http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조호령(Ho Rung Cho),이상식(Sang Sik Lee),박재원(Jae Won Park),이영흠(Young Heum Lee),유향복(Hyang Bok Ryoo) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.5
절연구분장치는 전차선로의 전기적인 구분을 위하여 설치하며, 이상용의 경우 교류/교류 구간에서 변전소 앞이나 변전소간에 이상의 전기를 구분하기 위하여 전차선로에 적용하고 있으며 현재는 전량 수입에 의존하고 있다. 최근 전기철도 건설기조가 일반철도도 200km/h 이상 고속화로 추진되고 있으며 철도운영자의 차량개발도 고속화 됨에 따라 최고운행속도 230km/h 에 적합한 이상용 절연구분장치의 개발을 필요로 하고 있다. 이에 민관공동기술개발 과제로 고속운행에 적합한 이상용 절연구분장치를 국산화하기 위하여 개발을 진행하고 있는 상황으로 제작사양(안)을 도출하고 시제품 개발, 성능검증을 위한 현장적용시험을 진행하고 있으며, 현장적용시험은 저속-중속-고속에 대한 3 단계 시험을 통하여 신뢰성과 안전성이 확보되는 고속형 절연구분장치의 개발을 완료할 예정이다. The section insulator is installed to sectionalize a catenary. A section insulator for different phase is used in railway so that electricity of different phase before substation or between substations can be sectionalized at AC/AC section. Section insulators for different phase are all imported goods. Recent construction trend of electrical railway is the improvement of normal railway for high speed of 200km/h or greater and high speed train development of railway operator. The development of section insulator for different phase suitable for maximum operation speed of 230 km/h is needed. So we are developing a section insulator for different phase for high speed operation as the private and public joint technology development project for localization. We are doing a field test for making specifications, producing specimen and performance verification. The field test consists of 3 step tests for low speed-medium speed – high speed. We will complete the development of reliable and safe section insulator for high speed through the field test.
김주락(Joorak Kim),장동욱(Dong-Uk Jang),창상훈(Sang-Hoon Chang),이영흠(Young-Heum Lee) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
Load capacity varies according to a day of the week in traction power supply system, because time schedule in railway is changed as demand for passengers and freights. Therefore, Voltage drop also varies as load capacity. In Korea railway, Voltage collected from catenary in train is decreased, as load supplied traction power supply system is increased. Therefore, investigation about voltage drop should be performed, before development of countermeasure against voltage drop. The investigation can be performed by simulation or field test. Naturally, field test is more precise than simulation. In addition, field test should be carried out at peak load. This paper presents test and analysis about voltage drop in railway. The test is performed in both a day of the week and weekend. The analysis is figured out comparison load capacity between two days and voltage drop across terminal.