Measurement of flow electrification in transformer models and its predetermination by theoretical approach

Abstract

The impact of flow electrification in transformers is highlighted, using experimental studies on pressboard pipe models and a multilayer sectional model of a 400 kV transformer. The need for an analytical approach to calculate the potential distribution under actual flow conditions is discussed. The development of a computer program and its application to predetermine the electric stresses in oil-paper interface are described.