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With the continuous accelerating of intelligent factory and the demands of electrical supply system, high reliable, stable and high-quality power supply is the important guarantee to ensure the safe and reliable, stable and intelligent power supply and distribution of the whole plant. Therefore, the active and important considering factor is how to monitor, control and protect the electric system and how to manage the power utilization and electric under normal situation and accident situations.

The special UPS for electric and direct current cabinet system are mainly used to provide direct and current uninterrupted power supply for nuclear power plant, thermal power plant, hydraulic power plant, and other types of power plants. It is required to guarantee the safe and reliable operation of main power house, relay room, MIS system, and other important control equipment.


The power supply guarantee system of the power plant includes KHGZDW series of direct current cabinet, DL31 series of uninterrupted power supply, and by-pass isolated power supply system and battery pack. The direct current cabinet and battery pack system is installed to provide important automobile device (relay protection), and other equipment of the power plant with redundant and backup direct-current power supply. At the same time, the UPS is connected to the direct current cabinet battery pack and the by-pass is equipped with the isolation and voltage stabilization scheme to provide a highly-reliable power supply system for important alternating current loads.