摘要
DGT801系列数字变压器差动保护在现场安装调试过程中出现卡壳情况,为保证今后调试及事故处理的需要,针对国内微机变压器差动保护DGT801系列保护的接线和算法进行分析,并以某水电站双变差动保护为例,对如何使用一台三相保护校验仪做比率制动试验方法进行了讨论,通过该方法可以来解决该类型保护调试。
The differential protection of DGT801 series digital transformer appears stuck during the prc, cess of on-site installation and debugging. In order to ensure the future needs of debugging and dealing with the accident, analysis was made to the wiring and algorithm of DGT801 series protection of domestic microprocessor-based differential protection, and taking dual-transformer differential protection of certain hydraulic power for example, this paper discussed how to use three-phase calibrator to do a ratio of braking test to solve the problem of this kind of protection debugging.
出处
《电工电气》
2012年第9期47-49,共3页
Electrotechnics Electric
关键词
差动保护
补偿
平衡系数
比率制动
differential protection
compensation
equilibrium coefficient
ratio of braking
