Digital Protection Relays

Digital Protective Relays

L&T

Mysore Works

The L&T Switchgear Training Centres at Pune, Lucknow & Coonoor are the only facilities of their kind in India. The Centres have state-of-the-art training facilities, well-equipped workshop & testing systems.

Training programmes on Protective Relaying and related subjects are being regularly conducted at above training centres.

Kindly contact the nearest Training Centre for further details.

Larsen & Toubro Limited offers a wide range of Microprocessor based State-of-the-art Digital Protective Relays suitable for LV, MV and HV power distribution systems. These Relays are manufactured at L&T’s Mysore works equipped with modern infrastructure and employing latest manufacturing and testing equipments. L&T’s range also include Relays for special applications manufactured by Microelettrica Scientifica, Italy. The applications include Feeder Management, Load Sharing, Load Shedding, Synchronising, Grid Islanding etc.

L&T also manufactures a range of Electronic Single Phase Energy Meters, Three Phase Energy Meters andTrivector Meters at the Mysore Works..

Lucknow

Plot No. C/6-7Sarojini Nagar Industrial AreaLucknow 226 008Tel. : 0522-437591, 437728Fax : 0522-437592e-mail : [email protected]

T-156/157, MIDC, Bhosari, Pune 411 026Tel. : 020-7120037, 7120653Fax : 020-7122993, 7121221e-mail : [email protected]

Pune

Ooty-Coonoor Main RoadNeedle Industries P.O. Ketti,Niligiris 643 243 (T.N.)Tel. : 0423-517158Fax : 0423-517107e-mail: [email protected]

Coonoor

Training Centres

Pages

3

22-23

24-25

26-27

20-21

18-19

16-17

14-15

12-13

10-11

6-7

4-5Over Current relays - MC31A, MC61A, MC61C

Current Sensing relays - MC12A, ME12A, SC14S

Neutral Displacement relay - MND11Reverse Power Relay - MRP11Voltage relay - MV12

Secondary relays - TCS01, PTF03

Power Factor Control relay - PFC8, PFC14, PFR8

Motor Protection relay - MM30, MM30W, MPR300

Generator Protection relays - IM3GV, MG30, MD32G

Synchronising relays - SPM21, SCM21. Load Sharing Relay - RRS

Voltage Vector shift / Voltage / Frequency relays - UFD34, UM30ADirectional Over Current relay - DM33

Transformer Protection relays - MD32T, IM30T, UM30SV

Auto Reclosing Relay - IM30DREControl & Supervision relays - MW33, MU30.

Time - Current Characteristics

Capacitor protection relay - IM 30CFeeder protection - MC20R, MC30, RPM8

8-9

Contents

1

Corelation between ANSI/IEEE device Function number and Relays

Function Name

Device No.

L&T Relays

MS Relays

Under impedance relay / Distance relay Synchronising and or Synchro-check relay

Over or under temperature protection and control relayAC under voltage relay

Power directional relayUnder current or underpower relay

Bearings over temperature relayField control (loss of field) relayDC over voltage relayReverse phase or phase balance current relay

Phase-sequence or single-phasing voltage relayMachine or transformer thermal relay

Instantaneous over current (or rate-of-rise) relay

Voltage restrained over current relayBreaker - failure over current relay Instanteneous earth fault over current relay

AC time over current relay

Ground fault time over current relay

Rectifier failure relay (rotating diodes)AC over voltage relay

Overexcitation relay V/Hz

Voltage balance relayGround detector (insulation to ground failure of machine or other apparatus)Machine stator ground fault detector relayMachine rotor ground fault detector relayAC directional over current relayDirectional ground fault over current relayAlarm relayDC over current relayPhase angle measuring or out of-step protection relay

Reclosing relayDC Under voltage relayFrequency relay

Lock-out relayDifferential protective relay

Ground fault differential protective relayRegulating device to adjust a quantityDC directional voltage relayDC directional voltage and current relayAutomatic active or reactive load sharing relay Vector Surge Protection Relay

MV12

MRP11

ME12MC12AMC61CMC61A

MC12AMC61AMC61CMC12AMC61AMC31AMC61CMC12AMC61AMC31AMC61C--MV12------

------------------------------SC14S------–

--SPM21SCM21--UM30 / UM30SVUFD34MG30MM30MW33--MG30–IM30TMM30UM30IM30TIM3GVMM30--------IM3GV------------------------

UM30 / UM30SVUFD34 / UM30SVUM30 / UM30SVUM30A / UM30SVUM30MG30MG30UBO / CRDM33DM33------IM30GIM30DR--UM30 / UM30SVUFD34--MD32GMD32T--------RRSUM30-SV

2125 2627 3237 38404546-(61) 4749

50

50/2750BF 50N

51

51N-(51G)

5859 59/81 606464S64R6767N-(67G)747678 798081 8687

87N-(87G)90919295

2

3

Time - Current Characteristics (At TMS = 1)

A : Normal Inverse 3.0 Sec. B : Normal Inverse 1.3 Sec. C : Very InverseD : Extreme Inverse

For Trip time at TMS other than 1Trip time = (Trip time at TMS = 1) x TMS OR 50msec whichever is more

Product Design Standards

Reference standardsIEC 60255, IEC 61000, IS3231, IS8686

Dielectric test : IS 3231 / IEC 60255-5 Impulse test: : IS 8686 / IEC 60255- 5 HF disturbance test: : IS 8686 / IEC 60255-22-1 Electrostatic discharge test : IEC 61000-4-2Electrical fast transient : IEC 61000-4-4Radiated electro magnetic field test : IEC 61000-4-3Surge immunity : IEC 61000-4-5Ring wave test: : IEC 61000-4-12Voltage dips & interruption test : IEC 61000-4-11Power frequency magnetic test : IEC 61000-4-8

Multiple of set current (Is)

Tri

p T

ime

(S

ec

.)

A

B

C

D

1,000

100

10

1

01

1 10 20

MC31A

MC61A

Over Current Relays

MC61C

MC61A

MC31A

Wiring Diagrams

R Y B R Y B1

2

4

13

5

6

15

16

7

8

3 3

1

2

4

13

5

6

15

16

7

8

22

25

26

21

L/+

N/-

In = 1A; 5A

0n = 1A; 5A

MICRO CONTROLLER

PROTECTION

F50(Is)

F51(0s)

R Y B E

PROGERROR

R1

R2

R3

R4

R5

N0

NC

9

10

11

12

17

18

27

28

29

30˜

R Y B R Y B1

2

4

13

5

6

15

16

7

8

3 3

1

2

4

13

5

6

15

16

7

8

22

25

26

21

In = 1A; 5A

0n = 1A; 5A

L/+

N/-

MICRO CONTROLLER

PROTECTION

F50(Is)

F51(Os)

F50(Ihs)

F51(Ohs)

R Y B E

R1

R2

R3

R4

R5

N0

NC

9

10

11

12

17

18

27

28

29

30

In = 1A ; 5A0n = 1A ; 5A

R Y B R Y B1

2

4

13

5

6

15

16

7

8

3 3

1

2

4

13

5

6

15

16

7

8

22

25

26

21

L/+

N/-

˜

MICRO CONTROLLER

MC61C

PROTECTION

F50(Is)

F51(Os)

F50(Ihs)

F51(Ohs)

