Method for oil injection of liquid immersed type distribution transformer
A distribution transformer, liquid immersion technology, applied in the direction of inductance/transformer/magnet manufacturing, transformer/inductor cooling, circuit, etc., can solve the problems of high oil filling process requirements, affecting the quality of transformers, complicated operation process, etc., to improve Effect of oil injection efficiency, guaranteed performance, and simplified operation process
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[0017] The oil filling method of the liquid-immersed distribution transformer of the present invention comprises the following steps:
[0018] Step 1. Complete the assembly of the transformer to be oiled and transport it to the pre-soaking area;
[0019] Step 2, immerse the transformer body of step 1 in the oil in the air;
[0020] Step 3, transport the transformer in step 2 to a vacuum environment, and vacuumize the transformer oil tank under the required process conditions (there is no need for specific vacuum oiling equipment, as long as it can be vacuumed), when the vacuum When the pressure reaches the set value of 1000pa, close the vacuum valve of the oil storage tank and the oil injection chamber, and keep the pressure in the oil injection chamber for 15 minutes or more;
[0021] Step 4, transport the transformer in step 3 to the injection area, and refill the evacuated oil tank in the air until the liquid fills the oil tank.
[0022] The oil tank using the oil injecti...
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