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OR6
B1
B2
B3
B4
B5
B6
O
TRPPTRC2_TRIP
X120_BI3_CB_OPENED
TRPPTRC1_TRIP
TCSSCBR_BLOCKING
GUID-75C22AA4-4F3D-4F1E-9E7F-82C1AB76D23F V1 EN
Figure 357:
Logic for blocking of trip circuit supervision
3.10.3.4
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 the 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 the 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 block in case of 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-1054A5E9-E611-4D4B-82B5-5FD0AFE8CF66 V1 EN
Figure 358:
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
POSOPEN
POSCLOSE
OPENPOS
CLOSEPOS
OKPOS
DCSXSWI1_OKPOS
X110_BI6_CB_TRUCK_IN_TEST
X110_BI5_CB_TRUCK_IN_SERVICE
GUID-A84A3976-BDA8-4343-96F1-1E436AF74BBE V1 EN
Figure 359:
Disconnector control logic
1MRS756378 S
Section 3
REF615 standard configurations
REF615
247
Application Manual
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