Mine flameproof and inherently safe high voltage soft starter is mainly used in coal mines with methane, coal dust explosive danger, heavy load soft start control and protection for high voltage motor frequently started in the power supply system with rated voltage 10kV(6kV), frequency 50hZ, rated current 400A and neutral point of three-phase AC not directly grounded.
Soft starter has overcurrent, short circuit, leakage, insulation monitoring, undervoltage, overvoltage protection functions, the movement adopts foreign original imported devices, can accurately control the starting current, reduce or avoid the impact on the power grid and machinery; Soft start and soft stop can be realized by using voltage ramp starting. And the design has this control, remote control, quick door opening, complete functions, reliable action. Flameproof performance in accordance with GB/T 3836.1--2021 "Explosive Atmospheres Part 1: General requirements for equipment", GB/T 3836.2--2021 "Explosive atmospheres Part 2: Equipment protected by flameproof housing" d ", GB/T 3836.4--2021
"Explosive Atmospheres Part 4: Equipment protected by intrinsically safe "i" requirements. Technical performance in line with GB/T 14808--2016 "AC high voltage contactor and contact-based motor soft starter".
1. Adopts innovative design of quick-opening type flameproof shell, trolley structure, easy and reliable operation;
2. Flameproof soft starter adopts new PMC solid insulation material, high insulation grade; (The product received a patent);
3. 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;
4. 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;
5. 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;
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. Flameproof soft starter equipped with standard RS485 communication interface, can achieve telemetry, remote communication, remote control, remote adjustment and other four remote functions.
Item | Specification |
Power supply | AC6kV/10kV±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 |
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.