AC Vacuum Soft Starter for Mine Flameproof and Intrinsicaly Safe

• Customization: Available
• Certification: ISO9001, CCC
• Protection: Flameproof
• Model NO.: QJR8
• Installation: Vertical
• Housing: Stainless Steel
• Currency: RMB or USD
• Language: Chinese, English, Russian
• Loading Port: It Depends
• Rated Voltage: 660-1140V
• Protection Grade: IP54
• Rated Current: 200-630A
• Transport Package: Cartons or Others
• Specification: As required
• Trademark: HZEC
• Origin: China
• Production Capacity: 30000 Sets/Month

Product Description

Company Profile

Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.

Product Description

This series of soft starters is suitable for the soft start and soft stop of electric motors in the three-phase AC power supply system with AC 50Hz,rated voltage up to 1140V, rated current up to 630A, neutral point not grounded or grounded by arc suppression coil in the coal mine and the surrounding medium containing methane, coal dust and other explosion hazards, so that the motor can start smoothly under the starting characteristics required by the load and reduce the impact of starting current on the power grid and load equipment. It can save electric energy under light load. It is the most ideal alternative product to replace the traditional direct start hard start), star triangle, reactor, auto-coupling decompression, two-speed and other starting methods.It is widely used in the control of large heavy load equipment in harsh environments such as large coal mines, large steel plants, petrochemical industry, sewage treatment plants, power plants,coal preparation plants, and can freely choose the soft start mode, soft start curve, and soft start time.

Product Parameters

 

Model	Rated voltage (V)	Rated current (A)	Protection level	Starting voltage	Initial current	Soft start time	Outer diameter and quantity of cable entry		LxWxH(mm)	KG
							Major loop	Control loop
QJR2-200	380 660 1140	200	Primary; Light load; Standard; Heavy load; Senior; Close imbalance	30%-70% Quota Voltage	0.5-4 Times Quota Current	0-60s Adjustable	21-51(4)	12-19(2)	650x465x836	170
QJR2-315		315					42-78(4)	12-19(3)	800x610x885	310
QJR2-400		400
QJR2-500		500					42-78(4)	12-19(4)	870x690x970	450
QJR2-630		630

Main Features

Trolley Structure
High-performance silicon controlled components are used as the main circuit conduction components, and are installed on the patented trolley mechanism with reversing switch, vacuum contactor, current transformer, transformer and other components. The structure layout is reasonable, and the components or troley are highly interchangeable, which is convenient for installation and maintenance.

Intelligent Soft Start:
The advanced microcomputer intelligent protector is adopted, which has the protection functions of overload, short circuit, undervoltage,overvoltage, phase loss, three-phase unbalance, leakage locking, temperature, locked rotor, thyristor breakdown, etc. The advanced thyristo trigger control technology can realize the current imit start, slope start, voltage start, jump+voltage star.,jump+current start and other soft start control modes of the motor, which can meet the requirements of fans,water pumps, gas drainage pumps control requirements for different load equipment such as belt conveyor.

Freely-Adjustable:
With different loads, the soft start mode and soft start time are freely adjustable. After the soft start process is completed, it will automatically switch to the bypass vacuum contactor for operation.

LCD:
The full-Chinese large-screen LCD can display and monitor the three-phase voltage, current, zero-sequence voltage, zero-sequence current active power,reactive power, power factor, electrical degree, insulation resistance and other parameters of the power grid in real time, as well as the fault type, fault time and fault parameters of the equipment, and has the function of fault memory and query.

Four Remote Function:
The parameter setting can be set locally by pressing the button on the side of the main switch and each branch switch screen, or through the centralized control button on the side of the centralized control panel, or can be set remotely by RS-485 interface, or Ethernet optical fiber (optional) and communication with the upper computer of the monitoring system. The remote star and stop can realize the "four remote" function to achieve unattended substation.

Quick-opening mechanism:
The shell adopts the patented screw door opening mechanism, and is equipped with reliable mechanical interlocking, electrical locking, manual tripping and other devices.

Safety Module:
The control circuit adopts intrinsically safe and safe module.

Explosion-proof grade:
Explosion-proof type: Exd I Mb Protection grade: IP54

Certifications