Technical Specification Master Switch - PM ENERGI · 2018. 1. 30. · IEC 60146: Semiconductor...

Technical Specification

Master Switch 100/800 A THREE-POLE/FOUR-POLE

MASTER SWITCH

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INDEX

1. SCOPE ............................................................................................................................................................... 2

2. DESCRIPTION OF THE SYSTEM ..................................................................................................................... 2

3. APPLICABLE STANDARDS ............................................................................................................................. 3

4. APPLICATIONS ................................................................................................................................................. 4

5. DESCRIPTION OF STS COMPONENTS .......................................................................................................... 5

5.1 Sources .................................................................................................................................................. 5

5.2 Control and diagnosis .......................................................................................................................... 5

5.3 Static switch .......................................................................................................................................... 5

5.4 Output stage .......................................................................................................................................... 5

5.5 Internal power supply devices ............................................................................................................. 6

5.6 Switches and protection ....................................................................................................................... 6

6. OPERATING MODES ........................................................................................................................................ 7

6.1 Description of general functions ......................................................................................................... 7

6.2 Automatic Transfer Mode ..................................................................................................................... 7

6.3 Manual Transfer Mode .......................................................................................................................... 8

6.4 Re-transfer Mode................................................................................................................................... 8

6.5 Operating modes and ambient conditions ......................................................................................... 9

7. CONTROL PANEL .......................................................................................................................................... 11

7.1 LED panel and keys ............................................................................................................................ 11

7.2 LCD Display ......................................................................................................................................... 12

8. COMMUNICATIONS ........................................................................................................................................ 14

8.1 Voltage-free contacts: ........................................................................................................................ 14

8.2 232 serial communications port ........................................................................................................ 14

9. OPTIONS ......................................................................................................................................................... 15

9.1 Hardware .............................................................................................................................................. 15

9.2 Communication ................................................................................................................................... 15

9.3 Remote Monitoring ............................................................................................................................. 16

10. TECHNICAL DATA SHEET 100-400 A ........................................................................................................... 18

11. TECHNICAL DATA SHEET 600-800 A ........................................................................................................... 20

MASTER SWITCH

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1. SCOPE

This specification covers all aspects of the MASTER SWITCH automatic static transfer switch (STS), this device enables

automatic or manual transfer between two AC power supply sources, ensuring a transfer time of less than a ¼ of one cycle. The use of MASTER SWITCH static transfer switches within an electrical distribution system provides a means of secure

protection against any potential disruption of the power supply, due to interruptions of the supply source or failure of the distribution lines caused by environmental phenomena or human error. For further information with regards to other power related products visit: www.riello-ups.com.

2. DESCRIPTION OF THE SYSTEM

The MASTER SWITCH series is available in 100-150-200-250-300-400-600-800 Ampere models; the entire range is

available in three or four pole formats for either three-phase or three-phase plus neutral switching installations. The MASTER SWITCH provides a guaranteed means of switching between two alternative and independent power

sources thus ensuring a continued supply of power to any critical load. The switching can either be AUTOMATIC should the incoming supply fall outside the predefined window of operation (user-defined), or MANUAL should an operator want to force switching between the two input supply sources from the mimic display panel or via a remote connection. Once the PREFERRED source has been selected (PS) the MASTER SWITCH will continue to supply all critical loads

from this source as long as it remains within the predefined window of operation; therefore should this window of operation be exceeded the MASTER SWITCH will transfer the critical load using a BREAK-BEFORE-MAKE switching method from the PREFERRED source to the ALTERNATIVE source (AS), this switching method ensures that the two

incoming sources are never parallel-connected. MASTER SWITCH is compatible with most Critical, Industrial and Information Technology (IT) installations due to its high

performance level:

a) Microprocessor logic control that guarantees:

Fast and safe switching between the two power supply sources

Complete monitoring of all parameters on the LCD display panel

Continuous monitoring of the SCR functions

Advanced remote diagnosis (via RS232 and TCP/IP) b) Redundant power circuits:

The power supply for the internal logic is provided by two physically separate power circuits that are completely independent of one another; therefore these can be substituted in a hot replacement mode without causing any interruption of power to the critical load.

Even if the power supply from both sources fail, the control logic will remain fully operational thanks to the Power Supply Backup function, which guarantees auxiliary power to the circuits by means of an

independent external energy source.

c) Maximum protection:

In the unfortunate event of a short circuit in the output, the MASTER SWITCH will block any switching to

eliminate the risk of spreading the short circuit and its negative effects to other applications or supplies.

A back-feed control circuit ensures automatic activation of the MCCB switch whenever there is a back-feed of power to either of the two input supplies.

