In Jan, 2015, the third generation explosion-proof & intrinsically safe medium-voltage independent combination AC drive for mining industry was launched to the market.

The explosion-proof & intrinsically safe medium-voltage independent combination AC drive for mining industry that was developed by Shenzhen cumark new technology Co.,Ltd,adopting the patent technology of the company, realizing single-machine of 2200kw/3.3kv and 6600kw in domestic and abroad, which is the real medium-voltage independent combination AC drive,the technology is now of the world leading level . Three  AC drives that placed in one cabinet are completely seperated and do not influence each other ,which effectively satisfy the heavy-load、big output torque running requirements of Coal mining equipment intelligent system and improve the stability and reliability of the scraper conveyor.

The explosion-proof & intrinsically safe medium-voltage independent combination AC drive for mining industry , adopting the patent technology of the company, Three  independent AC drives that can be isolated by contactor are placed in one cabinet ,and they are completely seperated with no mutual influence.

Every AC drive supply the power to the motor as “One drive to one motor”pattern that not only completely independent but also combined into an organic whole,and of high reliability and high power density. Anyone of the AC drive that fault occurs , the other one will work regularly with no influence.

The explosion-proof & intrinsically safe medium-voltage independent combination AC drive adopts modular design and good exchangeability,it is more compatible for every different models that makes the backup components easy to manage . The running wheels are installed at the bottom of the AC drive , which make it easy to be pulled out and pushed in,the maintenance of the equipment will also be convenient that decrease the stopping time of the machine.

The explosion-proof & intrinsically safe medium-voltage independent combination AC drives, adopting the advanced topological structure and high-power IGBT imported components ,which are based on high-performance vector control technology,12-pulse low harmonic filter technology and sine-wave filter technology and effectively solve the scraper conveyor chain scission protection, master-follower power balanced and intelligent speed regulation.

The explosion-proof & intrinsically safe medium-voltage independent combination AC drives win the “the first-class products of the world ”awarded by the Electricity Efficiency Committee of Chinese Electrotechnical Society in 2015.

1,Altitude shall not above 1000m.

2,It can not be used in the mines that have hybrid of methane and explosive gases.

3,It can not be used in the places that have steam、metal filing and errosion gases.

4,Outer-cycle water temperature is 4-27℃.

5,Environment temperature is 0-40℃.

6,Air relative humidity: Less than 95%(+25℃).

7,It should be used in the places with no vibration and inclination angle within 15°

Soft start/stop with heavy load of scraper conveyor,automatically energy-saving operation.

Soft start/stop with heavy load of belt conveyor,automatically energy-saving operation.

Soft start/stop with heavy load of stage loader conveyor and crusher .