By Topic

A study on partial discharge signals and noises at on-line generator stator windings

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)
Hee-Sang Shin ; Dept. of Electr. Eng., Soong-sil Univ., Seoul, South Korea ; Jae-Chul Kim

Recently, the importance of supplying the reliable electric power is increasing. Insulation deterioration of stator winding is a major cause of faults in high voltage generators. Online partial discharge detection is useful technique to diagnose high voltage generators. Capacitive couplers have been the most widely used for on-line partial discharge detection in high voltage generators. However, interpretation of its result in time domain is very complex because of the mixed results with PD(Partial Discharges) and noises. In this paper, the partial discharge signals and noises were detected using 13[kV] class capacitive couplers at generator stator windings of hydro generators. Characteristics of the partial discharge signals and noises were analyzed. In addition, this paper presents system noise signals caused by sparks from slip rings, power tool operations, transformers and switchgears.

Published in:

Transmission & Distribution Conference & Exposition: Asia and Pacific, 2009

Date of Conference:

26-30 Oct. 2009