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Transformer oil temperature rise is not normal how to deal with?
Time:2017-12-29 0:06:15      Click times:1190

1) Check the load on the transformer and the temperature of the cooling medium, and check with the oil temperature that should be present at the same load and cooling medium temperature.

2) check the correctness of the calibration thermometer.

3) Check the ventilation of the transformer cooling device or transformer room. If the reason for the temperature rise is due to the failure of the cooling system, and if it can not be repaired in operation, immediately stop the transformer repair. If it is not necessary to stop for repairs (such as partial fan fault in oil-immersed air-cooled transformer, forced partial cooler failure of oil circulating transformer, etc.), the duty personnel shall adjust the load of the transformer to the corresponding capacity according to the relevant regulations . If it is found that the oil temperature is higher than 10 ℃ above the same load and cooling temperature, or the transformer load is unchanged and the oil temperature is constantly rising, and the inspection result proves that the cooling device is normal and the transformer room is well-ventilated and the thermometer is normal, the transformer is considered to have occurred Internal fault (such as iron short circuit, winding turn short circuit, etc.), and the transformer protection device for some reason does not work. In this case, the transformer should be deactivated immediately.


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