Transformer backup protection operation causes and treatment

Transformer backup protection reasons are: the high-pressure side of the transformer short circuit. Transformer low-voltage busbar short circuit. Since the failure occurred within the differential protection, differential protection failure. Low line failure,  Voltage stabilizer  tripping, causing a transformer overload tripping. If the over-current protection, found that the voltage drop, shock, arc, sound and so on, to deal with external transformer checks; If timely troubleshooting, you can try to send one, or should be ready to take safety measures to repair; If no problems are found, also may try to send a; transformer differential  air circuit breaker  non-, in addition to external examination, it should also be measured to check the insulation. If the low-pressure outlet failure, line protection tripping, you can manually destroyed fault line switch, power transmission and transformer. If the differential due to a fault occurs within the scope of protection, differential protection failure, the differential protection should be handled.