S11-630kva oil-immersed transformer has no oil storage cabinet. The tank cover is equipped with a trinity device for oil injection, oil level indicator and pressure relief valve. The vacuum oiling process is used in S11-630kva oil-immersed transformer packaging to completely remove the moisture in the transformer. After sealing, the S11-630kva oil-immersed transformer oil does not talk to the air which effectively prevents oxygen and moisture from entering the transformer and causing performance degradation (material and oil aging). Therefore, it is not necessary to conduct regular oil sample tests and it is not necessary to replace S11-630kva oil-immersed transformer oil during normal life. The oil tank is a corrugated fin oil tank. The corrugated radiator not only has a cooling function, but also has a "breathing" function. The elasticity of the corrugated fin radiator can compensate for the change in oil volume caused by the temperature changing surface.

The advantage of S11-630kva oil-immersed transformer

S11-630kva oil-immersed transformer has long life and maintenance-free operation. The fully sealed transformer box cover and box edge are bolted or welded to isolate the contact between oil and air, and the insulation will not be wet, which will greatly reduce the insulation aging rate and increase the service life. The design has a compact structure and low operating noise. Due to the use of new materials and new technology. The noise is reduced and there is no oil storage tank. The height is lower than similar products. No oil change is required during normal life, which improves the safety and reliability of the network operation. The corrugated fuel tank is small in size and beautiful in appearance. S11-630kva oil-immersed transformer oil tank adopts corrugated sheet heat dissipation. When the oil temperature changes, the change in oil volume is adjusted and compensated by the elastic expansion and contraction of the corrugated sheet. No hanging core and oil detection. When S11-630kva oil-immersed transformer is packaged, the vacuum filtration and oil injection process is used to completely remove the moisture in the transformer oil. After sealing, the inside of S11-630kva oil-immersed transformer is not in contact with the air which effectively prevents oxygen and moisture from entering the and S11-630kva oil-immersed transformer reducing the insulation performance.

The insulation level of S11-630kva oil-immersed transformer

(1) 10kV S11-630kva oil-immersed transformer with power frequency withstand voltage of 35kV, lightning impulse voltage of 75kV

(2) 20kV S11-630kva oil-immersed transformer with power frequency withstand voltage of 50kV, lightning impulse voltage of 125kV

(3) 35kV S11-630kva oil-immersed transformer with power frequency withstand voltage of 70kV and lightning impulse voltage of 170kV