Characteristics:

1. Highg efficiency and low loss:
It can save a lot of operation cost and the social benefits are very significant.
2. Iron cores made of high conduction magnetism , cold-rolled and grain oriented silicon steel sheet imported from oversea countries. The iron core and windings adopt vacuum drying and oil filling process, making the internal moisture down to a very low level.
3. Hemetically sealed conservator, making the internal running oil seperated with oxygen and moisture efficiently.
4. No need to change oil during the normal operation of the transformer, greatly decreases the maintenance cost and prolong tits service life.