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3.3kV / 6kV / 10kV mine flameproof and intrinsically safe frequency converter series

3.3kV / 6kV / 10kV mine flameproof and intrinsically safe frequency converter series

    Unit Price: 40000 USD
    Min. Order: 1 Set/Sets
    Transportation: Land,Ocean

Basic Info

Model No.: BPJV1-710/6

Product Description

Product overview

The product adopts SPWM technology, high-performance V / F control and speed sensor-less vector control technology, multi-unit cascade topology structure, equipped with dry film capacitor, cold resistance

The water cooling mode is adopted; It is suitable for 6kV or 10kV input voltage power supply, 3.3kV, 6kV, 10KV voltage level motor drive control, especially suitable for coal mine

It can be used for long-distance drive control of heavy-duty motors such as high-power scraper conveyor, crusher, transfer machine and belt conveyor; It has the advantages of large starting torque, high power factor and soft start

It has many excellent characteristics, such as dynamic, long-distance power supply, multi machine power balance function and so on.

Product structure

3 3 6 10 Enclosure

3 3 6 10 Enclosure Back

Product features

High speed DSP control core adopts SPWM modulation technology;

Using space voltage vector control technology, it has the advantages of small starting current, large output torque, smooth speed regulation, small impact on power grid and easy centralized control;

The built-in PID function can adjust the voltage and frequency of the motor working power supply according to the change of the motor load or the change of external variables (such as pipeline pressure), so as to achieve the desired goal torque demand, obvious energy saving effect, economic and stable operation;

Using power unit series multilevel technology, high reliability and easy operation;

Meet all kinds of load speed regulation requirements of users, improve the production process;

The harmonic index is far less than the harmonic standard of IEEE 519-2014, the input power factor is high, the output waveform quality is good, and it is unnecessary to use the input harmonic filter and power factor compensation

Compensation device and output filter; There are no additional heating, torque ripple, noise, output DV / DT, common mode voltage and other problems caused by harmonics.

Perfect protection mechanism: the power unit includes a variety of protection functions, such as phase loss, over-voltage, over-current, under voltage, communication fault, etc. The machine can still bypass automatically; The whole machine protection includes input over-voltage, input under voltage, output phase loss, software over-current, motor overload, output short circuit, instantaneous power failure and leakage current lock, insulation monitoring, protective grounding, power electronic power device overheating and other protection functions.

Current limiting technology: if the current exceeds the limit value, the increase of current is limited by frequency reduction until the current is less than the limit value, the frequency converter returns to normal operation frequency.

Acceleration and deceleration adaptive function: the product adjusts the acceleration time or limits the motor operation frequency according to the motor current, so as to limit the current and realize no over current during acceleration and deceleration. In the process of frequency reduction, the frequency reduction time is adjusted according to the bus voltage, so as to achieve the function of no overvoltage in the process.

Vibration suppression function: when the motor is under light load or no-load, local instability will occur. At this time, the current amplitude fluctuates greatly, which may cause the system to be damaged by over-current or over-voltage trigger protection and current oscillation suppression function can effectively suppress the current oscillation and ensure the stable and reliable operation of the system.

Over voltage stall Technology: in the process of frequency reduction, the motor is in power generation state, forcing the bus voltage to be raised. This function will automatically lengthen the frequency reduction time to prevent the shutdown problem caused by bus overvoltage.

Technical parameter


Phase, Frequency, Voltage

Three phase, 50/60Hz3.3kV/6kV/10kV


Supply voltage ± 20%5060Hz ± 5%, voltage unbalance rate < 3%


Rated voltage


Rated current

100% rated current continuous

Output frequency


Output waveform

Multiplex SPWM sine wave

Basic control performance

Control mode


Carrier frequency

0.5kHz~16kHz(can be adjusted automatically according to the load)

Frequency resolution

Digital setting: 0.01Hz Analog setting: maximum frequency × 0.025%

Speed range


Steady speed accuracy

± 0.5%SVC

Torque control accuracy

± 5%

Overload capacity

150% / 1min (120% - 250% optional)

Torque boost

Automatic torque boost; Manual torque boost by 0.1% 30.0%

Simple PLC, multi speed operation

built-in PLC or control terminal to achieve up to 16 speed operation

Built-in PID

can easily realize the closed-loop control

Automatic voltage regulation (AVR)

keeps the output voltage constant when the grid voltage changes

Over voltage and over current stall control

Automatically limited during operation to prevent frequent over-voltage and over-current fault tripping

Fast current limiting function

Minimize the over-current fault and protect the normal operation of frequency converter

Torque limitation and control

Automatically limited torque during operation to prevent frequent over-current trip.

Special functions

Point to point communication

Can realize master-slave control

Multi communication protocol

Modbus, Canlink and Ethernet

Fast current limiting

Avoid frequent over-current fault of frequency converter

Motor type

AM,PM motor


Digital input

8 channels

Analog input

4 channels:0-10V/2-20mA selectable


Digital output

6 channels

Analog output

4 channels: 0-10V/2-20mA selectable


Over voltage, under voltage, over-current, overload, short circuit, over temperature, leakage blocking, lack of phase protection and other functions


Control command

Keypad, Terminal, Communication(switching)

Speed command

10 kinds of frequency sources: digital, analog voltage, analog current, communcation. It can be switched in many ways


LED display

Display setting parameters


Display operation status: output frequency, output current, temperature, operation curve, alarm information, fault analysis, etc



Underground coal mine, no corrosive gas, in the environment with explosive mixture of coal dust and gas, in the environment without damaging the insulation of gas or steam.