R Y B E

PROGERROR

R1

R2

R3

R4

R5

9

10

11

12

17

18

27

28

29

30

19

20

31

32

NO

NC

BKR

OPEN

CLOSE

BKR

L/R

BI*

C

S-

S+

9 PIN MALE

D1

D2

D3

4

PROG.ERROR

• Display of currents, settings, Trip data & Trip history for analysis & trouble shooting

• Built in self supervision & self testing feature to ensure continuous reliability

• Separate Indication for power ON & Programming mode or relay fault

• Separate fault indication

• In MC61C - Communication with Computer & breaker control through RS 485 Port

• Four user programmable output relays

Over Current RelaysThree Phase Over Current & Earth fault Relays

15

8m

m

204mm

224mm

121mm

Description

Device CodeDesignFunctions Available

Settings

Other Features

Burden on CTBurden on PTOperating tempWeightBurden on Auxiliary supplyOutput ContactConstructionDim W x H x D in mmPanel Cut Out

Auxiliary supply Type 1 Type 2CT rating

Output Contacts

3 Phase O/C + E/F

0C

51 RYBNNumerical RelayLowset O/C -IsLowset E/F -Os

O/C Is = 20-200% Step 5% E/F Os = 5-80% Step 5% Time Characteristics available -NI, VI, EI, or Definite TimeTMS 0.1 - 1.6 Step 0.05

Site selectable Trip time Char.

Display of Currents, Trip count Self supervision feature

£ 0.25 VA on CT/PhaseNot applicable

00 to 60 C < 2kg£ 10 VA1 N/O Contact for self suprvnDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC1 AMP or 5 AMP (site selectable)4NO or 2NO + 2NC

3 Phase O/C + E/F + Highset

0 0C

50/51 RYBNNumerical RelayLowset O/C -IsHighset O/C -IhsLowset E/F -OsHighset E/F -OhsO/C Is = 20-200% Step 5% E/F Os = 5-80% Step 5% HS O/C = (0.2 to 40) x In step of -0.2 In or disableHS E/F = (0.1 to 20) x On step of -0.1 On or disableTime Characteristics available -NI, VI, EI, or Definite Time TMS : 0.1 - 1.6 Step 0.05

Site selectable Trip time Char.

Highset can be disabledDisplay of Currents, Trip count Self supervision feature

£ 0.25 VA on CT/PhaseNot applicable0 to 60 C < 2kg£ 10 VA1 N/O Contact for self suprvnDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC1 AMP or 5 AMP (site selectable)4NO or 2NO + 2NC

3 Phase O/C + E/F + Highset Communication and breaker control

0 0C

50/51 RYBNNumerical RelayLowset O/C -IsHighset O/C -IhsLowset E/F -OsHighset E/F -OhsO/C Is = 20-200% Step 5% E/F Os = 5-80% Step 5% HS O/C = (0.2 to 40) x In step of -0.2 In or disableHS E/F = (0.1 to 20) x On step of -0.1 On or disableTime Characteristics available -NI, VI, EI, or Definite TimeTMS : 0.1 - 1.6 Step 0.05

HS delay:0.1-2 Sec step 0.01 -Sec. or Inst.RS 485 CommunicationBreaker controlAuto doubling of highset, -(Relay co-ordination)£ 0.25 VA on CT/PhaseNot applicable0 to 60 C < 2kg£ 10 VA1 N/O Contact for self suprvnDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC1 AMP or 5 AMP(not site selectable)4 NO

ORDERING INFORMATION

MC61A MC61C

5

Model MC31A

MC12A / ME12A

SC14S

6

1

2 +VE/PH.

-VE/NR1

COM

COM

SETTING RANGE (Is)

Aux. Supply

µP. ControlCkt.

F50/50NF51/51N

3

10

11

12

1AIn MC12A

(10-40)% In(20-80)% In(50-200)% In

ME12(1-16)% In

5A

AUX SUPPLY24 - 110V AC/DC95 - 240V AC/DC

MC12A / Me12

Over Current RelaysWiring Diagrams

11

10

9

7+

8

12

SC14S

Test (24V)Voltage

DC-DC

Convrt.

Test

ControlCkt.

R

2

1

3

5

6

4

In1A5A

CT OPERATED RELAYNO AUXILIARY SUPPLY REQUIRED

SETTING RANGE (Is)(10-40)% IN(20-80)% IN

˜

• Easy setting through front panel DIP Switches

• Indication for Power ON and trip status

• Test feature - helps maintenance • Compact, light weight helps in reducing panel size & thickness.

7

Single Phase Over current / Earth fault RelaySensitive E/F Relay / Instantaneous Current Relay

Current Sensing Relays

Description


Settings

Other Features

Burden on CTBurden on PTOperating tempWeightBurden on Auxiliary supplyOutput ContactsConstructionDim W x H x D in mmPanel Cutout

Auxiliary supply Type 1 Type 2CT rating

Range Setting

1 Ph O/C or E/F

0 0C

50/51 or 50N/51NMicrocontroller BasedLowset O/C -IsHighset O/C -IhsLowset E/F -OsHighset E/F -Is

O/C Is = 50-200% Step 10% ORE/F Is = 10-40% Step 2% ORE/F Is = 20-80% Step 4%HS O/C = (2-16) xls step 2 IsHS E/F = (2-16) xls step 2 IsTime Characteristics available-Nl, VI, EI, or Definite Time3 ranges of def Time (1, 10,100)TMS : 0.1 - 1.6 Step 0.1Site selectable Trip time Char.

Highset can be disabled

£ 0.25 VA on CT Not applicable 0 - 60 C< 1.5kg£ 5.5 VA2 C/O Contacts (S/R)Draw out71 x 158 x 22462 x 142

20-110V AC / DC or88-264V AC / DC1 AMP or 5 AMP

10-40% OR 20-80% OR 50-200%Site Selectable

Instantaneous current relay

0 0C

87N/64RStatic

Is = 10-40% step 5%OR 20-80% step 10%

Time Characteristics available-Instantaneous (25ms) OR time delayed 100ms / 200msSelf PoweredRelay testing possible by ext.24V -SupplyFlag indication / LED indication

£ 6VANot Applicable 0 to 60 C< 1.5kgNot Applicable2 C/O Contacts (S/R)Draw out71 x 158 x 22462 x 142

Not Applicable

1 AMP or 5 AMP

10-40% OR 20-80%

1 Ph Sensitive E/F

Time Characteristics available- NI, VI, EI or Definite Time 3 ranges of def Time (1, 10, 100)TMS : 0.1 - 1.6 Step 0.1Site selectable Trip time Char.

Highset can be disabledHarmonic rejection£ 0.25 VA on CTNot applicable

0 00 C to 60 C< 1.5kg£ 5.5 VA2 C/O Contacts (S/R)Draw out 71 x 158 x 22462 x 142

20-110V AC / DC or88-264V AC / DC1 AMP or 5 AMP

50N/51NMicrocontroller BasedLowset S E/F -IsHighset S E/F -Ihs.

S E/F = 1-16% step 1%HS S E/F = (2-16) xlsin steps of 2 ls


71mm

15

8m

m

224m

m

204m

m

Model MC12A ME12A SC14S

MV12

MRP11

MND11

8

µP.Control

Ckt.F64

R Y

14

5

7

8

6

11

µP.

Control

Ckt.

F32

R1

Vn110 V AC 1 A415 V AC 5 A

In AUX SUPPLY24–110 V AC/DC95–240 V AC/DC

MRP11

12

2 + VE / PH.

