker 750 current source byactivating ON with the start switch (pressthe ? key once), whereupon the ON indica-tor lamp will light.

3. Increase the current until the protectiverelay equipment operates (I > ON), where-upon the Sverker TRIP indiator will start toglow steadily.

4. Read the I > ON value from the displaywindow. If the protective relay equipmentfails to operate, reverse the polarity of thevoltage circuit.


5 6

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7. Decrease the voltage until drop-out takesplace (U> OFF), whereupon the TRIP indica-tor will be extinguished.

8. Read the U > OFF value from the displaywindow.

Finishing the test1.Enter the values read from the display into

the test report.

2.Turn off power to Sverker 750 using themains switch.

3.Disconnect the equipment.

7.4 Testing powerrelays

P: Active power α = 0°

Q: Reactive power α = 90° (phase-shifting capacitor incurrent circuit)

5 7

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The following functions are to be tested:

• Pick-up function: P > ON or Q > ON

• Drop-out function : P > OFF or Q > OFF

• Operating time: P > ON + TIME DELAY or Q >ON + TIME DELAY

• Sensitivity (depends on phase angle)

Make a note of the relay setting data (U, I and timedelay as well as P or Q). If so desired, calculate theoperating/drop-out values that are of interest:P = U * I * cos ϕ or Q = U * I * sin ϕ


diagram.a. Connect the Sverker separate 0-120 VAC voltage source to the protective relayequipment voltage input.b. Connect the Sverker current source tothe protective relay equipment currentinput.c. Connect the timer stop input (STOP) tothe protective relay equipment trip output.d. Also connect the separate 0-120 V ACvoltage source to the voltmeter input.e. If low currents are to be measured,connect the current source to the separateammeter panel input.



4. Activate extra measurement of P or Q bycalling up and using a menu on the displayas follows:MODE - - ’Ω, ϕ, W, VA...’ - CHG - -P(W) or Q(VAr) - SEL - ESC, whereupon thefollowing will be shown on the display:ms - A - V mW.

5. Select the desired voltage range (0-60 or 60-120 V) for the separate AC voltage outputby pressing the left button beneath theoutput.

6. Activate the AC voltage output by pressingthe right button beneath the output. Thenset the voltage.

7. Move the ammeter testpoint to the desiredcurrent output or to the separate ammeterpanel input. This can be done step by step

with the A button located to the right of thedisplay window. When a testpoint is se-lected, its indicator lamp lights.

Pick-up and drop-out functions: Por Q > ON and P or Q > OFF1. Turn on the Sverker 750 current source by


2. Increase the current until operation takesplace (P > or Q > ON), whereupon theSverker 750 TRIP indicator will glow stead-ily. If operation does not take place, reversethe polarity of the protective relay equip-ment voltage circuit.

3. Read the P > ON or Q > ON value on thedisplay (U, I and P or Q).


5. Decrease the current until drop-out occurs (P> OFF or Q > OFF), whereupon the TRIPindicator will be extinguished.

6. Read the P > OFF or Q > OFF value from thedisplay window.

7. Decrease the current to 0.

8. Turn off the Sverker 750 current source bysetting the start switch to the OFF position.

Operating times: P > ON + TIMEDELAY or Q > ON + TIME DELAY

1. Turn on the Sverker 750 current source bysetting the start switch to the ON position,whereupon the ON indicator lamp will light.

2. Increase the current to 1.5 x P > ON.




6. Read the ON + TIME DELAY value from theSverker 750 display.

5 8

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7. Repeat the U > ON + TIME DELAY run two orthree times to confirm its accuracy throughrepetition.

8. Decrease the current to 0.

Finishing the test1. Enter the values read from the display into

the test report.

2. Turn off power to Sverker 750 using themains switch.

3. Disconnect the equipment.

7.5 Testingundervoltage relaysThe following functions are to be tested:

• Pick-up function: U < ON

• Drop-out function : U < OFF

• Operating time: U < ON + TIME DELAY

Test hookup and initial settings

1. Connect for testing as shown in the abovediagram.a. Connect the 0-250 V AC voltage sourceoutput to the protective relay equipment.b. Also connect this output to the voltmeterinput.c. Connect the timer stop input (STOP) tothe relay trip/signal output.



5 9

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4. If the display window is to freeze the voltagereading at trip/signal time, check to seethat the HOLD function is active (it can beactivated by means of the HOLD button).

