660MW机组高压厂用电源切换存在问题分析及对策  

Analysis and countermeasure on problem of HV auxiliary power supply switching for 660MW generating unit

作　　者：刘麟 

机构地区：[1]宁夏京能宁东发电有限责任公司,宁夏银川750400

出　　处：《宁夏电力》2016年第2期47-50,60,共5页Ningxia Electric Power

摘　　要：针对660MW发电机组高压厂用电源切换存在的问题,引入微机型厂用备用电源快速切换装置,根据机组不同运行方式,提出厂用快速切换装置投入方案,实现了2台机组厂用电快速切换和选择性切换。应用结果表明:该方案可以保证机组高压厂用电系统的安全运行,适用于对供电可靠性要求较高且两路供电电源不能快速切换的场合。Aiming at the problem of high-voltage auxiliary power supply switching in 660 MWpower plant,adopts the micro-controlled auxiliary power supply fast switching device,according tothe unit different operation mode,puts forward the switching scheme of auxiliary power supply fastswitching device,realizes fast switching and selective switching of two units. The application resultshows that this scheme can guarantee safe and stable operation for the high-voltage auxiliary powersupply system of units,it be suitable for the high reliability power supply and the two way powersource fast switching.

关 键 词：660MW发电机组 高压厂用电 停机变压器 快速切换装置 

分 类 号：TM621.4[电气工程—电力系统及自动化]