Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1995.07b
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- Pages.676-678
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- 1995
Reference DC/AC Power comparator on the basis of precision thermal converters
정밀 열전형변환기를 사용한 기준직교류전력비교기
- Park, Young-Tae (KRISS) ;
- Jang, Seok-Myeong (ChungNam Univ.)
- Published : 1995.07.20
Abstract
The Paper describes a dc/nc power comparator for measurement of power. Based on a thermal principle, the instrument performs ac-dc transfer and absolute power and energy measurements in the range of currents from 0 to 5 A, voltages from 60 to 240 V, power factors from 0 to 1 and frequencies from 50 to 1000 Hz. The ac-dc transfer accuracy is better than 20 ppm at unity power factor and better than 50 ppm at 0.5 power factor.
Keywords