低压交直流混合配电系统中接地故障保护分析

Analysis on Grounding Fault Protection of Hybrid Low Voltage Distribution System with AC/DC

低压混合配电系统装置不再是一个孤立的配电系统,同时需要与现存的其他配电系统保持联络,因此低压配电系统的接地保护需要考虑与其他电源系统的接地装置间的联系与配合。分析了低压交直流混合配电系统的接地,阐述了混合配电系统的接地故障保护。

The hybrid low voltage distribution system is not an isolated distribution system,and it should have connection with other existing power distribution systems.Therefore,the grounding fault protection of low voltage power distribution system needs to consider the connection and cooperation with the grounding devices of other power systems.The grounding of low voltage AC/DC hybrid distribution system was analyzed.The grounding fault protection of hybrid distribution system was expounded.