Device for online monitoring of insulation faults in high-voltage switchgears
Partial discharges are the major cause of deterioration in the insulation characteristics of switchgears. Therefore, timely detection of partial discharge in switchgear and potential insulation faults is an urgent problem that needs to be addressed in the power supervision industry. In this study, a...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-02-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147721999284 |
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| _version_ | 1849682890555654144 |
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| author | Jiajia Song Jinbo Zhang Xinnan Fan |
| author_facet | Jiajia Song Jinbo Zhang Xinnan Fan |
| author_sort | Jiajia Song |
| collection | DOAJ |
| description | Partial discharges are the major cause of deterioration in the insulation characteristics of switchgears. Therefore, timely detection of partial discharge in switchgear and potential insulation faults is an urgent problem that needs to be addressed in the power supervision industry. In this study, a device was proposed for online monitoring of high-voltage switchgears based on pulse current method and ozone (O 3 ) detection. The pulse current method obtains the PD signal by monitoring the phase holes on the switch indicator. Occurrence of a partial discharge in a certain phase leads to the production of a discharge pulse, which can be coupled out by a capacitive sensor. The current spectrum and the O 3 produced by partial discharge were processed via fast Fourier transform for accurate diagnosis of the occurrence of partial discharge and its severity in switchgears. The proposed method allows for convenient acquisition of the partial discharge signal, simple installation of the device, and realization with inexpensive sensors. |
| format | Article |
| id | doaj-art-c86e44af354d4f42a739cbce3742bc13 |
| institution | DOAJ |
| issn | 1550-1477 |
| language | English |
| publishDate | 2021-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-c86e44af354d4f42a739cbce3742bc132025-08-20T03:24:03ZengWileyInternational Journal of Distributed Sensor Networks1550-14772021-02-011710.1177/1550147721999284Device for online monitoring of insulation faults in high-voltage switchgearsJiajia Song0Jinbo Zhang1Xinnan Fan2Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Changzhou, ChinaJiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Changzhou, ChinaJiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Changzhou, ChinaPartial discharges are the major cause of deterioration in the insulation characteristics of switchgears. Therefore, timely detection of partial discharge in switchgear and potential insulation faults is an urgent problem that needs to be addressed in the power supervision industry. In this study, a device was proposed for online monitoring of high-voltage switchgears based on pulse current method and ozone (O 3 ) detection. The pulse current method obtains the PD signal by monitoring the phase holes on the switch indicator. Occurrence of a partial discharge in a certain phase leads to the production of a discharge pulse, which can be coupled out by a capacitive sensor. The current spectrum and the O 3 produced by partial discharge were processed via fast Fourier transform for accurate diagnosis of the occurrence of partial discharge and its severity in switchgears. The proposed method allows for convenient acquisition of the partial discharge signal, simple installation of the device, and realization with inexpensive sensors.https://doi.org/10.1177/1550147721999284 |
| spellingShingle | Jiajia Song Jinbo Zhang Xinnan Fan Device for online monitoring of insulation faults in high-voltage switchgears International Journal of Distributed Sensor Networks |
| title | Device for online monitoring of insulation faults in high-voltage switchgears |
| title_full | Device for online monitoring of insulation faults in high-voltage switchgears |
| title_fullStr | Device for online monitoring of insulation faults in high-voltage switchgears |
| title_full_unstemmed | Device for online monitoring of insulation faults in high-voltage switchgears |
| title_short | Device for online monitoring of insulation faults in high-voltage switchgears |
| title_sort | device for online monitoring of insulation faults in high voltage switchgears |
| url | https://doi.org/10.1177/1550147721999284 |
| work_keys_str_mv | AT jiajiasong deviceforonlinemonitoringofinsulationfaultsinhighvoltageswitchgears AT jinbozhang deviceforonlinemonitoringofinsulationfaultsinhighvoltageswitchgears AT xinnanfan deviceforonlinemonitoringofinsulationfaultsinhighvoltageswitchgears |