功率负荷平衡保护和零功率切机保护优化的探讨Discussion on Optimization of Power Load Unbalance Protection and Zero-power Tripping Protection
朱青国,孙淑莲
ZHU Qingguo,SUN Shulian
摘要(Abstract):
针对几起发电机功率负荷平衡保护和零功率切机保护的误动事件,分析零功率切机保护和功率负荷平衡保护在应用中存在的问题,提出选用智能型功率变送器及零功率切机保护定值整定原则,并探讨零功率切机保护和功率负荷平衡保护优化应用的新思路,提高保护运行可靠性。
Aiming at several misoperation incidents of power load unbalance protection and zero-power tripping protection of generator, the paper analyzes the problems in their application and puts selection of intelligent power transmitter and setting principle of zero-power tripping protection; besides, it discusses a new idea for application optimization of zero-power tripping protection and power load unbalance protection.
关键词(KeyWords):
零功率切机;功率负荷平衡保护;智能变送器;整定
zero-power tripping;power load unbalance protection;intelligent transmitter;setting
基金项目(Foundation):
作者(Author):
朱青国,孙淑莲
ZHU Qingguo,SUN Shulian
DOI: 10.19585/j.zjdl.2016.08.013
- 零功率切机
- 功率负荷平衡保护
- 智能变送器
- 整定
zero-power tripping - power load unbalance protection
- intelligent transmitter
- setting