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전력용 변압기의 상태를 고려한 온라인 가스분석 진단장치 설치시기에 관한 연구Study on the Installation Time of On-line Dissolved Gas Analysis Equipment Considering Transformer State
- Other Titles
- Study on the Installation Time of On-line Dissolved Gas Analysis Equipment Considering Transformer State
- Issue Date
- Jun-2020
- Publisher
- 한국조명.전기설비학회
- Keywords
- Transformer; DGA; Monitoring system; On-line DGA Equipment; Installation Time
- Citation
- 조명.전기설비학회논문지, v.34, no.6, pp.22 - 27
- Journal Title
- 조명.전기설비학회논문지
- Volume
- 34
- Number
- 6
- Start Page
- 22
- End Page
- 27
- ISSN
- 1229-4691
- Abstract
- The DGA(Dissolved Gas Analysis) can diagnose the transformer state through the characteristic gas generated by the fault. Also, DGA can be used as an essential inspection because it can be measured even in operation. If the result of DGA is bad, the inspection cycle can be shortened and an on-line DGA equipment can be installed and operated for real-time inspection as needed. However, the lifetime of the on-line DGA equipment is shorter than the transformer, resulting in economic losses when installing simultaneously with the transformer. This paper analyzes the transformer lifetime and the lifetime of the on-line DGA equipment. Also, considering the number of alarms and the additional inspection cost according to the result of DGA, the appropriate installation time of the on-line DGA equipment is suggested.
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Related Researcher
- Kim, Jae Chul
- College of Engineering (School of Electrical Engineering)