Condition assessment of OLTC using duval triangle and static winding resistance test
On Load Tap Changer (OLTC) failure occurs is due to the insulation degradation and contacts failure inside it. Other than that, contacts wear influences the OLTC performances. The worn contacts will cause hotspots in the OLTC tank and cause the insulating oil to degrade faster. As a result, this wil...
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2023
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| author | Khiar M.S.A. Thayoob Y.H.Md. Ghazali Y.Z.Y. Ghani S.A. Chairul I.S. |
| author2 | 55336341600 |
| author_facet | 55336341600 Khiar M.S.A. Thayoob Y.H.Md. Ghazali Y.Z.Y. Ghani S.A. Chairul I.S. |
| author_sort | Khiar M.S.A. |
| building | UNITEN Library |
| collection | Institutional Repository |
| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | On Load Tap Changer (OLTC) failure occurs is due to the insulation degradation and contacts failure inside it. Other than that, contacts wear influences the OLTC performances. The worn contacts will cause hotspots in the OLTC tank and cause the insulating oil to degrade faster. As a result, this will lead to the damage of complete transformer unit. Thus, the research work that has been carried out applied the Dissolved Gas Analysis (DGA) via latest Duval Triangle method during the diagnosis of OLTC at the first stage to provide early indication of OLTC's breakdown. The Static Winding Resistance Test is then applied at the second stage to figure out any increase of contact resistances for all phases. The capability of Static Winding Resistance Test in order to provide any sign of bad contacts in fixed condition can be done by comparing two different conditions which are before and after maintenance. � 2012 IEEE. |
| format | Conference Paper |
| id | my.uniten.dspace-30307 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2023 |
| record_format | dspace |
| spelling | my.uniten.dspace-303072024-04-18T11:05:33Z Condition assessment of OLTC using duval triangle and static winding resistance test Khiar M.S.A. Thayoob Y.H.Md. Ghazali Y.Z.Y. Ghani S.A. Chairul I.S. 55336341600 6505876050 55336569600 56504019900 55336864500 Contact resistance Dissolved Gas Analysis (DGA) Duval Triangle Method OLTC Static Winding Resistance Test Contact resistance Degradation Optimization Bad contact Condition assessments Dissolved gas analysis Duval Triangle Method Hotspots Insulation degradation OLTC On-load tap changers Winding resistances Engineering research On Load Tap Changer (OLTC) failure occurs is due to the insulation degradation and contacts failure inside it. Other than that, contacts wear influences the OLTC performances. The worn contacts will cause hotspots in the OLTC tank and cause the insulating oil to degrade faster. As a result, this will lead to the damage of complete transformer unit. Thus, the research work that has been carried out applied the Dissolved Gas Analysis (DGA) via latest Duval Triangle method during the diagnosis of OLTC at the first stage to provide early indication of OLTC's breakdown. The Static Winding Resistance Test is then applied at the second stage to figure out any increase of contact resistances for all phases. The capability of Static Winding Resistance Test in order to provide any sign of bad contacts in fixed condition can be done by comparing two different conditions which are before and after maintenance. � 2012 IEEE. Final 2023-12-29T07:46:32Z 2023-12-29T07:46:32Z 2012 Conference Paper 10.1109/PEOCO.2012.6230903 2-s2.0-84865018391 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84865018391&doi=10.1109%2fPEOCO.2012.6230903&partnerID=40&md5=2e2311490cf74275aee30a71f470da5a https://irepository.uniten.edu.my/handle/123456789/30307 6230903 432 435 Scopus |
| spellingShingle | Contact resistance Dissolved Gas Analysis (DGA) Duval Triangle Method OLTC Static Winding Resistance Test Contact resistance Degradation Optimization Bad contact Condition assessments Dissolved gas analysis Duval Triangle Method Hotspots Insulation degradation OLTC On-load tap changers Winding resistances Engineering research Khiar M.S.A. Thayoob Y.H.Md. Ghazali Y.Z.Y. Ghani S.A. Chairul I.S. Condition assessment of OLTC using duval triangle and static winding resistance test |
| title | Condition assessment of OLTC using duval triangle and static winding resistance test |
| title_full | Condition assessment of OLTC using duval triangle and static winding resistance test |
| title_fullStr | Condition assessment of OLTC using duval triangle and static winding resistance test |
| title_full_unstemmed | Condition assessment of OLTC using duval triangle and static winding resistance test |
| title_short | Condition assessment of OLTC using duval triangle and static winding resistance test |
| title_sort | condition assessment of oltc using duval triangle and static winding resistance test |
| topic | Contact resistance Dissolved Gas Analysis (DGA) Duval Triangle Method OLTC Static Winding Resistance Test Contact resistance Degradation Optimization Bad contact Condition assessments Dissolved gas analysis Duval Triangle Method Hotspots Insulation degradation OLTC On-load tap changers Winding resistances Engineering research |
| url_provider | http://dspace.uniten.edu.my/ |