Coal Mine Explosion Proof Transformer / Dry Type Electrical Transformer

Description:

Electric arc furnace transformer core is made of silicon steel made with the film's plot Diego, leg-shaped cross-section of a multi-stage, compared with a rectangular yoke into a convex shape. Coil transformer is high, low cross arrangement, mounted on the same paper tube, high pressure is when "" shaped connector, generally lead to six early in order to transform connection outside the box, low-head with copper leads outside the box.

Mine use explosion proof dry-type transformer suitable for underground mines containing methane mixture gas and having potential danger of coal dust explosion. The transformers were be worked as the distribution equipment for a large variety of electrical equipment, like pumping station, conveyor, mining machine and so on. The transformer suitable for used in coal mine, non ferrous metal mine and tunneling.

Product standard

GB8286-2005      Mine use explosion proof mobile substation

GB3836.1-2000    Electrical Apparatus for Explosive Gas Atmosphere—Part 1: General

GB3836.2-2000    Electrical Apparatus for Explosive Gas Atmosphere—Part 2: Flameproof enclosure “d”

GB3836.3-2000     Electrical Apparatus for Explosive Gas Atmosphere—Part 3: Increased safety “e”

JB4262-92        Rubber cable introduced for explosion proof electrical equipment

Applicable circumstances

The altitude is less than 1000M

The maximum temperature : 40 ,    The minimum temperature : -5 ,

Relative humidity less than 95%( 25 )

Underground mines containing methane mixture gas and having potential danger of coal dust explosion

No strong bump and vibrate, the vertical surface less than 15 degrees

There is no the gas and steam that could corrosive meter or damage the insulation in the environment

No leakage

The waveform of power is similar to sinusoidal wave

Three-phase voltage approximate to symmetrical

Competitive Advantage:

1. The transformer is mine use explosion proof type and has excellent explosion proof performance and mechanical strength.

2. Special design for inner constructio