Research of Micro-Grid Power System Grounding and RCD for Energy Saving

After a large number of micro-grid power has been accessed to energy saving, the system would bring new challenges to the power distribution network in planning, design and construction. RCD directly related to the safety of persons and equipment. This article describes the commonly type of grounding protection, and analyze their respective advantages and disadvantages of the structure and characteristics of the micro-grid power supply system, the structure and characteristics of the ground type in the micro-grid power supply system were studied, the choice of RCD were focused on.