Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion
In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the arc root voltage gradient in the arc propagation process. Based on this crite...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-03-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/5/3/752/ |
| _version_ | 1817989905399152640 |
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| author | Markus Zahn Xing Lan Chilong Jiang Wenxia Sima Rui Wang Qing Yang |
| author_facet | Markus Zahn Xing Lan Chilong Jiang Wenxia Sima Rui Wang Qing Yang |
| author_sort | Markus Zahn |
| collection | DOAJ |
| description | In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the arc root voltage gradient in the arc propagation process. Based on this criterion, a new distributed parameter electrical circuit flashover model of polluted insulators is presented. The arc channel is considered as an equivalent distributed parameter circuit model instead of using the arc voltage-gradient equation. The parameters of the arc model are obtained from the electromagnetic field distribution of the arc and the gas discharge theories. The arc root is considered as parallel paths including the polluted layer. The variation of the voltage on the arc root is related to the capability of arc propagation. This model takes the microscopic mechanism of arc root ionization into consideration, which can improve the accuracy of the flashover model. The results obtained from the presented model are in good agreement with other mathematical and experimental results. |
| first_indexed | 2024-04-14T00:52:37Z |
| format | Article |
| id | doaj.art-7e5eaf7e78b94a669f3f9c2eb8ebff72 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T00:52:37Z |
| publishDate | 2012-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7e5eaf7e78b94a669f3f9c2eb8ebff722022-12-22T02:21:44ZengMDPI AGEnergies1996-10732012-03-015375276910.3390/en5030752Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient CriterionMarkus ZahnXing LanChilong JiangWenxia SimaRui WangQing YangIn order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the arc root voltage gradient in the arc propagation process. Based on this criterion, a new distributed parameter electrical circuit flashover model of polluted insulators is presented. The arc channel is considered as an equivalent distributed parameter circuit model instead of using the arc voltage-gradient equation. The parameters of the arc model are obtained from the electromagnetic field distribution of the arc and the gas discharge theories. The arc root is considered as parallel paths including the polluted layer. The variation of the voltage on the arc root is related to the capability of arc propagation. This model takes the microscopic mechanism of arc root ionization into consideration, which can improve the accuracy of the flashover model. The results obtained from the presented model are in good agreement with other mathematical and experimental results.http://www.mdpi.com/1996-1073/5/3/752/arc root voltage gradientflashover mechanismcircuit model of insulatorAC arc |
| spellingShingle | Markus Zahn Xing Lan Chilong Jiang Wenxia Sima Rui Wang Qing Yang Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion Energies arc root voltage gradient flashover mechanism circuit model of insulator AC arc |
| title | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_full | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_fullStr | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_full_unstemmed | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_short | Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion |
| title_sort | electrical circuit flashover model of polluted insulators under ac voltage based on the arc root voltage gradient criterion |
| topic | arc root voltage gradient flashover mechanism circuit model of insulator AC arc |
| url | http://www.mdpi.com/1996-1073/5/3/752/ |
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