Explosion-proof and intrinsically safe multi-circuit (high-voltage) vacuum electromagnetic starter f

Intelligent Working Surface
Product Overview:
The mine-use explosion-proof and intrinsically safe multi-circuit (high-voltage) vacuum electromagnetic starter (hereinafter referred to as the starter) is suitable for underground coal mines and other surrounding media containing explosive gas environments containing methane and coal dust mixtures. On power supply lines with rated voltages of 3300V, 1140V, and 660V AC 50Hz, the starting, stopping, and speed switching of multiple three-phase AC induction motors or two-speed motors can be controlled, and the motors and their power supply circuits are protected. This equipment is used in comprehensive mechanized coal mining faces, serving as the starting and stop control for shearers, scraper conveyors, crushers, transferrs, emulsion pump stations, and belt conveyors. It can also be used for start-stop control and protection of other equipment.
Performance Features:
1. Adopts quick-open door design, with quick-connect cable connectors for input and output, making assembly and disassembly easy, and replacement and maintenance simple.
2. Uses 10-inch Chinese-English display with WinCE operating system, rich content, simple and intuitive interface design, and strong human-computer interaction.
3. The control system uses an imported programmable controller with a modular design. The main control components are centrally arranged, with independent control and protection for each circuit. Each circuit module does not affect each other, and modules of the same model can be quickly interchanged.
4. Fully modular design: control system modular, sampling system modular, drive unit modular, and power supply system modular. Each module can be quickly replaced if faults occur, and modules of the same model can be interchanged, making maintenance and repair convenient and fast.
5. Comprehensive protection functions, including wind power gas interlock, multiple temperature protections, contactor adhesion backup protection, cover-opening power-off protection, oil level, oil temperature, liquid level display and protection, and pipe burst alarm protection according to mine requirements.
6. Multiple communication methods integrated into the intelligent mining system to achieve interconnection and interoperability of mine equipment, enabling six remote functions: telemetry, remote signaling, remote adjustment, remote control, remote testing (remote testing), and remote viewing (video monitoring). It enables remote start-stop control, parameter setting, automatic fault alarms, remote reset, remote testing, and other functions. Multiple communication methods are provided, and 5G communication mobile app terminal operation is also supported. Achieve unattended operation and automation of power supply equipment.
7. Uses a uniquely designed isolation commutation switch, which breaks through two levels: vacuum and air contacts, providing a clear breaking opening to ensure isolation safety. It also has a certain load breaking capability, giving it good breaking capability for safety, stability, and reliability.
8. Each circuit, control port, and operation control mode can be freely combined; simple operation parameter settings ensure perfect ergonomic design, flexible and convenient use.

9. The newly launched low-power series features high integration, compact size, low cost, and high reliability. It is suitable for low-current motors such as fully mechanized mining face pump stations, underground substation pump stations, belt conveyor head pumps, inverter water-cooled circulation pumps, inverter fans, permanent magnet motors water-cooled circulation pumps, and low-power motor scenarios such as tunneling machines, anchor rod machines, and water pumps at the tunneling face. Can replace multiple traditional 80 switches, greatly reducing footprint. And greatly reduce installation, management, and maintenance costs.