송전급(22.9kV초과) 전력기기 SF6 대체기술개발 Development of SF6 replacement technology for transmission power instrument(over 22.9㎸ class원문보기
보고서 정보
주관연구기관
LS산전
보고서유형
최종보고서
발행국가
대한민국
언어
한국어
발행년월
2009-10
과제시작연도
2008
주관부처
지식경제부 Ministry of Knowledge Economy
등록번호
TRKO201400028905
과제고유번호
1415090549
사업명
에너지및자원순환기술개발보급
DB 구축일자
2014-11-22
키워드
온실가스.육불화황가스.대체절연.초고압진공인터럽터.압축건조공기.Green house gas.SF6 Gas.Alternative insulation.High Voltage VI.Dry-Air.
초록▼
1. SF6 대체 절연 기술 개발 가. Dry air의 압력별 절연 특성 확보 및 절연 설계 기준 확립 나. 고체절연에 의한 Dry air의 절연 보완 기술 확보 2. 초고압 VI 적용 차단 Unit 개발 - 145kV 40kA 2000A 및 170kV 31.5kA 2000A single break VI 개발 - Dry air를 적용한 VI 적용 차단 Unit 설계 및 샘플 제작 - 참고 시험에 의한 차단 Unit 성능 확인 - 시험 항목 : 차단시험, 절연시험, 온도시험, 단시간 시험 3
1. SF6 대체 절연 기술 개발 가. Dry air의 압력별 절연 특성 확보 및 절연 설계 기준 확립 나. 고체절연에 의한 Dry air의 절연 보완 기술 확보 2. 초고압 VI 적용 차단 Unit 개발 - 145kV 40kA 2000A 및 170kV 31.5kA 2000A single break VI 개발 - Dry air를 적용한 VI 적용 차단 Unit 설계 및 샘플 제작 - 참고 시험에 의한 차단 Unit 성능 확인 - 시험 항목 : 차단시험, 절연시험, 온도시험, 단시간 시험 3. Dry air 절연 모선 Unit 개발 - 170kV 31.5kA 2000A Dry air 절연 모선 Unit 설계 및 샘플 제작 - Dry air 및 고체절연에 의한 절연 성능 증대 기술 확보 - 참고 시험에 의한 모선 Unit 성능 확인 - 시험 항목 : 절연시험, 온도 상승 시험, 단시간 시험 .4 Dry air 절연 DS/ES Unit 개발 - 170kV 31.5kA 2000A 단상 DS/ES Unit 설계 및 샘플 제작 - 고체 절연을 이용한 Dry air 절연 기술 확보 - 참고 시험에 의한 성능 확인 : 단시간 시험, 절연시험, 모선 Loop 시험 5. 초고압용 고체 절연물 및 몰드 기술 개발 - 초고압용 에폭시 수지 성형 및 부품 제작기술 개발 - 초고압용 절연 Rod 및 스페이서 개발 6. CDM 사업 기획 보고서 작성 - 대체 절연 기술의 CDM 사업 타당성 검토
Abstract▼
The SF6 gas has excellent dielectric strength and interruption performance in high voltage switchgear equipment. For these reasons, it has been widely accepted for use in Gas Insulated Switchgear(GIS), the Gas Circuit Breaker(GCB) and Gas Transformer. However, the use of SF6
The SF6 gas has excellent dielectric strength and interruption performance in high voltage switchgear equipment. For these reasons, it has been widely accepted for use in Gas Insulated Switchgear(GIS), the Gas Circuit Breaker(GCB) and Gas Transformer. However, the use of SF6 gas became regulated under the Tokyo protocol agreements established in 1997 due to its high Global Warming Potential(GWP). The GWP of SF6 gas is 23,900 times higher than that of CO2 gas. From this background, recently the development of environmental friendly switchgear using epoxy, dry air, N2, CO2 and SF6 mixed gas was performed by many global top manufacturers. Regarding their interrupter type, most of environmental friendly switchgears are using Vacuum Interrupter(VI) for its circuit breaker unit. For this reason, VI is being focused as one of the alternatives in GCB for high voltage switchgears, VIs capable of handling voltages up to 145kV 40kA have been developed and 252kV 50kA single break VI is currently under development in the world. In this research, to substitute the SF6 gas, dry air insulation technology was developed. The aims of this research were to develope of circuit breaker(CB) unit, disconnecting switching and earth switching(DS/ES) unit, and 3-phase bus unit for transmission apparatus. The rating was 170kV 31.5kA 2000A for CB unit, DS/ES unit, and 3-phase bus unit, and 145kV 40kA 2000A for CB unit. As the main components of CB units, single break vacuum interrupter(VI) were developed for each rated voltage. To evaluate the performance of the developed units, some tests such as electrical insulation test, current interruption test, temperature rising test, and short-circuit current withstand test were carried out according to IEC 62271-100. The solid insulators for use in the dry air and the new type of operating mechanism for CB unit were also developed during the research period. As the basis research, the numerical calculation of the vacuum arc behavior during the current interruption of vacuum interrupter was carried out using the multi-physics simulation method. And the dielectric characteristics of the sold material in the dry air were studied. Finally, the possibility of the registration as a Clean Development Mechanism(CDM) project using this research results was investigated.
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