The GZDW series high-frequency switch microcomputer type DC power cabinet is developed based on the technical specifications of the Ministry of Electric Power's "DL/T459-2000" and "JB/T5777.4-2000" general technical conditions and safety requirements for DC power equipment in power systems, combined with years of experience in the development and manufacturing of DC systems. The rectifier part adopts modular (N+1) redundant design, can be hot swappable, and the monitoring unit adopts high-performance high-speed PLC or industrial computer. The 12 inch touch operation screen and graphical operation interface have the functions of "remote control, telemetry, remote signaling, and remote adjustment". It is a new type of high-quality DC operation power supply. Suitable for substations of 500KV and below, as well as unmanned locations in power plants.
System parameters:
AC input voltage (three-phase five wire) AC380V -10%~+15%
Frequency 50HZ ± 2%
Working environment temperature -5 ℃ -45 ℃
Noise ≤ 45DB
Unequal current distribution ratio ≯ ± 5%
Output voltage range DC198-286V/99-143V
Output current 5A-200A (N+1)
Ripple coefficient ≤ 0.5%
Voltage stabilization accuracy ≤± 0.5%
Steady current accuracy ≤± 1%