Analysis of Protective Relay Allocation and Operation in 220 kV and Above AC Systems

作     者：Zhou Zexin Zhang Lie Lv Pengfei Shen Hua Wang Delin Li Yanfei Liu Yu Wu Chunliang Shen Xiaofan Yang Guosheng Wang Wenhuan Yao Xue Liu Yadong 

作者机构：China Electric Power Research Institute National Power Dispatching and Control Center 

出 版 物：《Electricity》 (电气（英文版）)

年 卷 期：2014年第25卷第5期

页      面：1-7页

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 

主　　题：power system relay protection statistics and analysis malfunction 

摘      要：This paper provides a comprehensive summary of the scale, allocation and operation situation of relay protection equipment of the 220 kV and above AC systems run by the State Grid Corporation of China in 2012 and 2013. It also analyzes the changing trend of the relevant indices of relay protection during the five years from 2009 to 2013. At the same time, it analyzes in detail two typical relay malfunction events in 2012 and 2013.