660v(1140v) Flameproof And Intrinsically Safe Ac Soft Starter For Mine

Short Description:

With the application of large equipment such as ventilation fans, pumps and belts in coal mines, there is an urgent need for a product that can reduce the current in the motor starting process, smooth starting, and ensure the safety of the motor and related equipment. Coal mine bottom and surrounding medium contains methane, coal dust and other mixed gas, this special occasion, it is necessary to use mine flameproof soft starter.

660v(1140v) flameproof and intrinsically safe ac soft starter is a very ideal motor starting equipment, which can reduce the large current of fans, pumps, belts, etc. in the starting process, reduce mechanical stress, and extend the service life of the equipment. Compared with the variable frequency deive, it has a very obvious price advantage, which reduces the investment cost for you.

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Product Detail

Product Tags

Features

Mine flameproof safe soft starter is suitable for heavy load soft start of three-phase ac motor with rated voltage 660v(1140v), rated frequency 50 Hz/60Hz and rated current up to 400A in coal mine and its surrounding containing mixed gases such as methane and coal dust. It can meet the control requirements of different load objects such as water pumps, fans, belt conveyors, scraper conveyors, air compressors, condensers, centrifuges, chain drives, screw feeders, lifts, etc. It is a real controllable soft start and soft stop device. Connected with KJ series underground coal mine power grid monitoring system, it can realize remote automatic control, monitoring of power equipment, and realize modern management such as unattended substation.

1. Adopts innovative design of quick-opening type flameproof shell, trolley structure, easy and reliable operation; adopt new PMC solid insulation material, high insulation grade; (The product received a patent);

2. Adopt advanced power electronic components and full digital speed control technology, can realize the closed-loop control of current and speed, and can accurately control the starting current;

3. Using high-performance digital signal processor (32-bit DSP chip) as the control core, advanced electronic voltage transformer high-precision sampling, improve reliability and safety;

4. A variety of soft starting modes (such as: current limiting mode, constant torque, voltage mode, double ramp, pump control, etc.), to meet the needs of different equipment in different fields;

5. With perfect motor protection function, 40 kinds of overload curve selection, can monitor a variety of parameters online, after the bypass is still on the motor running state for detection protection and other functions;

6. It has the advantages of smooth and adjustable starting current, stable starting speed, reliable starting performance, reducing the impact of starting current on the power grid during starting, and avoiding the damage caused by huge mechanical impact on the equipment;

7. The controller has self-test, fault self-diagnosis, event long-term memory function, anti-interference ability;

8. According to the needs of users with the company's production of mine explosion-proof double circuit vacuum electromagnetic starter to achieve one to two, one to three, one to four, two to four mode;

9. Equipped with standard RS485 communication interface, can achieve telemetry, remote communication, remote control, remote adjustment and other four remote functions.

Specification

Item	Specification
Power supply	AC660V/1140V±15%
Power frequency	50/60Hz
Adaptive Motor	Squirrel-cage three-phase asynchronous motor
Starting times	It is recommended not to exceed 20 times per hour
Rated current	200A, 400A

Customer service

1. ODM/OEM service is offered.

2. Quick order confirmation.

3. Fast delivery time.

4. Convenient payment term.

At present, the company is vigorously expanding overseas markets and global layout. We are committed to becoming one of the top ten export enterprises in China’s electrical automatic product, serving the world with high-quality products and achieving a win-win situation with more customers.