– VE / N

Aux. Supply3

9

10

B

Wiring Diagrams

5

4

6

8

9

7

R1µP.Control

Ckt.F27F59

1

2

3

11

12

MV12

+VE/PH.

Aux. Supply

-VE/N

R Y B

1

2

3

4

11

12

L /+

Aux. Supply

N /-

MND11

R1

R2

PT VOLTAGE : 110V AC

6

7

5

9

10

4

MND11, MRP11, MV12

Neutral Displacement Relay Reverse Power RelayUnder Voltage OR Over Voltage Relay


• LED indication for Power ON and trip status

• Test feature - helps maintenance • Compact, light weight helps in reducing panel size & thickness.

9

Description


Settings

Other Features

Burden on PTBurden on CTOperating tempWeight Burden on Auxiliary supplyOutput ContactsConstructionDim W x H x D in mmPanel Cutout

Auxiliary supply Type 1 Type 2CT RatingPT Rating

Neutral Displacement

59 Vo

0 0C

Microcontroller BasedVoltage relay for E/F Protectionof generator earthed thro’neutral earthing transformer

Fault voltage Vs -2% - 32% of Vn step 2%Alarm voltage Vis -2% - 32% of Vn step 2%Time Characteristics available- Inverse time or Definite time TMS : 0.1 - 1.6 Step 0.1

LED indication for power ON, time characteristics, tripTest featureThird harmonics rejection 26db £ 0.25 VA Not Applicable0 to 60 C< 1.5 kg£ 5.5 VA1 N/O +1C/O Contacts (S/R)Draw out71 x 158 x 22462 x 142

20-110V AC / DC88-264V AC / DCNot Applicable110V AC

Microcontroller BasedLowset U/V - VsHighset U/V - Vhs OR Lowset O/V - VsHighset O/V - VhsU/V Vs = 95-20% step 5%U/V Vhs = 90-20% step 10%O/V Vs = 105-180% step 5%O/V Vhs = 110-180% step 10%Time Characteristics available- Inverse time or Definite time TMS : 0.1 - 1.6 Step 0.1

Site selectable U/V OR O/VSite selectable Trip time Char.Highset can be disabled

£ 0.075 VA on PTNot Applicable0 to 60 C< 1.5 kg£ 5.5 VA2 C/O Contacts (S/R)Draw out71 x 158 x 22462 x 142

20-110V AC / DC88-264V AC / DCNot Applicable110V/240V/415V (site selectable)

1 Ph U/V OR O/V

27 OR 59

0 0C

Microcontroller BasedReverse Power Level

PT input Vn 110V, 240V, 415V ACCT input In 1 A / 5 APick up level 1% - 15%Min. setting 0.5%TMS 0 to 1.5 step 0.1Definite time characteristics

LED indicationTest feature

< 0.25VA < 0.25VA0 to 60 C< 1.5 kg< 8VA1 N/O+1 C/ODraw out71 x 158 x 22462 x 142

20-110V AC / DC88-264V AC / DC1AMP OR 5 AMPUpto 380V AC

Reverse Power

32

0 0C


71mm

15

8m

m

224m

m

204m

mModel MND11 MRP11 MV12

Secondary Relays

TCS 01

PTF 03

10

Wiring Diagrams

L /+

TRIPRELAY

CONTACT

TRIP COILSUPPLY

(20 - 264VAC / DC

BKR.AUX.

CONT.

TC

N/ -

1

2

3

4

13

15

12

11

14

L /+

N/ -

Aux. Supply

TCSCKT.

R1

TCS 01

Aux. Supply 20-110V AC/DC88-264V AC/DC

6

5

7

9

10

8

FROM PTSEC. 110VAC PH. -PH.

R

Y

B

N

FUSE

FUSE

FUSE

LOAD

LOAD

LOAD

1

2

11

12

13

14

15

16

17

PTFCKT.

R1

PTF 03

6

5

7

9

10

8

Secondary Relays

11


• Indication for Power ON and trip status

• Test feature - helps maintenance • Compact, light weight - in reducing panel size & thickness.

• Low power Burden

Trip Circuit Supervision RelayPT Fuse Failure Relay

Trip Circuit supervision

95 ABCStatic

Post Close SupervisionPre Close Supervision

Not ApplicableTrip coil supply 110 - 220V ACOR 24 - 48 - 110 - 220V DCOperation time 500+/-100mSReset time < 150 mS

Same Relay for all RatingTrip supply U/V indicationCB ON/OFF status indication

Not applicable Not applicable

0 00 C to 55 C1.5 kg<

£10 VA 2 C/O Contacts (S/R)Draw out71 x 158 x 22462 x 142

20-110V AC / DC or80-264V AC / DC

PT Fuse Failure Relay

0

60Static

3 Phase PT fuse failure

110V AC PT Not Applicable

Operation time £ 7mS

LED Indication for each phaseRelay trip statusSelf poweredHigh speed operation

Not Applicable<0.5 VA per phase on PT

00 C to 55 C< 1.5 kgNot Applicable2 C/O Contacts (S/R)Draw out71 x 158 x 22462 x 142

Description

Device CodeDesign

Functions Available

RatingSettings

Other Features

Burden on CTBurden on PTOperating tempWeight Burden on AuxiliaryOutput ContactsConstructionDim W x H x D in mmPanel Cutout

Auxiliary supply Type 1 Type 2


71mm

15

8m

m

224m

m

204m

mModel TCS 01 PTF 03

PFC-14, PFC-8, PFR-8

PFC-8

12

PFR-8

PFC-14

Wiring Diagrams

PFC-8

1

2

3

4

5

6

7

8

9

10

11

12

R1

R2

R4

R3

R5

R6

R7

R8

NC

NC

NC

C

13

14

15

16

17

18

19

20

21

22

23

24

AL

AR

M

S2S1(1A)S1(5A)

415V

E

++

R

Y

B

N

TOLOAD

NC=NO CONTACT

BANK #8

BANK #1

230VAC50Hz

1

2

3

4

5

6

7

8

9

10

11

12

R1

R2

R3

R4

R6

R7

R8

R9

R10

R11

C

R5

S2S1(1A)S1(5A)

415V

E

R

Y

B

N

13

14

15

16

17

18

19

20

21

22

23

24

R12

R13

R14

AL

AR

M

++

230VAC50Hz

BANK #1

BANK #14

TOLOAD

PFC-14

PFR-8

R1

R

Y

B

N

R2

230VAC

50Hz13

14

15

16

17

18

19

20

21

22

23

24

S1(1A)S1(5A)

R3

R4

R5

R6

R7

1

2

3

4

5

6

7

8

9

10

11

12

R8

S2 BANK #1

BANK #8

TO LOAD

AL

AR

M

415V

EC

NC

NC

NC

Power Factor Controller Relay (8 & 14 Stages) Intelligent Power Factor Controller Relay

• On line display of system PF

• Easy setting of power factor C/K ratio from front panel

• LED indication for Alarm code, No. of Banks selected, PF status- lead / lag / unity, Auto / Manual mode

• DIP switches selection for No. of banks / time delay / bank ratios

• Display of system current KVAR valves.

