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Flameproof and intrinsically safe dual power permanent magnet vacuum contact switch KJZL-2x400(200)/1140(660)SD for mine

Mine flameproof and intrinsically safe dual power permanent magnet vacuum switch (hereinafter referred to as the contact switch), suitable for explosive environment coal mine underground, rated frequency 50Hz, rated voltage 1140V, 660V, rated current 630A and below three-phase neutral point ungrounded power supply system, It is used for switching between two power supplies in two circuit power distribution system or connecting two circuit bus.

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Flameproof and intrinsically safe dual power permanent magnet vacuum contact switch KJZL-2x400(200)/1140(660)SD for mine


DESCRIPTION

Product use

Mine flameproof and intrinsically safe dual power permanent magnet vacuum switch (hereinafter referred to as the contact switch), suitable for explosive environment coal mine underground, rated frequency 50Hz, rated voltage 1140V, 660V, rated current 630A and below three-phase neutral point ungrounded power supply system, It is used for switching between two power supplies in two circuit power distribution system or connecting two circuit bus.

The protection system adopts advanced microprocessor and large-capacity new chip for dual-chip work, with high-precision data processing and advanced protection algorithm, high protection accuracy and fast response speed. Can complete overload, short circuit (divided into phase sensitive protection, current amplitude protection two categories), gas electric block, wind power block, power metering and other protection functions; The switch is equipped with electric and manual isolation switches in the front stage of the vacuum circuit breaker, which greatly improves the safety and convenience of maintenance operation, and is an ideal replacement of the traditional feed switch.

Connected with KJ series underground coal mine power grid monitoring system, it can realize remote automatic control, monitoring and monitoring of power equipment, and realize modern management such as unattended substation.

Main feature

The shell adopts the translation quick-opening structure, small size (the interior adopts the modular design), easy and fast operation;

The circuit breaker adopts vacuum circuit breaker with permanent magnet mechanism, simple structure and stable performance; With electrical and mechanical manual switching function;

The isolation of the switch and the integrated design of the circuit breaker, not only has the ability of combining, protecting and extinguishing the arc of the vacuum circuit breaker, but also has the power isolation ability of the isolation switch;

With electric entry and exit vehicle function;

Two independent power supplies, two sets of independent flameproof chambers, one side maintenance, the other side can work normally;

Dual power switching system: with two sets of relatively independent control systems, to achieve 1# and 2# independent control, can achieve automatic switching function;

Power supply reliable interlock: with dual power supply interlock and reliable mechanical locking function to prevent misoperation;

Power supply main and standby selection: to achieve the important underground power supply branch - with one standby, to ensure that important equipment does not outage;

With double circuit power supply bus connection function;

All Chinese, LCD real-time display system three-phase voltage, three-phase current, power factor, active power, reactive power, electrical degree, insulation resistance, switching state, fault information and other parameters;

Integrated protector adopts advanced microprocessor and large-capacity new chip, with high-precision data processing and advanced protection algorithm, high protection accuracy and fast response speed.

With short circuit, overload, overvoltage, undervoltage, three-phase imbalance, phase break, selective leakage, leakage block, wind power block, gas block and other protection functions;

The passive wireless temperature sensor is used to measure the temperature of the main loop contact in real time, and the measured temperature is transmitted to the protector through the wireless receiver, which realizes the function of remote temperature monitoring and temperature rise protection in the main loop of the feed switch.

Innovative anti-interference and electromagnetic shielding design to accurately protect power supply systems with inverters;

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

Optional configuration of RS485, CAN, Ethernet interface, 4G/5G/WIFI and coal mine power grid monitoring system communication, with telemetry, remote control, remote control, remote message, remote viewing and other functions, to achieve unattended substation.

Main technical parameters

 

Product Model KJZL-2×(200~630)/1140(660)SD
Rated voltage (V) 1140、660、380
Rated current (A) 2×200 2×400 2×500 2×630
Limiting breaking current (kA) 9 9 15 15
Rated frequency (Hz) 50
Circuit breaker class Permanent magnet vacuum circuit breaker
Isolation mechanism operation mode Electrodynamic isolation
Control mode Local control, remote control, communication control
Intrinsic safety parameter Uo= DC6V lo=100mA Co=10μF Lo=5mH
Overall dimensions (mm)(width × height × depth) 1500×950×700 1500×950×700 1700×950×800 1700×950×800
Weight (kg) 550 550 650 650

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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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