NDLI: Frequency Distribution of Leakage Current on Silicone Rubber Insulator in Salt-Fog Environments

Content Provider	IEEE Xplore Digital Library
Author	Du, B.X. Yong Liu
Copyright Year	1986
Abstract	This paper presents an analysis result of using the frequency distribution of leakage current to monitor insulator performance in salt-fog environments. Experiments have been carried out on silicone rubber insulator by injecting salt fog into an artificial fog chamber with an ultrasonic vibration salt-fog generator and applying an AC voltage of 30 kVrms at 50 Hz as the test voltage. Based on the frequency distribution extracted by a wavelet transform technique, the measured leakage current is separated into the low-, intermediate-, and high-frequency components. Cumulative charge at each frequency component is obtained by a time-integral method and found to correlate the frequency components and the insulator performance. Obtained results show that high-frequency components are more effective than low-frequency components on monitoring insulator performance in salt-fog environments.
Sponsorship	IEEE Power Engineering Society
Starting Page	1458
Ending Page	1464
Page Count	7
File Size	733932
File Format	PDF
ISSN	08858977
Volume Number	24
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency Leakage current Rubber Insulation Monitoring Voltage Performance analysis AC generators Insulator testing Wavelet transforms wavelet transform Cumulative charge frequency distribution leakage current salt-fog environments silicone rubber insulator
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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