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Cause and Treatment of Transformer Backup Protection
Oct 20, 2016

(1) If the over-current protection action, found that the voltage drop, shock, arc, sound and other phenomena, should check the transformer external; If you can promptly troubleshoot, you can try to send once, or should take security measures to prepare for repair; Problems, but also try to send once; no differential protection of the transformer, in addition to external inspection, the insulation should also be measured test.

(2) If the low-voltage outlet fault, line protection refused to move, you can manually knock down the fault line switch, and then the transformer power.

(3) If the differential protection within the scope of failure, differential protection failure, it should be differential protection action processing.

(4) If the secondary circuit failure, it is mistaken or mistakenly touched, the duty officer can immediately test transmission.

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