Connect the higher-priority conditions before enabling the closing of
circuit breaker. These conditions cannot be bypassed with bypass
feature of the function.
OR6
B1
B2
B3
B4
B5
B6
O
CBXCBR1_BLK_CLOSET1PTTR1_BLK_CLOSE
GUID-ADBC0393-0928-425B-BD65-5AC7F54440EA V1 EN
Figure 543: Circuit breaker close blocking logic
The configuration includes logic for generating circuit breaker external closing and
opening command with the IED in local or remote mode.
Check the logic for the external circuit breaker closing command and
modify it according to the application.
Connect the additional signal for closing and opening of circuit
breaker in local or remote mode if applicable for the configuration.
AND
B1
B2
O
AND
B1
B2
O
OR
B1
B2
O
FALSE
FALSE
CBXCBR1_AU_CLOSE
CONTROL_LOCAL
CONTROL_REMOTE
GUID-3C821932-5AE1-49F7-9179-4414221BC7A8 V1 EN
Figure 544: External closing command for circuit breaker
AND
B1
B2
O
AND
B1
B2
O
OR
B1
B2
O
FALSE
FALSE
CBXBCR1_AU_OPEN
CONTROL_LOCAL
CONTROL_REMOTE
GUID-7BBD30FE-55C8-4869-8680-91BFF424703E V1 EN
Figure 545: External opening command for circuit breaker
3.13.3.5 Functional diagrams for measurement functions
The phase current inputs to the IED are measured by the three-phase current
measurement function CMMXU1. The three phase current input is connected to the
X131, X132 and X133 card in the back panel for three phases. The sequence current
measurement CSMSQI1 measures the sequence current and the residual current
1MRS756378 S Section 3
REF615 standard configurations
REF615 347
Application Manual
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