Transfer Function Based Recognition of Resonance Overvoltages Transformer Windings

作     者：M. Florkowski J. Furgal 

作者机构：ABB Corporate Research ul. Starowiglna 13A 31-038 Krakow Poland AGH University of Science and Technology Department of Electrical Engineering and Electrical Power al. Mickiewicza 30 30-059 Krakow Poland 

出 版 物：《高电压技术》 (High Voltage Engineering)

年 卷 期：2008年第34卷第12期

页      面：2558-2563页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

主　　题：变压器 绕组 谐振 过电压识别 传输函数 

摘      要：Power transformer insulation systems are subjected to many stresses during normal operation due to lightning and *** the spectrum of incoming surge voltage matches the winding one,the corresponding resonance will be *** external transients occurring in power systems might trigger internal overvoltages with large maximum value in transformer *** having such characteristic have been the root cause of many power transformer *** paper presents an approach to the identification of sensitive zones in the transformer windings based on the measurements of overvoltages inside windings and frequency dependences of admittance of the power *** frequency characteristic of the transformer winding may determine those regions in the frequency *** presented approach might be used both for design optimization and diagnostics of distribution and power transformers.