ABB RELION 615 Series Applications Manual page 127

1MRS758272 B
REG615
Application Manual
activated for closing the circuit breaker or allowing the closing. The
SECRSYN1_SYNC_OK output signal of SECRSYN is connected to SYNC_OK input
of CBXCBR through control logic. The function is blocked in case of terminal side or
bus side MCB is open.
BLOCK_SECRSYN1
X110_BI1_TERMINAL_VT_MCB_OPEN
X110_BI2_BUSBARL_VT_MCB_OPEN
GUID-977A6818-D24D-4581-B22A-4B3CC3832EC7 V2 EN
Figure 165: 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 a
standard configuration. The disconnector (CB truck) and line side earthing switch
status information is connected to DCSXSWI1 and ESSXSI1.
X110_BI4_CB_TRUCK_IN_TEST
X110_BI3_CB_TRUCK_IN_SERVICE
GUID-274D93AD-13B5-4FCC-997E-3B0D95776E14 V2 EN
Figure 166: Disconnector control logic
X110_BI6_ES1_OPENED
X110_BI5_ES1_CLOSED
GUID-9872F266-126F-43DF-8899-DA437E9AA124 V2 EN
Figure 167: Earth switch control logic
The circuit breaker closing is disabled by default, as in case of generator, the closing
of the circuit breaker is done by a special synchronizer device.
The OKPOS output from DCSXSWI defines whether the disconnector or breaker
truck is open (in test position) or closed (in service position). This output, together
with the open earth switch and non-active trip signals, activates the signal enabling
closing to the circuit breaker control function block. The open operation for circuit
breaker is always enabled.
REG615 standard configurations
SECRSYN1
BLOCK SYNC_INPRO
CL_COMMAND SYNC_OK
BYPASS CL_FAIL_AL
CMD_FAIL_AL
LLDB
LLLB
DLLB
DLDB
OR6
B1 O
B2
B3
B4
B5
B6
DCSXSWI1
POSOPEN
POSCLOSE
ESSXSWI1
POSOPEN
OPENPOS
POSCLOSE CLOSEPOS
Section 3
SECRSYN1_SYNC_OK
BLOCK_SECRSYN1
OPENPOS
CLOSEPOS
OKPOS
OKPOS
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