Virtual monitoring method for transformer substation sequence control
A substation monitoring and sequence control technology, applied in electrical components, circuit devices, information technology support systems, etc., can solve problems such as increasing system complexity and maintenance difficulty, reducing operational reliability and system stability, and improving equipment availability. Maintainability and operational reliability, achieve unattended operation, and ensure the effect of operational safety
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[0028] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.
[0029] Sequential control is an automatic operation mode in which intelligent equipment simulates manual operation processes and steps, combined below figure 1 Introduce the content and steps of manually operating the primary equipment group (circuit breaker 1, disconnector 2) in order to remove the load of the normal power supply feeder:
[0030] State before operation: circuit breaker 1 and isolating switch 2 are both in the closing position, confirm that there are two operations;
[0031] The first operation: disconnect the circuit breaker 1;
[0032] The second step is to check before operation (avoid the anti-misoperation inspection of the disconnecting switch with load): check that the status indication of circuit breaker 1 is disconnected, check that there is no voltage on the load side line of ...
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