Interpretation of partial discharges at dc voltages

作者：U. Fromm · 发表于：IEEE Transactions on Dielectrics and Electrical Insulation · 年份：1995 · DOI：10.1109/94.469972 · 被引用次数：125 · 研究领域：High voltage insulation and dielectric phenomena、Lightning and Electromagnetic Phenomena、Power Transformer Diagnostics and Insulation

The aim of this paper is to give an overview on partial discharges at dc voltage. A model is presented which describes the stochastic discharge process. The model is experimentally verified for internal discharges and for corona in air. In addition, the classification of discharge patterns is discussed. The 3-dimensional histogram describing the number of discharges depending on the discharge magnitude and on the time to the successive discharge is suggested to be used as a base for discharge recognition at dc voltage. Experimental proof is presented to show the strength of this approach.>