低压综保装置在枕头坝低压厂用电系统中的应用  

Application of integrated protection device in low-voltage station service power system

作　　者：秦茂国 田若朝 

机构地区：[1]国电大渡河枕头坝水电建设有限公司,四川乐山614700

出　　处：《人民长江》2014年第24期76-78,88,共4页Yangtze River

摘　　要：为了确保水电站能够安全稳定运行,增强电力生产厂用供电的可靠性,对低压综保装置(微机综合保护装置)在厂用电系统中的必要性展开了研究。介绍了枕头坝一级水电站机组自用电的接线形式,以及机组自用电电源进线开关二次保护及备自投装置上的低压综保装置原理;对低压综保装置在电站的适用性与常规的断电器保护方式开展了对比分析;同时,对实际设备进行了动作测试,以验证低压综保装置的适用性及其应用效果。In order to ensure the safe and stable operation of Zhentouba Ⅰ Hydropower Station,the necessity of low-voltage integrated protection device in station service power system is researched to enhance the reliability of the power supply for power production.The paper introduces the connection mode of power service for generating units in the station,as well as the principles for the second protection of inlet wire switch of unit service power and low-voltage integrated protection device on BZT device.Furthermore,the applicability of the protection device and conventional relay protection methods are analyzed,and the test of fault simulation for the actual devices is conducted,so as to verify the applicability and its effect of low-voltage integrated protection device.

关 键 词：低压微机保护装置 电力系统 过流保护 接线方式 枕头坝一级水电站 

分 类 号：TK731[交通运输工程—轮机工程]