By Topic

Experience with the partial discharge testing of operating motors and generators

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
$33 $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)
G. C. Stone ; Iris Power Eng. Inc., Mississauga, Ont., Canada ; H. Sedding

Surveys have shown that about 40% of serious motor and generator problems are due to the deterioration of stator winding insulation. Over the past several years, practical methods have been developed for measuring the partial discharge activity in the high voltage insulation of stator windings, since partial discharges are a symptom of most insulation failure mechanisms. An online partial discharge test, called the TGA test, has now been specifically developed for turbine generators and large motors. The TGA test allows fossil and nuclear power plant staff to reliably perform a partial discharge test on motors and turbine generators. This paper presents several case studies of the use of this new partial discharge test technology on generators. Test results show that machines with deteriorated windings have a partial discharge activity at least 30 times higher than good windings. The availability of these test methods enables utilities to economically and reliably plan stator winding maintenance and avoid unexpected failures

Published in:

Properties and Applications of Dielectric Materials, 1994., Proceedings of the 4th International Conference on  (Volume:2 )

Date of Conference:

3-8 Jul 1994