Functional Diagrams For Control And Interlocking - ABB RELION 615 Series Applications Manual

Section 3
REF615 standard configurations
3.7.3.4
186
considered as the potential voltage sources. In this case, the input logic to CB_CLOSED
of SEQRFUF1_60-1 for bus 1 should be
(M1_52a OR MT1_52a OR (TIE1_52a AND TIE2_52a)).
Similarly for SEQRFUF2 for bus 2, it is (M2_52a OR MT2_52a
OR (TIE1_52a AND TIE2_52a)).
If it is convenient and the binary inputs are available, all the necessary breaker close
positions can be wired to the relay. The other option is to use GOOSE to reduce the wiring
connections. Usually all the breakers connected to the same bus are located in the same
location, it would be easy to set up the GOOSE communication between the relays that
control individual breaker respectively.

Functional diagrams for control and interlocking

The circuit breaker closing is enabled when the ENA_CLOSE input is activated. The input
can be activated by the configuration logic, which is for example a combination of the
disconnector or breaker truck and ground switch position status and the status of the
Master Trip logics and gas pressure alarm and circuit-breaker spring charging. With the
present configuration, the activation of ENA_CLOSE input is configured using only
Master Trip logic TRPPTRC1_86/94-1 and TRPPTRC2_86/94-2, that is, the circuit
breaker cannot be closed in case master trip is active.
The ITL_BYPASS input can be used, for example, to always enable the closing of the
circuit breaker when the circuit breaker truck is in the test position, despite of the
interlocking conditions being active when the circuit breaker truck is closed in service
position.
1MAC109016-MB C
REF615 ANSI
Application Manual