13

Power Factor Control Monitoring Relays

144mm

14

4m

m

110m

m

Description


Settings

Other Features

Burden on CTBurden on PTOperating tempWeightOutput Contacts

Dim W x H x D in mmPanel Cutout

Auxiliary supply

Microcontroller BasedAutomatic PF controllerCan control upto- 8 Capacitor BanksPF : 0.8 Lag - 0.95 LeadSwitching time 10-20-40-60 SThreshold reactive currentSetting 0.5 - 1 A reactiveCapacitor Bank Selection-4-5-6-7-8 Banks Display of PF MeasurementAuto / Manual SelectionDisconnection of Capacitorsduring over voltage & Power failureAlarm contact for under / overcompensation, over voltage, under load1 A / 5 A field selectable0.3 VA£ 10 VA

00 to 60 C< 2kg8 N/O

144 x 144 x 100138 x 138

415V AC

Power Factor Controller

0C


Microcontroller BasedAutomatic PF controllerCan control upto-14 Capacitor BanksPF : 0.8 Lag - 0.95 LeadSwitching time 10-20-40-60 sThreshold reactive currentsetting 0.5 - 1 A ReactiveCapacitor Bank Selection-4-5-6-7-8-10-12-14 BanksDisplay of PF MeasurementAuto / Manual SelectionDisconnection of Capacitorsduring over voltage & Power failureAlarm contact for under/over compensation,over voltage,under load1 A / 5 A field selectable0.3 VA10 VA0 to 60 C< 2kg14 N/O

144 x 144 x 110138 x 138

415V AC


0 0C

Intelligent

Microcontroller BasedAutomatic PF controller8 stages

Switching time 5-1200 sec.Auto C/K settingCan accept unequal banksFault indication

Display of PF. V. I. KVARLED indications for faultsPF status-lead / lag. Lead -PF alarm

1 A / 5 A field selectable0.5 VA

10 VA0 to 60 C<2kg8 N/O

144 x 144 x 110138 x 138

110V AC


£ 0 0C

Model PFC-8 PFC-14 PFC-14

Motor Protection Relay

MM30

MM30-W

14

L/+

N/-

A B C

26

25

26

25A AB BC C

27

28

29

39

30

324333

In = 1 A

41

27

28

29

39

30

32

4333

41

27

28

29

39

30

3243

33

41

In = 5 A

Ion = 1 A Ion = 5 A Un = 100V

CEMS - SCE 1630 - R0

13

12

2 50BT

2 50BT

DISPLAY

FUNZIONIFUNCTION

F 37F 46F 49F 51F 51R

R4

PROGR. R5INT. FAULT

9 PIN MALE

cs-s+KEYBOARD

TASTIERA

R2

R1

F 67N/64ST. NO.>Al. O>ltr

R1

R2

R3

R4

R5

RTD

R.T.

S.C.

21 (10)

N.O.

N.C.

(21)

N.O.

N.C.

22

79

81820

1946

5

1517

16

14

3

37(b)

TO REXRELAY

EXPANSION

38(a)2324

2

1

10

11MICROP

MM30-W

MPR300

R Y B

StartN/O

Stop (N/C)

Aux. Supply

Typical connection diagramfor 'Direct Starting' application

MPR300

M

NC NO

1 2 3 4 5 6 7 8

Aux. N/O

N

Wiring Diagrams

A B C A B C25

26

27

28

29

41

30

32

39

25

26

27

28

39

29

413032

43

31

42

33

43

31

42

33

44

In=1A

In=5A

PRESA/TAP 31:Ion=5A

PRESA/TAP 33:Ion=1A 12

13 ˜˜

˜

˜̃̃

=

DISPLAY

MICROP.

MM30

FUNCTION

F37F46F49F51F51RF64St.No.>AI.0>Itr

PROGR.

INT. FAULT

KEYBOARD

R1

R2

R3

R4

R5

R1

R2

R3

R4

R5

9 PIN MALE

(21) (10)

N.O. N.O.

N.C. N.C.

2110

1122

79

8

1820

1946

5

1517

16

14

3

2

1

34/382324

CS-S+

IEC 255

1/5A

1/5A

1/5A

• Motor Protection Relay• Motor Protection Relay with Voltage input• Lowcost Motor Protection Relay

Motor Protection Relay

• Display of various parameters, trip count and trip data on 8 digit alphanumeric display

• Separate LEDs for individual fault indication


• Built in self supervision & self testing feature helps maintenance

• Easy operation by 5 push buttons

• RS 485 Port for serial communication with “MSCOM” user friendly software

15

Motor Protection

0 0C

49, 51LR, 64, 46, 37

NumericThermal overloadLocked RotorEarth faultSingle phasingNo load running

up to 88 ATrip time characteristics -as per IEC947

No RS 485 port(Non-Communication-Relay)Not Applicable0 to 60 C< 0.5kg.< 8VABack panel monitor70 x 85 x 106Not applicableMotor rated current

240V AC

Description

Device Code

DesignFunctions Available

Other Features

Burden on CT

Burden on PTOperating tempWeightBurden on AuxiliaryOutput ContactsConstructionDim W x H x D in mmPanel Cutout

Auxiliary supply

Motor Protection

0 0C

49, 51LR, 46, 37, 50/51, 64, StNo, Itr

NumericThermal O/L and Pre-alarmLocked RotorCurrent unbalance, phase reversal, phase lossOver CurrentEarth FaultRepeat and prolonged startsRestart InhibitionNo load runningBlocking Function

Auto setting1 A or 5 A site selectable (Default 5 AMP)Selectable motor time constant (1 - 60 min)Display of parametersBuilt in self supervisionRS485 port0.2 VA for 5 A, 0.01 VA for 1 A

Not Applicable 10 to 60 C< 2kg8.5 VA4 C/O + 1 C/O for self supervisionDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC

Motor Protection

0 0

12/14, 27/59, 37, 46, 47, 4849, 50/51, 51LR, 55, 64, 66, 68, 81NumericThermal O/L and Pre-alarmLocked RotorCurrent unbalance, phase reversal, phase lossOver CurrentEarth FaultRepeat and prolonged startsRestart InhibitionNo load runningBlocking FunctionUnder frequency / over frequencyUnder voltage / over voltageRunning hoursLow PFAuto setting1 A or 5 A site selectable (Default 5 AMP)Selectable motor time constant (1 - 60 min)Display of parametersBuilt in self supervisionRS 485 port0.2 VA for 5 A, 0.01 VA for 1 A

Not Applicable 10 C to 60 C< 2kg8.5 VA4 C/O + 1 C/O for self supervisionDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC


15

mm

8

204mm

224mm

121mm

Model MM30 MM-30W MPR300

Generator Protection Relays

MD32-G

16

MG30

IM3G-V

Wiring Diagrams

R = Stabilising resistorZ = Protection surge arrester (if required)

L/+

N/-

DISPLAY

MICROP.

MD32-G

FUNCTION

F187GF287GF87N

87G + 87N

A B C

I1A

I1B

I1C

G

25

26

27

28

39

29

30

41

31423243

33

13

12

I2A

I2B

I2C

Z

R KEYBOARD

PROGR.

INT. FAULT

=˜˜

˜_

˜̃̃50-60

R5

R4

R3

R2

R1

R3

R2

R1

R4

R5

B3

B2

B1

9 PIN MALE

242334/381

2

3

14

16

17155

6419

2018

8

972211

1021

(21)

N.O.

N.C.

(10)

N.O.

N.C.

