660V 1140V mine flameproof and intrinsically safe frequency converter series

$40000.00

≥1 Set/Sets

Min. Order:: 1 Set/Sets

Min. Order:: 1 Set/Sets

Transportation:: Ocean, Land

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Basic Info

Payment Type:	T/T
Incoterm:	FOB
Transportation:	Ocean,Land

Product Description

Product overview

The main circuit adopts two-level / three-level topology, and the main power devices are well-known brands with high reliability. It is mainly used to control and adjust the speed and torque of three-phase AC asynchronous motor. High performance vector control technology, low speed and high torque output, friendly human-computer interaction, stable performance. It can be used in coal mine, coal dust, gas and other explosion dangerous environment. It can realize the soft start, soft stop and speed control of the motor.

630 1140

BPJ1-630/1140

BPJ1-400/1140

Product features

High operation reliability

The key processes are produced in dust-free workshop, and the production process is strictly guaranteed;

Strict factory inspection and process control.

Convenient installation and maintenance

The internal main components are modularized and split design, which makes it easy to disassemble between modules, convenient for daily inspection, maintenance and repair, saving time and effort.

It has the function of reactive power compensation

660V, 1140V inverter standard input, output filter reactor, effectively suppress high frequency interference;

The four quadrant inverter is equipped with a special LCL filter to ensure that the interference of the inverter to the front-end power supply and distribution equipment is minimized and meet the requirements of the national standard;

Through the feedback explosion-proof inverter to detect the power quality of the power grid and compensate the reactive power in the line, the problems of low power factor and large line loss in local coal mines are solved. By compensating the loss of power supply line, the energy consumption is reduced.

There are mature treatment schemes for motor insulation damage

The 1140V explosion-proof inverter adopts three-level structure, the voltage rise rate DV / DT is reduced to half of the two-level inverter, the output voltage level increases, the relative amplitude of each level decreases, the voltage change decreases, the current pulsation decreases, which indirectly reduces the electromagnetic interference, greatly reduces the insulation damage of the inverter output to the motor, and effectively solves the problem of motor insulation damage, extend the service life of the motor.

IGBT neutral clamping technology

By clamping the turn-on and turn off of IGBT, the current flowing into or out of the neutral point of DC side capacitor when the output voltage of a certain phase is zero is eliminated. The problems of neutral point potential drift and poor output voltage waveform are solved.

It has excellent power balance function to ensure the balanced output of each motor in the multi machine drive system, and the unbalance degree is less than 3%

It has excellent closed-loop (PID) control function to meet the requirements of pumps

Technical parameter

Input	Phase, Frequency, Voltage	Three phase, 50/60Hz, 660V/1140V
Input	Tolerance	Supply voltage ± 20%，50-60Hz ± 5%, voltage unbalance rate < 3%
Output	Rated voltage	0-Input voltage
	Rated current	100% rated current continuous
	Output frequency	0~120Hz
Basic control performance	Control mode	V/F, SVC
	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	1:100 (SVC)
	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
Input	Digital input	8 channels
Input	Analog input	4 channels:0-10V/2-20mA selectable
Output	Digital output	6 channels
Output	Analog output	4 channels: 0-10V/2-20mA selectable
Protection	Over voltage, under voltage, over-current, overload, short circuit, over temperature, leakage blocking, lack of phase protection and other functions
Running	Control command	Keypad, Terminal, Communication(switching)
Running	Speed command	10 kinds of frequency sources: digital, analog voltage, analog current, communication. It can be switched in many ways
Display	LED display	Display setting parameters
Display	HMI	Display operation status: output frequency, output current, temperature, operation curve, alarm information, fault analysis, etc.
Environment	Location	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.
	Altitude	Less than 2000 meters; atmospheric pressure is (0.08 ~ 0.11) MPa.
	Temperature	0 ℃ ~ + 40 ℃ (above 40 ℃, derating)
	Humidity	Less than 95% RH (+ 25 ℃), no condensation
	Vibration	In the place without significant vibration and impact
	Storage temperature	- 20 ℃～ + 60 ℃
Structure	IP degree	IP54
	Explosion proof grade	Exd [ib] I Mb
	Cooling method	Water cooling

Model No.

Model No 1140

Dimension

Dimension

660V/1140V series mine flameproof and intrinsically safe inverter

Model No.	Rated power (kW)	Rated input voltage(V)	Rated output voltage(V)	Running quadrant	Cooling mode	Dimension
Model No.	Rated power (kW)	Rated input voltage(V)	Rated output voltage(V)	Running quadrant	Cooling mode	W	H	D
BPJ1-132/660(K)~ BPJ1-250/660(K)	132~250	660	0~660	Two quadrant Four quadrant	Heat pipe cooling + forced air cooling	2316	1218	1206
BPJ1-75/1140(K)~ BPJ1-400/1140(K)	75~400	1140	0~1140	Two quadrant Four quadrant	Water cooling	1500	1292	878
BPJ1-315/1140(K)~ BPJ1-630/1140(K)	315~630	1140	0~1140	Two quadrant Four quadrant	Water cooling	2236	1218	979
BPJ1-630/1140	630	1140	0~1140	Two quadrant	Heat pipe cooling + forced air cooling	2562	1320	1291
BPJ1-710/1140~ BPJ1-1250/1140	710~1250	1140	0~1140	Two quadrant	Water cooling	1600	1300	1000
BPJ1-800/1140K~ BPJ1-1000/1140K	800~1000	1140	0~1140	Two quadrant	Water cooling	3300	1300	1000

Note:

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;

Applications:

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.

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