ABB relion REF615 Applications Manual page 318

Section 3
REF615 standard configurations
312
BLOCK_SECRSYN1
X110_BI2_LINE_VT_MCB_OPEN
X110_BI1_BUS_VT_MCB_OPEN
GUID-AC5A98E3-6E38-4375-A1F0-D1BAAB2EF652 V1 EN
Figure 475: Synchrocheck function
Two types of disconnector and earthing switch function blocks are available.
DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 and
ESXSWI1 are controllable type. By default, the status only blocks are connected in
standard configuration. The disconnector (CB truck) and line side earthing switch
status information is connected to DCSXSWI1 and ESSXSI1.
X110_BI6_CB_TRUCK_IN_TEST
X110_BI5_CB_TRUCK_IN_SERVICE
GUID-64E418EC-C238-4803-ABDE-873BECA27B1B V1 EN
Figure 476: Disconnector control logic
X110_BI8_ES1_OPENED
X110_BI7_ES1_CLOSED
GUID-E115D13F-E322-49D5-BF4D-C4ADE480305D V1 EN
Figure 477: Earthing switch control logic
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 earth-switch position status, status of the trip logics,
gas pressure alarm, circuit-breaker spring charging and synchronizing ok status.
The OKPOS output from DCSXSWI defines if the disconnector or breaker truck is
definitely either open (in test position) or close (in service position). This output,
together with the open earth-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.
SECRSYN1
BLOCK SYNC_INPRO
CL_COMMAND SYNC_OK
BYPASS CL_FAIL_AL
CMD_FAIL_AL
LLDB
LLLB
DLLB
DLDB
OR
B1 O
B2
DCSXSWI1
POSOPEN OPENPOS
POSCLOSE CLOSEPOS
OKPOS
ESSXSWI1
POSOPEN OPENPOS
POSCLOSE CLOSEPOS
OKPOS
1MRS756378 S
SECRSYN1_SYNC_INPRO
SECRSYN1_SYNC_OK
SECRSYN1_CL_FAIL_AL
SECRSYN1_CMD_FAIL_AL
BLOCK_SECRSYN1
DCSXSWI1_OKPOS
ESSXSWI1_OPENPOS
REF615
Application Manual