CS-S+

1/5A

1/5A

1/5A

1/5A

1/5A

1/5A

1/5A

25

26

27

283929

3041

31423243

33

44

12

13

G

1/5A

1/5A

1/5A

1/5A

1/5A

1/5A

1/5A

DISPLAY

MICROP.

R1

R2

R3

R4

R5

14

3

2

2110

1122

79

81820

1946

51517

16

14

3

2

1

FUNZIONI

1>,Z<,Uo>

R1

R2

R3

R4

R5

12>,T>

Zc<,O>

U,f

W<, Ir>

IC, 60FL

B.I./B.F.

PROGR.

INT. FAULT

KEYB0ARDTASTIERA

FUNCTION

MG30

38(a)

37(b)

TO REXRELAY

EXPANSION2324

9 PIN MALE

S–S+

C

(21 – 22)

(10 – 11)

N.O.

N.O.

N.C.

N.C.

CE

MS-SCE 1629-R0 In=1A In=5A Un=100V

A B C

Un

Un

25

26

27

283929

4130

33

32

43

31

4244

12

13

1/5A

1/5A

1/5A

DISPLAY

MICROP.

IM3G-V

FUNZIONI

FUNCTION

F27/59

F32

F40

F46

F49

F50/51V

F81

R1

R2

R3

R4

R5PROGR.

INT. FAULT

KEYBOARDTASTIERA

R1

R2

R3

R4

R5

4

3

2

CS-S+

9 PIN MALE

242334/38

1

2

3

14

16

17155

6419

20188

972211

1021

(21)

N.O.

N.C.

(10)

N.O.

N.C.

In = 5A In = 1A Un = 100V

IEC 255

L/+

L/-

• Multifunction Generator Protection Relays• Percentage Biased Generator Differential Relay

Generator Protection Relays

• Display of various parameters, trip count & trip data on 8 digit alphanumeric display

• Separate LEDs for various fault indication


• Built in self supervision & self testing feature help maintainance


• RS 485 Port for serial communication with “MSCOM” User friendly software

17

Description

Device Code


Other Features

Burden on CTBurden on PTBurden on Auxiliary supplyOperating tempWeightOutput Contacts

ConstructionDim W x H x D in mmPanel Cutout


Generator Protection

0C

50/51V, 49,46,27,59,81,40,32, 37

NumericVoltage rest. O/C HighsetTrip time char. NI, Def timeThermal ImageLowset Negative sequenceHighset Negative sequenceUnder voltage, Over voltageUnder frequency, Over frequencyLoss of Field, Reverse PowerLow forward power,CB Failure protection

1 A or 5 A site selectableDisplay of ParametersBuilt in Self supervisionRS485 Port, Blocking Function

0.2 VA for 5 A, 0.01 VA for 1 A0.04 VA8.5 VA

010 to 60 C< 2kg4 C/O, S/R or H/R or Time del1 C/O for self supervisionDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC

Generator Protection

21, 24, 27/59, 32, 37, 40, 46, 49,

0 0C

50/27, 50V/51V, 51BF, 60FL, 64S, 68, 81NumericVoltage rest. O/C HighsetTrip time char. NI, Def timeThermal ImageLowset Negative sequenceHighset Negative sequenceUnder voltage, Over voltageUnder frequency, Over frequencyLoss of Field, Reverse PowerLow forward power,CB Failure protection100% E/F95% E/FPT fuse failureOver excitation1 A or 5 A site selectableDisplay of ParametersBuilt in Self supervisionRS485 Port, Blocking Function

0.2 VA for 5 A, 0.01 VA for 1 A0.04 VA8.5 VA10 to 60 C< 2kg4 C/O, S/R or H/R or Time del1 C/O for self supervisionDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC

Generator Differential

0 0C

87, 50/51, 50LBB, 64S/87N

NumericGenerator Differential Bias % with dual adjustable -slopeOver Current Stator E/F CB Failure protection

1 A or 5 A site selectableDisplay of ParametersWave form capture feature Built in Self supervision, -RS485 Port0.2 VA for 5 A, 0.01 VA for 1 ANot Applicable 8.5 VA-10 to 60 C< 2kg4 C/O, S/R or H/R or Time del1 C/O for self supervisionDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC


15

mm

8

204mm

224mm

121mm

Model IM3G-V MG30 MD32-G

18

Wiring Diagrams

UL

BU

UL

SCM21

BU 12

N/- 13

44

30

41

28

27

26

25

DISPLAY

MICROP.

SCM21

FUNCTION

F25SX

39

29

F27

F59

F81 >

F81 <

R1

R2

R3

R4

R5

R5

R4

R3

R2

R1

PROGR.

INT. FAULT

KEYBORD

9 PIN MALE

BF

SX2

SX1

CS-S+

2110

1122

79

8

1820

19

46

5

1517

1614

3

2

1

34/382324

C/B

SX

L/+

G

1 T

OPTO OPTO

VOIOCOS

Lood Shedding

SE

TT

ING

S

MEDIAAVERAGE

Operation

To other RRS Relays

INCREASE

DECREASE

OVER POWER

Freq. control

Open

OpenOpenOpen Open

OpenOpen

Open

Lood Shedding

YesYesYesYes

Open Yes

Close No

Freq. control

11

1

10

2 3 32

22 21

3

4

7

6

8

9

R1

R2

R3

15

12

13

1

2

17

18

14

(.) (.)

- -

+

+

+

+

-

-

-+

DISPLAY

MICROP.

SPM21

FUNCTION

F25SXR1

R2

R3

R4

R5

PROGR.INT. FAULT

9 PIN MALE

CS-S+

2110

1122

9

8

1820

19

46

1517

16

143

21

34/382324KEYBORD

R5

R4

R3

R2

R1

F+

F-

U+

U-

5

7

BX

BR

SX

B.I.BR

52 (N.O.)

U

52 C

SPM21

UG

UB

G1

52

UB

L/+

N/-

12

13

44

41

30

29

26

25

UG

U

F

F

Connection diagram of 1 bus with 1 line

SPM21

SCM21

RRS

IEC 255

IEC 255

Synchronising RelaysGenerator Synchronising / Synchrocheck RelaysLoadl sharing Relays

• Display of various parameters, event count & event data on 8 digit alphanumeric display






Description


RatingOther Features

Burden on PTOperating tempWeightBurden on AuxiliaryOutput ContactsConstructionDim W x H x D in mmPanel Cutout

Auxiliary Supply

Auto Synchronising Relay

25NumericAuto Synchronising withAdjustable Voltage,Adjustable Frequency,Adjustable Phase angleAdjustable Reclose time,Bus Live / Dead operation,Speed Regular Control,Voltage Regulator Control,Digital inputs to monitorCB position

110V - 125V PT inputDisplay of Parameters,Built in self supervision,RS485 Port0.04 VA10 to 60< 2kg8.5 VA5 C/ODraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC

0 0C C

Synchronising Check Relay

25NumericSynchro Check withAdjustable Voltage,Adjustable Frequency,Adjustable Phase angleAdjustable Reclose time, Check Synch/Dead line / Dead bus modes of operation,Over voltage protection, Under voltageprotection, Over Frequency Protection,Under frequency protection,Digital inputs to monitor CB position

110V - 125V PT inputDisplay of Parameters,Built in self supervision,RS485 Port0.04 VA10 to 60< 2kg8.5 VA5 C/ODraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC

0 0C C

Generator load sharing

95Solid starterActive / reactive powerOver powerLoad sharingFrequency control

110V PT input1 A / 5 A CT input

< 5VA10 C to 60 C<1.5kg8.5 VA3 N/ODraw out71 x 158 x 22462 x 142

20-110V AC / DC or 88-264V AC / DCUpto 380V AC1 A / 5 A

0 0


19

15

mm

8

204mm

224mm

121mm

Model SPM21 SCM21 RRS

UFD34 / UM30A / DM33

UFD34

UM30A

DM33

L/+

N/-

UFD34

Wiring Diagrams

A

B

C

25

26

27

283929

4130

12

13IEC 255

_

˜˜

˜=

KEYBOARD

PROGR.

