① Transformers should be five full-voltage impact switch, no abnormalities occur, magnetizing inrush current protection device should not cause malfunction.
② transformer tied for the first phase should be checked to require the same phase.
③ Check all the welding transformers and cooling joints and joints, there should be no oil leakage phenomenon, the transformer no abnormal vibration or discharge sound.
④ test run time is generally not less than 24h.
⑤ transformer test run without exception, gradually increase the load, began to run with load. After 24h with load, the main body and accessories of the transformer are normal, then the commissioning work is over.
Before：Transformer overheating may be the reason
Next：To prevent the transformer short-circuit solution
We must strive for perfection, strive for perfection, serve each customer with heart, and reward society
China to Build 12,000 Charging Station to Solve New Energy Vehicles "Charging Difficulties"2017-12-28