MASTER SWITCH is equipped with a double redundant ventilation system known as fan redundancy plus. Thanks to this feature, in the unlikely event that two fans fail at the same time, the remaining fans

would be sufficient to dissipate the heat generated at the nominal load, even when operating within an ambient temperature of up to 40°C. The fans can also be substituted in hot replacement mode to ensure

continuous operation of the system during any repairs or routine maintenance. d) Easy front access:

To the control cards mounted within for rapid diagnosis and/or substitution

To all of the parts subject to control, maintenance and/or substitution

To the input supply connections, which enables easy cable installation either from below or above

MASTER SWITCH

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MASTER SWITCH is available in the models described in the table below; the rated values refer to the effective load

power regardless of whether linear or non-linear:

MODEL DESCRIPTION

4 POLE

MTS100-4 STS 100 A rated current, three-phase plus neutral transfer








3 POLE

MTS100-3 STS 100 A rated current, three-phase without neutral transfer








3. APPLICABLE STANDARDS

The Company’s quality system is certified ISO 9001/2000 (Certificate No. CERT-04674-99-AQ-VEN-SINCERT) and covers all procedures, operating methods, and controls from design through to production and sales. This certification represents a guarantee for each customer that covers:

use of quality materials

rigorous accuracy during production and testing

continuous customer support

In addition to company certification, this product also complies with the following provisions:

IEC 62310-1: Static transfer switch (STS): General and safety requirements

IEC 62310-2: Static transfer switch (STS): Electromagnetic compatibility requirements

IEC 62310-3: Static transfer switch (STS): Methods of specification of performances and test provisions;

EN 60950-1: General safety requirements for information technology devices

IEC 61000-2-2: Electromagnetic compatibility requirements

IEC 61000-4-1: Electromagnetic compatibility (EMC)

IEC 61000-4-2: Electrostatic discharge immunity test

IEC 61000-4-3: Radio frequency and electromagnetic immunity test

IEC 61000-4-4: Transitory overload test

IEC 61000-4-5: Overload immunity test

IEC 61000-4-6: Test of immunity to conducted disturbances induced by radio-frequency fields

IEC 61000-4-8: Magnetic disturbances at power frequency immunity test

IEC 60146: Semiconductor converters – General requirements and line commutated converters

European Directives

LV 2006/95/EC in substitution of LV 73/23/EC

Low-voltage directive: regulates device security and established mandatory CE marking from 1 January 1997. EMC 2004/108/EC

Electromagnetic compatibility directive: regulates UPS immunity and emissions in its operating environment and established mandatory CE marking from 1 January 1996.

MASTER SWITCH

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4. APPLICATIONS

The STS or MASTER SWITCH is configured for two independent power supply sources, these being:

the PREFERRED SOURCE (PS) and the ALTERNATIVE SOURCE (AS). During normal operating conditions the MASTER SWITCH powers the load by means of the PS and guarantees continuous power supply by means of the microprocessor that controls the static switch.

a) In the event of a disruption or irregularities occurring on the PS the load is transferred to the AS and therefore

once the PS returns to normal the load is automatically switched back to the PS (a configurable function)

b) In the case of a short circuit in the output, the MASTER SWITCH will block transfer to the other source, thus eliminating the risk of spreading the short circuit and its negative effects to other applications or supplies

Installation Type Operation Description

MASTER SWITCH

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5. DESCRIPTION OF STS COMPONENTS

5.1 Sources

Both sources are continuously monitored for:

Voltage

Frequency

Sync between the two sources (not controlled by the STS) The user can define which of the two incoming supply sources is to be the preferred source (PS) or the alternative source (AS).

5.2 Control and diagnosis

MASTER SWITCH operations are completely controlled by the microprocessor logic, thus guaranteeing safety and speed in switching operations. The LEDs and the display panel rapidly provide intuitive information with regards to the status of the system, alarms, history events logging and all measured values during operation.

5.3 Static switch

Each source is connected to the output line by means of its static switch assembly which must be sized for the rated value specified on the STS label and is equipped with an internal thermal sensor, which will alert the user by means of a dedicated alarm on the display panel should it exceed the established limit

The STS is available in a three-pole format (switching of the three phases) and a four-pole format (switching of the three phases and the neutral line), the correct format must be chosen on the basis of the upstream protection and the type of grounding within the electrical system in which the STS is to be installed

Each static switch is also provided with a manual bypass for maintenance and an output switch in order to completely isolate the system for maintenance

Both sources are protected by an MCCB switch which is intended to intervene and to protect its associated static switch: 1) in the event of sudden overloads due to short circuits (magnetic function) 2) in the event of extended overloads (thermal function)

In the event that the static switch interrupts the supply of power due to a failure of the component itself (open SCR) or the driver circuit, the control logic will automatically transfer the load to the other available source and block the return to the original source, whilst at the same time generate a (“XFER INHIBIT”) alarm on the display panel

The standard MASTER SWITCH configuration includes back-feed protection. This control makes it possible

to detect simultaneous circulation of power on both sources following malfunctioning of the static switch during standby (the one that is not supplying the critical load). In this event, the control will trigger the MCCB switch protecting the line on standby, inform the user by means of a specific alarm on the display panel and thus prevent the danger of electric shock for an operator accessing the live parts of the device.

The back-feed protection device is compliant with standard IEC 62310

The static switch can also be equipped with an optional circuit to detect SCR short-circuits (see §9)

5.4 Output stage

The system is equipped with rapid and precise control of the output voltage/current in order to:

Monitor the output voltage continuously and control the transfer to the other source should the voltage exceed the predefined limits

Identify an output short circuit and block the transfer of the load to the alternative source. Any protective devices located downstream of the STS must be configured to isolate the short circuit. Sizing/co-ordination of such devices must be accurately calculated with respect to the type of equipment and the selection criteria

MASTER SWITCH

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5.5 Internal power supply devices

The power supply for the internal circuits has been designed using a redundant architecture so that even in the event of a failure of one of the power supplies, power will continue to be supplied to the internal circuits without interruption and therefore will not affect the operation of the STS. The rectifiers can be substituted in a hot replacement mode, without shutting down or bypassing the static switch. MASTER SWITCH is also equipped with an optional auxiliary entry point where an independent external source of power

can be connected to supply the internal circuits of the STS and the display, therefore even during the temporary absence of both the power sources to the STS (PS and AS), all of the internal circuits will continue to operate (see §9).

