220KV变电站接地网的设计

220KV Substation Ground Grid Design

针对目前变电站和发电厂接地网的分布不均匀,以及接地电阻存在一定问题等缺陷,本文则是结合变电站接地网的设计原则,以220KV变电站为参考地点,对接地网进行设计和计算。其中包括对短路电流和工频电阻以及均压带的计算。

In view of the current transformer substation and power plant of uneven distribution of substationgrounding grip,and there are some defects such as grounding resistance problems,this paper is combined with the design principle of the substation ground net.through introducing,with 220 KV substations site for reference,design and calculation of grounding systems located.Including the short-circuit current and resistance and power frequency pressure with calculation.