http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오광해(Oh Kwanghae),이한민(Lee Hanmin),이장무(Lee Changmu),이기원(Lee Kiwon) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
Tins paper presents a method to obtain line constants for a catenary system. To find them, voltages, currents and power factors according to frequencies were measured in short circuit and open circuit respectively. And from the measured data, resistances, inductances and capacitances were also calculated.
오광해(Oh Kwanghae),이한민(Lee Hanmin),장동욱(Jang Dongwook),김주락(Kim Joorak) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
This study presents an approach to model and to analyse traction power feeding system focused on the amplification of harmonic current. Through the research we can conclude the following: - The resonance frequency is not depend on the location of vehicle. The magnification of harmonic is, however, a function of the position of a train. - The resonance frequency is lower as catenary length is longer.