5. If the 0-250 V AC output is considered notsensitive enough, one of the followingoutputs can be selected: 0-10, 0-40 or0-100 A. Alternatively, the voltage can bedivided by means of the set of resistorsincluded with the Sverker 750.

Pick-up and drop-out functions: U <ON and U < OFF1. Turn on the Sverker 750 current source by


2. Increase the voltage to 1.1-1.2 x the relayvoltage setting.

3. Decrease the voltage until operation occurs(U < ON), whereupon the Sverker 750 TRIPindicator will start to glow steadily.

4. Read the U < ON value from the displaywindow.


6. Increase the voltage until drop-out takesplace (U < OFF), whereupon the TRIP indica-tor will be extinguished.

7. Read the U < OFF value from the displaywindow.

Operating time: U < ON + TIMEDELAY

1. Turn on the Sverker 750 current source bysetting the start switch to the ON position,whereupon the ON indicator lamp will light.

2. Increase the voltage to 1.1-1.2 times therelay voltage setting (1.1-1.2 x U < ON).

3. Activate OFF + TIME using the start switch(press the key), whereupon the currentsource stops to generate voltage and thetimer starts .

4. When the protective relay equipment oper-ates, the time stops automatically, where-upon the TRIP indicator starts to flash.

5. Read the U < ON + TIME DELAY value fromthe display window.

6. Repeat the U < ON + TIME DELAY run two orthree times to confirm its accuracy throughrepetition.

Finishing the test

1. Enter the values read from the display intothe test report.

2. Turn off power to Sverker 750 using themains switch.

3. Disconnect the equipment.

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8 Troubleshooting8.2 Displayed values

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S V E R K E R 7 5 0


8.3 Error messagesetc.

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6 2

S V E R K E R 7 5 0


9 Specifications9.1 GeneralThe following specifications are for an ambienttemperature of +25?C (+77?F) and nominal inputvoltage. Sverker 750 is designed to comply with EUstandards as set forth in IEC 1010 and also with EUEMC directives.

The specifications are subject to change withoutnotice.

9.2 OutputsThe current outputs of the currentsource

A thermal protection is built into the output transformer, and theprimary side is protected by a miniature circuit breaker.

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6 3

S V E R K E R 7 5 0


The voltage outputs of the currentsource

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NOTE! Time-limited (max-time) generationshould be used for times shorter than 1minute.

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021-06)V01fospets(

031 021 52.0

This output is protected by a PTC resistor.

Moreover, it is equipped with two 400 V transientvoltage suppressors (transils). One is locatedbetween the output contacts, and the other betweenthe output contact marked with a dot and ground(earth).

Auxiliary DC voltage output

egnaR)CDV(

egatloV)CDV(

tnerrucxaM)CDAm(

031-02 02 003

04 523

06 553

08 583

031-09 004

022-031 031 523

051 553

071 583

022-081 004

The auxiliary voltage output is stabilized and alsoshortcircuit proof.

Moreover, it is equipped with two 400 V transientvoltage suppressors (transils). One is locatedbetween the output contacts, and the other betweenthe black output contact and ground (earth)

The respective max currents can be used continu-ously at high output voltages in either of the tworanges. When the respective max currents are usedat low voltages in either range, a temperaturemonitor will trip after a while, and the voltage willbe shut off. However, the voltage will be restored asthe temperature drops.

6 4

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9.3 InputsTimer inputsThese inputs are equipped with 400 V transientvoltage suppressors (transils) at three locations:

• Between the input contacts.

• Between the black input contact and ground(earth).

• Between the red input contact and ground(earth).

Potential state

retemaraP niM epyT xaM tinU

revoegnahchgiHCD|HIV|,CD,level

02 CDV

revoegnahcwoLCD|LIV|,CD,level

5 CDV

,levelegatlovhgiHCA|HIV|,CA 1

06 smrCAV

,levelegatlovwoLCA|LIV|,CA

3

tupnIsmrCAVhgihtatnerruc

|HII|,CD/CA,level

1 5 Am

.sgnidaeremittcerrocedivotpotdedeensiegatlovhgihsihT1

Contact state

retemaraP niM epyT xaM tinU

revoegnahchgiHR,ecnatsiser HI

3 kΩ

revoegnahcwoLR,ecnatsiser LI

057 Ω

htiwtnerructuptuOdetiucric-trohs

tupni

7 31 CDAm

ylppuslanretnIVegatlov s

02 CDV

Maximum values

retemaraP xaM tinU

tupnixaM,CD,egatlov

V| NI CD|

572 CDV

tupnixaM,CA,egatlov

V| NI CA|

052 smrCAV

External ammeter inputMaximum values for external currentmeasurement

retemaraP xaM tinU

tupnixaMCD,egatlov

6 A

tupnixaMCA,egatlov

6 smrA

Voltmeter input

Maximum values for external currentmeasurement

retemaraP xaM tinU

CD,egatlovxaM 006 V

CA,egatlovxaM 006 smrV

6 5

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9.4 Make/BreakcontactThe make/break contact is equipped with a 1 Aminiature circuit breaker

