微机保护装置跳闸回路监视存在的问题及改进措施

The defect of microcomputer protection device tripping circuit supervisor and improvement measures

介绍了奥地利ELIN公司DRS数字式保护装置在天荒坪抽水蓄能电厂跳闸回路监视功能应用的情况。通过与国内外常用跳闸回路监视原理的比较,以500 kV开关及发电机开关的跳闸回路监视为例,详细分析了其在不同工况时的工作原理及目前存在的缺陷,并结合现场应用要求,提出了改进措施,解决了存在的问题,取得了较好的效果。

The application of DRS digital protection device manufactured by Austria ELIN Corporation as tripping circuit supervisor in Tianhuangping Pumped Storage Power Station was introduced. Through the comparison with principles of common tripping circuit supervisors, domestic and abroad, take the tripping circuit supervisors of 500kV switch and generator switch as examples, the working principle and defect of the device at different conditions were analyzed in detail. The improvement measures were proposed combining the site requirement, the problems existing in the system were resolved, and a better result was obtained.