一种分相式电流差动微波保护新判据  

A NEW CRITERION OF CURRENT DIFFERENTIAL MICROWAVE PROTECTION IN SPLIT PHASE

作　　者：罗姗姗[1] 张源会 

机构地区：[1]天津大学电力及自动化工程系

出　　处：《电力系统及其自动化学报》1995年第1期49-58,共10页Proceedings of the CSU-EPSA

摘　　要：本文提出一种新的分相式电流差动保护判据详细介绍了其性能以及实现此判据的电路，最后给出了数字仿真结果及实验结果．文中提出的判据简单明了，保护范围内故障灵敏度高，外部故障时可靠不动，反应过渡电阻能力强，并且具有回路简单、整定调试便等优点．This paper proposes a new criterion of current differential protection in split phase. The criterion performance is analyzed and tested using the corresponding hardware. The result of digital simulation calculation and the result of test are provided at the end of the paper. The proposed criterion can maintain the external fault selectivity and enhance the internal fault sensitivity. On the other hand, the proposed criterionhas capability to response to high transition impedence. The hardwave have advantages in simple circuitand easy adjustability.

关 键 词：电流差动 微波保护 电力系统 

分 类 号：TM77[电气工程—电力系统及自动化]