MiCOM Motor Applications

MiCOM Motor Applications

The MiCOM 10, 20, 30 and 40 series protection relays are designed for various motor protection applications.

Basic Motor Protection Relay (MiCOM P 10 and 20 Series Relays)

The MiCOM P211 and P22x protection relay range are particularly adapted to oil refinery, chemical plant, metallurgy, glass and cement manufacturing, paper mills, electrical and mechanical engineering, food production, mining etc. It is also suitable for water treatment and in pumping stations as well as in steam power plants.

MiCOM P22x range of protection relays is designed for motor protection applications and includes a complete set of protection functions. Models available: MiCOM P220 MiCOM P225

A complete set of protection functions is performed on the measurement of current, voltage and temperature.

In addition to above basic functions, the relay carries out a large number of other functions that enable it to protect and run the motor more effectively.

Advanced Motor Protection Relay (MiCOM P 30 and 40 Series Relays)

Easergy™ MiCOM P24x relays offer advanced protection, control and monitoring of motors and rotating machines. Models available: MiCOM P241, MiCOM P242, MiCOM P243

Easergy™ MiCOM P24x comprehensive protection package includes 87 differential protection and optimization of thermal image monitoring for machines.

These relays not only improve monitoring conditions, but they also facilitate machine maintenance and save on wiring costs.

Functions available for the different models of the Motor protection MiCOM range of relays

ANSI

Protection Function

P211

P220

P225

P130C

P132

P139

P241

P242

P243

14

Speed switch input

 

 

25

Check synchronizing

       

     

27LV

Reacceleration

 

30/46/86

Unbalance / Lock out

 

32L/O/R

Directional power

     

     

32R

Reverse power

     

37

Loss of load

37

Undercurrent

 

38/49

Thermal overload

40

Loss of field

           

46

negative sequence overcurrent

 

47

Negative sequence over voltage

     

47N

Neutral over voltage

     

     

50/51P

Phase overcurrent

50BF

Circuit breaker failure

   

50N/51N

Ground fault

50S/51LR/51S

Locked rotor

55

Out of step

           

59/27

Under / Over voltage

   

59N

Residual over voltage

     

64N/32N

Wattmetric ground fault

     

66/48/51

Startup monitoring

67N

Ground fault directional

     

     

67N

Sensitive directional ground fault

     

67P

Phase directional

     

     

81O

Over frequency

     

     

81U

Under frequency

     

81R

Rate of change frequency

     

     

87M

Motor differential

               

CTS

Current transformer supervision

 

TCS

Trip current supervision

 

VTS

Voltage transformer supervision

     

 

anti backspin

   

     

 

Circuit breaker monitoring

 

 

Typical Catalog Numbers

Catalog Number

Description

Basic

P225CA0Z112A0CB

Series 20 - Motor Protection, P225 (24-250Vdc & 48-240Vac), 1/5A CT inputs, 6In/5Out (24-250 Vdc, 24-240Vac), 10 RTD's, RS485, Modbus

Standard

P24121RB6M0D18L

Series 40 - Motor Protection, P241 (48-110Vdc), 1/5A CT inputs, 8In/7Out (user configurable voltage thresholds), 10 RTD's, 3xRJ-45, IEC61850

Advanced

P24321RB6M0D08M

Series 40 - Differential Motor Protection, P243 (48-110Vdc), 1/5A CT inputs, 16In/16Out (user configurable voltage thresholds), 10 RTD's, 3xRJ-45, IEC61850

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