INT. FAULTR5

R4

R3

R5

R4

R3

R2

R1

R2

R1DISPLAY

MICROP.

FUNCTION

F81 - 1

F81 - 2

F81 - 3

F81 - 4

Fdf / dt

F27 / 59

14

BI<

BI>

CS-S+

9 PIN MALE

242334/3812

31416

17155

6419

20188

972211

1021

(21)

N.O.

N.C.

(10)

N.O.

N.C.

A

B

C

EA

UC UA

UBEBEC

13

12

44

3041

293928

27

26

25

IEC 255

24(-20%) - 110(+20%)Vac 24(-20%) - 125(+20%)Vdc 80(-20%) - 220(+20%)Vac 90(-20%) - 250(+20%)Vdc

_

˜˜

˜ =

Uo ˜̃̃BT 2 50

DISPLAY

MICROP.

FUNCTION

F27 / 59

F27d / 59d

F59sF59U

F81

F59 / 81

PROGR.

INT. FAULT

KEYBOARD

R1

R2

R3

R4

R4

R3

R5

R5

R1

R2

2110

112279

81820

1946

51517

161432134/382324

(21)

N.O.

N.O.

N.C.

N.C.

(10)

14BI<BI>

CS-S+

9 PIN MALE

UM30A

L/+

N/-

A B C29

3041

3142

324333

283927

26

25

A B C29

30413142

324333

283927

26

25

In=1A

In=5A

AUXILIARYSUPPLY

12

13

MS - SCE 1621 - R1

=

_

˜˜˜

˜̃̃Uo50-60

Io ˜̃̃50-60

1/5A

1/5A

1/5A

1/5A DISPLAY

MICROP.

DM33FUNZION

FUNCTION

F50

F51

F67(1)

F67N(1)

F67N(2)

F27

F67(2)

PROGR.INT.FAULT

KEYBOARDTASTIERA

R5

R4

R3

R2

R1

R1

R2

R3

R4

R5

B4

B3

B2

CS-S+

382324

12

3

14

16

17155

6419

20188

972211

1021 (21)

N.O.

N.C.

(10)

N.O.

N.C.

RS485

20

3 Phase voltage / frequency and Load shedding Relay3 Phase voltage / frequency & zero sequence voltage Relay

Voltage / Frequency Relays Directional O/C, E/F Relay







DescriptionDevice CodeDesignFunctions Available


Burden on CTBurden on PTOperating tempWeightBurden onA uxiliaryOutput Contacts

ConstructionDim W x H x D in mmPanel Cutout

Auxiliary Supply

3 Ph Voltage & Freq. Relay81, 27, 59, df/dt, de/dtNumericFrequency-4 stages selectableas under or over or under/overVoltages - 2 stages selectableRate of change of frequencyprotection df / dt - 2 StagesRate of change of voltageprotection de /dt - 1 StageBlocking function

100 - 125V PT inputDisplay of ParametersBuilt in self supervisionRS485 Port CommunicationNot applicable0.04 VA10 to 60 C< 2kg8.5 VA4 C/O, S/R or H/R or Time del1 C/O for self supervisionDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC

0 0C

3 Ph Voltage & Freq. Relay

0 0C

81, 27, 59, V/Hz, 59d, 59s, 59UoNumericOver exitation-2 stagesFrequency-2 stages selectableas under or over or under/overVoltages - 2 stages selectableas under or over Direct SequenceNegative Sequence Zero Sequence - 2 StagesBlocking function100 - 125V PT inputDisplay of ParametersBuilt in self supervisionRS485 Port CommunicationNot applicable0.04 VA10 to 60 C< 2kg8.5 VA4 C/O, S/R or H/R or Time del1 C/O for self supervisionDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC

3 Ph Dir O/C & E/F + Highset

0 0C

50/67 RYBN, 50 LBBNumericLow Set Dir O/CHighset Dir O/CLow Set Dir E/FTrip time Char : NI, VI, EI, Def timeCB Failure FunctionAuto Doubling of HighsetBlocking FunctionMTA Setting = 0-359°1 A or 5 A site selectable100 - 125V PT inputDisplay of ParametersBuilt in Self supervisionRS485 Port Communication0.2 VA for 5 A, 0.01 VA for 1 A 8.5 VA10 to 60 C< 2kg0.04 VA4 C/O, S/R or H/R or Time Del1 C/O for self supervisionDraw out121 x 158 x 224113 x 142

20-110V AC / DC or88-264V AC / DC


21

15

mm

8

204mm

224mm

121mm

Model UFD34 UM30A UM30A

MD32T, IM30T, UM30SV

22

MD32T

MD32T

R = Stabilising resistorZ = Protection surgearrester (if required)

L/+

N/-

IM30T

IM30T

L/+

N/-

UM30SV

Wiring Diagrams

˜

˜

IEC 255 ˜˜

=

˜̃

˜

87T + 87N

A B C

In1

I1A

I1B

I1C

25

26

27

2839

V1

V2

Kv =V1

V2

29

I2A

I2B

I2C

3041

31423243

Z

33

12

13

R 50-60

1/5A

1/5A

1/5A

1/5A

KEYBOARD

PROGR.INT. FAULT

R5

R4

R3

R2

R1F187TF287TF87N

FUNCTION

MICROP.

DISPLAYR1

R2

R3

R4

R5

B3

B2

B1

9 PIN MALE

CS-S+

242334/381

2

3

14

16

17155

6419

2018

8

972211

1021

(21)

N.O.

N.O.

N.C.

N.C.

(10)

V1

V2á

1/5A

1/5A

1/5A

1/5A

A B C A B C A B C

25

26

27

28

39

29

41

303243

31

42

33

25

26

27

28

39

29

41

303243

31

42

33

25

26

27

28

39

29

41

303243

31

42

33

˜

˜̃˜

˜˜

=

_

44

12

13

In = 5A In = 1A

PRESA/TAP 31 Ion = 5APRESA/TAP 33 Ion = 1A

KEYBOARD

PROGR.INT.FAULT

R5

R4

R3

R2

R1

R3

R4

R5

R2

R1

F46

2I t = KF51BFF51NF50NF51F50F49

FUNCTION

MICROP.

DISPLAY

RT

BIO

BIF

CS-S+

9 PIN MALE

242334/38

1

2

3

14

16

17155

6419

2018

8

972211

1021

(21)

N.O.

N.O.

N.C.

N.C.

(10)

IEC 255

BT 2 50

DISPLAY

MICROP.

UM30SVFUNZIONIFUNCTION

F27/59

F27d/59d

F59s

F59Uo

F81

F59/81

PROGR.INT.FAULT

KEYBOARDTASTIERA

R1

R2

R3

R4

R5R3

R4

R5

R2

R1

14BI<

BI>

RS485

CS-S+

24233812

3

1416

1715

5

64

19

2018

8

972211

10

21 (21)

N.O.