The general connection diagram of the static switch is shown below:

5.6 Switches and protection

3 Pole

MODEL SW1/SW2 SW3 SW4-1 / SW4-2

MTS100-3 MCCB 100 A -3p 100 A -3p 100 A -3p

MTS150-3 MCCB 160 A -3p 160 A -3p 160 A -3p

MTS200-3 MCCB 250 A -3p 250 A -3p 200 A -3p

MTS250-3 MCCB 250 A -3p 250 A -3p 250 A -3p

MTS300-3 MCCB 320 A -3p 315 A -3p 400 A -3p

MTS400-3 MCCB 400 A -3p 400 A -3p 400 A -3p

MTS600-3 MCCB 630 A -3p 630 A -3p 630 A -3p

MTS800-3 MCCB 800 A -3p 800 A -3p 800 A -3p

4 Pole

MODEL SW1/SW2 SW3 SW4-1 / SW4-2

MTS100-4 MCCB 100 A -4p 100 A -4p 100 A -4p

MTS150-4 MCCB 160 A -4p 160 A -4p 160 A -4p

MTS200-4 MCCB 250 A -4p 250 A -4p 200 A -4p

MTS250-4 MCCB 250 A -4p 250 A -4p 250 A -4p

MTS300-4 MCCB 320 A -4p 315 A -4p 400 A -4p

MTS400-4 MCCB 400 A -4p 400 A -4p 400 A -4p

MTS600-4 MCCB 630 A -4p 630 A -4p 630 A -4p

MTS800-4 MCCB 800 A -4p 800 A -4p 800 A -4p

Micro processor control

MASTER SWITCH

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6. OPERATING MODES

6.1 Description of general functions

MASTER SWITCH enables the transfer without interruption, via automatic or a manual command (local or remote), of

one or more critical load from one three-phase power source to a second three-phase power source and vice versa. The system constantly monitors the two power supply sources; and each time the supply source that is powering the load exceeds the predefined limits (user-defined), the load is automatically transferred onto the alternative power source. The STS continuously monitors the status of the power supply sources but does not interact in any way with them to modify their fundamental parameters. Depending on whether the R-XFER function is enabled or not, the user can choose one of two STS function modes: Default Priority and No priority

In Default Priority mode the user selects the preferred source (PS) from which the STS will maintain the load as long as the parameters remain within the window of acceptable limits; should the window be exceeded then the STS temporarily switches the load to the alternative power source (AS) until the preferred source returns

In No Priority mode the STS will treat both input supply sources as having the same level of priority and therefore the load will not be transferred back to the previous power source even when it returns to within the window of acceptable tolerance limits

MASTER SWITCH enables switching between two independent power sources in both synchronous (the two sources are in phase, the tolerance of which can be defined by the user) and in asynchronous mode. (the two sources are not in phase) A visual and acoustic alarm alerts the user regarding these conditions. When the two lines are synchronous the load is transferred from one source to the other in less than a quarter of a cycle following the supply source fault. With two asynchronous supplies, the transfer can take place following one of the user-

defined methods as described below. The number of poles indicates whether the neutral conductor is switched together with the phases (four-pole switching) or not (three-pole switching). In both cases the neutral line of both sources must always be connected to the STS

Within the three-pole STS, the neutrals from the two sources are always connected together. Only the phases are switched between the two input supply sources without overlapping (Break Before Make), with any source and in any load condition

In the four-pole STS the switching of the neutral line is overlapped (Make Before Break) to avoid any potential voltage outages that could damage the critical load. The switching of the three phases is performed in Break Before Make mode, the same as the three-pole configuration

6.2 Automatic Transfer Mode

Synchronous sources

The STS constantly monitors the voltage and frequency of both input supply sources. If the supply source powering the load exceeds the predefined voltage or frequency tolerances, the STS automatically transfers the load onto the alternative power source within an interval of approx. 4 msec.; the transfer is always carried using the method “0-curr“ (zero current mode)

Asynchronous Sources

In this case transfer can be executed in one of three user-defined modes: 1) NSYNC.TR:0-curr (zero current mode): the transfer is executed at the instant when output is at zero. This

guarantees that there is no overlapping of power between the two sources and the maximum duration of the transfer is approx. 10 msec.

2) NSYNC.TR:DELAY (delay time mode): the transfer takes place after a delay that can be configured by the

user, (default value is 24 msec) during this period the load is not powered 3) NSYNC.TR:DISABLE (disable mode): the transfer is inhibit for asynchronous supply sources

MASTER SWITCH

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6.3 Manual Transfer Mode

Manual transfer can be initiated from the SW6 triple position selector switch (Source 1, Auto, Source 2) which is located behind the front door, or via the LCD display/control panel. The user can select between two modes of manual transfer:

1) transfer with zero current (zero current mode): this transfer is executed when the output current phase is at

zero; the transfer interval is approx. 2 msec. 2) swift transfer (Swift transfer mode): on activation of a manual transfer, the STS monitors the two sources

for 30 seconds. If within this period the two sources are in phase with one other, the STS transfers the load in sync using the zero-current method. If during this period the two sources are never in sync, no switching

takes place and the command has to be given again and will again be active for a further interval of 30 seconds

Note:

1- Use of the SW6 selector switch for manual transfer must be executed by trained personnel as it forces the MASTER SWITCH to keep the load on the selected source and does not enable transfer to the other source even in the event of failure conditions. Similarly if the supply source that has been selected exceeds the predefined limits, SW6 rotation to that source doesn’t activate the transfer.

