INTERLABORATORY COMPARISON OF INSTRUMENT CURRENT TRANSFORMER STANDARDS IN THE RANGE UP TO 800 A AT 50 HZ

Karel Draxler, Renata Styblíková

Abstract

The article describes results of an interlaboratory comparison of instrument current transformers performed in the Czech Republic. An operating instrument current transformer with ratios 400 A/5 A and 800 A/5 A has been used by this comparison. A common instrument transformer has a big dependence of errors on burden and its phase displacement. This dependence is also illustrated. The various results are compared and determined their differences for single laboratories.

Keywords

comparison measurement, instrument current transformer, ratio error, phase displacement

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IMEKO-TC4-2001-057.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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