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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Insulation Resistance Measurement Methods
verfasst von : Piotr Olszowiec
Erschienen in: Insulation Measurement and Supervision in Live AC and DC Unearthed Systems
Verlag: Springer Berlin Heidelberg
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A traditional method of insulation resistance measurement in live DC networks is a so called “three voltmeters” method. Similar procedure with use of an ammeter is described. Formulas for insulation equivalent resistance calculation are derived with help of Thevenin’s theorem. Few other methods as well as other unconventional ideas are presented. Evaluation of possible errors of respective measurement methods is given. This assessment may be useful for selection of adequate measurement procedures in practical applications.