发电机定子绕组单相接地保护配置的探讨  

Discussion of Generator Stator Winding Single-phase Grounding Protection Configuration

作　　者：陶东昕 杨开黎[2] 李金萍 

机构地区：[1]国电鞍山热电有限公司,辽宁鞍山114000 [2]哈尔滨电机厂有限责任公司,哈尔滨150040 [3]国电哈尔滨热电有限公司,哈尔滨150080

出　　处：《大电机技术》2012年第3期25-27,共3页Large Electric Machine and Hydraulic Turbine

摘　　要：发电机定子绕组单相接地保护对保证机组安全运行、提高电力系统的稳定性具有十分重要的作用。本文分析了定子接地故障的主要特征,并在此基础上给出了定子单相接地的保护方法,阐述了各种方法的基本原理、判据以及优缺点,以便为选择合适的保护方式提供参考。Generator stator winding single-phase grounding protection to ensure its safe operation, improve the stability of power system plays a very important role. In this paper, author analyzed the main characteristics of the stator ground fault, and on this basis, given the stator single-phase grounding protection method, expounded the basic principle of various methods, criterion and advantages and disadvantages, which will provide the reference to choose the right protection methods.

关 键 词：定子接地保护 零序电压 3次谐波电压 外加交流电源方式 

分 类 号：TM31[电气工程—电机]