2- The SW6 selector switch should be positioned at “Source1” or “Source2” whenever maintenance activities are performed on the STS. This forces the STS to power the load from one of the two sources and thereby prevents failures of supply to the loads, due to irregular current values that can be induced by the maintenance activities, thus activating unexpected transfers.

6.4 Re-transfer Mode

Re-transfer mode refers to the switching of the power supply back to the preferred source (PS) following a temporary transfer of the load to the alternative source (AS). The re-transfer mode can be enabled, or disabled, by the user and can also be delayed, with respect to the time when the PS returns within the predefined voltage and frequency window limits, by 16 to 127 seconds.(“D.R-EFER”)

When neither source has been assigned preferred, the load is not switched back to the PS. Synchronous sources

If the user identifies one of the two sources as PS, the LED that corresponds to the selected source lights (L1 or L2 on the mimic panel). The selected preferred source will power the load continuously, provided it remains within the predefined tolerance limits. A failure or disruption of the PS will trigger transfer of the load to the AS. If Re-transfer is enabled, when the parameters of the preferred source return to normal, the load will automatically be transferred back to the preferred source after the configured delay. (“D.R-EFER”) Re-transfer will be executed in zero current mode, that is when the load phase is at zero, and in any case with an

interval of less than one quarter of a cycle (typically 4 msec). Asynchronous Sources If the two sources are asynchronous, the user can define the mode of Re-transfer back to the preferred source:

1) RET.MOD:0-curr (zero current mode): re-transfer is performed only when the phase of the load current is at

zero

2) RET.MOD:WAIT SYNC (wait synchron mode): the STS will wait until the two sources are in sync (for 30

seconds continuously at least) and then execute the re-transfer. It is possible that the two sources are never in sync, effectively excluding any re-transfer

3) RET.MOD:DELAY (delay time mode): the re-transfer takes place after a delay that can be set by the user

(default value is 24 msec.) during this period the load is not powered

4) RET.MOD:SWIFT (swift mode): the STS will transfer the load back to the preferred source at the instant when

the two sources are in sync within an interval of 30 seconds. If this does not occur, the load is not transferred back to the PS. The swift re-transfer mode must be activated by the user from the mimic panel

MASTER SWITCH

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6.5 Operating modes and ambient conditions

MASTER SWITCH has been designed to guarantee uninterrupted power supply even in the presence of critical ambient

conditions such as:

1- OVERLOAD: MASTER SWITCH can operate with an overload of up to 105% of the rated value; for greater loads the overload control

can be enabled or disabled:

Enabled:

Overload capacity Alarm display type Action

101-150% Overload STS will block the output after 60 seconds

151-200% Overload STS will block the output after 10 seconds

>200% Short circuit STS will block the output after 250 milliseconds

Disabled:

An “overload inhibit” message will appear on the display. The internal logic will not activate the STS command to block the output; therefore all protection is entrusted to the MCCB switch at the input of each supply source to the STS or to the electrical system protection downstream from the static switch.

2- OVERHEATING:

MASTER SWITCH can function without interruption in conditions of ambient temperature of up to 40°C; Internal

ventilation provides adequate heat dissipation. If the ambient temperature exceeds 40°C, or the ventilation of the STS is interrupted, when critical parts reach 75°C the MASTER SWITCH will trigger internal protection and alert the user (“Overtemp” alarm); the STS is equipped with an

internal second level protection which will interrupt the supply to the load as soon as the environment conditions become critical for the correct/safe operation of the STS. The MASTER SWITCH is equipped with double redundant ventilation known as “fan redundancy plus”. The four fans

installed to cool (eight for the 600 A and fourteen for the 800 A model) the system pull air from below and push it upwards. In the event that even two of the fans fail, those still functioning are sufficient to dissipate all of the heat

generated at the rated value up to an ambient temperature of 40°C. Thanks to the “hot replacement” feature, if a fan fails it can be substituted without interrupting the supply to the critical

loads.

3- SHORT CIRCUIT IN OUTPUT:

The presence of a short circuit in the output from the STS will alter the voltage waveform of the power source but will not trigger the MASTER SWITCH to transfer the load to the second source because the continuous and swift control of

output current will block the switching, due to the detection of the short circuit. This prevents transferring the short circuit and its negative effects to the other source that could normally be supplying other applications. Thus the STS will continue to power the short circuit until one of the following conditions occurs:

The upstream source has the capacity to clear the fault

The MCCB protection on board the STS is triggered

The downstream protection is triggered

The short circuit is extremely severe and interrupts current circulation (for example, melting wires or bars) The installer must co-ordinate the distribution downstream of the STS correctly, that is in accordance with selective criteria, in order to facilitate co-ordinated operation of the protective devices. In this way, a short circuit in the output of the STS will systematically trigger any downstream protection and not the upstream, which would disrupt the power supply to the other applications connected to the same power supply.