Make/break contact 400 V transient voltage sup-pressors (transils) are provided at three locations:

• Between common contact and ground.

• Between common contact and break contact.

• Between common contact and make contact.

Normal use

noitcnuF dnatnerrucneewtebrorreemiTtcatnockaerb/ekam

tratstnerruC )xam(sm1±

dnetnerruC sm03-0

Breaker state simulation

noitcnuF ehtdnatnerrucneewtebrorreemiTtcatnockaerb/ekam

tratstnerruC)gnisolcer(

)xam(sm1±

dnetnerruC)pirt(

sm01-0

Maximum values

retemaraP xaM tinU

tnerrucxaM 1 A

CA,egatlovxaM 052 CAV

CD,egatlovxaM 021 CDV

9.5 MeasurementsectionTimer

Time can be displayed in seconds or in mains-frequency cycles.

Specifications for the time expressed inseconds

egnaR noituloseR ycaruccA

s999.9-000 sm1 )%10.0+sm1(±

s99.99-00.01 sm01 )%10.0+sm01(±

s9.999-0.001 sm001 )%10.0+sm001(±

Specifications for time expressed in mains-frequency cycles

egnaR noituloseR ycaruccA

selcyc9.999-0.0 selcyc1.0 )%10.0+selcyc1.0(±

99994-0001zH05taselcyc

elcyc1 )%10.0+elcyc1(±

99995-0001zH06taselcyc

elcyc1 )%10.0+elcyc1(±

AmmeterSwitching between ranges can be carried out eitherautomatically or manually as desired.

The measured current can be displayed in amperesor as a percentage of a presettable nominal value.

AC current is measured as true RMS.

DC current is measured as a mean value.

The external current measurement input is protectedby a 6 A miniature circuit breaker, and inputresistance Rin is 0.22 ? .

The values specified below are for measurementintervals (times) longer than 100 ms. The measure-ment error is greater for shorter measurementintervals.

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Specifications for current in amperes

-tseTtniop

egnaR noituloseR fo%(ycaruccA)Am+gnidaer

A01-0 CAA2 :CAA99.1-01.0CAAm01

)Am01+%1(±

CAA02 :CAA99.91-00.2CAAm01

)Am02+%1(±

A04-0 CAA8 :CAA99.7-04.0CAAm01

)Am01+%1(±

CAA08 :CAA99.97-00.8CAAm01

)Am08+%1(±

A001-0 CAA02 :CAA99.91-00.1CAAm01

)Am02+%1(±

CAA002 :CAA99.99-00.02CAAm01

:CAA9.991-0.001CAAm001

)Am002+%1(±

nretxE CAA6.0 :CAA995.0-000.0CAAm1

)Am2+%1(±

CAA6 :CAA999.5-006.0CAAm1

)Am02+%1(±

CDA6.0 :CDA995.0-000.0CDAm1

)Am2+%5.0(±

CDA6 :CDA999.5-006.0CDAm1

)Am02+%5.0(±

Specifications for current displayed as apercentage of a presettable nominal value.

noituloseRegatnecreP

noituloseReulavlanimoN

ycaruccA

%1:%999-000 A1:A999-000 %1

VoltmeterSwitching between ranges can be carried out eitherautomatically or manually as desired.

The measured voltage can be displayed in volts oras a percentage of a presettable nominal value.

AC voltage is measured as a true RMS.

DC voltage is measured as a mean value.

The input is protected by a PTC resistor, and inputresistance Rin is 220 k?.

The values specified below are for measurementintervals (times) longer than 100 ms. The measure-ment error is greater for shorter measurementintervals.

