Cart (Loading....) | Create Account
Close category search window

Thirty-Six Years of Service Experience with a National Population of Gas-Insulated Substations

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Istad, M. ; Dept. of Electr. Power Eng., Norwegian Univ. of Sci. & Technol., Trondheim, Norway ; Runde, M.

This paper shows the result of a failure survey including the entire population of gas-insulated substations in the Norwegian power transmission system. The survey comprises the complete service experience up to now-nearly 12000 circuit-breaker years. Information about 180 failures has been recorded during 36 years: 77 internal flashovers/arcing faults have occurred, four of which burned through the encapsulation and another six caused the pressure-relief devices to operate. No severe injuries have been recorded. The overall failure rates and their causes are comparable to the findings of other reliability surveys, although the occurrence of severe arcing faults appears to be clearly higher than noticed elsewhere. The 300-kV and 420-kV gas-insulated substations put into service around 1980 have a significant and negative influence on the overall failure rate, whereas a large number of 145-kV substations installed since the early 1990s have proven very reliable. Even though a large portion of the population is above or approaching the designed service life of 30 years, no significant aging problems could be revealed with a basis in the failure statistics.

Published in:

Power Delivery, IEEE Transactions on  (Volume:25 ,  Issue: 4 )

Date of Publication:

Oct. 2010

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.