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The winding is made of high strength varnished wire or paper-insulated wire in cylindrical or disk type. The distribution of ampere-turns is uniform, the insulation structure is reasonable, so the winding has high ablility to withstand short-circuit.
The oil tank is corrugated type and fabricated with automatic tank production line from GEORG in Germany, After phosphorating,its surface is coated with dampproof, mildewproof and saline fog proof painting , Thus, the transformer can be widely