Specifications for voltage displayed in volts

egnaR noituloseR ycaruccA)Vm+gnidaerfo%(

CAV6 :CAV99.5-00.0CAVm01

)Vm01+%1(±

CAV06 :CAV99.95-00.6CAVm01

)Vm02+%1(±

CAV006 :CAV99.99-00.06CAVm01

:CAV9.995-0.001CAVm001

)Vm002+%1(±

CDV6 :CDV99.5-00.0CDVm01

)Vm01+%5.0(±

CDV06 :CDV99.95-00.6CDVm01

:CDV99.99-00.06CDVm01

)Vm02+%5.0(±

CDV006 :CDV9.995-0.001CDVm001

)Vm002+%5.0(±

Specifications for voltage displayed as apercentage of a presettable nominal value.

noituloseRegatnecreP

noituloseReulavlanimoN

ycaruccA

%1:%999-000 A1:A999-000 %1±

Reclosing test

mumixaMforebmunsgnisolcer

gnitsetxaMllarofemit

sgnisolcer

xamtanoituloseRemitgnitset

semit94 s999 s1

Extra measurements

Power factor and phase anglemeasurements

The following specifications are for voltages andcurrent readings that are higher than 10% of theselected range.

tinudnametI egnaR noituloseR ycaruccA

rotcafrewoPsoc ϕ

ot)pac(99.0-)dni(99.0+

10.0 40.0±

elgnaesahP)°(ϕ

953-000 ° 1° 2± °

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The following items can be measured for AC:

• cos ϕ• ϕ in (°) with current as reference (Iref)

• ϕ in (°) with voltage as reference (° ,Uref)

Impedance- and power measurements

For these measurements, the result is calculatedusing 2 or 3 items. The measurement error obtaineddepends on the measurement errors for the itemsincluded (U, I and sometimes ϕ ).

foenostneserperX(egnaR)wolebdetsilsmetieht

noituloseR

Xm999-000 100.0

X99.9-00.1 10.0

X9.99-0.01 1.0

X999-001 1

Xk99.9-00.1 01

Xk9.99-0.01 001

Xk999-001 0001

For AC, the following items (X above) can bemeasured:

• Z (Ω and °)

• Z (Ω)

• R and X (Ω and ?)

• P (W)

• S (VA)

• Q (VAr)

For DC, the following items (X above) can bemeasured:

• R (Ω)

• P (W)

9.6 OtherInjection

Maintained

Injection continues without any time limitation.

Momentary

Injection continues only as long as be button is keptdepressed.

Minimum momentary injection time is 0.1 s.

Max timeInjection stops automatically when the presetmaximum time is reached.

Max injection time: 99.9 s.

Resolution at max time: 0.1 s.

FilteringIf filtering was selected, five successive readingsare averaged. The following can be filtered:

• Current

• Voltage

• Extra items that are measured

Off delayThe turning off of generation can be delayed aftertripping throughout a specified time interval that isexpressed in mains-frequency cycles.

Max off delay: 999 mains-frequency cycles.

Resolution at max off delay: 1 cycle.

MemoriesThere are 10 memories numbered 0 through 9

Languages

The menus, prompts etc. can be expressed in one offive languages: English, German, French, Spanishor Swedish.

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Set of resistors

egamhorotsiseR tnerrucxaM

5.0 Ω A01

1 Ω A7

52 Ω A2

001 Ω A7.0

005 Ω A3.0

k1 Ω A22.0

k5.2 Ω A11.0

Capacitor

Capacitance: 10 µF

Max voltage: 450 V AC

Mains voltage

Art.No. CD-12300: 230 V AC ±10%

Art.No. CD-11100: 115 V AC ±10%

Weight

00321-DC 00111-DC esactropsnarT

)sbl7.93(gk81 )sbl6.83(gk5.71 )sbl6.71(gk0.8

Dimensions

057rekrevS esactropsnarT

htdiW )"8.31(mm053 )"0.42(mm016

htpeD )"6.01(mm072 )"8.01(mm572

thgieH )"7.8(mm022 )"8.31(mm053

Ambient temperatures

During use

0 to +50°C ( +32 to +122°F)

During transportation

-40 to +70°C ( -40 to +158°F)

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IndexA

AC Voltage source .............................. 14, 22Accessories............................................... 8Ammeter ................................................. 30Ammeter & voltmeter ......................... 13, 21Application examples ............................... 51Automatic recloser ................................... 49Auxiliary voltage....................................... 44Auxiliary voltage source...................... 14, 22

B

Break contact .................................... 15, 23Button functions ...................................... 26

