Mining flame proof substations

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mining flame-proof mobile substations

The Explosion-proof Mobile Substation consists of mainly explosion-proof high voltage switch, explosion-proof transformer, and explosion-proof low voltage switch. The transformer is bolted to the high and low voltage switches.
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Excellent explosion-proof performance and mechanical strength

Vertically lifted structure adopted

Adopted cylinder-type HV winding to strengthen resistance to over-voltage

Excellent over-load resistance and insulated performance by using Dupont Nomex paper

Fire-proof, nonpoisonous air created

Low noise


Environment protected

Our product advantages

The company's workshop is dust-free, constant temperature, constant humidity, with imported production technology equipment, to achieve the production process information, lean, intelligent
  • Iron core

    Iron core

    Superior silicon lamination for steel core, the lamination joint is processed by oblique cut angle and the latest new technology “seven-step”, which ensures small no-load loss and current.

  • Vertically lifted structure adopted

    Vertically lifted structure adopted

    Special anti-loose structure with vertical lifting ability, no internal looseness during transportation, easy to use and maintain

  • insulation material

    insulation material

    Main insulating material is C-class and Nomex paper is adopted, plus the oxygen-free copper winding, which ensures small partial discharge, small no-load and load loss, and low temperature rise.

  • Enclosure


    Excellent explosion-proof performance and sufficient mechanical strength. 

  • rail wheels

    rail wheels

    Equipped with rail wheels, strong impact resistance ability, detachable and adjustable rail gauge.

  • Multiple protective functions

    Multiple protective functions

    Multiple protective functions of overload, short circuit, leakage, leakage lockout, over-voltage, under-voltage and over temperature. 

     With RS485 interface for computer communication. 

Related product parameters

Main Specification

Transformer type

Three phases, dry type



Rated capacity

Up to 8000kVA 

Rated voltage

Up to 10kV

Insulation class


Cooling mode


Explosion-proof type


Connection code

Yd, Dyn, Yyn etc.

Executive standard


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”.


Mining Flame-proof Mobile Substation is designed specially for environment of methane mixture gas, coal dust and potentially explosive areas. It’s widely used in coal mines, non-ferrous metal mines, tunnel projects etc.
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Related Content

Mining flame-proof transformer

Mining flame-proof transformer

Flame-proof mobile substation

Flame-proof mobile substation


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Varelen Electric Co., Ltd