DPS (GZDW) High-Frequency DC Power Supply Unit

DPS (GZDW) Intelligent High-Frequency Power Supply System (“DC Panel” for short) is a highly reliable product designed by Minghan based on its years’ development experience. The system consists of AC input distribution unit, rectification unit, DC output unit, monitoring unit and so on, with the key components like the charging module and monitoring module produced by Emerson. It is mainly applied in power plant, hydropower station, transformation substations, switching station and customer substation. The system is designed to supply DC power for the circuit breaker closing/open as well as the instruments, apparatuses, relay protection units and emergency lighting in the secondary circuit. Its features include:

Special modular design for switching power supply, with redundant hot backup.Ultra-wide input voltage range for better applicability in power grid; applicable for relatively harsh environments.Charging module features hot plugging, convenient for fast on-line maintenance.World latest soft switching technology employed for charging module to ensure high conversion efficiency and low electromagnetic influence.Hardware low-differential automatic current sharing technology; typical value of inter-module output current unbalance is ±3%.CE and EMC approved charging module for reliable and safe use.Intelligent communication technology with powerful communication functions, for easy connection to RTU of transformer substation or DCS of power plant.Optional automatic battery management and protection system for real-time and automatic monitoring on battery working status and parameters.

DPS (GZDW) High-Frequency DC Power Supply Unit