As we all know, the DC system is mainly composed of DC charging screen and battery screen. The role of the valve-regulated battery bank is particularly important. In the event of a grid failure, the battery bank will supply power directly to the load. It is the last gate of DC system.
The technical meaning of power quality as given by the IEEE Technical Coordinating Committee is: Qualified power quality means that the power supplied to a sensitive device and the grounding system is set up so as to be suitable for the proper functioning of the device.
Ensuring safe and high quality power supply, centralized management, centralized maintenance and centralized monitoring are the basic tasks of every professional maintenance personnel, while the following problems caused by power pollution are quite a headache.