Effect of current heating on accurate measurements of AC shunt resistors

Author

Kon, Seitaro ; Yamada, Tatsuji

Author_Institution

Nat. Metrol. Inst. of Japan, Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan

fYear

2015

fDate

14-17 April 2015

Firstpage

144

Lastpage

148

Abstract

To propose a structure for high-accuracy shunt resistors, the frequency and current dependencies of AC shunt resistors with different current ratings are evaluated both for AC resistance and phase angle. To evaluate these characteristics, a modified current-bridge method was developed. The AC resistances of the shunts do not vary considerably with the frequency, up to 3 kHz. The phase angle of AC shunts varies proportionally to the frequency. The current dependence of the AC resistance of shunts seems to change with current value. The current dependence of the phase angle of the shunt remain stable up to 10 A.

Keywords

electric current measurement; resistors; AC resistance; AC shunt resistors; current dependencies; current heating; current ratings; current-bridge method; frequency dependencies; high-accuracy shunt resistors; phase angle; Current measurement; Electrical resistance measurement; Frequency measurement; Resistance; Resistors; Standards; Uncertainty; current dependence; frequency characteristic; measurement; phase angle; shunt resistor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics Packaging and iMAPS All Asia Conference (ICEP-IACC), 2015 International Conference on

Conference_Location

Kyoto

Print_ISBN

978-4-9040-9012-1

Type

conf

DOI

10.1109/ICEP-IAAC.2015.7111016

Filename

7111016