The GZDW series DC panel utilizes nickel-cadmium batteries, float chargers, and is equipped with automatic detection and alarm systems. It features a long service life, no pollution, easy maintenance, stable voltage, ultra-low internal resistance output, ability to withstand high current surges, strong adaptability, and high reliability. It is an advanced DC operation power supply device, widely applicable in substations and power plants of 500kV and below, as well as in sectors such as metallurgy, mining, petroleum, broadcasting and television, computer rooms, underground railways, and high-rise buildings. It serves as a DC control, signal power supply, and power source for fault protection and circuit breaker operation mechanisms.