AC breakdown voltage behavior of deionized water

authored by

Mohammad Imani, Peter Werle, Frederik Krüger, William Hunter

Abstract

This study presents investigations aiming at substituting conventional air or oil insulated enameled wires with water-filled ones for ac supplied applications. In this regard, twisted enameled pairs were prepared. Accordingly, ac breakdown voltage of the samples immersed in insulating oil, tap water and deionized water was measured and compared with those tested in atmospheric condition. This investigation was performed for two types of magnet wires differentiating in insulation thickness. The experimental results manifested the enhanced breakdown voltage of the hybrid system containing water. The simulation revealed the decrease in electric field in water surrounding the magnet wire in comparison with in air and oil medium, which indicates the excellent immunity of this system against partial discharge outside the coating layer. In contrast, the electric field is intensified in solid insulation as a consequence.

Organisation(s)

High Voltage Engineering and Asset Management Section (Schering Institute)

External Organisation(s)

Siemens AG

Type

Conference contribution

No. of pages

4

Publication date

06.2019

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electrochemistry, Electronic, Optical and Magnetic Materials

Electronic version(s)

https://doi.org/10.1109/ICDL.2019.8796813 (Access: Closed)