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

Section 3
REF615 standard configurations
3.5.3.4
124
TRPPTRC1_86/94-1_TRIP
TRPPTRC2_86/94-2_TRIP
X110_BI3_CB_OPEN
GUID-1F80DC73-AC36-40F2-B36F-91932BB9F7BD V1 EN
Figure 140: Logic for blocking of trip circuit supervision

Functional diagrams for control and interlocking

The main purpose of the synchronism and energizing check SECRSYN1 is to provide
control over the closing of the circuit breakers in power networks to prevent the closing,
if the conditions for synchronism are not detected. The energizing function allows closing,
for example, when one side of the breaker is dead.
GUID-B440D451-BFF7-4ED4-B17C-D5F63770AB0E V1 EN
Figure 141: Synchronism and energizing check
The circuit breaker closing is enabled when the ENA_CLOSE input is activated. The input
can be activated by the configuration logic, which is a combination of the disconnector or
breaker truck and ground switch position status, status of the trip logics, gas pressure
alarm and circuit-breaker spring charging status.
The OKPOS output from DCSXSWI defines whether disconnector or breaker truck is
either open (in test position) or close (in service position). This output, together with the
open ground switch and non-active trip signals, activates the close-enable signal to the
circuit breaker control function block. The open operation for circuit breaker is always
enabled.
The SYNC_ITL_BYP 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. SYNC_ITL_BYP
overrides, for example, active interlocking conditions when the circuit breaker truck is
closed in service position.
OR6
B1 O
B2
B3
B4
B5
B6
O:109|T:2.5|I:36
SECRSYN1
BLOCK SYNC_INPRO
CL_COMMAND SYNC_OK
BYPASS CL_FAIL_AL
CMD_FAIL_AL
LLDB
LLLB
DLLB
DLDB
O:157|T:5|I:1
1MAC109016-MB C
TCSSCBR_BLOCKING
REF615 ANSI
Application Manual