Mm-30 Relay

Digital Protective Relays

Larsen & Toubro Larsen & Toubro infuses engineering with imagination. The Company offers a wide range of advanced solutions in the field of Engineering, Construction, Electrical & Automation, Machinery and Information Technology. L&T Switchgear, a part of the Electrical & Automation business, is India's largest manufacturer of low voltage switchgear, with the scale, sophistication and range to meet global benchmarks. With over five decades of experience in this field, the Company today enjoys a leadership position in the Indian market with a growing international presence. It offers a complete range of products including powergear, controlgear, industrial automation, building electricals & automation, reactive power management, energy meters, and protective relays. These products conform to Indian and International Standards. L&T 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 and trivector meters at the Mysore works.

Mysore Works

Contents

Pages ANSI / IEEE Device Function Number Details

1

Time - Current Characteristics

2

Over Current Relays & Earth fault Relays - MC31A, MC61A, MC61C

3

Current Sensing Relays - MC12A, ME12A, SC14S

5

Reverse Power Relay - MRP11 Voltage Relay - MV12

7

Power Factor Control Relays - RPM14, RPM08

9

Motor Protection Relays - MM30, MM30W, N-DIN-MA MCOMP, MPR300

11 13

Generator Protection Relays - MG30, MG30I, MD32G

15

Transformer Protection Relays - IM30T, MD32T, MD32TM

17

Feeder Protection Relays - MC20, MC30, FMR Vector Surge Protection Relay - UM30A

19

Control & Supervision Relays - MW33 Synchronising Load Sharing Relays - SPM21, RRS

23

Voltage and Frequency Relays - MC1V, MC3V, UFD34

25

ANSI/IEEE Correlation between ANSI/IEEE device Function number and Relays Device No.

Function Name

21 25

Under impedance relay / Distance relay Auto Synchronising Synchro-check relay AC under voltage relay

L&T Relays

MS Relays

MG30 / MG30-I SPM21 SCM21 MV12 27 UM30-A / MC1V / MC3V UFD34 MRP11 Power directional relay 32 MG30 / MW33 / MG30-I Under current or under power relay 37 MM30 MW33 Field control (loss of field) relay 40 MG30 / MG30-I DC over voltage relay 45 UBC / 45 Reverse phase or phase balance current relay 46 IM30T MM30 Phase-sequence or single-phasing voltage relay 47 UM30-A, MC3V Machine or transformer thermal relay 49 IM30T MG30 / MG30-I MPR300 MM30 / MM30-W Instantaneous over current (or rate-of-rise) relay 50 MC20 / MC30 ME12 IM30-T / IM30-AP MC12A FMR MC61A / MC61C MG30 / MG30-I 51V, 50V Voltage restrained over current relay MG30 / MG30-I Breaker - failure 50BF MC20 / MC30 / FMR / IM30T / IM30AP MC12A Instanteneous earth fault over current relay 50N IM30 AP / IM30-T MC61A MC20 / MC30 MC61C FMR / IM30-T MC12A AC time over current relay 51 IM30-AP / IM30-T MC61A MC20 / MC30 MC31A FMR / IM30-T MC61C -MC12A 51N-(51G) Ground fault time over current relay IM30-AP / IM30-T MC61A MC20 / MC30 MC31A FMR MC61C -– Rectifier failure relay (rotating diodes) 58 RHS MV12 AC over voltage relay 59 --UFD34, MW33 -Overexcitation relay V/Hz 59/81 UM30-A / MG30 / MG30-I Voltage balance relay 60 UM30-A Ground detector (insulation to ground failure of machine or other apparatus) MG30 64 -Machine stator ground fault detector relay 64S MG30 -Machine rotor ground fault detector relay 64R UBO / CR -AC directional over current relay 67 FMR -67N-(67G) Directional ground fault over current relay FMR – DC over current relay 76 – – Phase angle measuring or out of-step protection relay 78 IM30-GOS -Reclosing relay 79 MC20R -DC under voltage relay 80 UBC / 80 – Frequency relay 81 UM30-ASV / MG30 -UFD34 / MC1V / MC3V / MW33 -Lock-out relay 86 -SC14S Differential protective relay 87 MD32G -MD32T / MD32TM – 87N-(87G) Ground fault differential protective relay MD32G, MD32T – Regulating device to adjust a quantity 90 -– Automatic active or reactive load sharing relay 95 RRS Vector surge protection relay UM30-A – Rate of change of frequency df/dt UFD34

1

Time - Current Characteristics

Product design standards Reference standards IEC 60255, IEC 61000, IS3231, IS8686 Dielectric test Impulse test HF disturbance test Electrostatic discharge test Electrical fast transient Radiated electro magnetic field test Surge immunity Ring wave test Voltage dips & interruption test Power frequency magnetic test

: IS 3231 / IEC 60255-5 : IS 8686 / IEC 60255- 5 : IS 8686 / IEC 60255-22-1 : IEC 61000-4-2 : IEC 61000-4-4 : IEC 61000-4-3 : IEC 61000-4-5 : IEC 61000-4-12 : IEC 61000-4-11 : IEC 61000-4-8

Time - Current Characteristics (At TMS = 1) 1,000

Trip Time (Sec.)

100

10

A 1

B C

D 01 1

10

20

Multiple of set current (Is)

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

A : Normal Inverse 3.0 Sec B : Normal Inverse 1.3 Sec C : Very Inverse D : Extreme Inverse

2

Over Current and Earth Fault Relays • Three Phase Over Current & Earth fault Relays

Salient Features • 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 on relay fault • Separate fault indication • In MC61C - Communication with computer & breaker control through RS485 Port • Four user programmable output relays

Model

MC31A

MC61A

Description

3 Phase O/C + E/F

3 Phase O/C + E/F + Highset

Device Code Design Functions Available

Settings

Other Features

Burden on CT Burden on PT Operating temp Weight Burden on Auxiliary supply Output Contact Construction Dim W x H x D in mm Panel Cut out

MC61C

3 Phase O/C + E/F + Highset Communication and breaker control 50/51 RYBN 51 RYBN 50/51 RYBN Numerical Relay Numerical Relay Numerical Relay Lowset O/C -Is Lowset O/C -Is Lowset O/C -Is Highset O/C -Ihs Lowset E/F -Os Highset O/C -Ihs Lowset E/F -Os Lowset E/F -Os Highset E/F -Ohs Highset E/F -Ohs O/C Is = 20-200% Step 5% O/C Is = 20-200% Step 5% O/C Is = 20-200% Step 5% E/F Os = 5-80% Step 5% E/F Os = 5-80% Step 5% E/F Os = 5-80% Step 5% Time Characteristics available - HS O/C = (0.2 to 40) x In step of - HS O/C = (0.2 to 40) x In step of 0.2 In or disable 0.2 In or disable NI, VI, EI, Definite Time HS E/F = (0.1 to 20) x On step of - HS E/F = (0.1 to 20) x On step of TMS 0.1 - 1.6 Step 0.05 0.1 On or disable 0.1 On or disable Time Characteristics available Time Characteristics available NI, VI, EI, Definite Time NI, VI, EI, Definite Time TMS : 0.1 - 1.6 Step 0.05 TMS : 0.1 - 1.6 Step 0.05 HS delay:0.1-2 Sec step 0.01 Site selectable Trip time Char. Site selectable Trip time Char. Sec. or Inst. RS485 Communication Highset can be disabled Breaker control Display of Currents, Trip count Display of Currents, Trip count Auto doubling of highset, Self supervision feature Self supervision feature Relay co-ordination - BI & BO £ 0.25 VA on CT/Phase £ 0.25 VA on CT/Phase £ 0.25 VA on CT/Phase Not applicable Not applicable Not applicable 00C to 600C 0 0C to 600C 00C to 600C < 2kg < 2kg < 2kg £ 10 VA £ 10 VA £ 10 VA 1 N/O Contact for self suprvn 1 N/O Contact for self suprvn, 1N/O for trip 1 N/O Contact for self suprvn Draw out Draw out Draw out 121 x 158 x 224 121 x 158 x 224 121 x 158 x 224 113 x 142 113 x 142 113 x 142 Ordering Information

