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Cast Resin Dry Type Electric Transformer 4000kVA Power Single Three Phase Transformers

Cast Resin Dry Type Electric Transformer 4000kVA Power Single Three Phase Transformers

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Product Type: Dry Type Transformer
Product Features:
1) 45-degree fully inclined stepping seam iron core
The transformer core adopts imported high-quality magnetically permeable grain orientation, cold-rolled silicon steel sheet, 45-degree fully inclined stepping joints, a special square tube drawing plate structure, and the core column is bound with insulating tape; the surface is coated with special resin To prevent moisture and rust, it effectively reduces no-load loss, no-load current, and core noise.
2) Multilayer segmented cylindrical high-voltage coil
The high-voltage winding conductor is wound with F-class insulated copper wire, with long and short cut glass fiber mat as reinforcing filler, and poured with epoxy resin mixture in a vacuum state (1-3 bar). Effectively suppress the generation of partial discharge phenomenon, the partial discharge amount does not exceed 5PC.
3) Longitudinal airway foil structure low-voltage coil
The voltage coil is wound on an automatic foil winding machine with high-quality foil conductors, argon arc shielded welding, and high welding precision; pre-impregnated DMD is used as interlayer insulation, and pre-impregnated glass cloth is used as insulation inside and outside, and the upper and lower ends are sealed with epoxy resin, and then enter the curing furnace for overall curing, with good moisture-proof performance.
4) Sturdy and beautiful protective shell
IP20 can prevent the entry of solid objects with a diameter greater than 12MM, and can resist accidental impact; IP23, in addition to the function of IP20, can also prevent the inflow of water droplets within 60 degrees from the vertical line, suitable for outdoor installation; can be customized.
5) Perfect temperature protection control device
The overheating protection device mainly realizes the temperature detection and control of the transformer through the PT thermistor embedded in the low-voltage coil. During the operation of the transformer, it will display the temperature value of the three-phase winding rovingly; display the temperature value of the hottest phase winding; alarm and trip when the temperature rises; sound and light alarm, fan start, fan overload protection, and computer interface.

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