Product Introduction

The BXJ series flameproof and intrinsically safe high-voltage permanent magnet mechanism vacuum switches for mobile substations in mining applications are equipped with multiple protection functions, including overload, short circuit, overvoltage, undervoltage, leakage, leakage locking, phase loss, over-temperature, wind power and gas locking, as well as emergency shutdown of the upper-level power supply. They are particularly suitable for power supply of underground equipment in large mines with high requirements for safety and automation.

Feature

• Effective Explosion Protection：Three independent flameproof chambers are designed, with control circuits and main circuits arranged in separate chambers to achieve reliable isolation.

• Convenience and Reliability：The entire series adopts high-voltage copper bar terminals, featuring large current-carrying capacity and high reliability. The 45° inclined arrangement ensures convenient and reliable wiring.

• Integrated Module：An integrated module consisting of a 7-inch color touch screen, PLC controller, and DSP sampling unit is adopted, offering high reliability and easy maintenance. The setting value can be continuously adjusted.

• High Compatibility：A model isolation module integrated with RS485 and RJ45 interfaces is configured to realize intrinsic safety output of communication ports, enabling easy connection to intrinsic safety instruments and equipment. It is compatible with multi-system joint control.

 Advantage

• Intelligent Control：The PLC intelligent protection system features self-inspection, fault diagnosis, patrol inspection and memory functions. It monitors and digitally displays operating status and fault indicators in real-time, facilitating system usage, maintenance, fault judgment and handling.

• Safety and Reliability：Current can be continuously set with a step value of 1A, enabling safe and reliable live maintenance, operation and upkeep. All faults trigger the high-voltage side vacuum circuit breaker to trip via signal lines, reducing breaking current.

• Multiple Protections：Equipped with protection functions including overload, short circuit, overvoltage, undervoltage, leakage, leakage locking, phase loss, over-temperature, wind power and gas locking, emergency shutdown of upper-level power supply, etc. It can also protect against faults fed back from the low-voltage side of the mobile substation.

• Modular Design：Comes with standard RS232/485 communication interfaces, capable of real-time monitoring and transmitting digitally displayed operating status and fault indicators. It integrates with mine automation networks to form a complete mine automation monitoring system.