A novel technique for partial discharge and breakdown investigation based on current pulse waveform analysis

Author

Okubo, Hitoshi ; Hayakawa, Naoki

Author_Institution

EcoTopia Sci. Inst., Nagoya Univ., Japan

Volume

12

Issue

4

fYear

2005

Firstpage

736

Lastpage

744

Abstract

A novel technique for partial discharge (PD) measurement and analysis (PD-CPWA; PD current pulse waveform analysis) is developed and introduced in this paper. PD-CPWA is expected to be utilized to discuss PD mechanisms and physics in electrical insulating materials, focusing on the PD current pulse waveform and its time transition from PD inception to breakdown (BD). In this paper, the concept and principle of PD-CPWA are described, and the applications of PD-CPWA to (1) epoxy spacer samples under thermal and electric combined stresses in GIS, (2) creepage PD on epoxy spacers in SF₆ gas and (3) liquid nitrogen/polypropylene laminated paper composite insulation system for high temperature superconducting cables are introduced and discussed.

Keywords

SF₆ insulation; electric current measurement; gas insulated substations; paper; partial discharge measurement; polyethylene insulation; superconducting cables; thermal stresses; waveform analysis; GIS; PD; SF₆; SF₆ gas; breakdown; composite insulation system; creepage; current measurement; current pulse waveform analysis; dielectric materials; electric stress; electrical insulating material; epoxy spacer sample; high temperature superconducting cable; laminated paper; liquid nitrogen-polypropylene; partial discharge measurement; thermal stress; time transition; Current measurement; Dielectric liquids; Dielectrics and electrical insulation; Electric breakdown; Geographic Information Systems; Partial discharge measurement; Partial discharges; Physics; Pulse measurements; Thermal stresses;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2005.1511099

Filename

1511099