Flameproof Mining Movable Substation QF-2

Flameproof Mining Movable Substation QF-2

Description of Flameproof Mining Movable Substation:
This series flameproof substation we manufactured in China is a kind of high-quality explosion-proof motors that being composed of a flameproof dry-type transformer, explosion-proof high-voltage load switch or high-voltage vacuum switch and explosion-proof low-pressure feeder switch or low-pressure protection box. Furthermore, this flameproof substation substation can also be used as power supply of transforming device for various underground coal mining equipments because it can still runs even in a 3-phase power system with rated frequency 50Hz, rated primary voltage 10KV or 6KV.  

Characteristics of Flameproof Mining Movable Substation:
1.With optimized short-circuit, over-loaded, earth leakage and under-voltage protection functions
2.There is electrical interlocking between high-voltage switch and low-voltage switch, and between high voltage switch and upper-level high-voltage power distribution devices
3. The high-voltage switch has cover-opening electrical interlocking function, and the movable transformer has over-temperature alarming function.

Applications of Flameproof Mining Movable Substation:
This flameproof mining movable substation is suitable for underground coal mines or other sites, where the explosion may be latent.

Working Conditions of Flameproof Mining Movable Substation:
1) Local altitude should not surpass 1000m;
2) Ambient temperature:
Max.temperature: 40℃
Max. Daily mean temperature: 30℃
Max. Annual mean temperature: 20℃
Min. Temperature:-5℃
3) Air relative humidity is no more than 95%(at 25℃);
4) In underground mines with methane, gas and mineral dust, as well as explosive hazards;
5) Environment without intense vibration, shake and inclined angle with vertical interface should not surpass 15°;
6) Sites without gas and steam, which will be erosive to metal and destructive to insulation;
7) Places without water drops;
8) Waveforms of power voltage approaches to sine wave;
9) The voltage of 3-phase power is approximately symmetrical.
Sincerely welcome to contact us for more information on our explosion-proof motors!