All

varelen factory products

Products 

 

 

Email: hunhr@varelen.com

Wechat:008617307414252

 

 

 

Your present location:index >> Products & service >> Mining Flame-proof Transformer Substation >> Mining FlameProof Mobile Substation
  • Product: Mining FlameProof Mobile Substation
  • Rated capacity: 100~8000kVA
  • Frequency: 50/60Hz
  • Primary voltage: 10,36kV
  • Secondary voltage: 0.6,0.69kV

500kva mining subsationPurpose
The product is suitable for underground environment containing methane mixture gas and coal dust with potential explosion hazard. There are two groups of three-phase power supplies (which have same output voltage and 30°phase difference) at the secondary side, will work as the power supply for the converter 12-pulse rectification. It is suitable for coal mine, nonferrous metal mine, tunnel engineering, etc.


Characteristics
The product is mining flame proof type, and it has excellent flame-proof performance and adequate mechanical strength.
The transformer is designed with free assembling core structure to prevent the product internal loose during transportation.
High endurance on thermal shock, ultra-highly load and anti-short circuit; low loss, low partial discharge, good insulation performance.
No sensitive to temperature and dust. Nonflammable, fire-retardant, no harmful gas, low noise and no pollution.
Easy to operate and maintain. High insulation, can withstand the harmonic over-voltage insulation impact.
High harmonic inhibiting ability, effectively limits 5 or 7 times harmonic current by 12-pulse phase shifting function.
Two groups of three-phase power supplies (which have same output voltage and 30°phase difference) at the secondary side, will work as the power supply for the converter 12-pulse rectification.


Main technical parameters

Rating kVA

Primary voltage
kV

No-load loss
W

Load loss
W

No-load current
%

Secondary voltage
V

Connection symbol

1250

10
or
6

2800

7400

1.0

2*1200
or
2*1905

Yy0d11

1600

3450

8500

1.0

2000

4050

9700

0.7

2500

4700

10800

0.7

Dd0y11

3150

5500

12800

0.7

4000

6300

15000

0.7

 

 

HV and LV switches have three configuration options:

A) Mining Flameproof HV vacuum switch + Mining Flameproof LV protection box 

B) Mining Flameproof HV vacuum switch + Mining Flameproof LV feed switch

C) Mining Flameproof HV vacuum switch + Mining Flameproof LV multi-loop combined switch(LMCC)