Bus differential locking device and method for its use of busbar differential protection blocking
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The present invention discloses bus differential locking device and method for its use of busbar differential protection atresia, in which the central unit bus differential protection blocking device comprises a connecting and spacing means for spacing unit includes a central processor, the bus, the next bus, the isolation switch disconnectors and circuit breakers, the central processor via the isolation switch, will form a knife breaker and the connection line between them are under quarantine isolation between the central processor and the bus and the next bus loop turned on or off, the central unit includes an information processing unit, a state judgment unit and a command unit, the output of the spacing unit and information processing unit connected to the input of the instruction unit is connected with the unit interval. Bus differential locking device of the present invention is determined by the analog display bus, and bus monitor running status, to protect the bus, in order to correctly reflect the fault bus operation and removal of the point of failure.