Special problems of 220 kV digital substation design

被引：0
|
作者：
Ma, Yong-Fang [1 ]
Chen, Ming [2 ]
机构：
[1] Ultra High Voltage Transmission and Transformation Subcompany of Hebei Electric Power Corporation, Shijiazhuang 050070, China
[2] Hebei Electric Power Corporation, Shijiazhuang 050021, China
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2010年 / 38卷 / 01期
关键词：
Electric power system protection - Surge protection - Electric substations;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper introduces features of 220 kV digital substation, such as larger double protection and longitudinal differential protection, analyzes the special problems, including the loop of current and voltage, the protection tripping way, on both sides of line protection, and isolation of protection and circuit breaker, and proposes solutions. For 220 kV digital substation inconsistent with the existing order, it analyzes the provisions of the rules and explains the reasons of the problem on both sides of the line protection software version. Considering running habits, it installs srap in the protection and circuit breaker smart terminal devices respectively and proposes the way of isolation of protection and circuit breaker.
引用
收藏
页码：28 / 31
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