Mine Electric Transformer

Mine Electric transformer is a set of movable power supply and transformation device, which is used to change AC voltage. It is suitable for mines with explosive atmospheres such as methane mixed gas and coal dust. The 6KV, 10KV power supply is converted into a low voltage...

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Product Details

Mine Electric transformer


1617333948(1)Mine electric transformer is a set of movable power supply and transformation device, which is used to change AC voltage. It is suitable for mines with explosive atmospheres such as methane mixed gas and coal dust. The 6KV, 10KV power supply is converted into a low voltage power supply required for 400 (380), 693 (660), 1200 (1140), 3450 (3300) V coal mines.


Mine Electric transformer

1.Product Introduction


It converts 6KV and 10KV power supply into low-voltage power supply needed in underground coal mine of 400(380), 693(660), 1200(1140) and 3450(3300)V. The shell of mine transformer is full corrugated, open-cover and open-top structure on both sides, which has the advantages of high mechanical strength, low temperature rise and good heat dissipation effect. The iron core is made of high quality low loss silicon steel sheet with low no-load loss, low no-load current and low noise. It adopts H-class insulation material and advanced insulation structure, which has good thermal stability and can be operated at full temperature at high temperature.


2.Products Specification


Rated Capacity

(kVA)

High Voltage

(kV)

H.V Tap Range(%)

Low Voltage

(kV)

No-load LosskW

On-load Loss(kW)

No-load Current(%)

50

High pressure

10

6

Low pressure

0.693/0.4

Yyo-d11

4

0.13

0.67

2.0

80

0.19

0.96

1.8

100

0.22

1.15

1.6

125

0.26

1.38

1.5

160

0.3

1.69

1.4

200

0.37

2

1.3

250

0.43

2.35

1.2

315

0.52

2.81

1.1

400

0.62

3.31

1.0

500

0.74

3.92

1.0

630

4.5

0.92

4.77

0.9


3. Application fields


1617089975(1)


4. Deliver-shipping and serving



Delivery timeNormally, the delivery time is 20 days around
Packing

The transformer main body usually in nude, and the accessories are packed in plywood case with steel structure, its worthy for ocean transportation.

Transportation

Usually, the total weight under 45 tons, it’s available by kinds of container, above 45 tons, it’s available by bulk ship

After service

Usually, we will dispatch experienced technicians to client’s installation site for the supervision service within 15 working days after getting official information.


5. FAQ


1.What is the difference between mine transformer and ordinary transformer?

Mine transformer is small in size, without breathing apparatus and oil conservator, primary lead-out or secondary outlet in the side of the transformer is not at the upper end. The neutral line is not directly grounded.

2.Why mine transformers are widely used in explosion-risk areas

It not only prevents explosion and fire, but the enclosure can withstand overvoltage. Under normal circumstances, the casing can withstand the impact of 1.5 times the working pressure of the explosion in practical activities without being destroyed and without permanent deformation.


6. Latest News


Mine transformer is a movable complete set of power supply and transformation device, which is divided into mine general transformer and mine flameproof transformer.Mine general type transformer is used for coal dust and methane in the mine without the risk of explosion, for power driving and lighting electricity, mine flameproof type transformer is more used in the mine with the risk of explosion.



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