MASTER SWITCH

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4- SYNCHRONISM OF THE SOURCES:

The two sources that power MASTER SWITCH are completely independent of each other and the STS does not take

any action that would modify their characteristics (voltage, frequency or synchronisation). Whenever the parameters of the two sources do not permit synchronised switching between them MASTER SWITCH

will adopt one of the various modes described in section 6. Whenever the incoming supply sources are derived from two UPS systems (either single or parallel installation), the UPS systems will guarantee synchronisation between the two sources. If the user wishes to exclude asynchronous switching of any kind between the supply sources, they must use UPS that guarantee synchronised outputs. Appropriately configured Riello UPS units can be used to guarantee the synchronisation between their outputs and other UPS units (even those of other manufacturers) or other independent power supply sources (generators or other independent networks), thanks to the UGS (Unit Group Synchroniser) function integrated within the UPS, which in the

event of a failure of the bypass supply will synchronise the UPS output with another external and independent power source.

MASTER SWITCH

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7. CONTROL PANEL

7.1 LED panel and keys

The control panel is composed of an LCD display of 16x2 characters, 8 LED indicators and 5 input keys.

LED FUNCTION DESCRIPTION

L1 S1 Preferred source Yellow: S1 Preferred

L2 S2 Preferred source Yellow: S2 Preferred

L3 S1 Present Green: S1 power available and SW1 closed

L4 S2 Present Green: S2 power available and SW2 closed

L5 Static switch SS1 closed Green: Static switch SS1 closed

L6 Static switch SS2 closed Green: Static switch SS2 closed

L7 Alarm status Flashing Red: System alarm or absence of sync between the two sources

L8 Output switch ON/OFF Green: SW3 closed and voltage present on the output

UP key Moves the display visualisation to the previous page

DOWN key Moves the display visualisation to the following page

ENTER key Confirmation key

RIGHT (>) key Increases the current monitored data

LEFT (<) key Decreases the current monitored data

MASTER SWITCH

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7.2 LCD Display

The messages on the backlit LCD display (2 lines of 16 characters ) are available in Italian and English. The graphical display, in conjunction with the LED flow diagram provides a close-up, uninterrupted and real-time view of STS status. Directly from the control panel the user can turn the STS on or off, view the electrical parameters of both the input and output supplies and can also be used to configure the STS. The 10 main menus are as described below.

1- STATUS MENU:

Area of the display where the information regarding the general status of the STS is provided:

Preferred source powering the load

Alternative source powering the load

Manual switching has been carried out

Load powered by the S1 source via the by-pass switch

Load powered by the S2 source via the by-pass switch

No output from the STS

Emergency Power OFF command has been activated

Output supply is inhibited due to extended overload

2- INDICATORS MENU:

Main area of the display used to present the UPS operational values (updated in real time):

S1/S2 input voltage and frequency (three phase)

S1/S2 input phase shift (value in degrees)

Output current (absolute and percentage values for the three phases)

STS internal heat sink temperature

STS Internal power supply status

3- COMMANDS MENU:

This menu, together with the 5 command keys, makes it possible to enable switching between the S1/S2 sources, and also to access auxiliary functions:

Manual switching between the S1/S2 sources

Enable (disable) the alarm buzzer

Test the 7 volt-free alarm contacts

Test the LEDs of the mimic panel

Reset the power supply inhibit to the load (“Inhibit reset”)

4- ALARMS MENU:

Displays the logged events (in chronological order) caused by ambient conditions outside the tolerance limits (voltage, high temperature, overloads, etc.) or internal failures. The event log will save the last 127 events, each of which is a snapshot (date/time) of the alarms registered at that time for a maximum of 4000 alarms. (See operating manual for a detailed alarm list) The event log can be viewed on the graphic display by means of the arrow keys. It is also possible to download the event log in word format by means of the “STS Manager” software provided for users.

5- OPTIONS MENU:

This menu makes it possible to personalise the STS functions in accordance with the customer’s requirements, the type and critical importance of supported applications and also ambient conditions. A User Password that the customer can modify through the specific menu ensures protection of the system. MASTER SWITCH is delivered with a default User Password, this being “0000”. The configuration and personalisation options are listed below.

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Personalised configuration of the STS:

PARAMETERS ACRONYM CONFIGURATIONS DEFAULT PARAMETERS

Preferred source selection PREFERRED S1 / S2 S1

Re-transfer enable R-XFER ON / OFF ON

Re-transfer delay D.R-XFER From 16 to 127 seconds 16 sec

Overload control OVLOAD Enable / Disable Disable

Display alarm hold time AL HOLD From 8 to 64 seconds 10 sec

Asynchronous transfer mode NSYNC. TR Disable / Zero current Zero Current + delay

Zero current

Overload Reset OVL. RESET Auto / Manual Auto

Output inhibit reset INH. RESET Auto / Manual Manual

Remote access REMOTE RS 232 Enable RS 232 Disable

RS 232 Enable

Re-transfer mode RET. MOD (Non synchro)

Zero current / Delay Wait synchron / Swift

Swift

Phase sequence control Ph-cyclic AL

ON: Phase sequence control Enable OFF: Phase sequence control Disable

ON

SCR not conducting SCR ALARM Enable / Disable ON

Asynchronous re-transfer manual mode

MAN.XFER Zero current / Swift Swift

Transfer mode with both sources out of limits

XFER ACTION Shut( Output switch OFF) / Stay (Keep load on PS)

Shut

Display languages LANGUAGE English / Italian English

6- TIME/DATE MENU:

This menu, together with the 5 command keys, can be used to set the date and time used by the event log.

