대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2002년도 하계학술대회 논문집 C
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- Pages.1862-1864
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- 2002
대전류 측정용 마이크로-옴 분류기의 교정에 관한 연구
Calibration of micro-ohm shunt used for large current measurement
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Kim, M.K.
(Korea Electrotechnology Research Institute)
;
- Kim, I.K. (Korea Electrotechnology Research Institute) ;
- Jeong, J.Y. (Korea Electrotechnology Research Institute) ;
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Kim, I.S.
(Korea Electrotechnology Research Institute)
- 발행 : 2002.07.10
초록
In this study, micro-ohm shunts with rated ac current of 2, 20, 80kA intended for use as an approved system for ac current measurement were calibrated according to IEC 60060. The scale factor and linearity were determined by comparison with the reference measuring system. Measurements of temperature rise due to the rated current was also investigated to analyze a temperature effect. One of the main goals was the determination of the measurement uncertainty of the shunt. The expanded uncertainty of the scale factor for the complete measuring system was satisfied with the STL(Short-circuit Testing Liaison) guide recognized tentatively.
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