High Quality Explosion Proof VFD for Coal Mine, Belt Conveyor VFD, Water Pump VFD Suppliers in China

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Explosion Proof VFD for Coal Mine Machine

  • Explosion Proof VFD for Coal Mine Machine
  • Explosion Proof VFD for Coal Mine Machine
  • Explosion Proof VFD for Coal Mine Machine

Explosion Proof VFD for Coal Mine Machine

Basic Info

Model No.: ZBT

Product Description

Explosion proof VFD

Explosion proof VFD is new type motor speed controlling products which is integrated with Computer Control Technology, bussing technology, power electronic technology, explosion proof technology, cooling technology (heat dissipation technology such as cooling by air, cooling by water, heat pipe), it is a dedicated VFD which developed for applying in bad working condition such as coal dust, gas, moist.

Consist of 380V, 660V, 1140V, 3300V voltage grade. It has two kind of specification: single quadrant and four quadrants, which is common in electrical control for the speed of hoist, scraper conveyor, belt conveyor and endless-rope hoist, ventilator, water pump, emulsion pump station under coal mine

The explosion proof VFD is with fast open door structure and standard design with compact structure which is easy to maintain.

SVC vector control technology with the function of suspending at zero speed, it can self-tune to recognize motor and the grid parameter, big start torque, fast response, precise speed control, good stability.

Using the control proposal of PWM commutation for unit power factor at grid side to realize four quadrants operation, and the power factor is controllable, the energy conversion efficiency is high, energy saving effect is remarkable.

Many kind of control methods, such as V/F control, vector control, torque control and so on, are designed at the motor side.

With the function of synchronous control with multiple machine so that can realize synchronous control of multiple VFD.

With various impeccable protection functions, such as over voltage, under voltage, over load, phase loss and over heat.

1.Rated input voltage: 660, 1140, 3300 (V) ±10%

2.Max rated power: 630/1000/2000 (kW)

3.Max rated current: 700/401/453 (A)

4.Control method: vector control, high performance V/F control

5.Big torque under low speed: 0.1Hz 150%200%Tn

6.Acceleration control: able to speed up at multiple section, stable start with less mechanical shock

7.Synchronous function: multiple machine with synchronous speed (5 pcs), self balancing load

8.Driving distance: two electrical levels 50/400m, three electrical levels 1000m;

9.Structure: single core with fast open door, centralized thermal dissipation;

10.Cooling method: thermal tube, thermal tube+enforced air cooling, water cooling;

11. Filter function: LRC filter is equipped at the output end to effectively reduce the harmonic and suppress dv/dt as well as the motor influenced by peak voltage.

12. Explosion type: mining flame-proof type

13. Motors: normal three phases squirrel cage induction motor, permanent magnet synchronous motor.

14. Protection functions: under voltage input, over voltage input, phase loss input, DC bus, under voltage on DC bus, over heat, IGBT in short circuit, loss control, communication, motor in short circuit, motor in phase loss, motor over speed, zero sequence current, protection of earth leakage lockout.

15. Communication interface: with plentiful communication interface to realize remote information transmission.

16. Self diagnosis

Jiaozuo Huafei Electronic & Electric Co., Ltd.


Expert of Electric Automation, Base of Variable Frequency Drive

--Jiaozuo HUAFEI Electronic & Electric Co., Ltd.

Huafei Company was established in 1987 which is the first batch of National Grade High-tech Enterprise.

The company has successively been approved to be [Top 50 Provincial Equipment Manufacturer", [Provincial Enterprise Technical Center", [the Provincial VFD Engineering Technology Research Center", [Provincial Intelligent Engineering Technology Research Center of Main Coal Flow Conveying System in Mine" and it is the post-graduate training base of Henan Polytech University.

The company has passed the authoritative management system certification of the quality, environment, occupational health and safety, the main products have obtained national 3C, CE certificate of European Union and Other product certification. Having more than 100 core technologies, more than 200 national patent technology, the main products have reached the international leading level, part of the products have won Gold Award of Brussels Eureka World Invention Expo.

For the past more than 30 years, the company has always been carrying the business philosophy "Integrity make quality, Tech make the future", insisting the business mission "create safer, more intelligent, better use of industrial products", continue to contribute to improve the level of intelligent equipment in the mine main transportation system.

Company Info

  • Company Name: Jiaozuo Huafei Electronic & Electric Co., Ltd.
  • Representative: Zhao hui
  • Product/Service: Medium Voltage VFD , Explosion Proof VFD , Intelligent Mine , Hoist Electric Control , Belt Conveyor Electric Control , Automation Control System
  • Capital (Million US $): 20000000RMB
  • Year Established: 1996
  • Total Annual Sales Volume (Million US $): US$50 Million - US$100 Million
  • Export Percentage: 41% - 50%
  • Total Annual Purchase Volume (Million US $): US$10 Million - US$50 Million
  • No. of Production Lines: 5
  • No. of R&D Staff: 71 -80 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 50,000-100,000 square meters
  • Factory Location: No.2688 Shenzhou Road High-tech District Jiaozuo City Henan Province China
  • Contact Person: Mr. Terry Zhang
  • Tel: +86-391-2903918
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