Transformer oil treatment equipment

Operation methods of transformer oil treatment equipment:

By testing the strength of the tank by vacuum pumping, the general local elastic deformation should not exceed twice the thickness of the tank wall, and check the tightness of the vacuum system.

1. After vacuum is pumped at a uniform speed, the specified vacuum degree is reached and maintained for 2 hours, oil is injected into the transformer tank (the general pumping time = 1/3-1/2 exposure time). The temperature of oil injection should be slightly higher than the body temperature.

2. When the oil is injected into the transformer at a speed of 3-5 t/h about 200 mm from the top of the box, it stops and continues to vacuum for more than 4 hours.

3. Transformer oil filling: Transformer oil filling after vacuum filling, need to be injected through the tank oil injection pipe, strictly prohibited from the lower throttle injection, oil injection should be slowly injected into the transformer until the required oil level, and then static for 12 hours.