7- INFO MENU:

This menu provides information with regards to the status of the RS232 serial communications with the outside and the control software version.

8- ADJUST MENU:

This menu, together with the 5 command keys, makes it possible to vary the configuration and define certain parameters for alarm thresholds and calibration of measurement values. A Service Password protects this area. Only specialised technicians who have been authorised to do so can access the menu and change the password.

9- SERVICE PASSWORD:

This menu provides access to both the SETUP and OPTIONS menus, and makes it possible to modify the access passwords.

10- USER PASSWORD:

This menu provides access to the OPTIONS menu, and makes it possible to modify the access password. The default password is: “0000”.

PS: For a detailed list of configurations and available parameters see the MASTER SWITCH operating manual.

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8. COMMUNICATIONS

MASTER SWITCH is equipped with three levels of communication; these are positioned on the front of the system for

remote control of the STS.

8.1 Voltage-free contacts:

A communications card is available to provide the user with information, through the 7 voltage-free relay outputs (four of them programmable), both N.C. and N.O., these are completely isolated from any hazardous voltages. The relay contacts are connected via a screw-type terminal connector where the connection wires can be terminated.

Note: Relays from one to four can be programmed by the user with a selection from the alarm list; for additional information please refer to the operating manual.

8.2 232 SERIAL COMMUNICATIONS PORT:

The connection with the RS232 serial interface is made via a DB-9 connector on the front panel. To connect the STS with a PC using the RS232 it is necessary to use the 3-metre CC05 cable provided with the STS.

OUTPUT

Relays 1 - Programmable Active if the S1 is outside of the predefined limits

Relays 2 - Programmable Active if the S2 is outside of the predefined limits

Relays 3 - Programmable Active if there is no synchroniszation between S1/S2

Relays 4 - Programmable General alarm (summary message)

Relays 5 Active if preferred source supplies the load

Relays 6 Active if S1 back-feed trip occurs (active for 2 seconds)

Relays 7 Active if S2 back-feed trip occurs (active for 2 seconds)

INPUT

Emergency Power OFF If open for more than two seconds the STS output is switched OFF (Normal close contact)

Baud rate 2400 baud

Connection 3 wire (RX,TX,GND)

Bits 8 bits

Parity None

Flow None

Stop bit 1

MASTER SWITCH

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9. OPTIONS

9.1 Hardware

1- Power supply BACK UP:

MASTER SWITCH can be equipped with an additional circuit to back up power the control circuits by means of an IEC

320 C14 plug located on the front panel of the STS. Providing an independent external power source by means of a small UPS (min 150 W) will make it possible to power the internal control circuits of the STS and the mimic panel even if both power sources S1/S2 fail.

2- SCR Fault detection: MASTER SWITCH can be equipped with an auxiliary control circuit to detect a short circuit on the switching components

(SCR) inside the static switch.

In the case of an SCR short circuit in the supply powering the load, the control will trigger the opening of the MCCB switch to protect the source on stand-by; this prevents the sources from being parallel-connected in the event of a transfer

In the case of an SCR short circuit on the supply in stand-by, the control will trigger the opening of the MCCB switch to protect the same source

In both cases an alarm will appear on the display, “B.FEED S1” or “B.FEED S2”, depending on which MCCB switch is open.

3- Cable top entry arrangement: MASTER SWITCH can be equipped with an external cable guide located on the rear of the system in order to

accommodate the input/output power cables through to the STS terminal connections. NOTE: The three options described above must be ordered at the same time as the MASTER SWITCH.

9.2 Communication

1- RS232 serial duplexer «RS232 DUPLEXER»:

The optional card (“RS232 DUPLEXER”) enables the user to connect a second independent RS232 connection; the

pin connection (previously described) requires the use of the communication cable C005 as delivered with the STS or alternatively a suitably constructed cable in accordance with the connection requirements.

MASTER SWITCH

SPTMTSR3Y16NREN 16

2- ETHERNET communication port «NETMAN 204 (TCP/IP)»

If a TCP/IP connection is required in addition to the RS232 serial port, an adaptor (“NETMAN 204 + Communication card adapter”) may be added, to allow ETHERNET NETWORK connection as shown in the figure below.

The RS232 Connection requires a CC05 cable to communicate with the remote terminal. NOTE: The two options described above can be installed on site by authorised and trained personnel.

9.3 Remote Monitoring

1- ”POWERSHIELD3”:

Both “NETMAN 204” and all the serial link communication ports allow the interfacing with the proprietary remote monitoring software,”POWERSHIELD

3” supplied together with the STS on a CD ROM.

”POWERSHIELD

3” makes it possible to view, from a remote location, the status of the STS by means of a graphical

representation of the status of the various switches and of the power supply to the applications through S1 and S2. The same screen graphics include the voltage/frequency readings of the two sources, their phase shift, output current and internal temperature of the static switch. This tool also makes it possible to display and save the specific file with the events log.

For further information see the MASTER SWITCH operating manual.

MASTER SWITCH

SPTMTSR3Y16NREN 17

2- “DEVICE CALIBRATOR”:

The RS232 standard serial port (or the one available on the optional “RS232 DUPLEXER”) makes it possible for specialised technical service staff, if authorised, to connect up locally via PC to activate the STS control and monitoring module program (“Device calibrator”) This tool also makes it possible:

To conduct the same configuration activities by means of the configuration menus described at paragraph

7.2.

