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100㎷ 이하의 낮은 전류 범위에 대한 변류기 오차 측정 장비의 평가 기술 개발
김윤형(Yoon Hyoung Kim),송의섭(Eui Sub Song),파이살(Agah Faisal),정재갑(Jae Kap Jung),한상옥(Sang Ok Han) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.10
The evaluation technique for ratio error and phase displacement of current transformer (CT) comparator by using the precise standard capacitors and resistors is applied to ranges below 100 ㎃. By applying this technique for CT comparator which has 10 ㎃ and 100 ㎃ current ranges, we can evaluate the low range of current. The method is applied to CT comparator under test with the ratio error and phase displacement ranges respectively 0 ~ ± 10 % and 0 ~ ± 200 min. Finally we have compared the ratio error and phase displacement of the CT comparator under test theoretically obtained in this method with the specification