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GUID-E7EAE99F-92BC-4192-B485-EB1677BA407D V1 EN
Figure 28:
Trip circuit supervision
Two separate trip circuit supervision functions are included, TCSSCBR1 for PO3
(X100:15-19) for Master trip and TCSSCBR2 for PO4 (X100:20-24) for circuit
breaker closing. The trip circuit supervision 1 is blocked by the Master Trip
(TRPPTRC1) and the circuit-breaker open position signal. The trip circuit
supervision 2 is blocked by the circuit breaker closed position signal. The trip
circuit supervision alarm indication is connected to LED 9.
The fuse failure supervision SEQRFUF1 detects failures in voltage measurement
circuits. Failures, such as open miniature circuit breaker, are detected and the alarm
is connected to supervision alarm LED 9.
Failures in current measuring circuits are detected by CCRDIF. The alarm signal is
connected to the supervision alarm LED 9.
3.5.3.3
Functional diagrams for control and interlocking
1MRS757054 A
Section 3
REU615 standard configurations
REU615
53
Application Manual