By Topic

Impact of new lightning and switching impulse definitions on the test results for insulation systems

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

1 Author(s)
Gockenbach, E. ; Div. of High Voltage Eng., Hannover Univ., Germany

The revision of the relevant recommendations allows to introduce new definitions of lightning impulse parameters. Experimental results have shown that the breakdown voltage of insulating materials depends on the frequency of the oscillations or overshoot near the peak and that this behaviour can be described by a test voltage factor k. Different procedures to evaluate the test voltage and the time parameters of a lightning impulse voltage are described. Filtering methods leads to very good results in determining the test voltage, but at the moment differences exists in the determination of the time parameters of a lightning impulse. The time to peak of a switching impulse can also be determined more accurate by a procedure similar to lightning impulses. The new definitions seems not to influence the results of impulse tests on insulation systems but they contribute very much to the reproducibility of the tests results.

Published in:

Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on  (Volume:3 )

Date of Conference:

5-9 June 2005