To send the commands to transfer the load from one source to another, to silence the alarm buzzer and to interrupt the power supply.

MASTER SWITCH

SPTMTSR3Y16NREN 18

10. TECHNICAL DATA SHEET 100-400 A

Mechanical characteristics STS Range (current per phase) [A]

100 150 200 250 300 400

Dimensions [mm]

Net Width / (gross)

Net Depth / (gross)

Net Height / (gross)

685 / (850) 530 / (700)

1500 / (1640)

685 / (850) 580 / (700)

1770 / (1900)

Net Weight / (Gross Weight) [kg]

3 – Pole 145 / (165)

165 / (200)

195 / (230)

205 / (240)

230 / (265)

240 / (275)

4 – Pole 175 / (200)

190 / (215)

205 / (240)

235 / (270)

240 / (275)

255 / (290)

Cables Inlet Underneath (front) / top entry (Optional)

Color Graphite gray - RAL 7024

Mechanical Arrangement Closed

IP Protection Level IP20

Electrical Specification STS Range (current per phase) [A]

100 150 200 250 300 400

Sources nominal voltage S1/S2 (Ph-Ph) [V]

380-400-415 Three phase + Neutral (Vac) If sources are without neutral connection please contact the factory prior to

the sell, for a dedicated solution

Input voltage tolerance 180-264 Vac (Ph-N)

Maximum input voltage distortion 15%

Nominal frequency 50 or 60 Hz

Input frequency tolerance (operation range)

45-65 Hz (upper and lower limits adjustable)

Default frequency limits 48-52 Hz (50 Hz) / 56-64 Hz (60 Hz)

Input switched phases 3+N (four pole) / 3 (three pole)

Distribution network compatibility IT, TT, TNS, TNC

Transfer type “Break Before Make” (NO sources overlapping)

Transfer methods available Automatic / Manual / Remote

Transfer control Synchronised / No-synchronised with adjustable delay /

No-synchronised with “Zero current mode”

Synchronised automatic transfer Zero current mode

Non-Synchronised automatic transfer Enable with Delay (adjustable delay 20-255 msec.) /

Enable with “Zero current mode” / Disable

Re-transfer methods Zero current mode / Delay (adjustable delay 20-255msec.)

Wait synchro / Swift

Transfer time due to source failure Less than 4 msec (S1/S2 synchronised) /

10 msec depending on the delay setting (S1/S2 non-synchronised)

Transfer time due to manual command ≤2 msec.

Retransfer to Priority Source (PS) Enable with Delay (adjustable delay 16-127 sec.) / Disable

Maximum phase angle error S1/S2 20° (Adjustable 0-255°)

Admissible Overload

0-100% Continuous

101-150% 1 minute

151-200 10 seconds

>200% 250 msec

Overload control If Enable: after the timing (above indicated) STS switches OFF

If Disable: SW1/SW2 (inside STS) trip according with current value

MASTER SWITCH

SPTMTSR3Y16NREN 19


100 150 200 250 300 400

Transfer Inhibit Load >200%

Overload (% In)

If Overload Control DISABLED

% 60 minutes

% 10 minutes

% 1 minute

% 100 ms

120% 140% 180%

1000%

120% 150% 200%

1000%

120% 170% 250%

1200%

120% 140% 220%

1000%

120% 160% 210%

1000%

120% 160% 220%

1000%

Breaking current SW1/SW2 (inside STS) [kA]

16 36 36 36 36 36

Neutral overlapping time during transfer

10 msec. max

Output Current Crest Factor (peak/RMS)

3.0

Safety Standard EN 62310-1

EMC compatibility standard EN 62310-2

LCD display Languages available Italian / English

STS Monitoring and control Local / Remote

Environmental data STS Range (current per phase) [A]

100 150 200 250 300 400

Efficiency (%)

Full load

50% load

99.5 99.0

Noise level @ 1 meter from front (from no load to full load) –[dBA]

<52 <55

Storage temperature - 10° up to +50°C

Working temperature 0 ± 40ºC

System ventilation Forced (fan redundancy plus)

Ventilation air flow From bottom to the top

Max. relative humidity during operation

90% (non condensing)

Max. installation altitude 1000 m at nominal power / (- 1% power for every 100m above 1000m)

Max 4000m

Power dissipated at nominal resistive load *

0.40 kW 350 kcal/h

1390 B.T.U./h

0.53 kW 460 kcal/h

1810 B.T.U./h

0.82 kW 710 kcal/h

2800 B.T.U./h

1.05 kW 900 kcal/h

3590 B.T.U./h

1.40 kW 946 kcal/h

4780 B.T.U./h

2.20 kW 1890 kcal/h 7510

B.T.U./h

Fan capacity in installation room for dissipating heat **

240 mc/h

310 mc/h

480 mc/h

610 mc/h

810 mc/h

1280 mc/h

Max current leaked to earth *** ≤ 50 mA

* 3.97 B.T.U. = 1 kcal ** To calculate air capacity the following formula can be used:

Q [mc/h] = 3,1 x Pdiss [kcal] / (ta - te) [°C]

P diss is the power dissipated by the STS (expressed in kcal) within the installation environment.

ta= room temperature, te= external temperature. 10% must be added to the derived figure to take into account

system losses. In the above table an example is shown of capacity with (ta - te)=5° C and a resistive nominal load

(pf=0.9). PS: This formula can be applicable if ta>te; otherwise, the installation will require air conditioning.

