NDLI: Numerical and experimental investigation of the effects of pollution on glass suspension-type insulators

Content Provider	IEEE Xplore Digital Library
Author	Ilhan, S. Ozdemir, A. Jayaram, S.H. Cherney, E.A.
Copyright Year	1994
Abstract	This study presents both numerical and experimental results regarding the effects of pollution on the flashover performance of glass suspension-type insulators. The finite element method (FEM) was used for simulating polluted insulators both at power frequency and at lightning impulse voltages. Partially conductive epoxy resin with graphite powder was used for modeling pollution on the insulators, which enabled the measurement of the electrical potentials on the polluted insulators. Numerical studies demonstrated the variations in the field distributions caused by the location and severity of the pollution as well as by the type of voltage applied. The simulations, which were verified to a degree through measurement, showed that pollution conductivities greater than 10-6 S/m and 10-3 S/m alter field distributions for power frequency and lightning impulse voltages, respectively. Unlike the results obtained for partially polluted insulators, the voltage distribution was almost linear for fully polluted insulators. Experimental studies revealed that the location of the partial pollution plays an important role in flashover performance for lightning impulse voltages but has a negligible effect for power frequency voltages.
Sponsorship	National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA
Starting Page	2987
Ending Page	2994
Page Count	8
File Size	756794
File Format	PDF
ISSN	10709878
Volume Number	22
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Insulators Pollution Electric potential Conductivity Surface contamination Electric fields Glass potential distribution insulator pollution dry-bands electric field lightning impulse powerfrequency voltage
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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