Auxiliary supply Type 1 Type 2 CT Rating Output Contacts

20-110 V AC / DC or 88-264 V AC / DC 1 A or 5 A (site selectable) 4 NO or 2 NO + 2 NC

20-110 V AC / DC or 88-264 V AC / DC 1 A or 5 A (site selectable) 4 NO or 2 NO + 2 NC

20-110 V AC / DC or 88-264 V AC / DC 1 A or 5 A (not site selectable) 4 NO

3

Wiring Diagrams MC31A R

Y

B

1

R

Y

B 1

2

2

3

3

4

4

13

13

5

5

6

6

MICRO CONTROLLER

N0

R1

9

MC31A PROTECTION

10 NC

R2

11 12

F50(Is) R3

F51(0s) 15

15

16

16

7

7

8

8

17 18

R4 27 R

Y

B

E

28

21 R5

22

In = 0n =

1A; 1A;

L/+

5A 5A

N/- 26

29

PROG. ERROR

25

30

˜

MC61A R

Y

B

R

Y

B

1

1

2

2

3

3

4

4

13

13

5

5

6

6

MICRO CONTROLLER

R1

N0 9

MC61A PROTECTION

10 NC

R2 11 12

F50(Is)

15

15

16

16

7

7

8

8

R3

F51(Os)

17

F50(Ihs) 18

F51(Ohs) R4

27 R

Y

B

E

28

21 R5

22 In =

1A;

5A

0n =

1A;

5A

L/+ N/-

29

PROG ERROR

25

30 26

MC61C R

Y

B

R

Y

B

1

1

2

2

3

3

4

4

R1

10 R2

13

5

5

6

6

F51(Os)

15

15

F50(Ihs)

16

16

F51(Ohs)

7

7

F50(Is)

12 R3

17

R4

R

Y

B

E

D2 D3

In = 0n =

1A ; 1A ;

5A 5A

L/+

PROG ERROR

25

N/- 26

˜

C SS+ 9 PIN MALE

4

18

OPEN

27

BKR

28

CLOSE

29

21 22

NC BKR

R5

D1

8

NO

11

MC61C PROTECTION

13

8

9

MICRO CONTROLLER

30 19 L/R 20 BI* 31 32

Current Sensing Relays • Single Phase Over current / Earth fault Relay • Sensitive E/F Relay / Instantaneous Current Relay Salient Features • Easy setting through front panel DIP switches • Indication for Power ON and trip status • Test feature - helps in better maintenance • Compact, light weight helps in reducing panel size & thickness

Model

MC12A

ME12A

SC14S

Description Device Code Design Functions Available

1 Ph O/C or E/F 50/51 or 50N/51N Microcontroller Based Lowset O/C -Is Highset O/C -Ihs Lowset E/F -Os Highset E/F -Is O/C Is = 50-200% Step 10% OR E/F Is = 10-40% Step 2% OR E/F Is = 20-80% Step 4% HS O/C = (2-16) xls step 2 Is HS E/F = (2-16) xls step 2 Is Time Characteristics availableNl, VI, EI, Definite Time 3 ranges of def Time (1, 10,100) TMS : 0.1 - 1.6 Step 0.1 Site selectable Trip time Char. Highset can be disabled

1 Ph Sensitive E/F 50N/51N Microcontroller Based Lowset S E/F -Is Highset S E/F -Ihs.

Instantaneous current relay 87N/64R Static

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

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

Time Characteristics availableNI, VI, EI, Definite Time 3 ranges of def Time (1, 10, 100) TMS : 0.1 - 1.6 Step 0.1 Site selectable Trip time Char. Highset can be disabled Harmonic rejection 0.25 VA on CT Not applicable 00C to 600C < 1.5kg 5.5 VA 2 C/O Contacts (S/R) Draw out 71 x 158 x 224 62 x 142

Time Characteristics availableInstantaneous (25ms) OR time delayed 100ms / 200ms Self Powered Relay testing possible by ext. 24 V Supply Flag indication / LED indication 6 VA Not Applicable 00C to 600C < 1.5kg Not Applicable 2 C/O Contacts (S/R) Draw out 71 x 158 x 224 62 x 142

Settings

Other Features

Burden on CT Burden on PT Operating temp Weight Burden on Auxiliary supply Output Contacts Construction Dim W x H x D in mm Panel Cutout

0.25 VA on CT Not applicable 00C - 600C < 1.5kg 5.5 VA 2 C/O Contacts (S/R) Draw out 71 x 158 x 224 62 x 142

Auxiliary supply Type 1 Type 2 CT Rating Range Setting

20-110 V AC / DC or 88-264 V AC / DC 1 A or 5 A 10-40% or 20-80% or 50-200% Site Selectable

Ordering Information 20-110 V AC / DC or 88-264 V AC / DC 1 A or 5 A

Not Applicable 1 A or 5 A 10-40% or 20-80%

5

Wiring Diagrams

MC12A / ME12A

COM

1

2

+VE/PH. Aux. Supply

3

-VE/N

R1 μP. Control Ckt. F50/50N F51/51N

10

COM

11 12

MC12A / ME12 SETTING RANGE (Is) AUX SUPPLY 24 - 110V AC/DC 95 - 240V AC/DC

In 1A 5A

ME12 (1-16)% In

MC12A (10-40)% In (20-80)% In (50-200)% In

SC14S

11

2

10

˜

9

1 Control Ckt.

R

3

7 +

5 DC-DC

Test (24V) Voltage

Test 6

Convrt.

8

4 12

SC14S In 1A 5A

6

CT OPERATED RELAY NO AUXILIARY SUPPLY REQUIRED

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

Reverse Power Relay, Under Voltage or Over Voltage Relay

Salient Features • Easy setting through front panel DIP switches • LED indication for Power ON and trip status • Test feature - helps in better maintenance • Compact, light weight helps in reducing panel size & thickness

Model

MRP11

MV12

Description Device Code Design Functions Available

Reverse Power 32 Microcontroller Based Reverse Power Level

1 Ph U/V OR O/V 27 OR 59 Microcontroller Based Lowset U/V - Vs Lowset O/V - Vs

Settings

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

U/V Vs = 95-20% step 5% O/V Vs = 105-180% step 5% Time Characteristics availableInverse time, Definite time TMS : 0.1 - 1.6 Step 0.1

Other Features

LED indication Test feature

Site selectable U/V OR O/V Site selectable Trip time Char.

Burden on PT Burden on CT Operating temp Weight Burden on Auxiliary supply Output Contacts Construction Dim W x H x D in mm Panel Cutout

< 0.25 VA < 0.05 VA 00C to 600C < 1.5 kg < 8 VA 1 N/O + 1 C/O Draw out 71 x 158 x 224 62 x 142

< 0.25 VA ?0.075 VA on PT 00C to 600C < 1.5 kg ?8 VA 2 C/O Contacts (S/R) Draw out 71 x 158 x 224 62 x 142

Auxiliary supply Type 1 Type 2 CT Rating PT Rating

Ordering Information 20-110 V AC / DC 88-264 V AC / DC 1A or 5 A Upto 380 V AC

20-110 V AC / DC 88-264 V AC / DC Not Applicable 110 V / 240 V / 415 V (site selectable)

7

Wiring Diagrams

MRP11

1 R Y B

4

2

+ VE / PH.

