Performance characteristics of oil-immersed transformer

a, in addition to oil-immersed transformer low-voltage winding copper wire outside the small capacity, are generally used copper foil around the pumping cylindrical structure; voltage winding cylindrical multi-layer structure, so that the distribution of the balance of ampere-turns of the winding, magnetic flux leakage small, high  circuit breakers strength, resistance to short-circuit capability.
  b, core and windings each with a tightening measures to control height, low voltage wire and other fastening parts with self-locking lock nut, using a hanging heart no structure can withstand transportation Britain earthquake.
  c, the coil and the core by vacuum drying, vacuum oil filter and transformer oil filling process, so to mcb circuit breaker  moisture inside the transformer.
  d, the use of corrugated sheet tank, which has to compensate for respiratory function changes caused by temperature changes in the volume of oil, so that it is not conservator, apparently reducing the height of the transformer.
  e, instead of the corrugated  Electric energy meter  cabinets, the transformer oil and the outside world, so that oxygen is effectively prevented, the entry of water causes a decline in insulation performance.
  f, according to the above five points performance, ensuring the normal operation of the oil-immersed transformer does not require oil changes within, greatly reducing the maintenance cost of the transformer, while extending the life of the transformer.