Phase-shifting transformer

Dry type transformerOil immersed transformerMining flame proof substationIntegrated substationPhase-shifting transformerReactorSpecial transformer

VPI dry-type transformer

Improved construction, compact size, superior reliability Apdopted plenty of C-class Dupont Nomex paper to increase the performance of overheat/overlaod/fire-proof resistance
  • transformer with enclosure
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  1. transformer with enclosure
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  3. 09.jpg
  4. 07.jpg

Improved construction, compact size, superior reliability

C-class Dupont Nomex paper 

highly insulating

Our product advantages

  • Iron core

    Iron core

    Core is made of superior steel, outstanding performance of magnetic conduction. Joint is processed by 45° oblique angled technique, with low loss & low noise.

  • fan


    Blowers with metal cover, fan’s interface with metal cover 

  • winding


    Winding structure is pie type, which can manage with the field strength effectively. Plus the NOMEX paper used, which ensures very low partial discharge.

  • coil


    Coil is made of oxygen-free copper, low resistance and low loss, but high efficiency. 

  • insulation material

    insulation material

    Insulation material: NOMEX paper of DUPONT brand, insulation Class C, heat-resistant is up to 220℃, with excellent overload capacity.

Related product parameters

Main Specification
Dry type
PhaseThree phase
Rated Capacity250 to 10000kVA
Rated HV3kV to 13.8kV
Rated LV3kV to 10kV
Temperature Rise125K
Cooling ModeAN / AF
Insulation ClassH
Winding Connection CodeY/E/yn
Secondary Windings Available6, 9, 12, 15, 18, 21, 24, 27, 36 windings
Maximum temperature+40℃
Minimum temperature-25℃

Factory Test & Report


Factory Advantages

  • Personalized customization

    Only Focused on transformers, but we offer customized different types of transformers.

  • +20 years experience

    +20 years experience R&D team, derived from a 60 years history transformer factory in Changsha city of China.

  • Drew up the National Standard for Mining Explosion-proof Substation

    One of the drafters of Chinese National Standard (for Mining explosion-proof Mobile Substations). Unique deisgning for customers' convenience,like “Vertically Lifting”.


The equipment suppliers multi-phase power to midhigh volt convertors, which is commonly applied to boiler fan, water supply system, metallurgy, chemical industry and automatical municipal facilities.
 chemical industry
boiler fan

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Varelen Electric Co., Ltd

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