Less than 2000 meters; atmospheric pressure is (0.08 ~ 0.11) MPa;


0 ~ + 40 (above 40 , derating)


Less than 95% RH (+ 25 ), no condensation


In the place without significant vibration and impact

Storage temperature

- 20 ℃~ + 60


IP degree


Explosion proof grade

Exd [ib] I Mb

Cooling method

Water cooling

Model No.

Model No



Outline dimension diagram

3.3kV series mine flameproof and intrinsically safe inverter

Model No.

Rated power(kW)

Rated input voltage(kV)

Rated output voltage(kV)

Running quadrant

Cooling mode










Two quadrant

Water cooling









Two quadrant

Water cooling




6kV / 10kV series mine flameproof and intrinsically safe inverter

Model No.

Rated power(kW)

Rated input voltage(kV)

Rated output voltage(kV)

Running quadrant

Cooling mode





BPJV1-710/6 BPJV1-1200/6




Two quadrant

Water cooling




BPJV1-710/10 BPJV1-2000/10




Two quadrant

Water cooling





1. The above dimensions are for reference only, please refers to the real object for details;

2. Due to product upgrading, the contents of this manual will be updated regularly. If you need to buy our products, please refer to the latest product manual;


Explosion proof variable frequency speed regulation is a high efficiency and high performance speed regulation mode. By controlling the asynchronous motor (or synchronous machine), it can realize step-less smooth speed regulation and meet the requirements of various production machinery. The use of variable frequency speed regulation in coal mine has become the current trend of mine equipment speed regulation. The main equipment loads of explosion-proof inverter used in underground are: belt conveyor, scraper, winch (monkey car), shearer, all kinds of fans, water supply and drainage pump, emulsion pump, etc.;

The explosion-proof frequency converter is suitable for the speed regulating operation of the motor driven by various mining, transportation, ventilation, drainage and other equipment under the condition of coal dust and gas explosion gas content not exceeding the specified safety content in the coal mine, realizing the functions of motor heavy load soft start and soft stop, step-less speed regulating, energy feedback and energy saving.


Customer Visit

Customer Visiting

Our Service

OEM Service is available

After-sales responding within 24 hours

One to one pre-sales consulting services

We are factory with high-tech professional engineer teams

Technician could be assigned to go abroad to carry out site commissioning and technical training



FGI-Tech, a diversified electrical supplier and manufacturer, provides world class AC motor products - medium voltage drives and explosion-proof AC inverter, advanced power distribution systems and power quality solutions. FGI-Tech is committed to innovating energy technology to make broad contributions to the world in the fields of industry automation and energy power".

The FGI-Tech's medium voltage variable frequency drives, feature a unique technology that allows FGI-Tech to offer a simple, flexible and reliable drive solution. Building on many years of experience, FGI-Tech has demonstrated capability as innovator with an imaginative approach to the design and development of high performance electric power systems, enabling greater affordability, efficiency and reliability.

FGI-Tech's BPJV series mining explosion-proof and intrinsically safe AC inverter as one of the high-tech products which combine digital frequency speed regulation technology and related cooling technology. It is widely used in coal mine with coal dust, gas and other explosive dangerous environment, dragging speed governing operation of motor to achieve soft start and soft stop, stepless speed regulation and other functions when the motor is overloaded.

FGI-Tech's distribution transformers are manufactured using the highest quality materials, employing the most modern and reliable manufacturing practices. These Transformers are used for indoor or outdoor applications and can be provided with off-load and on-load tap changers.

FGI-Tech's power quality products consist of static var generators (STATCOM). SVG is the best solution in the reactive power control field at present and has unparalleled advantages. It makes energy more efficient by stepless power factor correction. It is widely used in the application of Renewable power generation, Electrical welding systems, Industrial production machines and so on.

At FGI-Tech we believe in building strong relationships, helping our customers through the complete product life cycle, from selection and electrical system design through to commissioning assistance and after sales service and support. FGI-Tech supports electricity infrastructure with proven technologies to ensure that energy can be supplied in a stable, reliable, and optimal manner.

With standard controls, critical parts, packaged assemblies, and electrical/electronic components are stocked and ready to ship from FGI-Tech.

FGI-Tech aims to pursue innovation in energy and environment technology and to continue creating high-value-added, environmentally friendly products and systems that allow energy to be used stably and with maximum efficiency.

We hope that you are always holding FGI-Tech to high standards.

FGI Park (4)

Company Info

  • Representative: Mikhail Feng
  • Product/Service: Medium Voltage Drives , Low Voltage Drives , Distribution Transformers , Dry Type Transformers , Static Var Generator , Static Synchronous Compensator
  • Capital (Million US $): 500,000RMB
  • Year Established: 2015
  • Total Annual Sales Volume (Million US $): US$1 Million - US$2.5 Million
  • Export Percentage: 91% - 100%
  • Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
  • No. of Production Lines: 10
  • No. of R&D Staff: 21 -30 People
  • No. of QC Staff: 11 -20 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 5,000-10,000 square meters
  • Factory Location: Middle section of jincheng road, economic development zone, wenshang county, shandong province
  • Contact Person: Ms. Miranda Mu
  • Tel: 86-86--13723461681
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