MiCOM Substation Applications

MiCOM Substation / Feeder Applications

The MiCOM range of relays offers varying levels of functionality and hardware options to best suit the protection requirements and allows the customer to choose the most cost effective solution for their application.

The versatile hardware allows for application in many installations and a common relay management software (MiCOM S1 Studio) makes for easy configuration and application.

Basic Feeder Protection Relays — MiCOM 10 and 20 Series

The 10 and 20 series hardware platforms are the building blocks of the MiCOM protection relay range providing the capability for a wide variety of protection, control, measurement, monitoring and communication functions.

The MiCOM P11x relays are suitable for all the applications where overcurrent and/or ground fault protection are required. P11x can be applied to medium and low voltage electrical systems as an optimized and cost-efficient solution tailored to user’s needs.

MiCOM P120, P121, P122 and P123 relays provide comprehensive overcurrent phase and ground fault protection for utilities networks, industrial plants and networks as well as for other applications where overcurrent protection is required. The ground fault protection is sensitive enough to be applied in electrical networks where the ground fault current is low.

Standard and Advanced Feeder Protection Relays — MiCOM 30 and 40 Series

  • Easergy MiCOM P132 offers a flexible and powerful feeder management device housed in a 4U case in 24TE, 40TE or 84TE widths. Easergy MiCOM P132 offers bay control for up to 3 devices and a library of 80 pre-engineered templates to reduce engineering time.

  • Easergy MiCOM P139 one-box solution is the most advanced in the range. It’s available in 40TE or 84TE width, 4U case sizes. It offers bay control for up to 10 devices. It uses a pre-engineered library of up to 300 templates for efficient engineering and commissioning.

  • Easergy MiCOM P14x Feeder Management and Overcurrent Protective Relays are especially suitable where a complete or advanced power system protection scheme solution is required.

The following models are available:

  • Easergy MiCOM P141 – Feeder management relay

  • Easergy MiCOM P142 – Feeder management with integrated Autoreclose

  • Easergy MiCOM P143 – Feeder management, integrated Autoreclose and Check Synchronism

  • Easergy MiCOM P145 – Feeder management, Autoreclose, Check Synchronism and Enhanced operator control functions

Functions of Feeder Management Relays

ANSI

Protection Function

P111

P115

P116

P120

P121

P122

P123

P125

P126

P127

P132

P139

P141

P142

P143

P145

25

Check synchronizing

                   

   

32

Directional power

                 

32V

Voltage controlled direct. reactive power

                   

       

34

Master sequence device

                     

       

37

Undercurrent

   

   

 

46

Negative sequence overcurrent

   

   

 

46BC

Broken conductor

   

   

 

47

Negative sequence over voltage

                 

48

Incomplete sequence relay

                   

       

49

Thermal overload

 

   

 

50/51N

Ground fault

 

50/51P

3 Phase overcurrent

 

 

50/51P/N

1 Phase or ground overcurrent

     

     

   

       

50BF

Circuit breaker failure

   

 

51LR

Motor

                   

       

51V

Voltage controlled overcurrent

                 

59/27

Over / Under voltage

                 

59N

Residual over voltage

             

64

Restricted ground fault

     

66

Startup monitoring

                   

       

67N

Ground fault directional

             

67N

Transient ground fault detection

                   

       

67N

Sensitive directional ground fault

                   

67P

Phase directional

                 

67W

Wattmetric ground fault

             

79

Autoreclose

   

     

 

 

81

Under / Over frequency

                 

81P

Under frequency load shedding

                   

       

81R

Rate of change of frequency

                 

85

Protective signaling

                   

       

86

Lock-out

CTS

Current transformer supervision

                 

SOTF

Switch on to fault

 

     

 

TCS

Trip circuit supervision

 

   

 

VTS

Voltage transformer supervision

                 

YN

Neutral admittance

                 

 

Circuit breaker monitoring

 

   

 

Cold load pick-up

 

   

 

Inrush blocking

 

   

   

InterMiCOM

                   

Limit value monitoring

                   

       

Typical Catalog Numbers

Catalog Numbers

Description

Basic

P123A00Z412EC0

Series 20 - Substation/Feeder Protection, P123 (24-250Vdc & 48-240Vac), 1/5A CT inputs, 5In/8Out (24-250 Vdc, 24-240Vac), RS485, DNP3

Standard

P14121RABM0B48L

Series 40 - Substation/Feeder Protection, P141 (48-110Vdc), 1/5A CT inputs, 8In/7Out (user configurable voltage thresholds), 3xRJ-45, IEC61850, DNP3

Advanced

P14521RHBM0B48M

Series 40 - Substation/Feeder Protection, P141 (48-110Vdc), 1/5A CT inputs, 16In/20Out (user configurable voltage thresholds), 4 high break outputs, 3xRJ-45, IEC61850, DNP3

Was this helpful?