清原抽水蓄能电站接地系统设计与研究

Design and research of grounding system of Qingyuan Pumped Storage Power Station

摘要

在电力系统中为了工作和安全的需要，常需将电力系统及其电气设备的某些部分接地。抽水蓄能电站存在高电阻率、地下厂房和地面开关站等枢纽布置分散、入地短路电流大以及地电位升高等难题。对清原抽水蓄能电站的地网和土壤分别进行建模，通过计算和分析得出本电站的最大接地阻抗，并提出降低接地电阻的措施。

Abstract

In the power system, for the needs of work and safety, it is often necessary to connect some parts of the power system and its electrical equipment with the earth, which is grounding. The ground network and soil of the Qingyuan pumped storage power station are modeled, the maximum grounding impedance of the power station is calculated and analyzed, and measures to reduce the grounding resistance are proposed.

关键词

接地 / 抽水蓄能 / 高电阻率 / 接地阻抗

Key words

earthing / pumped hydro storage / high resistivity / ground impedance

Author summay

金 欢(1987—), 女, 高级工程师, 学士, 主要从事电气一次设计。E-mail: [e-mail]