Format: HTML | BibTeX | DC | EndNote | NLM | MARC | MARCXML
Published Article / ENY-ARTICLE-2008-181

Influence of Partial Discharges on ZnO Varistors

Jaroszewski, M (Wrocław University of Technology)


Abstract: The 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.

Keyword(s): varistor ; ZnO ; partial discharges
Note: 2004 International Conference on Solid Dielectrics, Toulouse, France, July 5-9, 2004

Fulltext :

Cited by: try citation search for ENY-ARTICLE-2008-181

Rekord stworzony 2008-09-30, ostatnia modyfikacja 2008-09-30

Podobne rekordy

Osoby, które oglądały tę stronę, oglądały również:
(805)  Proceedings of the Int. Conference "7th EEEIC International Workshop on Environment and Electrical Engineering" - Schwarz, H et al - ENY-PREPRINT-2008-008
(805)  Adaptacyjne sieci neuronowe w zastosowaniu do identyfikacji stanu układów elektrycznych - Kostyla, P - ENY-THESIS-2008-005
(793)  Impact of Distributed Generation on Electrical Power Network - Khan, U N - ENY-ARTICLE-2008-142
(777)  Zadania 1 Podstawy Elektrotechniki Automatyka i Robotyka - Hejke, I et al - ENY-TEACHING-2008-020
(774)  Evaluation of compensation devices of DC arc furnaces using advanced spectrum estimation methods - Bracale, A et al - ENY-ARTICLE-2008-011

Oceń ten dokument:
Bądź pierwszy i oceń ten dokument.

Dyskusja nad tym dokumentem:
Rozpocznij dyskusję o tym dokumencie.