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Flameproof and intrinsically safe multi-loop vacuum electromagnetic starter QJZ-480/1140(660)-4 for mines

Suitable for underground coal mine in explosive environment, in rated frequency 50Hz, rated voltage 1140V, 660V, rated total current up to 630(480)A and below power supply system, Control several small belt conveyor, small scraper, small water pump, variable frequency - body machine lubrication pump, cooling fan, hydraulic coupler, brake holding, tensioning and other equipment, the controlled motor can achieve single control, multiple program control, and protect the motor and power supply line, to achieve the purpose of automatic control of power supply equipment.

Keywords:

Flameproof and intrinsically safe multi-loop vacuum electromagnetic starter QJZ-480/1140(660)-4 for mines


DESCRIPTION

Product use

Suitable for underground coal mine in explosive environment, in rated frequency 50Hz, rated voltage 1140V, 660V, rated total current up to 630(480)A and below power supply system, Control several small belt conveyor, small scraper, small water pump, variable frequency - body machine lubrication pump, cooling fan, hydraulic coupler, brake holding, tensioning and other equipment, the controlled motor can achieve single control, multiple program control, and protect the motor and power supply line, to achieve the purpose of automatic control of power supply equipment.

Main feature

Small combination switch designed for small belt machine, small scraper, small water pump, belt auxiliary motor and other small power load, to achieve centralized control and reliable protection of the motor;

Combination switch adopts quick-opening, contactor full package pull-out structure, modular, universal, strong interchangeability, convenient disassembly and efficient, easy to use and maintain;

Adopt high-end embedded one-body industrial computer to realize centralized control and communication management of each loop. 7-inch high brightness TFT LCD, full Chinese multimedia interface, real-time measurement and display of system voltage, three-phase current, fault status, etc. Menu operation, with online query, modify technical parameters and other functions;

All analog signals are processed as digital signals, with strong anti-interference ability, simple wiring, large amount of information, reliable and accurate control characteristics; The output circuits are equipped with independent functions such as short circuit, overload, phase break, over and under voltage, leakage lock, pilot protection, fault self-diagnosis, contactor bonding, fault memory, etc.

With pilot, program, network (RS485 and Ethernet) control, flexible and convenient;

It can realize single-loop independent control, multi-loop program control, on-line control, mutual backup, mutual switching and other operating modes.

With water level detection control device and water level probe, can set high, middle and low water level to achieve automatic drainage function, especially suitable for centralized control and protection of several small pumps;

The starter has the function of leakage protection and branch selective leakage protection, which can effectively prevent large area power failure caused by leakage failure;

RS485, CAN, Ethernet interface, 4G/5G/WIFI can be configured to communicate with the coal mine power grid monitoring system, with telemetry, remote control, remote control, remote message, remote viewing and other functions to achieve unattended substation.

Main technical parameters

 

Product Model QJZ-480/1140(660)-4 QJZ-630/1140(660)-8(6)
Rated voltage (V) 1140、660、380
Total rated current (A) 480 630
Input circuit number 4 6、8
Lead-in device platform-type
Contactor module capacity (A) 80、120
Auxiliary (Lighting) Power Supply (V) 127、220
Reveal 7 inch Chinese color LCD screen
Control mode Near control (button) mode, remote control mode, network mode
Test function Short-circuit test, leakage test, leakage block test
Overall dimensions (width × height × depth)(mm) 860×920×700 1100×920×700
Weight (kg) 380 500

Related products


Longyuan Xinke Electric Co., Ltd


+86-391-6836868

+86-391-2193665

Add:Zone B, Tiantan Venture Park, High tech Zone, Jiyuan City, Henan Province

Tel:+86-391-6835588

Email:lyxkdq@163.com

 

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Who are we?

The company is committed to providing advanced technology, stable quality, safe and reliable mining explosion-proof electrical equipment and automation systems for the mining industry. The company's products cover nearly 100 specifications and models of various high and low voltage switches in coal mines, and are suitable for various application scenarios in Electrical substation, roadways, and mining faces.

Longyuan Xinke Electric Co., Ltd

+86-391-6836868

+86-391-2193665

Add:Zone B, Tiantan Venture Park, High tech Zone, Jiyuan City, Henan Province

Tel:+86-391-6835588

Email:lyxkdq@163.com

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