C

Capacitor .......................................... 15, 23Change numerical value ........................... 26Computer inter face .................................. 16Control panel ........................................... 17Current source .................................. 10, 18

D

Direction indicator .................................... 26Directional ground-fault relay syste ........... 54Directional overcurrent relay ..................... 54Display .............................................. 12, 20

E

External cycle time ................................... 47

F

Filter ....................................................... 32Finding pick-up and drop-out limits ............ 40

G

Generating higher voltages ....................... 43

H

High currents........................................... 38HW ......................................................... 35

I

Injecting current ....................................... 36Injection .................................................. 29

L

Language ................................................ 34Low currents ........................................... 38

M

Magnetization curve ................................. 48Make/Break contact .......................... 15, 23Making settings ....................................... 25Measuring current ................................... 37Measuring voltage ................................... 42Menu system .......................................... 28

N

Numerical value ....................................... 26Numerical value change ........................... 26

O

Off delay ................................................. 33Operate ................................................... 36Operating times ................................. 41, 42Overcurrent relays ................................... 52

P

Phase angle ...................................... 43, 46Phase difference ..................................... 45Pick-up and drop-out limits ....................... 39Power relays ............................................ 56Power supply ..................................... 16, 24

R

Recall ..................................................... 33Remote control ........................................ 34Resistor set and capacitor........................ 15

S

Safety regulations ...................................... 6Save/Recall ............................................ 33Select current output ............................... 37Service ..................................................... 6Set of resistors and capacitor ................... 23Setting mode ........................................... 25Setting the desired current ....................... 38Specifications.......................................... 62SW — HW ............................................... 35

T

Test mode ............................................... 29Timer ......................................... 11, 19, 32

Start conditions 11Stop conditions 11

Trip indicator ..................................... 12, 20Trip pulse length ...................................... 50Troubleshooting ....................................... 60

U

Undervoltage relays ................................. 58

V

Voltage relays .................................... 44, 51

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Voltage source ................................... 14, 22Voltmeter ................................... 13, 21, 30

7 2

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Head office: Programma Electric AB, Eldarvägen 4, SE-187 75 TÄBY, Sweden.Phone +46 8 510 100 70. Fax +46 8 510 114 44.E-mail [email protected] Internet www.programma.se

Finland: Programma Electric Oy, PL 188, FI-002 01 HELSINKI, Finland.Phone 09-682 2556. Fax 09-692 5553. E-mail [email protected]

France: Programma Electric Sarl, 15 rue Vignon, 75008 PARIS, France.Phone 01 533 041 67. Fax 01 533 041 99.

Germany: Programma Electric GmbH, Alte Sattelfabrik 3, DE-61350 BAD HOMBURG v.d.H. Germany.Phone 06172-986 50. Fax 06172-828 18. E-mail [email protected]

Norway: Programma Electric A/S, P.B. 121, NO-4852 FAERVIK, Norway.Phone 37 09 37 15. Fax 37 09 37 16. E-mail [email protected]

Poland: Programma Electric Sp.z o.o., Ul. Barska 28/30, room 109, PL 02 - 315 WARSZAWA, Poland.Phone 022 822 68 57. Fax 022 822 68 57. E-mail [email protected]

Singapore: Programma Electric Asia Pte Ltd, No 2 Boon Leat Terrace, #08-01 Harbourside Industrial Building 2, Singapore 119884.Phone (65) 272 0050. Fax (65) 272 9919. E-mail [email protected]

Switzerland: Programma Electric AG, Oberes Hasel 630, CH-5727 OBERKULM, Switzerland.Phone 062-768 20 30. Fax 062-768 20 33. E-mail [email protected]

United Kingdom: Programma Electric Ltd, Millets Farm, Garford, Abingdon, Oxon, OX13 5PD, United Kingdom.Phone 01865 391 600. Fax 01865 392 100. E-mail [email protected] Internet www.programma.co.uk

U.S.A: Programma Electric Inc, 1225 Carnegie St., Suite 109, Rolling Meadows, Illinois 60008, U.S.A.Phone 847-506-1126. Fax 847-506-1760. E-mail [email protected] Internet www.programmainc.com

Venezuela: Programma Electric C.A., Apartado Postal 90.501, Zona Postal 1.083-A, El Hatillo - Estado Miranda, Venezuela.Phone 02 576 04 94. Fax 02 577 35 53. E-mail [email protected]

Sverker750 Mae

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