... Low losses 6.3kV/1500 kVA Full-sealed Distribution Transformer•Introduction to Products Its core is made of quality cold-rolled silicon sheet ... oil conservator, the height of transformer is reduced , and as the transformer oil doesn’t contact with air , the oil ageing is ... level, S9-M,S10-M,S11-M series three-phase Full-sealed No-load-tap-changing distribution transformer Rated power(kVA)High Voltage ...