OR6
B1
B2
B3
B4
B5
B6
O
TRPPTRC2_TRIP
X120_BI3_CB_OPENED
TRPPTRC1_TRIP TCSSCBR_BLOCKING
GUID-8E139357-424E-400B-A463-137229E9B0DC V1 EN
Figure 417: Logic for blocking trip circuit supervision
3.11.3.4 Functional diagrams for control and interlocking
The main purpose of the synchronism and energizing check SECRSYN is to provide
control over the closing of the circuit breakers in power networks to prevent the
closing, if conditions for synchronism are not detected. The energizing function
allows closing, for example, when one side of the breaker is dead.
SECRSYN measures the bus and line voltages and compares them to set conditions.
When all the measured quantities are within set limits, the output SYNC_OK is
activated for allowing closing or closing the circuit breaker. The SYNC_OK output
signal of SECRSYN is connected to ENA_CLOSE input of CBXCBR through control
logic. The function is blocked in case if line side or bus side MCB is open.
SECRSYN1
BLOCK
CL_COMMAND
BYPASS
SYNC_INPRO
SYNC_OK
CL_FAIL_AL
CMD_FAIL_AL
LLDB
LLLB
DLLB
DLDB
SECRSYN1_SYNC_OK
BLOCK_SECRSYN1 SECRSYN1_SYNC_INPRO
SECRSYN1_CL_FAIL_AL
SECRSYN1_CMD_FAIL_AL
OR
B1
B2
O
X110_BI1_BUS_VT_MCB_OPEN
X110_BI2_LINE_VT_MCB_OPEN BLOCK_SECRSYN1
GUID-48E8F4CC-1F3E-43F5-AC2A-FBB39A7AF789 V1 EN
Figure 418: 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.
DCSXSWI1
POSOP EN
POSCLOSE
OPENPOS
CLOSEPOS
OKPOS
DCSXSWI1_OKPOS
X110_BI6_CB_TRUCK_IN_TEST
X110_BI5_CB_TRUCK_IN_SERVICE
GUID-4A1CF602-2F56-469C-9893-BDC9F793FA03 V1 EN
Figure 419: Disconnector control logic
1MRS756378 S Section 3
REF615 standard configurations
REF615 279
Application Manual
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