Field experiment using transient energy method to locate a single-phase to ground fault
Distribution networks in China and several other countries are predominantly neutral inefficiently grounding systems (NIGSs), and more than 80% of the faults in distribution networks are single-phase-to-ground (SPG) faults. Because of the weak fault current and imperfect monitoring equipment configu...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2020-12-01
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| Series: | Global Energy Interconnection |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096511721000025 |
| _version_ | 1818576054906781696 |
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| author | Wei Xie Xuewen Wang Chen Fang Hengxu Zhang Fang Shi Xiaodong Xing Baicong Sun |
| author_facet | Wei Xie Xuewen Wang Chen Fang Hengxu Zhang Fang Shi Xiaodong Xing Baicong Sun |
| author_sort | Wei Xie |
| collection | DOAJ |
| description | Distribution networks in China and several other countries are predominantly neutral inefficiently grounding systems (NIGSs), and more than 80% of the faults in distribution networks are single-phase-to-ground (SPG) faults. Because of the weak fault current and imperfect monitoring equipment configurations, methods used to determine the faulty line sections with SPG faults in NIGSs are ineffective. The development and application of distribution-level phasor measurement units (PMUs) provide further comprehensive fault information for fault diagnosis in a distribution network. When an SPG fault occurs, the transient energy of the faulted line section tends to be higher than the sum of the transient energies of other line sections. In this regard, transient energy-based fault location algorithms appear to be a promising resolution. In this study, a field test plan was designed and implemented for a 10 kV distribution network. The test results demonstrate the effectiveness of the transient energy-based SPG location method in practical distribution networks. |
| first_indexed | 2024-12-15T00:49:03Z |
| format | Article |
| id | doaj.art-c095e941cdf94b8e959f0f230376e7a9 |
| institution | Directory Open Access Journal |
| issn | 2096-5117 |
| language | English |
| last_indexed | 2024-12-15T00:49:03Z |
| publishDate | 2020-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Global Energy Interconnection |
| spelling | doaj.art-c095e941cdf94b8e959f0f230376e7a92022-12-21T22:41:27ZengKeAi Communications Co., Ltd.Global Energy Interconnection2096-51172020-12-0136585594Field experiment using transient energy method to locate a single-phase to ground faultWei Xie0Xuewen Wang1Chen Fang2Hengxu Zhang3Fang Shi4Xiaodong Xing5Baicong Sun6State Grid Shanghai Municipal Electric Power Company, No. 1122 Yuanshen Road, Shanghai, 200122, P.R. ChinaState Grid Chongqing Electric Power Research Institute, No. 80 Huangshan Road, Chongqing 401123, P.R. China; Key Laboratory of Power System Intelligent Dispatch and Control (Ministry of Education), Shandong University, No. 17923 Jingshi Road, Jinan 250061, P.R. ChinaState Grid Shanghai Electric Power Research Institute, No. 171 Handan Road, Shanghai 200233, P.R. ChinaKey Laboratory of Power System Intelligent Dispatch and Control (Ministry of Education), Shandong University, No. 17923 Jingshi Road, Jinan 250061, P.R. ChinaKey Laboratory of Power System Intelligent Dispatch and Control (Ministry of Education), Shandong University, No. 17923 Jingshi Road, Jinan 250061, P.R. ChinaKey Laboratory of Power System Intelligent Dispatch and Control (Ministry of Education), Shandong University, No. 17923 Jingshi Road, Jinan 250061, P.R. ChinaKey Laboratory of Power System Intelligent Dispatch and Control (Ministry of Education), Shandong University, No. 17923 Jingshi Road, Jinan 250061, P.R. ChinaDistribution networks in China and several other countries are predominantly neutral inefficiently grounding systems (NIGSs), and more than 80% of the faults in distribution networks are single-phase-to-ground (SPG) faults. Because of the weak fault current and imperfect monitoring equipment configurations, methods used to determine the faulty line sections with SPG faults in NIGSs are ineffective. The development and application of distribution-level phasor measurement units (PMUs) provide further comprehensive fault information for fault diagnosis in a distribution network. When an SPG fault occurs, the transient energy of the faulted line section tends to be higher than the sum of the transient energies of other line sections. In this regard, transient energy-based fault location algorithms appear to be a promising resolution. In this study, a field test plan was designed and implemented for a 10 kV distribution network. The test results demonstrate the effectiveness of the transient energy-based SPG location method in practical distribution networks.http://www.sciencedirect.com/science/article/pii/S2096511721000025Single-phase-to-ground faultFault locationNeutral inefficiently grounding systemsDistribution networkDistribution-level PMUTransient energy |
| spellingShingle | Wei Xie Xuewen Wang Chen Fang Hengxu Zhang Fang Shi Xiaodong Xing Baicong Sun Field experiment using transient energy method to locate a single-phase to ground fault Global Energy Interconnection Single-phase-to-ground fault Fault location Neutral inefficiently grounding systems Distribution network Distribution-level PMU Transient energy |
| title | Field experiment using transient energy method to locate a single-phase to ground fault |
| title_full | Field experiment using transient energy method to locate a single-phase to ground fault |
| title_fullStr | Field experiment using transient energy method to locate a single-phase to ground fault |
| title_full_unstemmed | Field experiment using transient energy method to locate a single-phase to ground fault |
| title_short | Field experiment using transient energy method to locate a single-phase to ground fault |
| title_sort | field experiment using transient energy method to locate a single phase to ground fault |
| topic | Single-phase-to-ground fault Fault location Neutral inefficiently grounding systems Distribution network Distribution-level PMU Transient energy |
| url | http://www.sciencedirect.com/science/article/pii/S2096511721000025 |
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