3

Aux. Supply – VE / N

5 R1

μP. Control Ckt. F32

11

7 8

12

6

9 10

MRP11 Vn 110 V AC 415 V AC

In

AUX SUPPLY 24–110 V AC/DC 95–240 V AC/DC

1A 5A

MV12

1 5 2

4

3

+VE/PH. Aux. Supply

4

-VE/N

R1 μP.Control Ckt. F27 F59

6 8

11 9 12 7

MV12

8

Power Factor Control Monitoring Relays • (8 & 14 Stages) Intelligent Power Factor Controller Relay

Salient Features • On line display of system PF • Easy setting through - front panel push button • Suitable for non-uniform banks • LED indication for alarm code, no. of Banks selected, PF statuslead / lag / unity • Auto / Manual mode • Measurement sensitivity of 1% • Automatic C/K correction • Display of cuttent, Voltage, kVAr, & Capacitor values

Model

RPM-8

RPM-14

Description

Automatic Power Factor Controller 8 stage

Automatic Power Factor Controller 14 stage

Microcontroller Based Automatic PF control upto 8 stage Switching time 1-255 Sec. in step of 1 sec for same Bank switching Auto C/K sellection PF control range 1% to 120% of rated current Can accept unequal banks Display of PF, V, l, kVAr LED indications for faults Alarm signal for CT reversal, under current, Under compensation, over compensation, over voltage, 1 A / 5 A field selectable 0.3 VA 15 VA 00C to 600C < 2kg 8 N/O 1 N/O contact for alarm 144 x 144 x 100 138 x 138

Microcontroller Based Automatic PF control upto 14 stage Switching time 1-255 Sec. in step of 1 sec for same Bank switching Auto C/K sellection PF control range 1% to 120% of rated current Can accept unequal banks Display of PF, V, l, kVAr LED indications for faults Alarm signal for CT reversal, under current, Under compensation, over compensation, over voltage, 1 A / 5 A field selectable 0.3 VA 15 VA 00C to 600C < 2kg 14 N/O 1 N/O contact for alarm 144 x 144 x 100 138 x 138

Device Code Design Functions Available Settings

Other Features

Burden on CT Burden on PT Operating temp Weight Output Contacts Dim W x H x D in mm Panel Cutout

Ordering Auxiliary supply

240 V AC

Information 240 V AC

9

Wiring Diagrams

RPM-8

Ph 230V AC 1

13

2

14

3

15 ALARM

4 5 6 S1(5A)

7

S1(1A)

8

S2

9

+ + -

50 Hz N

16 R8

17

R7

18

R6

19

R5

20

R4

21

10

R3

22

11

R2

23

12

R1

24

BANK #8

BANK #1 R Y

TO

B

LOAD

N

RPM-14

1 2 3 4 5 6 7 8 9 10 11 12

R13 13 R14 14 15 - 16 + 17 + 18 19 20 21 22 23 24

240V AC 50 Hz

Ph N

S2 S1(1A) S1(5A) ALARM

R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12

BANK #1

BANK #14

R Y B N

10

TO LOAD

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

Salient Features • Display of various parameters, trip count and trip data • LEDs for fault indication • User programmable output relays • Built in self supervision & self testing feature helps maintenance • RS485 Port for serial communication with “MSCOM” user friendly software

Model

MM30

MM30W

N-DIN-MA

Description Device Code

Motor Protection 50/51, 51LR, 64, 68, 49, 46, 37, St no, ltr Numeric Trip circuit supervision Thermal O/L and Pre-alarm Locked Rotor Current unbalance, phase reversal, Phase loss Over Current Earth Fault Repeat and prolonged starts Restart Inhibition No load running Blocking Function

Motor Protection 50/51, 51LR, 64, 49, 46, 37, St no, ltr, 55, 68, 81, 47, 12/14, 27/59 Numeric Trip circuit supervision Thermal O/L and Pre-alarm Locked Rotor Current unbalance, phase reversal, phase loss Over Current Earth Fault Repeat and prolonged starts Restart Inhibition No load running Blocking Function Under frequency / over frequency Under voltage / over voltage Running hours Low PF Auto setting 1 A or 5 A site selectable (Default 5 AMP) Selectable motor time constant (1 - 60 min) Display of parameters Built in self supervision RS485 port 0.2 VA for 5 A, 0.01 VA for 1 A Not Applicable 100C to 600C < 2kg 8.5 VA 4 C/O + 1 C/O for self supervision Draw out 121 x 158 x 224 113 x 142

Motor Protection 49, 51LR, 46, 37, 50/51, 64, St no, Itr

Design Functions Available

Auto setting 1 A or 5 A site selectable (Default 5 AMP) Selectable motor time constant (1 - 60 min) Display of parameters Built in self supervision RS485 port 0.2 VA for 5 A, 0.01 VA for 1 A Burden on CT Not Applicable Burden on PT 100C to 600C Operating temp < 2kg Weight 8.5 VA Burden on Auxiliary 4 C/O + 1 C/O for self supervision Output Contacts Draw out Construction Dim W x H x D in mm 121 x 158 x 224 113 x 142 Other Features

Numeric Thermal O/L and Pre-alarm Locked Rotor Current unbalance, phase reversal, phase loss Over Current Earth Fault Repeat and prolonged starts Restart Inhibition No load running Blocking Function

2 Programable digital inputs 1 Removable front face panel LCD Display 1 A or 5 A site selectable (Default 5 AMP) Selectable motor time constant (1-60 min) Display of parameters Built in self supervision RS485 port, front RS232 port (on FFP) 0.075 VA for 5 A, 0.01 VA for 1 A Not Applicable 100C to 600C < 1kg 3 VA 2 C/O Contacts DIN rail mounting FFP = 106 x 45 x 16 RMB = 106 x 85 x 72

Ordering Information Auxiliary supply

20-110 V AC / DC or 88-264 V AC / DC

20-110 V AC / DC or 88-264 V AC / DC

20-110 V AC / DC or 88-264 V AC / DC

11

Wiring Diagrams

MM30 A

B

C

A

B C 25

25 26

26

MICROP.

27

27

MM30

28 39 29

28 39 29

41 30 32 43

41 30 32 43

˜˜˜

31

31 In=5A In=1A

42

42

33

33

PROGR. INT. FAULT

44

11 22 7 9

R2

FUNCTION

F37 F46 F49 F51 F51R F64 St.No.> AI.0> Itr

21 10

R1

DISPLAY

R1

R3

8 18 20

R4

19 4 6

R5

5 15 17

R2 R3

L/+

12

N/-

13

˜

˜=

˜

(10) N.O.

N.C.

N.C.

16 14

R4

3

R5

2 1 34/38 23 24

C SS+

KEYBOARD

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

(21) N.O.

9 PIN MALE IEC 255

N-DIN-M N-DIN-M A

B

C

A 10

B

C

A

B

C

10

FFP Display /

10

Keyboard /

Signals A B + 0

RS485 11

11

11

8

8

8

9

9

9

RMB

RS485 A B + 0

N - DIN - M FUNCTIONS

F26

R1

16

F37 17

F46 12

12

12

13

13

13

F49 F51 BT 2

1

F51LR F64

Digital Input Digital Input

1 2

T

6

T

7

D1 D2

0

THERMISTOR INPUT COMMON

C 2

RTD

1 21 22

MS - SCE 1752 - R1

12

15

R2

St.Ctrl 14

PWR / I.R.F Trip ON OFF

B (S-)

RS485

A (S+)

4 5

Motor Protection Relay • Intelligent Motor Protection & Control Relay - MCOMP • Economical Motor Protection relay - MPR 300

MPR 300

MCOMP relay

Model

MCOMP

MPR 300

Description Device Code

Motor Protection 49, 14, 46, 50N, 3, 59, 27, 47, 81H, 81L, 66, 27LV, 47a, 47b Numeric Thermal Over load Locked rotor Current unbalance Phase loss Under current Over Voltage Under Voltage Over Frequency Under frequency Max. no. of starts Reacceleration Phase reversal Intelligent relay with separate protection, display and CT modules Suitable for 50/ 60 Hz Can be used with DOL, RDOLand Star delta starters Communication options Modbus RTU, Modbus TCP IP and Profbus Not Applicable Not Applicable 10 to 60° C < 2kg < 8VA 4C/O Split Protection unit 92 x 123 x 103.95 Display - 92 x 92 80 - 300 VAC/ 80 - 240 VDC

