局部放电脉冲波形特性分析  

Pulse Shape Characteristic Analysis of Partial Discharge Signals

作　　者：郑重[1] 谈克雄[1] 高凯[1] 

机构地区：[1]清华大学,北京100084

出　　处：《高电压技术》1999年第4期15-17,20,共4页High Voltage Engineering

摘　　要：根据局部放电特性，设计了测量电阻和测试回路。经检验，表明该回路具有灵敏度高、测量准确、对脉冲波形畸变小等优点，可用于测量局部放电脉冲电流波形。采用此装置测量了空气中尖板电极电晕及火花放电、电机模型线棒中气隙放电、线棒端部表面电晕及滑闪放电和油中尖板电极放电的脉冲电流波形，并对各类放电脉冲的主要时间特征进行了归纳。According to the features of partial dischargepulses an experimental circuit with mcasuring resistor is de-signed. This experimental circuit has been carefully testedand can be used in extracting pulse signal of partial dis-cbarge. With help of this experimental setup, the puiseshape of following types of partial discharge are investigat-ed: discharges within pinplane electrodes in air, cavity dis-charge endwinding surface discbarge of the stator windingbar models and the discharges within pin-plane electrodes inoil. The different time features of them are concluded andcould be considered as a basis of pattern recognition of dis-charges.

关 键 词：局部放电 脉冲电流 脉冲波形 模式识别 

分 类 号：O461.2[理学—电子物理学]