Product Usage

Mine flameproof uninterruptible power supply box (hereinafter referred to as "power box") is suitable for underground coal mines in explosive environments, and is specially designed to provide DC power supply completely independent of the power supply system for power supply equipment such as high-voltage explosion-proof switches and low-voltage feed switches in the underground Electrical substation; The power box integrates advanced lithium battery matching technology, charge and discharge management technology, balance technology, explosion-proof technology, communication bus technology, display technology, etc., providing stable and reliable backup power supply for electrical equipment. Connected with KJ series underground power grid monitoring system, it can realize remote automatic control, monitoring and monitoring of power equipment, and realize modern management such as unattended Electrical substation.

Main features

The power box is a square explosion-proof shell with a quick opening structure, equipped with independent wiring chamber, main chamber, and battery box, making operation and maintenance convenient;

The Battery management system has the functions of single battery voltage monitoring, overcharge voltage protection and its failure detection, over discharge voltage protection and its failure detection, total voltage and current display, temperature monitoring, charging overcurrent protection, discharge overcurrent protection, output short circuit protection, battery information acquisition line open circuit protection, equalizing charge control, insulation resistance detection and residual power estimation;

Power isolation, optimization of output power supply, isolation of pollution sources in the power grid;

Internal modular design, seamless backup battery switching, zero power mode switching time, effectively ensuring the safety and reliability of load operation;

DC power supply specially designed for intelligent high-voltage explosion-proof switch and low-voltage feed switch in Electrical substation to supply power for advance and retreat of circuit breaker trolley and on-off of grounding switch;

When the external power supply is restored, it automatically switches to the external power supply and charges the backup power supply;

Each switch is equipped with a power box that is independent of each other, avoiding the installation of intelligent high and low voltage explosion-proof switches becoming a complex project;

The power box has RS485 communication function, and the LCD screen of the human-machine interface can display all fault information, including charging status and output limit disconnection indication.

Main technical parameters