11.6.11.7
Interlock, one and a half circuit breaker line A
Test/Function status/Control/Apparatus control/Interl 1 1/2CBLineA/ILx
Displays 19 measurements per breaker arrangement (instances of ILx). The
measurements show the states of the various disconnectors, breakers and earthing
switches.
11.6.11.8
Interlock one and a half circuit breaker line B
Test/Function status/Control/Apparatus control/Interl11/2CBLineB/IMx
Displays 19 measurements per arrangement (instance of IM) showing conditions for
breakers, disconnectors and earthing switches in the arrangement. For example
QA1CLREL with boolean output 1 means that the closing of breaker QA1 is
permitted. (REL=release, ITL=interlock, OPTR=opened transmission,
CLTR=closed transmission)
11.6.11.9
Interlock, double circuit breaker bus A
Test/Function status/Control/Apparatus control/InterlDoubleCBBusA
The outputs from this function show when closing of disconnectors and breakers is
allowed and when it is not. It also shows whether QB1 is opened or closed and
indicates the validity of its switch status. There are 13 output values.
11.6.11.10
Interlock, double circuit breaker bus B
Test/Function status/Control/Apparatus control/InterlDoubleCBBusB
The outputs from this function show when closing of disconnectors and breakers is
allowed and when it is not. It also shows whether QB1 is opened or closed and
indicates the validity of its switch status. There are 13 output values.
11.6.11.11
Interlock, double circuit breaker line
Test/Function status/Control/Apparatus control/InterlDoubleCBLine
There are three instances of this function with six outputs per instance showing
whether switching of disconnectors QB9, QC3 and QC9 is permitted.
11.6.11.12
Interlock line bay
Test/Function status/Control/Apparatus control/InterlLineBay
Displays six instances of the function (IF) with 28 boolean outputs per instance. These
indicate for which disconnect devices closing and switching of is allowed and also
indicate the status and validity of devices. For example, the measurement named
QB12OPTR indicates whether or not QB1 and QB2 are in the open position. If the
Section 11
Test the IED
66
Operator's manual
1MRK504049-UEN rev. D
RET 670