N.C.

(10)

N.C.

N.O.

˜˜

˜

=

_12

13

AUXILIARYSUPPLY

˜̃BT 2 50

Uo

UB

UC UA

EC EB

EA

4130

29

39

28

27

26

25A

B

C

1/5A

1/5A

1/5A

3 Phase Thermal + Over Current + Earth Fault Relay for transformer protection

Percentage Biased Transformer Differential Relay

Transformer Protectionand Vector Shift Relay


• Separate LEDs for individual fault indication





23

Description


Other Features

Burden on CTOperating tempWeightBurden on Auxiliary supplyOutput ContactsConstructionDim W x H x D in mmPanel Cutout

Auxilary Supply

24, 27d/59d, 47, 59, 59Uo, 78, 81Over FluxingO/V + U/VO/F + U/FZero seq. voltageVoltage unbalancedVector surge

Display of parameterBuilt in self supervisionRS485 Port

10 to 60 C< 2kg8.5VA5%Panel monitoring121 x 158 x 224113 x 142

20-110V AC / DC

3 ph voltage and frequency relay

0 0C


3 Ph O/C, E/F + Thermal

0 0C

250/51 RYBN, 49, 46, I tNumericLowset O/C Highset O/CLowset E/FHighset E/FThermal Overload Lowset current unbalance withDefinate / Inverse time trippingHighset current unbalanceInrush Energy protectionCB Failure functionBlocking function

Display of ParametersBuilt in self supervisionRS485 Port 1 A OR 5 A site selectable

0.2 VA for 5 A, 0.01 VA for 1 A10 to 60 C< 2kg8.5 VA5 C/O, S/R or H/R or Time delDraw out121 x 158 x 224113 x 142

20-110V AC / DC

Transformer Differential + Restricted E/F

0 0C

87 RYB, 87NNumericLowset DifferentialLowset Op time : <=30mSHighset DifferentialHighset Op time : 6-20mSRestricted Earth FaultDual slope BiasHighset can be Biased / Unbiased2nd harmonic restraint setting5th harmonic restraint settingAuto correction of CT RatioZero sequence compensationBlocking FunctionDisplay of parametersBuilt in self supervisionRS485 Port1 A OR 5 A site selectableWaveform capture feature0.2 VA for 5 A, 0.01 VA for 1 A10 to 60 C< 2kg8.5 VA5 C/O, S/R or H/R or Time delDraw out121 x 158 x 224113 x 142

20-110V AC / DC

15

mm

8

204mm

224mm

121mm

Model MD32T IM30T UM30SV

MW33, MU30, IM30-DRE

MW33

MU30

IM30-DRE

L/+

L/-

L/+

L/-

Wiring Diagrams

1/5A

1/5A

1/5A

25

26

27

283929

4130

3243

3142

33

Un

Un

44

12

13In = 5A In = 1A Un = 100V

_

=˜ ˜˜

KEYBOARDTASTIERA

PROGR.INT.FAULT

R5

DISPLAY

MICROP.

MW33FUNZIONIFINCTION

F32 W

F32 VAR

WhVARh

R1R2

R3R4

R5

R4

R3

R2

R1

14

3

2

CS-S+

9 PIN MALE

242334/38

12

3

1416

17155

641920188

9722111021 (21)

N.O.

N.C.

(10)

N.O.

N.C.

IEC 255

In = 5A In = 1A Un = 100V

29

3041

31423243

25

26

27

28

42

Un

Un

12

13 ˜˜

˜_

=

1/5A

1/5A

1/5A

DISPLAY

MICROP.

MU30

FUNCTION

UIFP.F.P/ESQ/R

R1

R2

R3R4

PROGR.OMT.FAULT

R5

KEYBOARD

R1

R2

R3

R4

R5

14

3

2

CS-S+

9 PIN MALE

242334/38

1

2

3

14

16

17155

6419

20188

972211

1021

(21)

N.O.

N.O.

N.C.

N.C.

(10)

IEC 255

A B C

25

26

27

283929

3041

31

42

3243

33

A B C

25

26

27

283929

3041

31

42

3243

33

A B C

25

26

27

283929

3041

31

42

3243

33

12

CE

MS-SCE 1573-R0

In=5A

In=1A

Ion=5A

Ion=1A Un=100V

DISPLAY

MICROP.

IM30-DRE

FUNZIONIFUNCTION

R1

R1 21(21)

(10)

N.O.

N.O.

N.C.

N.C.

10

112279

81820

1946

51517

1614

3

2

1

382324

F50

F51

F67N

PROGR.

INT.FAULT

9 PIN MALE

S–S+

C

KEYBOARDTASTIERA

R2

R2

R3

R3

R4

R4

R5

R5

BIR

BI

C/B

13

1/5A

1/5A

1/5A

1/5A

1/5A

BT

BT

2

2

50

50

24

Power Management Relay Multifunction 3 Phase Measuring Instrument

• Display of various parameters, event count & event data on 8 digit alphanumeric display






Description

Device Code


Other Features

Burden on CTBurden on PTOperating tempWeightBurden on Auxiliary supplyOutput ContactsConstructionDim W x H x D in mmPanel Cutout


Measurment

Measure

NumericActual measurements ofFreq, I, V, PF,Power - Active / Reactive / -ApparentEnergy - Active / ReactiveMaximum DemandDisplay of ParametersRecord of last event RS485 Port, Event recording,Event counter, MD recording, Oscillographic wave form capture

0.2 VA for 5 A, 0.01 VA for 1 A0.04 VA10 C to 60 C< 2kg8.5 VA max5 C/ODraw out 121 x 158 x 224113 x 142

20-110V AC / DC88-264V AC / DC

0 0

3 ph voltage / frequency relaywith auto reclosing46, 50/51, 50N/51N, 51BF,67N, 68, 79O/C protectionE/F protection4 stage A/R

Display of ParametersLast trip data RS485 Port0.2 VA Not Applicable

10 C to 60 C< 2kg8.5 VA 5 C/ODraw out 121 x 158 x 224113 x 142

20-110V AC / DC88-264V AC / DC

0 0

Power management

0 0

81, 27, 59, PF, P, QL, QC

NumericFrequence 2 stages,Voltage 2 stage,Power factor 2 stage,Active power 2 stage,Capacitor reactive power 2 stage. Actual measurement of Freq,V, I, PF, active power, reactive power.Display of parametersMD recording & data loggingRS485 Port, Event recording

O.2 VA for 5 A, 0.01 VA for 1 A0.04 VA10 C to 60 C< 2kg8.5 VA max5 C/ODraw out 121 x 158 x 224113 x 142

20-110V AC / DC88-264V AC / DC


25

\

15

mm

8

204mm

224mm

121mm

Control & Supervision Relays

Model MW33 MU30 IM30-DRE (AUTO RECLOSING)

Wiring Diagrams

MC30

MC20-R

26

1/5A

1/5A

1/5A

1/5A

4

5

6

7

8

9

In=

F50

F51

F50N

F51N

PROGR.INT.FAULT

R1

R2

R3

R4

R1

R2

R3

R4

D3

D2

D1

RS232KEYBOARD TASTIERA

10

11

BPMC

16

18

1714

15

13

12

2021

1922

OUTPUTRELAYS

RELEDI USCITA

DIGITALINPUTS

INCRESSIDIGITAL

321

RS485

MS-SCE1895-R2STANDARD OUTPUT

MS -SCE1924-R2I/O Output

DIGITALINPUTINGRESSDIGITAL

TO I/0 RELAYEXPANSIONALL ESPANSIONEDI I/0COMUNECOMUNE

RS485

R1

R2

R3

D3

D2

D1

OUTPUTRELAYS

RELEDI USCITA

CA (S+)B (S-)

LH

C

A (S+)B (S-)

16

18

1714

15

20

19

21

22

1312

3

21

AUXILARY SUPPLY

5A1A

DISPLAY

MICROP.