Motor Protection 49, 51LR, 64, 46, 37

Design Functions Available

Other Features

Burden on PT Burden on CT Operating temp Weight Burden on Auxiliary supply Output Contacts Dim W x H x D in mm Panel Cutout Auxiliary supply

Numeric Thermal overload Locked Rotor Earth fault Single phasing No load running

up to 88A Trip time characteristics as per IEC947

Not Applicable Not Applicable c 0-60 C < 0.5kg. < 8VA 1NO+1NC Not applicable Not applicable 240V AC

13

Wiring Diagrams

MCOMP Relay Typical Dol feeder with 415V, 3PH, 4-WIRE, 50Hz PH

240V AC TEST BUS

N X-25 T X-26 T

Q1

NLK

R Y B N

M COMP

F11 111 6A 112 F12

L11 - 201

1216A122 F13 1316A132 N11 - 201 4

6 DRIVE AVAILABLE RUN

Y

S1 S2

B

XC1-5 XC1-6 XC1-7 XC1-8 XC1-9 XC1-10

M OOMP CT UNIT

S1

X-42

S2

X-43 S

S

T4 CBCT

B

C8

C2

C3

L&T MAKE MCOMP C7 AUX. VOLT C6 DIGITAL INPUTS N PH 61 62 63 64 65 66 67 71 72

PMR/ CO

LED DISPLAY

PMR/ COMM

DIGITAL OUTPUT RELAY

MOTOR STATUS ESE

ALARM PICKUP

P 75

ESC

ELECT

TRIP

C4 RS 485

N 76 E 77 M COMP

PH

81

HAND RST P.B.

UNUSED DI

K3 106 82 HAND START P.B.

M

S1

83

84 K3 106 85

86

87

43

K3 106 88

89

TRIP

P1 T3 P2

Y

K4 44

11 STOP P.B 12

A1 K4

21 H2 R

A2

22

11 TRIP LED

S2

R

D1

81 82 83 84 85 86 87 88 89 90 91 92

RUN LED

S1

1 2 3 8 N BY R C1 REF. VOLTAGE

STOP COMMAND START COMMAND START COMMAND

P1 T2 P2

T5

XC1-2 XC1-3 XC1-4

S2

R

K3

XC1-1

RUN

5

3

S1

CBCT

1

P1 T1 P2

UNUSED DO

TRIP

DRIVE AVAILABLE

2

K4

H1 G 12

N

MPR300 Relay

R

Y

B

N

Aux. N/O

Start N/O Stop (N/C)

1

2 NC

3

4

5

6

NO

MPR300

M

14

Typical connection diagram for ‘Direct Starting’ application

7

8

Aux Supply

Generator Protection Relays • Multifunction Generator Protection Relays • Percentage Based Generator Differential Relay

Salient Features • Display of various parameters, trip count & trip data on 8 digit alphanumeric display • Separate LEDs for various fault indication • Four user programmable output relays • Built in self supervision & self testing feature help maintenance • Easy operation by 5 push buttons • RS485 Port for serial communication with “MSCOM” user friendly software

Model

MG30

Description Device Code

Generator Protection 21, 24, 27/59, 32, 37, 40, 46, 49, 50/27, 50V/51V, 51BF, 60FL, 64S, 68, 81 Design Numeric Functions Available Two levels of voltage controlled O/C, Thermal Image with pre-alarm, Two levels of current unbalance Two levels of under / over voltage Two levels of under / over frequency 95% + 100% Stator Earth fault, Two levels of Over excitation Two levels of Under impedance, Loss of Field, Under Power PT Fuse Failure, Breaker Failure, Inadvertent C/B Closure etc. Other Features 1 A or 5 A site selectable Display of Parameters Built in Self supervision RS485 Port, MODBUS protocol. Blocking inputs & Blocking outputs Burden on CT 0.25 VA for 5 Amp CT 0.01 VA for 1 Amp CT Burden on PT 0.05 VA (MG30) Burden on Auxiliary supply 8.5 VA Operating temp 100C to 600C Weight < 2kg Output Contacts 3 C/O+(1 N/O + N/C)+separate relay 1 C/O for self supervision Construction Draw out Dim W x H x D in mm 121 x 158 x 224 Panel Cutout 113 x 142

MG30-I

MD32-G

Generator Protection 21, 24, 27/59, 32, 37, 40, 46, 49, 50/27, 50V/51V, 51BF, 60FL, 64S, 68, 81 Numeric Two levels of voltage controlled O/C, Thermal Image with pre-alarm, Two levels of current unbalance Two levels of under / over voltage Two levels of under / over frequency 95% stator Earth fault Two levels of Over excitation Two levels of Under impedance, Loss of Field, Under Power PT Fuse Failure, Breaker Failure, Inadvertent C/B Closure etc. 1 A or 5 A site selectable Display of Parameters Built in Self supervision RS485 Port, MODBUS protocol. Blocking inputs & Blocking outputs 0.25 VA for 5 Amp CT 0.01 VA for 1 Amp CT 0.05 VA (MG30) 8.5 VA 100C to 600C < 2kg 3 C/O+(1 N/O + N/C)+separate relay 1 C/O for self supervision Draw out 121 x 158 x 224 113 x 142

Generator Differential 87, 50/51, 64S/87N, 68 Numeric Generator Differential Bias % with dual adjustable slope Over Current Stator E/F CB Failure protection

1 A or 5 A site selectable Display of Parameters Wave form capture feature Built in Self supervision, RS485 Port 0.2 VA for 5 A, 0.01 VA for 1 A Not Applicable 8.5 VA -100C to 600C < 2kg 4 C/O, S/R or H/R or Time del 1 C/O for self supervision Draw out 121 x 158 x 224 113 x 142

Ordering Information Auxiliary supply Type 1 Type 2

20-110 V AC / DC or 88-264 V AC / DC

20-110 V AC / DC or 88-264 V AC / DC

20-110 V AC / DC or 88-264 V AC / DC

15

Wiring Diagrams

MG30 25 DISPLAY

21 10

R1

1/5A

MICROP.

26

MG30

1/5A

27

R2

7 9

R3

8 18 20

R4

19 4 6

R5

5 15 17

FUNZIONI FUNCTION

1/5A

28 39 29

G

11 22

1>,Z<,Uo> 1/5A

30 41

12>,T>

R1

Zc<, O>

R2

U,f

1/5A

W<, Ir>

31 42 32 43 33

MG30

PROGR. R5 INT. FAULT

1/5A

44

KEYB0ARD TASTIERA

13

N.O. N.C.

37(b) TO REX 38(a) RELAY EXPANSION 23 24

C S– S+

12

(10 – 11)

14 3 2 1

14 3 2

R4

B.I./B.F.

N.O. N.C.

16

R3

IC, 60FL

1/5A

(21 – 22)

9 PIN MALE

CE MS-SCE 1629-R0

In=1A

In=5A

Un=100V

MG30-I 25 DISPLAY

26

MG30-I 27

11 22 7 9 8 18 20 19 4 6 5 15 17 18

R2

FUNZIONI FUNCTION

R3

28 39 29

G

21 10

R1

MICROP.

I>, Z<, Io> 1/5A

30 41

I2>, T>

R1

Zc<,

R2

>

R5

U, 1

1/5A

w<+ Ir>

31 42 32 43

R4

IC, 60FL B.I / B.F.

1/5A

R3 3 2

PROGR. INT.FAULT

1/5A

33

37(b)

R5 c ss+

KEYBOARD TASTIERA

12 In =

1A

In =

5A

13

N.O. N.C.

