Method for isolating in-station faults of comprehensive power distribution terminal of transformer substation
A power distribution terminal and fault isolation technology, applied in the field of feeder automation, can solve the problems of inability to open the time difference in protection classification, high requirements for operation and maintenance personnel, difficult to copy and promote, etc. Reproducible effect
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[0022] Embodiment: A method for fault isolation in a station integrated power distribution terminal, comprising the following steps:
[0023] (1) Use the voltage and current acquisition module to collect voltage and current signals in the station, and transmit the collected voltage and current signals to the control module;
[0024] (2) Use the control module to establish an association relationship between the blocking signal detection module of the connection incoming line switch 8DL and the blocking signal control detection module of the connection outgoing line switch 7DL through the electrical connection relationship;
[0025] (3) When a fault occurs, the voltage and current acquisition module of the switchgear (7DL and 8DL) can detect all fault current signals from the power point to the fault point, and transmit this signal to the control module;
[0026] (4) At this time, the blocking signal of the connection outlet switch 7DL close to the fault point controls the dete...
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