MC30FUNZION

FUNCTIONS

1A

1AIon =

5A

5A

6

7

4

5

8

9

6

7

4

5

8

9

Auxilariy supply

1/5A

1/5A

1/5A

10

11

MS-SCE2021-RO

DISPLAY

MICROP.

MC20-RFUNZIONI

FUNCTIONS

F50F51

F50NF51N

F79

PROGR.INT, FAULT

R1

R2

R3

R4

RS232KEYBOARDTASTIERA

R1

R2

R3

R4

D3

D2

D1

CA (S+)B (S-)

15

18

1714

15

13

12

2021

1922

321

BPMC

OUTAUTRELAYS RELE

DI USCITA

DIGITALINPUTINGRESSDIGITAL

RS-485

MS- SCE2021-R0

Standard Output

R1

R2

R3

D3

D2

D1

L

C

A (S+)B (S-)

16

18

1714

15

2021

1922

1312

3

21

OUTPUTRELAYS

DIGITALINPUTSINGRESSDIGITAL

TO I/O RELAYEXPANSIONALL EXPANTIOND I/OCOMUNECOMUNE

RS485

MS-SCE2022-RO

I/O Expansion module Output

In =

DI USCITARELE

H

1

2

3

4

5

6

7

8

9

10

11

12

S1(5A)

S1(1A)

S2

AL

AR

M

+

+-

R

Y

B

N

R8

R7

R6

R5

R4

R3

R2

R1

13

14

15

16

17

18

19

20

21

22

23

24

Ph230V AC

50 HzN

BANK #8

TO

LOAD

BANK #1

RPM-8

MC30, MC20-R, RPM-8

Description

Device Code



Burden on CTBurden on PTBurden on Aux. SupplyOperating TempWeightOutput Contacts

ConstructionDimPanel Cutout

Aux. Supply Type 1 Type 2

Do not change

3 Phase OC + EF relay with thermalimage element50/51, 50N/51N, 51BF

Numeric3 Phase fault levels3 Earth fault levels1 Thermal image elementbreaker failure protection (LBB)

1 A or 5 A site selectableTime tagged multiple event recordingOscillographic wave form captureBlocking O/P’s and Inputs for better coordination

16 (8x2) character LCD display

RS232 and RS485 Ports availableModbus RTU / IEC 870-5-103communication protocol

0.1VA for 1 A CT & 0.3VA for 5 A CTNA< 7VA -10 C to 55 C

4 N/O

Draw out83 x 164 x 22562 x 142

24-110V AC or 24-125V DC80-220V AC or 90-250V DC

0 0

3 Phase OC + EF relay withAutoreclosing50/51, 50N/51N, 51BF, 79

Numeric3 Phase fault levels3 Earth fault levels4 Shots programmable reclosingReclosure sequence coordinationbreaker failure protection (LBB)

1 A or 5 A site selectableTime tagged multiple event recordingOscillographic wave form captureBlocking O/P’s and Inputs for better coordination

16 (8x2) character LCD display1 Rip circuit breaker control via serialport

RS232 and RS485 Ports availableModbus RTU / IEC 870-5-103communication protocol

0.1VA for 1 A CT & 0.3VA for 5 A CTNA< 7VA

4 N/O

Draw out83 x 164 x 22562 x 142

24-110V AC or 24-125V DC80-220V AC or 90-250V DC

0 0-10 C to 55 C


27

15

mm

8

204mm

224mm

121mm

Model IM30AB MC30 MC20-R

For selection and product demonstration, please contact any of our branch offices listed below:

Product improvement is a continuous process. For the latest information and special applications, please contact any of our offices listed here.

Electrical Standard Products

Larsen & Toubro Limited

Powai Campus, Mumbai 400 072

Tel: 022-6705 0505

Fax: 022-67051324 / 1746

E-mail: [email protected]

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L&T HouseGroup MIG - 5PadmanabhpurDurg 491 001Tel: 0788-2213833 / 14 / 28 / 29Fax: 0788-2213820

A1/11, Astronauts AvenueBidhan NagarDurgapur 713 212Tel: 0343-2536493 / 39Fax: 0343-2536493e-mail: [email protected]

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A28,Indira NagarFaizabad RoadLucknow 226 016 Uttar PradeshTel: 0522-4040905 / 903 / 904Fax: 0522-2311671e-mail: [email protected]

Plot No. 5184th Main RoadK. K. NagarMadurai 625 020Tel: 0452-2537404 / 303Fax: 0452-2537552e-mail: [email protected]

North Wing, Level II, Gate 7, PowaiMumbai 400 072Tel: 022-67050505Fax: 022-67051112e-mail: [email protected]

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32, Shivaji Marg, P.O. Box 6223New Delhi 110 015Tel: 011-51419500 / 1 , 51419515Fax: 011-51419600e-mail: [email protected]

L&T House, P.O. Box 119191/1, Dhole Patil RoadPune 411 001Tel: 020-66033395 / 88 / 89Fax: 020-26129586e-mail: [email protected]

3rd Floor, Vishwakarma ChambersMajura Gate, Ring RoadSurat 395 002Tel: 0261-2473726Fax: 0261-2477078e-mail: [email protected]

Radhadaya ComplexOld Padra RoadNear Charotar SocietyVadodara 390 015Tel: 0265-6613611Fax: 0265-2336184e-mail: [email protected]

48-8-16, DwarakanagarVisakhapatnam 530 016Tel: 0891-2755493, 2704928 Fax: 0891-2746075e-mail: [email protected]

SP 50297 R1 210507

REGISTERED OFFICE AND HEAD OFFICEL&T House, Ballard EstateP. O. Box 278Mumbai 400 001Tel: 022-67525656Fax: 022-67525858Website: www.Larsentoubro.com

ELECTRICAL STANDARD PRODUCTS (ESP)501, Sakar Complex Opp. Gandhigram Rly. StationAshram RoadAhmedabad 380 009Tel: 079-66304007-11, 55304000/1 Fax: 079-26580491e-mail: [email protected]

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131/1, Zone IIMaharana Pratap NagarBhopal 462 011Tel: 0755-6454906 / 7 / 8 / 9Fax: 0755-2769264e-mail: [email protected]

Plot No. 559, Annapurna ComplexLewis RoadBhubaneswar 751 014Tel: 0674-2537301, 2436696Fax: 0674-2537309e-mail: [email protected]

SCO 32, Sector 26-DMadhya Marg, P. O. Box 14Chandigarh 160 026Tel: 0172-4646841 / 2 / 3 / 4 / 5 / 6 / 7Fax: 0172-4646802e-mail: [email protected]

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67, Appuswamy RoadPost Bag 7156 Opp. Nirmala CollegeCoimbatore 641 045Tel: 0422-Fax: 0422-e-mail: [email protected]

2588120, 2588121 / 32588148,

Digital Protection Relays

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