某电厂启备变送电时高压开关跳闸原因分析  

Analysis of High Voltage Switch Trip of a Startup/Standby Transformer

作　　者：李鹏 LI Peng(Panji Power Generation Branch of Huaihe Energy and Power Group Co.,Ltd.,Huainan 232082,China)

机构地区：[1]淮河能源淮南潘集发电有限责任公司,安徽淮南232082

出　　处：《安徽电气工程职业技术学院学报》2023年第3期20-23,共4页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：文章对某电厂一期2×660 MW二次再热超超临界机组500 kV启备变倒送电带负荷校相量试验时,其中一套保护动作跳开高压侧开关的原因进行分析,并对试验方案进行修改及优化,可避免保护误动的发生,确保保护校验工作顺利完成。This paper analyzes a set of protection actions jumping off the high voltage side switch during the load phase calibration test of the 500 kV startup/standby transformer reverse power transmission of 2×660 MW secondary reheat ultra-supercritical unit in a power plant,and revises and optimizes the test scheme,so as to avoid the occurrence of protection misoperation and successfully complete the protection calibration work.

关 键 词：启备变 倒送电 相量校验 保护误动 

分 类 号：TM77[电气工程—电力系统及自动化]