Secondary System Supervision; Breaker Close/Trip Circuit Monitoring Tcsscbr; Identification; Application - ABB Relion 650 Series Applications Manual

1MRK 504 124-UEN B
Section 11
11.1

Breaker close/trip circuit monitoring TCSSCBR

11.1.1

Identification

Function description
Breaker close/trip circuit monitoring
11.1.2

Application

TCSSCBR detects faults in the electrical control circuit of the circuit breaker. The function can
supervise both open and closed coil circuits. This kind of supervision is necessary to find out
the vitality of the control circuits continuously.
GUID-B056E9DB-E3E5-4300-9150-45916F485CA7 V1 EN-US
Figure 84: Operating principle of the trip-circuit supervision with an external resistor.
Transformer protection RET650
Application manual

Secondary system supervision

IEC 61850
identification
TCSSCBR
Trip circuit supervision generates a current of approximately 1.0 mA through
the supervised circuit. It must be ensured that this current will not cause a latch
up of the controlled object.
To protect the trip circuit supervision circuits in the IED, the output contacts
are provided with parallel transient voltage suppressors. The breakdown
voltage of these suppressors is 400 +/– 20 V DC.
The TCSSCBR blocking switch is not required since the external resistor is
used.
© Copyright 2011 ABB Power Grids. All rights reserved
Secondary system supervision
GUID-6D9DE533-EC57-4517-955E-075851E1C89A v1
GUID-C6367ACC-A594-4C2C-B75A-8A62387117BB v5
IEC 60617 ANSI/IEEE C37.2
identification device number
- -
GUID-D28727C2-FF93-4E3A-BD92-9B85D1F653DC v9.1.1
Section 11
165