14 3 2 1

14

R4

(21 - 22) N.O. N.C. (10 - 11)

38(0) 23 24

TO REX RELAY EXPANSION

RS485

MS-SCE1759-R0

MD32-G A

B

87G + 87N

C I1A

25

26

I1C

21 10

R1

DISPLAY

1/5A

I1B

11 22 7 9

MICROP. R2

1/5A

MD32-G

27 1/5A

28 39

FUNCTION

R3

8 18 20

R4

19 4 6

R5

5 15 17

G F187G F287G F87N

29

R4

30 41

I2B R = Stabilising resistor Z = Protection surge arrester (if required)

I2C

B3

Z

16

1/5A

33

L/+ 12 N/- 13

PROGR. INT. FAULT

1/5A

˜˜˜

50-60

_

˜

˜

˜=

R5

KEYBOARD

N.C. (10) N.O. N.C.

16 14

1/5A

31 42 32 43 R

R2 R3

1/5A

I2A

R1

(21) N.O.

3

B2 B1 C SS+

9 PIN MALE

2 1 34/38 23 24

Transformer Protection Relay • Percentage Based Transformer Differential Relay • 3 Phase Thermal + Over Current + Earth Fault Relay for transformer protection

Salient Features • Display of various parameters, trip count & trip data on 8 digit alphanumeric display • Separate LEDs for individual fault indication • Four user programmable output relays • Built in self supervision & self testing feature help maintenance • Easy operation by 5 push buttons • RS485 Port for serial communication with “MSCOM” user friendly software

Model

MD32T

MD32TM

IM30T

Description

Transformer Differential + Restricted E/F 87 RYB, 87N

Transformer Differential

3 Ph O/C, E/F + Thermal

Device Code Design Functions Available

Other Features

Burden on CT Operating temp Weight Burden on Auxiliary supply Output Contacts Construction Dim W x H x D in mm Panel Cutout

Numeric Lowset Differential Lowset Op time : <=30mS Highset Differential Highset Op time : 6-20mS Restricted Earth Fault Dual slope Bias Highset can be Biased / Unbiased 2nd harmonic restraint setting 5th harmonic restraint setting Auto correction of CT Ratio Zero sequence compensation Blocking Function Display of parameters Built in self supervision RS485 Port 1 A OR 5 A site selectable Waveform capture feature 0.2 VA for 5 A, 0.01 VA for 1 A 100C to 600C < 2kg 8.5 VA 5 C/O, S/R or H/R or Time del Draw out 121 x 158 x 224 113 x 142

50/51 RYBN, 49, 46, I2t, 51BF, 50N/51N Numeric Numeric Lowset Differential Lowset O/C Lowset Op time : <=30mS Highset O/C Highset Differential Lowset E/F Highset Op time : 6-20mS Highset E/F Dual slope Bias Thermal Overload Highset can be Biased / Unbiased Lowset current unbalance with 2nd harmonic restraint setting Definite / Inverse time tripping 5th harmonic restraint setting Highset current unbalance Auto correction of CT Ratio Inrush Energy protection Zero sequence compensation CB Failure function Blocking Function Blocking function 87 RYB

Display of parameters Built in self supervision RS485 Port 1 A OR 5 A site selectable Waveform capture feature 0.2 VA for 5 A, 0.01 VA for 1 A 100C to 600C < 2kg 8.5 VA 5 C/O, S/R or H/R or Time del Draw out 121 x 158 x 224 113 x 142

Display of Parameters Built in self supervision RS485 Port 1 A OR 5 A site selectable 0.2 VA for 5 A, 0.01 VA for 1 A 100C to 600C < 2kg 8.5 VA 5 C/O, S/R or H/R or Time del Draw out 121 x 158 x 224 113 x 142

Ordering Information Auxiliary Supply

20-110 V AC / DC 88-264 V AC / DC

20-110 V AC / DC 88-264 V AC / DC

20-110 V AC / DC 88-264 V AC / DC

17

Wiring Diagrams

MD32T / MD32TM A

B C I1A

87T + 87N

25

In1

26

I1C

MD32T

27

V2

28 39

V1

á

V2

1/5A

Kv =

R3

F187T F287T F87N

29

R1 R2 R3

1/5A

I2A

R = Stabilising resistor Z = Protection surge arrester (if required)

R4

30 41

I2B

I2C

19 N.C. 4 6

R5

5 15 17 16 14 3

B3 PROGR. R5 INT. FAULT

1/5A

Z

˜˜˜

1/5A

33

50-60

L/+ 12 IEC 255

R4

1/5A

31 42 32 43 R

R2

FUNCTION

V1 V2

˜

N/- 13

˜

˜

(21) N.O.

11 22 7 N.C. 9 (10) 8 18 N.O. 20

MICROP. 1/5A

V1

21 10

R1

DISPLAY

1/5A

I1B

B2

2 1 34/38 23 24

B1 C SS+

KEYBOARD

9 PIN MALE

=

IM30T A

A

B C 25

A B C

B C 25

25

21 10

R1 DISPLAY 1/5A

26

26

26

27

27

27

28 39 29

28 39 29

28 39 29

41 30 32 43 31

41 30 32 43 31

41 30 32 43 31

R2

IM30T FUNCTION

1/5A

42

42

42

33

33

33

1/5A

18

F46 F49 F50 F51 F50N F51N F51BF I2t = K

PROGR. INT.FAULT

R1

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

N/- 13

_

˜

˜

˜=

8 N.O. 18 20 N.C. 19 4 6

R3

R4

R2

5 15 17

R5 R3 R4

R5

In = 1A L/+ 12

IEC 255

˜ ˜ ˜

BT 2 50

44 In = 5A

11 22 N.C. 7 9 (10)

MICROP.

1/5A

KEYBOARD

(21) N.O.

16 RT

14

BIO

3 2 1

BIF C SS+

9 PIN MALE

34/38 23 24

Feeder Protection Relays • 3 Phase O/C & E/F relay with Highset + Auto Reclosure (Optional) • 3 Phase Directional O/C & E/F relay with Highset Salient Features • Display of various parameters, trip count & trip data on LCD screen • Separate LEDs for various fault indication • Built in self supervision & self testing feature • Wave form capturing • RS485 Port for serial communication with “MSCOM” user friendly software • Front RS232 Port for local programming

Model

MC20

MC30

Description Device Code Design Functions Available

3P O/C + E/F + Highset 51, 51N, 50, 50N, 49, 51BF Numeric Lowset O/C 2 Highset O/C Levels Lowset E/F 2 Highset E/F Levels Thermal image Breaker Failure protection Circuit Breaker control via Serial port Blocking Output and Blocking Input for pilot Wire selectivity coordination Time tagged multiple event recording Oscillographic wave form capture Accepts 3 Digital inputs Display LCD 16 (2 x 8) characters Time current curves selectable according to IEC/IEEE standards Password protection facility

Burden on CT Burden on PT Burden on Aux. Supply Operating Temp Weight Output Contacts Construction Dim Panel Cutout

3P O/C + E/F + Highset + Autoreclosing (Optional) 51, 51N, 50, 50N, 51BF, 79 (optional) Numeric Lowset O/C 2 Highset O/C Levels Lowset E/F 2 Highset E/F Levels Time current curves selectable according to IEC/IEEE standards Auto Reclose (In MC20-R) Breaker Failure protection Circuit Breaker control via serial port Blocking Output and Blocking Input for pilot wire selectivity coordination Time tagged multiple event recording Oscillographic wave form capture Accepts 3 Digital inputs Display LCD 16 (2 x 8) characters 3rd Harmonic Filter on the neutral input current Password protection facility 1 A or 5 A site selectable Display of parameters Built in supervision Modbus RTU / IEC870-5-103 Communication Protocols Front RS232 Port for Local Programming Oscillographic recording of input Quantities RS485 serial communication port on Back Panel 0.1 VA for 1 A, 0.3 VA for 5 A NA < 7 VA -100C to 550C < 1.5Kg 4 C/O Contacts Drawout 83 x 164 x 225 64 x 137

Aux. Supply Type 1 Type 2

24-110 V AC/DC 88-264 V AC/DC

Rating Other Features

1 A or 5 A site selectable Display of parameters Built in supervision Modbus RTU / IEC870-5-103 Communication Protocols Front RS232 Port for Local Programming Oscillographic recording of input Quantities RS485 serial communication port on Back Panel 0.1 VA for 1 A, 0.3 VA for 5 A NA < 7 VA -100C to 550C < 1.5Kg 4 C/O Contacts Drawout 83 x 164 x 225 64 x 137

Ordering Information 24-110 V AC/DC 88-264 V AC/DC

19

Wiring Diagrams

MC20 A B C

A B C 6

DISPLAY

6

7

R1

R1

16

16

MICROP.

