Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressor
© 1994-2012 IEEE. This paper investigates the feasibility of a cost effective method to prevent internal resonance in power transformers connected to gas insulated substation (GIS) due to very fast transient overvoltage (VFTO) within the GIS. Power transformer internal resonance takes place if one o...
| Main Authors: | , |
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| Format: | Journal Article |
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Institute of Electrical and Electronics Engineers
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/56165 |
| _version_ | 1848759802709147648 |
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| author | Babaei, M. Abu-Siada, Ahmed |
| author_facet | Babaei, M. Abu-Siada, Ahmed |
| author_sort | Babaei, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 1994-2012 IEEE. This paper investigates the feasibility of a cost effective method to prevent internal resonance in power transformers connected to gas insulated substation (GIS) due to very fast transient overvoltage (VFTO) within the GIS. Power transformer internal resonance takes place if one of the VFTO frequencies matches with the transformer natural frequency. If the system is not equipped with adequate damping scheme for such transients, transformer catastrophic failure may take place causing harmful impacts on the environment including fire and oil spillage. In this paper, the feasibility of utilizing RC surge suppressor to avoid power transformer internal resonance is investigated through the simulation of a real 400kV gas insulated substation located in the north of Iran and connected to a 250MVA, three phase power transformer. Several RC design topologies are analysed and the most effective topology to suppress high risk frequencies of VFTO is highlighted. In contrary to the existing resonance suppressing approaches that call for modifications in the GIS infrastructure, the proposed method in this paper is a cost effective technique that can be implemented within existing gas insulated substations without any change in its structure. |
| first_indexed | 2025-11-14T10:05:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-56165 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:05:40Z |
| publishDate | 2017 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-561652017-09-13T16:09:54Z Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressor Babaei, M. Abu-Siada, Ahmed © 1994-2012 IEEE. This paper investigates the feasibility of a cost effective method to prevent internal resonance in power transformers connected to gas insulated substation (GIS) due to very fast transient overvoltage (VFTO) within the GIS. Power transformer internal resonance takes place if one of the VFTO frequencies matches with the transformer natural frequency. If the system is not equipped with adequate damping scheme for such transients, transformer catastrophic failure may take place causing harmful impacts on the environment including fire and oil spillage. In this paper, the feasibility of utilizing RC surge suppressor to avoid power transformer internal resonance is investigated through the simulation of a real 400kV gas insulated substation located in the north of Iran and connected to a 250MVA, three phase power transformer. Several RC design topologies are analysed and the most effective topology to suppress high risk frequencies of VFTO is highlighted. In contrary to the existing resonance suppressing approaches that call for modifications in the GIS infrastructure, the proposed method in this paper is a cost effective technique that can be implemented within existing gas insulated substations without any change in its structure. 2017 Journal Article http://hdl.handle.net/20.500.11937/56165 10.1109/TDEI.2017.006422 Institute of Electrical and Electronics Engineers restricted |
| spellingShingle | Babaei, M. Abu-Siada, Ahmed Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressor |
| title | Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressor |
| title_full | Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressor |
| title_fullStr | Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressor |
| title_full_unstemmed | Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressor |
| title_short | Preventing transformer internal resonance under very fast transient overvoltage using RC surge suppressor |
| title_sort | preventing transformer internal resonance under very fast transient overvoltage using rc surge suppressor |
| url | http://hdl.handle.net/20.500.11937/56165 |