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000000231 001__ 231
000000231 037__ $$aENY-ARTICLE-2008-181
000000231 041__ $$aeng
000000231 100__ $$aJaroszewski, M$$uWrocław University of Technology
000000231 245__ $$aInfluence of Partial Discharges on ZnO Varistors
000000231 260__ $$c2008-09-30
000000231 500__ $$a2004 International Conference on Solid Dielectrics, Toulouse, France, July 5-9, 2004
000000231 520__ $$aThe varistors used in HV overvoltage limiters are constantly exposed to operating voltage and environmental hazards and also to transient hazards associated with, among others, overvoltages or pollution. Pollution exposures and the associated partial discharges (PD) are a major problem in the operation of overvoltage limiters. The discharges degrade the electrical properties of varistors which results in an increase in the conduction current active component below the varistor continuous operation voltage. This may lead to loss of thermal stability. To determine the effect of partial discharges on the varistor elements in HV overvoltage limiters, the service exposures were simulated on single varistors in laboratory conditions.
000000231 6531_ $$avaristor
000000231 6531_ $$aZnO
000000231 6531_ $$apartial discharges
000000231 8560_ $$fmaciej.jaroszewski@pwr.wroc.pl
000000231 8564_ $$uhttp://zet10.ipee.pwr.wroc.pl/record/231/files/$$zAccess to Fulltext
000000231 909CO $$ooai:zet10.pwr.wroc.pl:231$$pglobal
000000231 980__ $$aARTICLE