Adaptive Zero-Sequence Overcurrent Criterion for Earth Fault Detection for Fault Current Passage Indicators in Resistor Grounded Medium Voltage Networks
Earth faults are the most common disturbances in medium voltage networks. They cause threats to equipment and people, and reduce the quality and reliability of electricity supply. Detection and localization of earth faults is a key challenge to network operators, therefore it is important to constan...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2021-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9416642/ |
| _version_ | 1818850474263052288 |
|---|---|
| author | Bartosz Olejnik |
| author_facet | Bartosz Olejnik |
| author_sort | Bartosz Olejnik |
| collection | DOAJ |
| description | Earth faults are the most common disturbances in medium voltage networks. They cause threats to equipment and people, and reduce the quality and reliability of electricity supply. Detection and localization of earth faults is a key challenge to network operators, therefore it is important to constantly develop criteria that allow for an unequivocal assessment of the current network state. This article focuses analysis of effectiveness of classic zero-sequence overcurrent criterion and on modification of the zero-sequence overcurrent criterion applied in fault current passage indicators, which are the devices used to effectively detect and locate earth faults. Two new adaptation criteria for networks with resistor grounded neutral point have been proposed, which enable significant improvement of the effectiveness of earth faults detection, in particular high impedance ones. The effectiveness of the criteria was verified computationally and in simulations. In certain situations, the proposed solutions may be over 40% more effective than the classic criterion. The value of detected transition resistance <inline-formula> <tex-math notation="LaTeX">$R_{F} $ </tex-math></inline-formula> also increases significantly. All the above-mentioned advantages make their potential use in practice very beneficial. |
| first_indexed | 2024-12-19T06:49:42Z |
| format | Article |
| id | doaj.art-531444528f76468e82d950c968166911 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T06:49:42Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-531444528f76468e82d950c9681669112022-12-21T20:31:47ZengIEEEIEEE Access2169-35362021-01-019639526396510.1109/ACCESS.2021.30760229416642Adaptive Zero-Sequence Overcurrent Criterion for Earth Fault Detection for Fault Current Passage Indicators in Resistor Grounded Medium Voltage NetworksBartosz Olejnik0https://orcid.org/0000-0003-2496-7091Faculty of Environmental and Power Engineering, Poznan University of Technology, Poznan, PolandEarth faults are the most common disturbances in medium voltage networks. They cause threats to equipment and people, and reduce the quality and reliability of electricity supply. Detection and localization of earth faults is a key challenge to network operators, therefore it is important to constantly develop criteria that allow for an unequivocal assessment of the current network state. This article focuses analysis of effectiveness of classic zero-sequence overcurrent criterion and on modification of the zero-sequence overcurrent criterion applied in fault current passage indicators, which are the devices used to effectively detect and locate earth faults. Two new adaptation criteria for networks with resistor grounded neutral point have been proposed, which enable significant improvement of the effectiveness of earth faults detection, in particular high impedance ones. The effectiveness of the criteria was verified computationally and in simulations. In certain situations, the proposed solutions may be over 40% more effective than the classic criterion. The value of detected transition resistance <inline-formula> <tex-math notation="LaTeX">$R_{F} $ </tex-math></inline-formula> also increases significantly. All the above-mentioned advantages make their potential use in practice very beneficial.https://ieeexplore.ieee.org/document/9416642/Adaptive criterionearth faultearth fault passage indicatormedium voltage networkresistor grounded neutral pointzero-sequence current |
| spellingShingle | Bartosz Olejnik Adaptive Zero-Sequence Overcurrent Criterion for Earth Fault Detection for Fault Current Passage Indicators in Resistor Grounded Medium Voltage Networks IEEE Access Adaptive criterion earth fault earth fault passage indicator medium voltage network resistor grounded neutral point zero-sequence current |
| title | Adaptive Zero-Sequence Overcurrent Criterion for Earth Fault Detection for Fault Current Passage Indicators in Resistor Grounded Medium Voltage Networks |
| title_full | Adaptive Zero-Sequence Overcurrent Criterion for Earth Fault Detection for Fault Current Passage Indicators in Resistor Grounded Medium Voltage Networks |
| title_fullStr | Adaptive Zero-Sequence Overcurrent Criterion for Earth Fault Detection for Fault Current Passage Indicators in Resistor Grounded Medium Voltage Networks |
| title_full_unstemmed | Adaptive Zero-Sequence Overcurrent Criterion for Earth Fault Detection for Fault Current Passage Indicators in Resistor Grounded Medium Voltage Networks |
| title_short | Adaptive Zero-Sequence Overcurrent Criterion for Earth Fault Detection for Fault Current Passage Indicators in Resistor Grounded Medium Voltage Networks |
| title_sort | adaptive zero sequence overcurrent criterion for earth fault detection for fault current passage indicators in resistor grounded medium voltage networks |
| topic | Adaptive criterion earth fault earth fault passage indicator medium voltage network resistor grounded neutral point zero-sequence current |
| url | https://ieeexplore.ieee.org/document/9416642/ |
| work_keys_str_mv | AT bartoszolejnik adaptivezerosequenceovercurrentcriterionforearthfaultdetectionforfaultcurrentpassageindicatorsinresistorgroundedmediumvoltagenetworks |