Breaker Control And Trip Command Operation; Trip Circuit Supervision - ABB Relion 605 Series Applications Manual

Section 4
Protection and Control Function
4.18
4.19
42

Breaker control and Trip command operation

Relay supports breaker control operation. The control operation can be done from
control push-buttons provided on relay front, from remote via MODBUS
communication or from signals wired to relay binary inputs duly configured for
control operation.

Trip Circuit Supervision

Application
The Trip Circuit Supervision TCS detects faults in the electrical trip / open control
circuit (which includes trip coil, trip contact, wiring and auxiliary voltage) of
circuit. It can supervise trip circuit in breaker open as well as breaker close
condition.
It is possible to enable/disable TCS functionality through configuration parameter.
For the TCS functionality the BI2 need to be connected in parallel to the trip output
BO2 as shown in the figure below. Additionally the BI2 need to be configured for
the TCS functionally.
Figure 8: Application diagram of TCS function
When the circuit breaker is open, TCS measure the voltage across the trip contact
through Rext (external shunt resistance shown in below figure) and trip coil. When
the circuit breaker is close, TCS measure the voltage across the trip contact through
CB internal contact and trip coil. Below table shows the specification for the Rext
for the TCS circuit.
Table 25: TCS functionality specification
Description
Auxiliary voltage range
Current drain through the supervision circuit
Minimum voltage over the TCS contact
Operating voltage Vaux
48 V DC
60 V DC
110 V DC
220 V DC
1MDU07212-YN Rev. D
Value
48-250V AC/DC
~1.5 mA
20 V AC/DC
Recommended shunt resistor R
1.2 kΩ, 5 W
5.6 kΩ, 5 W
22 kΩ, 5 W
33 kΩ, 5 W
REF601 / REJ601 / REM601
Application Manual
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