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Quality assessment of high voltage varistors by third harmonic index

Abstrakt

High voltage varistors that consist of grained ZnO have to be tested before assembling into a surge arrester. The existing methods demand a usage of high voltages and intensive currents that is inconvenient, destructive and needs extensive power consumption. Additionally, these methods require metallization of the prepared varistor structures that increases costs. We propose another method of varistors quality assessments by a third harmonic index measurement at relatively low voltage range. In this experimental study it has been proved that the proposed procedure can be applied successfully for preliminary selection of the tested structures.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie z listy filadelfijskiej
Opublikowano w:
Metrology and Measurement Systems nr 15, strony 23 - 31,
ISSN: 0860-8229
Język:
angielski
Rok wydania:
2008
Opis bibliograficzny:
Hasse L., Smulko J.: Quality assessment of high voltage varistors by third harmonic index// Metrology and Measurement Systems. -Vol. 15., nr. nr 1 (2008), s.23-31
Weryfikacja:
Politechnika Gdańska

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