1/5A

7 R2

MC20 4

5

8

R3

15

17 R3

9

9

BT 2

PROGR.

50

INT.FAULT

14

RELE’ DI USCITA

12

R3 R4

D3

20

D2

21

D1

19 22

DIGITAL INPUTS

D3

20

D2

21

D1

19 22

INGRESSI DIGITALI H L

In = □ 1A □ 5A lon = □ 1A □ 5A Auxiliary Supply Alimentazione Ausiliaria

RS232

11

C

C A (S+) B (S+)

10

3 2 1

RELE’ DI USCITA

DIGITAL INPUTS INGRESSI DIGITALI

13 12

TO I/0 RELAY EXPANSION ALL’ ESPANSIONE DI I/0

3

COMUNE COMUNE

2 1

RS485

RS485 A (S+) B (S-)

KEYBOARD TASTIERA

MS - SCE 1828 - R1

OUTPUT RELAYS

15

F51N 1/5A

18

13

R2

F50N

8

R4

R1

F51

OUTPUT RELAYS

14

F50

1/5A

5

17

FUNZIONI FUNCTIONS

4

R2

18

BPMC

MS - SCE 1828 - R1 Standard Output

MS - SCE 1839 - R2 I/O Output

MC30

DISPLAY

4 5

1/5A

MC30

6 7

1/5A

8 9

1/5A

FUNZION FUNCTIONS F50 F51 F50N F51N

1/5A

In=

1A

5A

AUXILIARY SUPPLY 10 11

R1

16

R1

16

R2

18

R2

OUTPUT 18 RELAYS 17 RELE 14 DI USCITA

MICROP.

R1

17 OUTPUT 14 RELAYS RELE 15 DI USCITA 13

R3 R4

R2

12

R3

D3 D2

R4

D1

20 DIGITAL 21 INPUTS 19 INCRESSI 22 DIGITAL

PROGR. INT.FAULT

RS232 KEYBOARD TASTIERA

C A (S+) B (S-)

3 2 1

R3

15 20 21 19 22

D3 D2 D1

L H C

RS485

A (S+) B (S-)

DIGITAL INPUT INGRESS DIGITAL

TO I/0 RELAY 13 EXPANSION 12 ALL ESPANSIONE DI I/0 3 COMUNE COMUNE 2 RS485 1

BPMC MS-SCE1895-R2 Standard Output

20

MS -SCE1924-R2 I/O Output

Feeder Protection Relays / Vector Shift Relay • 3 Phase Directional O/C & E/F relay with Highset • 3 Phase voltage and frequency relay with vector shift

FMR - Salient Features :• Display of various parameters, trip count & trip data on LCD screen • Separate LEDs for various fault indication • Built in self supervision & self testing feature • Wave form capturing • RS485 Port for serial communication with “MSCOM” user friendly software • Front RS232 Port for local programming

Model

FMR

UM30A

Description Device Code Design Functions Available

3 Phase V and F relay with vector shift 24, 27d/59d, 47, 59, 59Uo, 78, 81 Numeric Over Fluxing Two Levels of under / over voltage Two Levels of under / over frequency Zero seq. voltage Voltage unbalance Vector shift detection

Burden on CT Burden on PT Burden on Aux. Supply Operating Temp Weight Burden on Aux. Output Contacts Construction Dim Panel Cutout

Feeder Manager Relay 46, 49, 50/51, 67, 50N/51N, 67N, 27/59, 59UO, 74, 81, 86, 121, I2t Numeric Three levels for phase over current independently programmable as directional or non directional Three levels for Earth Fault independently programmable as directional or non directional Thermal image Selectable Time current curves according to IEC and IEEE standards Two over/under voltage levels Two over/under frequency levels Zero sequence over voltage level Two Negative Sequence current levels One Positive Sequence over voltage level One Negative Sequence undervoltage level Trip circuit supervision Associated Circuit Breaker control Breaker failure protection Breaker interruption energy 1 A or 5 A site selectable / 100-125 V PTI Graphical display 128 x 64 dots Display of V, I, PF, kW, kVA, kVAr and thermal status Modbus RTU / IEC870-5 Communication Protocols RS232 serial communication port on front face MIMIC diagram on LCD Oscillographic recording of input quantities RS485 serial communication port on Back Panel Phase 0.01 VA at In = 1 A; 0.2 VA at In = 5 A Neutral 0.01 VA at In = 1A; 0.2 VA at In = 5 A 0.1 VA at UN -100C to 550C < 2Kg < 10 VA 6 C/O Contacts Drawout 121 x 164 x 224 113 x 142

Aux. Supply Type 1 Type 2

20-110 V AC/DC or 88-264 V AC/DC

Rating Other Features

Display of Parameters Built in Self supervision RS485 Port

NA 0.2 VA / Phase at UN 8.5 VA 100C to 600C < 2kg 3 C/O+(1 N/O + 1 N/C)+separate relay 1 C/O for self supervision Draw out 121 x 158 x 224 113 x 142

Ordering Information 20-110 V AC / DC or 88-264 V AC / DC

21

Wiring Diagrams

FMR A B C

2

A B C

2

25 28

R1

3

3

4

4

5

5

6

6

7

7

8

8

9

9

41

41

42 43

42 43

44 45

44 45

46

46

47

47

48

ULTRA

15 14

Feeder Manager Relay

N.C 25

R4

33 POWER

R5

32

R2 TRIP

15 22 31

R3 R6 R4

ON

D1

12 25

D2

15

D3

25

R5 OFF R6

19

D4

38 + -

27 17

11

16

21 H L

FRONT-RS252

MS - SCE 1844-R3

BPU

34 37

ON

UM30A

25

A

R1

DISPLAY

26 MICROP. B

C

27

UM30A

28 39 29

FUNCTION

41 30

EA Uo

UC EC

UA UB

˜ ˜˜

BT 2 50

44

N/- 13

_

˜

˜

˜=

R2 R3

F27 / 59 F27d / 59d

R1

F59s F59U F81 F59 / 81

R3

PROGR. INT. FAULT

EB L/+ 12

KEYBOARD

R2

R4 R5

R4 R5 14 BI< BI> C SS+

9 PIN MALE

(21) 21 10 N.O. 11 22 N.C. 7 9 (10) 8 18 N.O. 20 19 N.C. 4 6 5 15 17 16 14 3 2 1 34/38 23 24

IEC 255

24(-20%) - 110(+20%)Vac 24(-20%) - 125(+20%)Vdc

22

N.O

34 R3

In = □ 1A □ 5A lon = □ 1A □ 5A Auxiliary Supply Alimentazione Ausiliaria

(25)

R1

48

Un = 230Vac MAX.

24 35

R2

Trip Oxi. sup.

