GZDW Intelligent High Frequency DC Control Panel

The system features dual AC inputs with automatic switching to ensure continuous operation. It supports an ultra-wide input voltage range, making it highly adaptable to various power grids and suitable for relatively harsh environments.

Utilizing high-frequency switching power supply technology and a modular design, it offers N+1 hot standby redundancy for enhanced reliability. The rectifier modules support hot-swappable operation under live conditions, enabling convenient and efficient maintenance.

The charger module employs the latest international software switching technology, delivering high conversion efficiency and low electromagnetic interference. Hardware-based low differential current sharing technology maintains a typical current imbalance of ±3% among modules.

The monitoring system offers optional LCD or touchscreen interfaces with user-friendly, rich graphical displays for simple and convenient operation. It provides comprehensive real-time monitoring and control, including system configuration and information queries. Remote monitoring functions—“remote measurement, remote control, remote signaling, and remote adjustment”—can be implemented via backend or remote platforms, enabling unattended operation.

Battery management is precise, with automatic compensation for battery voltage, charge/discharge current, and temperature. It features over/under voltage, over-temperature, and fault alarms to ensure the battery operates in optimal condition and prolong its service life.

The system includes manual and automatic voltage regulation functions and branch insulation detection capabilities. Robust lightning protection and high-level insulation measures guarantee system and personnel safety.

Communication interfaces include RS232 and RS485 ports, with protocol options for RTU, CDT, and MODBUS.

GB/T 17478 ESGB/T 459 Direct Current Power Supply Equipment for Electric Power

A DC power supply unit provides power for control loads, power loads, and DC emergency lighting loads, serving as the foundation for modern power system control and protection. The DC unit consists of AC distribution units, charging module units, silicon chain voltage reduction units, DC feeding units, monitoring module units, and insulation monitoring units.