Design of a mine-used low-voltage leakage protection device
In view of low reliability of leakage protection device of coal mine low-voltage power grid based on line selection principle of zero-sequence power direction, a hardware and software design scheme of mine-used low-voltage leakage protection device was given. Fault line selection is realized accordi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Industry and Mine Automation
2020-02-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.17505 |
| _version_ | 1828488911311077376 |
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| author | ZHENG Qingle RONG Xiang YANG Fan LI Rui |
| author_facet | ZHENG Qingle RONG Xiang YANG Fan LI Rui |
| author_sort | ZHENG Qingle |
| collection | DOAJ |
| description | In view of low reliability of leakage protection device of coal mine low-voltage power grid based on line selection principle of zero-sequence power direction, a hardware and software design scheme of mine-used low-voltage leakage protection device was given. Fault line selection is realized according to differences of phase difference between zero-sequence current and zero-sequence voltage in non-fault branch and fault branch when single-phase grounding fault occurs in zero-sequence reactor grounding system with parallel resistance. The simulation and test results show that the device is not affected by zero sequence reactor compensation in power grid, and can operate quickly and reliably when single-phase grounding fault occurs. |
| first_indexed | 2024-12-11T10:16:05Z |
| format | Article |
| id | doaj.art-cfd32d508d734bd0964fc2e7e16a3a34 |
| institution | Directory Open Access Journal |
| issn | 1671-251X |
| language | zho |
| last_indexed | 2024-12-11T10:16:05Z |
| publishDate | 2020-02-01 |
| publisher | Editorial Department of Industry and Mine Automation |
| record_format | Article |
| series | Gong-kuang zidonghua |
| spelling | doaj.art-cfd32d508d734bd0964fc2e7e16a3a342022-12-22T01:11:36ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2020-02-01462121710.13272/j.issn.1671-251x.17505Design of a mine-used low-voltage leakage protection deviceZHENG QingleRONG XiangYANG FanLI RuiIn view of low reliability of leakage protection device of coal mine low-voltage power grid based on line selection principle of zero-sequence power direction, a hardware and software design scheme of mine-used low-voltage leakage protection device was given. Fault line selection is realized according to differences of phase difference between zero-sequence current and zero-sequence voltage in non-fault branch and fault branch when single-phase grounding fault occurs in zero-sequence reactor grounding system with parallel resistance. The simulation and test results show that the device is not affected by zero sequence reactor compensation in power grid, and can operate quickly and reliably when single-phase grounding fault occurs.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.17505low-voltage power grid of coal mineleakage protectionfault line selectionsingle-phase grounding faultzero-sequence reactor |
| spellingShingle | ZHENG Qingle RONG Xiang YANG Fan LI Rui Design of a mine-used low-voltage leakage protection device Gong-kuang zidonghua low-voltage power grid of coal mine leakage protection fault line selection single-phase grounding fault zero-sequence reactor |
| title | Design of a mine-used low-voltage leakage protection device |
| title_full | Design of a mine-used low-voltage leakage protection device |
| title_fullStr | Design of a mine-used low-voltage leakage protection device |
| title_full_unstemmed | Design of a mine-used low-voltage leakage protection device |
| title_short | Design of a mine-used low-voltage leakage protection device |
| title_sort | design of a mine used low voltage leakage protection device |
| topic | low-voltage power grid of coal mine leakage protection fault line selection single-phase grounding fault zero-sequence reactor |
| url | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.17505 |
| work_keys_str_mv | AT zhengqingle designofamineusedlowvoltageleakageprotectiondevice AT rongxiang designofamineusedlowvoltageleakageprotectiondevice AT yangfan designofamineusedlowvoltageleakageprotectiondevice AT lirui designofamineusedlowvoltageleakageprotectiondevice |