http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
삼상유도전동기 권선저항 측정이 효율 산출에 미치는 영향에 관한 연구
강병국(Byung-Guk Kang),김광민(Kwang-Min Kim),이주(Ju Lee) 한국조명·전기설비학회 2016 조명·전기설비학회논문지 Vol.30 No.3
3phase induction motor consumes 40% of national electric power. so It is one of the most important electric device for the national power policy. The efficiency measurement is carried out by IEC standards. After the temperature rise test, It’s difficult to measure the winding resistance immediately. because of inertia and power cut-off time. Therefore, IEC standards suggest the measurement time. But during the measurement time, the winding temperature cools down. It causes the value of winding resistance is variable. Several conditions which possibly occurred by the measurement time of IEC 60034-1 are suggested. and The efficiency evaluation of 3phase induction motors is carried out by IEC 60034-2-1 with the several conditions. As the results, we find out the winding resistance rapidly goes down within 15 sec. so It proves that the winding resistance should be measured within 15 sec. for the efficiency evaluating of 3phase induction motor.
배터리 교환형 전기자동차의 배터리 접속기 내구성 평가에 관한 연구
김광민(Kwang-Min Kim),윤준보(Jun-Bo Yun),강병국(Byung-Guk Kang),이주(Ju Lee) 한국조명·전기설비학회 2014 조명·전기설비학회논문지 Vol.28 No.8
Recently, many countries are researching and developing the various Electric Vehicle(EV) for reserving their natural environments and so on. But the charging time that is longer than the time of filling up the traditional engine vehicle will be the obstacles of spreading them. So, the other type EV is developed. It is the Battery Changeable EV. But there is not testing method for it. Especially, the defining of the durability evaluation for the couplers between battery and charger is very important because the couplers are changed very frequently. So, they may cause many faults and problems. Therefore, this study shows the definition of the durability procedure and the test is conducted with the equipment.