Wachsbildung in Transformatoren von Windenergieanlagen

authored by

Moritz Kuhnke, Ernst Gockenbach, Peter Werle

Abstract

Transformer insulations based on silicone or ester fluids in combination with aramid paper allow much higher operating temperatures than conventional mineral oil and cellulose insulation systems. Due to the higher operating temperature, it is possible to construct compact medium voltage transformers that are widely used in wind power plants. However, in recent years, there has been a number of transformer related outages where a wax-like substance was found on the high voltage coil. Thus, different factors influencing the formation of solid ageing products were examined, as well as their effects on the electric and dielectric properties of the insulation fluid. By performing a dissolved gas analysis (DGA), indicators were determined that allow the detection of faults at an early stage.

Organisation(s)

High Voltage Engineering and Asset Management Section (Schering Institute)
Institute of Electric Power Systems

Type

Conference contribution

Pages

590-595

No. of pages

6

Publication date

2016

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Energy Engineering and Power Technology, Electrical and Electronic Engineering