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

DIGITAL INPUTS INGRESSI DIGITALI

Control & Supervision Relays • Power Management Relay • Multifunction 3 Phase Measuring Instrument Salient Features • Display of various parameters, event count & event data on 8 digit alphanumeric display • Separate LEDs for various fault indication • Four user programmable output relays • Built in self supervision & self testing feature help maintenance • Easy operation by 5 push buttons • RS485 Port for serial communication with “MSCOM” user friendly software

Model

MW33

SPM21

RRS

Description Device Code Design Functions Available

Power management 81, 27, 59, 32P, 32Q Numeric Frequence 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

Generator load sharing 95 Static Active / reactive power Over power Load sharing Frequency control

Other Features

Display of parameters MD recording & data logging RS485 Port, Event recording

Burden on CT Burden on PT Operating temp Weight Burden on Auxiliary supply Output Contacts Construction Dim W x H x D in mm Panel Cutout

O.2 VA for 5 A, 0.01 VA for 1 A 0.04 VA 100C to 600C < 2kg 8.5 VA max 5 C/O Draw out 121 x 158 x 224 113 x 142

Auto Synchronising Relay 25, 27 Numeric Auto Synchronising with Adjustable Voltage, Adjustable Frequency, Adjustable Phase angle Adjustable Reclose time, Bus Live / Dead operation, Speed Regular Control, Voltage Regulator Control, Digital inputs to monitor CB position 110V - 125 V PT input Display of Parameters, Built in self supervision, RS485 Port NA 0.04 VA 100C to 600C < 2kg 8.5 VA 5 C/O Draw out 121 x 158 x 224 113 x 142

Auxiliary supply Type 1 Type 2

20-110 V AC / DC 88-264 V AC / DC

110 V PT input 1 A / 5 A CT input

NA < 5 VA 100C to 600C < 1.5kg 8.5 VA 3 N/O Draw out 71 x 158 x 224 62 x 142

Ordering Information 20-110 V AC / DC or 88-264 V AC / DC

20-110 V AC / DC or 88-264 V AC / DC Upto 380 V AC 1A /5A

23

Wiring Diagrams

MW33 25 26

MICROP.

27 1/5A

28 39 29

1/5A

41

MW33

R2

FUNZIONI FINCTION

R3

F32 W

30

Un Un

In = 1A

32 43

Wh VARh

31 42 33

R4

R3 R4

R5

14 3 2

PROGR. R5 INT.FAULT

_

L/+12 L/- 13

Un = 100V

R1 R2

F32 VAR

44

In = 5A

21 (21) 10 11 N.O. 22 7 N.C. 9 8 (10) 18 20 N.O. 19 4 N.C. 6 5 15 17 16 14 3 2 1 34/38 23 24

R1

DISPLAY

1/5A

˜

˜˜

C SS+

KEYBOARD TASTIERA =

9 PIN MALE

IEC 255

SPM21

DISPLAY

R1

21 10

R2

11 22 7 9

F

R3

8 18 20

F

R4

19 4 6

U

R5

5 15 17

U

25 MICROP.

UG

26

SPM21 FUNCTION

29 UB

F25SX PROGR. INT. FAULT

30 41

G1

UG SPM21

52

R1

F+

R2

F-

R3

U+

R4

U-

R5

16

44

UB

L/+ 12

C SS+

KEYBORD

B.I. BR 52 (N.O.)

14 3 2 1

BX BR SX

34/38 23 24

9 PIN MALE

N/- 13

IEC 255

52 C

RRS

G

MEDIA AVERAGE

15

14 To other RRS Relays

R1

3

+

+

-

12 INCREASE 13

1

SETTINGS

4 VOIOCOS 7

T

Operation + R2

6

2 OPTO

8 9

+

OPTO R3

+ -

DECREASE

17 OVER POWER 18

Lood Shedding 22 2

24

1

(.)

(.)

Freq. control 21 11 10 3

1

2

Open Open Open Open

Open Open Open Open

Lood Shedding Yes Yes Yes Yes

3

Freq. control

Open Close

Yes No

Voltage and Frequency Relays • 3 Phase Voltage and frequency relay with df/dt & dv/dt • 1 Phase Voltage and frequency relay Salient Features • Display of various parameters, tripcount & trip data on LCD screen • Separate LEDs for individual fault indication • Built in self supervision & self testing feature • RS485 port for serial communication with “MSCOM” software • Easy operation by push buttons

Model Description Device Code Design Functions Available

Rating Other Features

UFD34

MC1V

MC3V

3 Ph Voltage and Frequency Relay 81, 27, 59, df/dt, dv/dt Numeric Selectable 4 stages of frequency as Under/ Over frequency Selectable 2 stages of voltage as Under/Over voltage Selectable 2 stages of df/dt Selectable 1 stages of de/dt Blocking Output and Blocking Input Time tagged multiple event recording

Single phase Voltage and Frequency Relay 27, 59, 81 Numeric Two Under Voltage elements Two Over Voltage elements One UnderFrequency element One OverFrequency element Blocking Output and Blocking Input Time tagged multiple event recording Oscillogarphic wave form capture Display LCD 16 (2 x 8) characters

3 Ph Voltage and Frequency Relay 27, 59, 47, 59 V 0, 81 Numeric Two Under Voltage elements Two Over Voltage elements One Under Frequency element One Over Frequency element One Zero Sequence Over Voltage Element One Negative Sequence Under Voltage Element One Positive Sequence Over Voltage Element Oscillographic wave form capture Modbus RTU / IEC870-5-103 Communication Protocols Display LCD 16 (2 x 8) characters

100-125 V Display of parameters Built in self supervision Oscillogarphic recording of input quantities RS485 serial communication port on Back Panel

100-125 V Display of parameters Built inSelf supervision Modbus RTU / IEC870-5-103 Communication Protocols Front RS232 Port for Local Programming Oscillogarphic recording of input quantities RS485 serial comunication port on Back Panel 0.1 VA for 1 A, 0.3 VA for 5 A NA -100C to 550C < 1.5Kg < 7 VA 4 C/O Contacts + 1 C/O for Self supervision Drawout 83 x 164 x 224 64 x 137

100-125 V Display of parameters Built in self supervision Modbus RTU / IEC870-5-103 Communication Protocols Front RS232 Port for Local Programming Oscillogarphic recording of input quantities RS485 serial communication port on Back Panel 0.1 VA for 1 A, 0.3 VA for 5 A NA -100C to 550C < 1.5Kg < 7 VA 4 C/O Contacts + 1 C/O for Self supervision Drawout 83 x 164 x 224 64 x 137

Burden on CT Burden on PT Operating temp Weight BurdenonAuxiliary Output Contacts

Not Applicable 0.04 VA -100C to 600C < 2.5Kg 8.5 VA 4 C/O Contacts + 1 C/O for Self supervision Construction Drawout Dim W x H x D in mm 121 x 164 x 224 Panel Cutout 113 x 142

Ordering Information Auxiliary Supply

20-110 V AC/DC or 88-264 V AC/DC

20-110 V AC/DC or 88-264 V AC/DC

20-110 V AC/DC or 88-264 V AC/DC

25

Wiring Diagrams

UFD34

25

A

26

28 39 29

C

FUNCTION F81 - 1

41 30

IEC 255

N/- 13

_

˜

˜

˜

R3

8 18 20

R4

19 4 6

R5

5 15 17

R1

F81 - 2

L/+ 12

R2

UFD34

R2

F81 - 3 F81 - 4

R3

Fdf / dt F27 / 59

R4

PROGR. INT. FAULT

R5

N.O.

11 22 7 9

MICROP.

27

B

(21)

21 10

R1

DISPLAY

C SS+

=

N.O. N.C.

16 14 3 2 1 34/38 23 24

14 BI< BI>

KEYBOARD

N.C. (10)

9 PIN MALE

MC1V

DISPLAY

R1

R1

16

16

MICROP.

5

1F27 2F27 1F59

R3

R4

PROGR.

