Resin-insulated Dry-type Transformer

Up to 38.5kV / 25,000kVA epoxy resin-insulated dry-type transformer with vacuum-cast windings, featuring low loss, flame retardancy and strong short-circuit resistance.

This series covers rated voltage up to 38.5kV and capacity up to 25,000kVA. Windings are vacuum epoxy-cast with copper or aluminum options. The CRGO silicon steel core adopts 45° mitered joints and 5-step lap structure for low loss. Rubber cushion supports deliver excellent vibration damping and short-circuit withstand performance. It features flame retardancy, low noise, maintenance-free operation, strong overload capacity and reliable insulation under over-voltage.

No.	Item	Parameter Value
1	Rated Capacity	50 ~ 25,000 kVA
2	Rated Voltage	≤ 38.5 kV
3	Insulation Type	Epoxy resin cast (dry-type)
4	Cooling Method	AN (Natural Air) / AF (Forced Air)
5	Insulation Class	Class F / Class H
6	Core Structure	CRGO silicon steel, 45° mitered joint, 5-step lap
7	Winding Material	Copper or Aluminum
8	Protection Degree	IP00 / IP20 / IP23 (optional)
9	Standard	IEC 60076-11 / IEC 60726
10	Key Features	Low loss, flame retardant, low noise, strong overload & short-circuit resistance

High fire-safety sites: Commercial buildings, hospitals, schools, underground substations
Industrial & utility systems: 35kV distribution networks, industrial plants, heavy-load mining facilities
Harsh environments: High-humidity, coastal and polluted industrial areas

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Resin-insulated Dry-type Transformer

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