Characteristics of the Partial Discharge in the Development of Conductive Particle-Initiated Flashover of a GIS Insulator
Conductive particles are one of the most important defects which can greatly degrade the performance of gas-insulated metal-enclosed switchgear (GIS). Many efforts have been made to clarify the influence on the withstand voltage, understand the flashover mechanism, and build a comprehensive model to...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/10/2481 |
| _version_ | 1797567979477532672 |
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| author | Junping Zhao Zhengjie An Bin Lv Zhicheng Wu Qiaogen Zhang |
| author_facet | Junping Zhao Zhengjie An Bin Lv Zhicheng Wu Qiaogen Zhang |
| author_sort | Junping Zhao |
| collection | DOAJ |
| description | Conductive particles are one of the most important defects which can greatly degrade the performance of gas-insulated metal-enclosed switchgear (GIS). Many efforts have been made to clarify the influence on the withstand voltage, understand the flashover mechanism, and build a comprehensive model to describe the particle-initiated flashover. In this study, a partial discharge (PD) signal detected through a photomultiplier (PMT) and recorded by a high-speed data acquisition (DAQ) system was used to analyze the discharge development of a conductive particle-contaminated GIS insulator under constant high AC voltage. An additional PMT was used as a reference to eliminate the dark count of the PMT and the data collection method of a DAQ system was optimized to capture the pulse waveform of each PD to obtain detailed physical information. Spectra of the PD pulse amplitude over pulse width, PD counts within various amplitude ranges over time and phase resolved partial discharge (PRPD) patterns of the PDs in different stages are obtained through the captured PD waveforms. Characteristics of the PDs from the application of the high AC voltage up to the flashover of the insulator were then analyzed, and it was found that the features of the PDs in the near-flashover stage were significantly different to the previous stages. |
| first_indexed | 2024-03-10T19:49:53Z |
| format | Article |
| id | doaj.art-ae90c7143f764496bd14c578a2d971eb |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:49:53Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ae90c7143f764496bd14c578a2d971eb2023-11-20T00:30:51ZengMDPI AGEnergies1996-10732020-05-011310248110.3390/en13102481Characteristics of the Partial Discharge in the Development of Conductive Particle-Initiated Flashover of a GIS InsulatorJunping Zhao0Zhengjie An1Bin Lv2Zhicheng Wu3Qiaogen Zhang4State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an 710049, ChinaState Key Laboratory of Electrical Insulation and Power Equipment, Xi’an 710049, ChinaConductive particles are one of the most important defects which can greatly degrade the performance of gas-insulated metal-enclosed switchgear (GIS). Many efforts have been made to clarify the influence on the withstand voltage, understand the flashover mechanism, and build a comprehensive model to describe the particle-initiated flashover. In this study, a partial discharge (PD) signal detected through a photomultiplier (PMT) and recorded by a high-speed data acquisition (DAQ) system was used to analyze the discharge development of a conductive particle-contaminated GIS insulator under constant high AC voltage. An additional PMT was used as a reference to eliminate the dark count of the PMT and the data collection method of a DAQ system was optimized to capture the pulse waveform of each PD to obtain detailed physical information. Spectra of the PD pulse amplitude over pulse width, PD counts within various amplitude ranges over time and phase resolved partial discharge (PRPD) patterns of the PDs in different stages are obtained through the captured PD waveforms. Characteristics of the PDs from the application of the high AC voltage up to the flashover of the insulator were then analyzed, and it was found that the features of the PDs in the near-flashover stage were significantly different to the previous stages.https://www.mdpi.com/1996-1073/13/10/2481partial dischargeinsulation defectphotomultiplier tubePRPD patternflashover |
| spellingShingle | Junping Zhao Zhengjie An Bin Lv Zhicheng Wu Qiaogen Zhang Characteristics of the Partial Discharge in the Development of Conductive Particle-Initiated Flashover of a GIS Insulator Energies partial discharge insulation defect photomultiplier tube PRPD pattern flashover |
| title | Characteristics of the Partial Discharge in the Development of Conductive Particle-Initiated Flashover of a GIS Insulator |
| title_full | Characteristics of the Partial Discharge in the Development of Conductive Particle-Initiated Flashover of a GIS Insulator |
| title_fullStr | Characteristics of the Partial Discharge in the Development of Conductive Particle-Initiated Flashover of a GIS Insulator |
| title_full_unstemmed | Characteristics of the Partial Discharge in the Development of Conductive Particle-Initiated Flashover of a GIS Insulator |
| title_short | Characteristics of the Partial Discharge in the Development of Conductive Particle-Initiated Flashover of a GIS Insulator |
| title_sort | characteristics of the partial discharge in the development of conductive particle initiated flashover of a gis insulator |
| topic | partial discharge insulation defect photomultiplier tube PRPD pattern flashover |
| url | https://www.mdpi.com/1996-1073/13/10/2481 |
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