20 DIGITAL 21 INPUTS

D3 D2

R4

R3

14

RELE’ DI USCITA

12

2F59

INT.FAULT

17

D3

20

D2

21

D1

19

11

C

C A (S+) B (S-)

RS232

3 2 1

INGRESSI DIGITALI

13 12

TO I/0 RELAY EXPANSION ALL ESPANSIONE DI I/0

3

COMUNE COMUNE

2 1

RS485

RS485 A (S+) B (S-)

KEYBOARD TASTIERA MS - SCE 1836 - R2

DIGITAL INPUTS

22

19 INGRESSI DIGITALI 22

D1

10

RELE’ DI USCITA

15

H L

Auxiliary Supply Alimentazione Ausiliaria

OUTPUT RELAYS

13

R2

R3

OUTPUT RELAYS

14 15

R1

18

18 17

FUNZIONI FUNCTIONS

4

R2

R2

MC1V

BPMC

MS - SCE 1836 - R2 Standard Output

MS - SCE 1837 - R2 I/O Output

MC3V

DISPLAY

4

A

R1

16

R1

16

R2

18

OUTPUT RELAYS

R3

17 14

RELE’ DI USCITA

MICROP.

5

MC3V

6

B

FUNZIONI FUNCTIONS

7

F27 F47

9

F27d F59d

15 R1

R4

R4

PROGR.

UB

RELE’ DI USCITA

12

R2

R3

OUTPUT RELAYS

D3

20

D2

21

DIGITAL INPUTS

D1

19 22

INGRESSI DIGITALI

D3

20

D2

21

D1

19 22

INGRESSI DIGITALI

13 12

TO I/0 RELAY EXPANSION ALL ESPANSIONE DI I/0

C

3

COMUNE COMUNE

A (S+)

2 1

RS485

L H

R5

EB

Auxiliary Supply Alimentazione Ausiliaria

10 RS232 11

C A (S+) B (S-)

3 2 1

RS485

KEYBOARD TASTIERA MS - SCE 1834 - R1

B (S-)

DIGITAL INPUTS

BPMC

MS - SCE 1834 - R1 Standard Output

26

15

13

UA INT.FAULT

EC

17 14

F59

EA UC

18

R3

F24

8

C

R2

MS - SCE 1835 - R1 I/O Output

MD32TM

MD32G

MG30/ MG30I

scheme - 2

scheme - 1

MPR300

MC61A/MC61C

MC12/ME12

SC14S

G2

UFD34, UM30

G1

MRP11

MV12

SPM21

SCM21

MV12/MC3V

MC31A/MC61A MC61C/FMR

MC61A/ MC61C

MV12/MC3V

scheme - 1

Motor

scheme - 2

Motor

MM30/ MCOMP

RPM8/ RPM14

APFC Panel

Schematic - Relay Application

27

Electrical Standard Products (ESP) Branch Offices: REGISTERED OFFICE AND HEAD OFFICE L&T House, Ballard Estate P. O. Box 278 Mumbai 400 001 Tel: 022-67525656 Fax: 022-67525858 Website: www.Larsentoubro.com ELECTRICAL STANDARD PRODUCTS (ESP) 501, Sakar Complex I Opp. Gandhigram Rly. Station Ashram Road Ahmedabad 380 009 Tel: 079-66304006-11 Fax: 079-66304025 e-mail: [email protected] 38, Cubbon Road, P. O. Box 5098 Bangalore 560 001 Tel: 080-25020100 / 25020324 Fax: 080-25580525 e-mail: [email protected] 131/1, Zone II Maharana Pratap Nagar Bhopal 462 011 Tel: 0755-4098721 / 7 / 8 / 9 Fax: 0755-2769264 e-mail: [email protected] Plot No. 559, Annapurna Complex Lewis Road Bhubaneswar 751 014 Tel: 0674-6451342, 2436696 Fax: 0674-2537309 e-mail: [email protected] SCO 32, Sector 26-D Madhya Marg, P. O. Box 14 Chandigarh 160 026 Tel: 0172-4646840, 4646853 Fax: 0172-4646802 e-mail: [email protected] 10, Club House Road, Annasalai Chennai 600 002 Tel: 044-28462072 / 4 / 5 / 2109 Fax: 044-28462102 / 3 e-mail: [email protected] 67, Appuswamy Road Post Bag 7156 Opp. Nirmala College Coimbatore 641 045 Tel: 0422-2588120 / 1 / 5 Fax: 0422-2588148 e-mail: [email protected]

L&T House, Group MIG-5 Padmanabhpur Durg 491 001 Tel: 0788-2213833 / 14 / 21 / 29 Fax: 0788-2213820 e-mail: [email protected]

No: 73, Karpaga Nagar, 8th Street K. Pudur Madurai 625 007 Tel: 0452-2537404, 2521068 Fax: 0452-2537552 e-mail: [email protected]

Khairasol, Degaul Avenue Durgapur 713 212 Tel: 2559848, 2559849, 2559844 Fax: 0343-2553614 e-mail: [email protected]

EBG North Wing Office-Level 2 Gate 7, Powai Campus Mumbai 400 072 Tel: 022-67052874 / 2737 / 1156 Fax: 022-67051112 e-mail: [email protected]

Milanpur Road, Bamuni Maidan Guwahati 781 021 Tel: 0361-2550562 / 65 Fax: 0361-2551308 e-mail: [email protected] II Floor, Vasantha Chambers 5-10-173, Fateh Maidan Road Hyderabad 500 004 Tel: 040-67015052 Fax: 040-23296468 e-mail: [email protected] Monarch Building, 1st Floor D-236 & 237, Amrapali Road Vaishali Nagar Jaipur 302 021 Tel: 0141-4385914 / 18 Fax: 0141-4385925 e-mail: [email protected] Akashdeep Plaza, 2nd Floor P. O. Golmuri Jamshedpur 831 003 Jharkhand Tel: 0657-2312205 / 38 Fax: 0657-2341250 e-mail: [email protected] Skybright Bldg; M. G. Road Ravipuram Junction, Ernakulam Kochi 682 016 Tel: 0484-4409420 / 4 / 5 / 7 Fax: 0484-4409426 e-mail: [email protected] 3-B, Shakespeare Sarani Kolkata 700 071 Tel: 033-44002572 / 3 / 4 Fax: 033-22821025 / 7587 e-mail: [email protected] A28, Indira Nagar, Faizabad Road Lucknow 226 016 Tel: 0522-2312904 / 5 / 6 Fax: 0522-2311671 e-mail: [email protected]

12, Shivaji Nagar North Ambazari Road Nagpur 440 010 Tel: 0712-2260012 / 3 Fax: 0712-2260020 / 30 e-mail: [email protected] 32, Shivaji Marg P. O. Box 6223 New Delhi 110 015 Tel: 011-41419514 / 5 / 6 Fax: 011-41419600 e-mail: [email protected] L&T House P. O. Box 119 191/1, Dhole Patil Road Pune 411 001 Tel: 020-26135048 / 26164048 Fax: 020-26124910, 26135048 e-mail: [email protected] 3rd Floor Vishwakarma Chambers Majura Gate, Ring Road Surat 395 002 Tel: 0261-2473726 Fax: 0261-2477078 e-mail: [email protected] Radhadaya Complex Old Padra Road Near Charotar Society Vadodara 390 007 Tel: 0265-6613610 / 1 / 2 Fax: 0265-2336184 e-mail: [email protected] 48-8-16, Dwarakanagar Visakhapatnam 530 016 Tel: 0891-6620411-2 / 3 Fax: 0891-6620416 e-mail: [email protected]

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

Larsen & Toubro Limited Electrical Standard Products Powai Campus, Mumbai 400 072 Customer Interaction Center (CIC) BSNL / MTNL (toll free) : 1800 233 5858 Reliance (toll free) : 1800 200 5858 Tel : 022 6774 5858, Fax : 022 6774 5859 E-mail : [email protected] Website : www.LNTEBG.com

SP 50297-R1

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