基于10KV电网系统中性点接地电阻柜的研究与应用

　　基于10KV电网系统中性点接地电阻柜的研究与应用

　　Based on the 10 kv power gird system the research and application or neutral grounding resistance ark

　　(Inner Mongolia power(group) co.LTD.of ordos electric power bureau,017000,china)

　　Abstract:the neutral poiont grounding resistance ark is our according to the region in recent years the growth of the load change and accident type and to ensure the reliable operation of the new equipment.Based on 110 kv substarion 10 kv system side no neutral point grounding happens when single-phase grounding fault cannot be effectively removed the grounding capacitive current hazards caused by faulty line distribution network power supply reliability issues, introduced the application of neutral grounding resistance ark management,artificially create a low pressure side of the neutral point to achieve zero sequence current protection channel,by acting on crate a low pressure side of the neural point to achieve zero sequence current protection channel,by acting on the ground fault of zero sequence current protection configuration, so as to provide effective guarantee for regional distribution network safe and teliable power supply.

　　Keywords:neutral point grounding resistance ark;Zero sequence current protection; Single-phase grounding;Power distribution network.