System under the operation of the system transformer disconnection cause great harm

Integrated transformer disconnected from the system under the operation of the system caused great harm, and especially mutual disconnection staggering flow, traction substation current transformers in the event of failure will cause the flow cross  air circuit breaker  relay or automatic device does not work properly, endanger the safe operation of the traction power supply system, for example: the feeder current transformer secondary winding protection disconnection, short circuit fault occurs in the feeder, the current class and the impedance of the protected class will refuse to move; transformer differential  power transformers of the current transformer secondary side break, under normal load, external short circuit, the differential protection will malfunction. Currently, the integrated automation system in the railway traction power supply system has been a large number of applications.