单相对地短路时电网中零序功率的探讨  

Research of Zerosequence Power in the ElectricNetwork When Singlephase Grourvoed

作　　者：秦光培[1] 

机构地区：[1]昆明理工大学自动化系

出　　处：《昆明理工大学学报（理工版）》1998年第2期77-80,共4页Journal of Kunming University of Science and Technology(Natural Science Edition)

摘　　要：单相接地保护“直到目前为止，……，还没有一种完善的保护原理，这仍然是一个重要的研究课题．”文中详细分析了单相对地短路时电网中的零序功率，得到了零序功率的具体公式，绘出了短路时零序功率的分布图，在此基础上介绍了零序功率方向保护的基本原理．Until today,We havent yet get one successful protectional theorem about the singlephase grounded.But the topic about this problem is still be a great reshed topics.this paper in detail analysised yero-sequenct power in the electric network when have beenshorted circuit with singlephast grounded. formula of yerosequence power is and abtained the distributed diagram of yero sequen power,On this basis,te fundamental theorem about directional protection of yero-sequece power is proaucee.

关 键 词：中性点绝缘电网 零序功率 瞬时值 单相接地保护 

分 类 号：TM771[电气工程—电力系统及自动化]