PTB - UNIIM bilateral comparison on current transformer measurement systems at currents up to 60 000A

Author

Mohns, E. ; Sychev, Y. ; Roeissle, G.

Author_Institution

Phys.-Tech. Bundesanstalt (PTB), Braunschweig, Germany

fYear

2012

fDate

1-6 July 2012

Firstpage

18

Lastpage

19

Abstract

This paper presents the results of a bilateral comparison of current transformer measurement systems at 50 Hz between PTB (pilot laboratory) and UNIIM. The comparison is registered at COOMET with the identifier 513/DE-a/10. The comparison of the systems using two two-stage current transformers from UNIIM and the data processing have been finished. The results agree within 6 μA / A for the current ratio errors and 8 μrad for the phase displacements at all current ratios from 1 A / 1 A to 50 kA / 5 A and at all test points from 1 % to 120 %. The associated EN factors are below 0.6.

Keywords

current transformers; instrument transformers; measurement systems; phase measurement; COOMET; PTB; UNIIM; current ratio error; current transformer; data processing; frequency 50 Hz; measurement system; phase displacement; Current measurement; Current transformers; Frequency measurement; Measurement uncertainty; Standards; Uncertainty; Windings; current transformers (CT); instrument transformers; phase displacement; ratio error;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6250637

Filename

6250637