지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Large Power transformer is a complex and critical component of power plant and consists of cellulosic paper, insulation oil, core, coil etc. Insulation materials of transformer and related equipment break down to liberate dissolved gas due to corona, partial discharge, pyrolysis or thermal decomposition. The dissolved gas kinds can be related to the type of electrical faults, and the rate of gas generation can indicate the severity of the fault. The identities of gases being generated are using very useful to decide the condition of transformation status. Therefore dissolved gas analysis is one of the best condition monitoring methods for power transformer. Also, on-line multi-gas analyzer has been developed and installed to monitor the condition of critical transformers. Rogers method, IEC method, key gas method and Duval Triangle method are used to failure diagnosis typically, and those methods are using the ratio or kinds of dissolved gas to evaluate the condition of transformer.
This paper analyzes the reliability of transformer diagnostic methods considering actual dissolved gas concentration. Fault diagnosis is performed based on the dissolved gas of five transformers which experienced various fault respectively in the field, and the diagnosis result is compared with the actual off-line fault analysis. In this comparison result, Diagnostic methods using dissolved gas ratio like Rogers method, IEC method are sometimes fall outside the ratio code and no diagnosis but Duval triangle method and Key gas method is correct comparatively.
This paper analyzes the reliability of transformer diagnostic methods considering actual dissolved gas concentration. Fault diagnosis is performed based on the dissolved gas of five transformers which experienced various fault respectively in the field, and the diagnosis result is compared with the actual off-line fault analysis. In this comparison result, Diagnostic methods using dissolved gas ratio like Rogers method, IEC method are sometimes fall outside the ratio code and no diagnosis but Duval triangle method and Key gas method is correct comparatively.
목차
Abstract
1. 서론
2. 본론
3. 결론
참고문헌
저자소개
참고문헌 (8)
참고문헌 신청
1. [학술대회논문] - Imadullah Khan / 2008 / Fault Gas Generation in Ester based Transformer Fluids and Dissolved Gas Analysis / 2008 International Conference on Condition Monitoring and Diagnosis
2. [기타자료] - / 2009 / EPRI TR-1017734 Transformer Guidebook Develop--ment(The Copper Book)
3. [기타자료] - / 2009 / EPRI TR-1002913 Power Transformer Maintenance and Application Guide
4. [단행본] - Martin J.Heathcote / 1998 / The J&P Transformer Book(Twelfth edition ) / Elsevier : 588 ~ 590
5. [학술대회논문] - S.R. LINDGREN / 2004 / Transformer Condition Assessment Experiences using Automated on-line Dissolved Gas analysis / CIGRE
2. [기타자료] - / 2009 / EPRI TR-1017734 Transformer Guidebook Develop--ment(The Copper Book)
3. [기타자료] - / 2009 / EPRI TR-1002913 Power Transformer Maintenance and Application Guide
4. [단행본] - Martin J.Heathcote / 1998 / The J&P Transformer Book(Twelfth edition ) / Elsevier : 588 ~ 590
5. [학술대회논문] - S.R. LINDGREN / 2004 / Transformer Condition Assessment Experiences using Automated on-line Dissolved Gas analysis / CIGRE
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UCI(KEPA) : I410-ECN-0101-2013-560-000378192