Thermography of aged contacts of high voltage equipment |
| |
Authors: | M Muhr S Pack S Jaufer H Lugschitz |
| |
Affiliation: | Institut für Hochspannungstechnik und Systemmanagement, Technische Universit?t Graz, Graz, Austria Verbund-Austrian Power Grid AG, Wien, Austria
|
| |
Abstract: | New developments in diagnostic tools and systems are necessary for a reliable and economic evaluation of the condition of
equipment in power systems. In a research project a tool for the condition of contacts of centre break disconnector, which
is used under normal operation by the aid of a thermography measurement system, has been developed. In this paper, an overview
about the laboratory investigation of the temperature load behaviour and the environmental influence on-site for new and aged
disconnector contacts are given. A condition evaluation tool for contacts, which was the aim of the project, has been created.
The basic method for the evaluation is presented, and also two additional easements for a fast identification of suspect contacts
are presented. With this evaluation tool and the usage of a thermography based measuring system, a condition based maintenance
strategy can be applied, whereby an early detection of damages is possible and so power quality and reliability increase.
|
| |
Keywords: | High voltage disconnector Contact diagnostic Thermography Aged contact |
本文献已被 SpringerLink 等数据库收录! |
|