Coal Mine Explosion Proof Transformer / Dry Type Electrical Transformer

Delivery Time:20~25 days
Certification:MA, ISO9001,
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 construction, in case of inner construction was loosened in the term of delivery.

3.  The transformer has the strong capable of withstand thermal shock. It be able to overload and has the ability to withstand short circuit, low loss, a small amount of partial discharge and good insulation.

4. It is insensitivity to temperature and dust.

5. All insulation materials doesn’t combustion-supporting, self-extinguishing, non-toxic, excellent performance of fireproof, the transformer owned the characteristics like no harmful gases, low noise and no pollution.

6. it’s easy to use and maintain

7. Adopt C level of Nomex paper-covered wire from DuPont USA, it owned such features as air insulation, cooling, non-pollution, long lifetime and can be recycled.

8. Adopt the high quality 30Q130, 27Q120 cold rolling silicon steel and oxygen free copper conductor, the actual total loss is lower than similar foreign products, energy conservation and noise reduction.

Specifications: Main technical parameters

Rated capacity	Primary rated voltage 6KV	primary rated voltage 10KV
load loss	No-load loss	Short-circuit impedance	No-load current	Load loss	No-load loss	Short-circuit impedance	No-load current
50	550	350	4	2.5	680	390	4	2.5
100	920	520	1050	560
125	1080