摘要
启备变保护作为发变组厂用电保护的一部分,对保障发电厂用电的安全可靠运行十分重要。PCS系列微机式发变组保护装置已在国内大型机组得到广泛应用,取得了良好效果。文章介绍了应用于某电厂220 kV启备变67的PCS-985微机保护装置的配置及特点,并对启备变差动保护功能、启备变保护系统的跳闸逻辑做了详细说明,提出了现场调试中应当注意的问题及解决方法。
Start-up and standby transformer protection,as a part of power consumption protection of generator and transformer substations,is very important to ensure the safe and reliable operation of power consumption in power plants.PCS series microcomputer type generator-transformer unit protection device has been widely used in domestic large-scale units,and achieved good results.This paper introduces the configuration and characteristics of the PCS985 microcomputer protection device used in a 220 kV startup and standby transformer 67 in a power plant,and gives a detailed description of the differential protection function of the startup and backup transformers and the trip logic of the startup and backup transformer protection system.Problems and solutions that should be noted.
出处
《电力系统装备》
2022年第6期29-31,共3页
Electric Power System Equipment
关键词
微机保护
启备变
配置情况
保护联跳逻辑
microcomputer protection
startup and standby transformer
configuration situation
protection connection jump logic
