电力系统自动化Issue(7)：123-126,4.DOI:10.7500/AEPS20130829008
特高压站低压侧保护设备大电流闭锁方案设计
High Current Blocking Design of Protective Devices at Low-voltage Side of Ultra-high Voltage Station
王智勇 1肖锋 1赵晓铎 1胡沙沙 1徐鹏 1齐市委1
作者信息
- 1. 许继集团有限公司，河南省许昌市 461000
- 折叠
摘要
Abstract
The basic features of the ultra-high voltage(UHV)transmission system and the composition of the UHV 110 kV low voltage side are briefly described.The reactive-load compensation equipment of 110 kV UHV station utilizes the load switch,which will switch normal load current but will not interrupt short circuit current.Therefore,the concept of high current blocking function is proposed,and its main criterion is discussed.Starting from protection devices,such as bus protection,capacitor protection and reactor protection,the driving method of tripping outlet contacts for protection action is put forward,when the criterion for the high current blocking function is satisfied.In addition,the trip modes are analyzed when the bus and reactive-load compensation equipment are broken down, respectively. Measures of reserve protection segregating the breakdown progressively are discussed when the blocking action cannot shut down close by due to the high current.关键词
特高压系统/无功补偿设备/继电保护/大电流闭锁/后备保护Key words
ultra-high voltage system/reactive-load compensation equipment/relay protection/high current blocking/back-up protection引用本文复制引用
王智勇,肖锋,赵晓铎,胡沙沙,徐鹏,齐市委..特高压站低压侧保护设备大电流闭锁方案设计[J].电力系统自动化,2014,(7):123-126,4.