*** The leakage current of the load must be added to that of the STS on the ground protection conductor.

MASTER SWITCH

SPTMTSR3Y16NREN 20

11. TECHNICAL DATA SHEET 600-800 A

Mechanical characteristics STS Range (current per phase) [A]

600 800

Dimensions [mm]

Net Width / (gross)

Net Depth / (gross)

Net Height / (gross)

950 / (1080) 730 / (840)

1900 / (2040)

1250 / (1450) 850 / (1000)

1905 / (2100)

Net Weight / (Gross Weight) [kg]

3 – Pole 365 / (380) 515 / (570)

4 - Pole 375 / (415) 560 / (615)

Cables Inlet Underneath (front) / top entry (Optional)

Color Graphite gray - RAL 7024

Mechanical Arrangement Closed

IP Protection Level IP20


600 800

Sources nominal voltage (S1/S2) (Ph-Ph) [V]

380-400-415 Three phase + Neutral (Vac) If sources are without neutral connection please contact the factory prior to

the sell, for a dedicated solution

Input voltage tolerance 180-264 Vac (Ph-N)

Maximum input voltage distortion 15%

Nominal frequency 50 or 60 Hz

Input frequency tolerance (operation range)

45-65 Hz (upper and lower limits adjustable)

Default frequency limits 48-52 Hz (50 Hz) / 56-64 Hz (60 Hz)

Input switched phases 3+N (four pole) / 3 (three pole)

Distribution network compatibility IT, TT, TNS, TNC

Transfer type “Break Before Make” (NO sources overlapping)

Transfer methods available Automatic / Manual / Remote

Transfer control Synchronised / No-synchronised with adjustable delay / No-synchronised with “Zero current mode”

Synchronised automatic transfer Zero current mode

Non-Synchronised automatic transfer Enable with Delay (adjustable delay 20-255 msec.) /

Enable with “Zero current mode” / Disable

Re-transfer methods Zero current mode / Delay (adjustable delay 20-255 msec.)

Wait synchro / Swift

Transfer time due to source failure Less than 4 msec (S1/S2 synchronised) /

10 msec depending on the delay setting (S1/S2 non-synchronised)

Transfer time due to manual command ≤ 2 msec.

Retransfer to Priority Source (PS) Enable with Delay (adjustable delay 16-127 sec.) / Disable

Maximum phase angle error S1/S2 20° (Adjustable 0-255°)

Admissible Overload

0-100% Continuous

101-150% 1 minute

151-200 10 seconds

>200% 250 msec

Overload control If Enable: after the timing (above indicated) STS switches OFF

If Disable: SW1/SW2 (inside STS) trip according with current value

Transfer Inhibit Load > 200%

MASTER SWITCH

SPTMTSR3Y16NREN 21


600 800

Overload (% In) If Overload Control DISABLED

% 60 minutes

% 10 minutes

% 1 minute

% 100 ms

120% 160% 220%

1000%

Breaking current SW1/SW2 (inside STS) [kA]

36 kA 50 kA

Neutral overlapping time during transfer

10 msec. max

Output Current Crest Factor (peak/RMS)

3.0

Safety Standard EN 62310-1

EMC compatibility standard EN 62310-2

LCD display Languages available Italian / English

STS Monitoring and control Local / Remote

Environmental data STS Range (current per phase) [A]

600 800

Efficiency (%)

Full load

50% load

99.2% 99.1%

99.2% 99.0%

Noise level @ 1 meter from front (from no load to full load) –[dBA]

<60 <62

Storage temperature - 10° up to +50 °C

Working temperature 0 ± 40 ºC

System ventilation Forced (fan redundancy plus)

Ventilation air flow From bottom to the top

Max. relative humidity during operation

90% (non condensing)

Max. installation altitude 1000 m at nominal power (- 1% power for every 100 m above 1000 m)

Max 4000 m

Power dissipated at nominal resistive load *

2.45 kW 2110 kcal/h

8380 B.T.U./h

4.15 kW 3570 kcal/h

14170 B.T.U./h

Fan capacity in installation room for dissipating heat **

1430 mc/h 1750 mc/h

Max current leaked to earth *** ≤ 50 mA

* 3.97 B.T.U. = 1 kcal ** To calculate air capacity the following formula can be used:

Q [mc/h] = 3,1 x Pdiss [kcal] / (ta - te) [°C]

P diss is the power dissipated by the STS (expressed in kcal) within the installation environment.

ta= room temperature, te= external temperature. 10% must be added to the derived figure to take into account

system losses. In the above table an example is shown of capacity with (ta - te)=5° C and a resistive nominal load

(pf=0.9). PS: This formula can be applicable if ta>te; otherwise, the installation will require air conditioning.

*** The leakage current of the load must be added to that of the STS on the ground protection conductor.

MASTER SWITCH

SPTMTSR3Y16NREN 22

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Technical Specification Master Switch - PM ENERGI · 2018. 1. 30. · IEC 60146: Semiconductor...

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Transcript of Technical Specification Master Switch - PM ENERGI · 2018. 1. 30. · IEC 60146: Semiconductor...