Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables
The knowledge of ground return current in fault occurrence plays a key role in the dimensioning of the earthing grid of substations and of cable sealing end compounds, in the computation of rise of earth potential at substation sites and in electromagnetic interference (EMI) on neighbouring paralle...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2014-12-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/7/12/8116 |
| _version_ | 1798005323430100992 |
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| author | Roberto Benato Sebastian Dambone Sessa Fabio Guglielmi Ertugrul Partal Nasser Tleis |
| author_facet | Roberto Benato Sebastian Dambone Sessa Fabio Guglielmi Ertugrul Partal Nasser Tleis |
| author_sort | Roberto Benato |
| collection | DOAJ |
| description | The knowledge of ground return current in fault occurrence plays a key role in the dimensioning of the earthing grid of substations and of cable sealing end compounds, in the computation of rise of earth potential at substation sites and in electromagnetic interference (EMI) on neighbouring parallel metallic conductors (pipes, handrails, etc.). Moreover, the ground return current evaluation is also important in steady-state regime since this stray current can be responsible for EMI and also for alternating current (AC) corrosion. In fault situations and under some assumptions, the ground return current value at a substation site can be computed by means of k-factors. The paper shows that these simplified and approximated approaches have a lot of limitations and only multiconductor analysis can show the ground return current behaviour along the cable (not only the two end values) both in steady-state regime and in short circuit occurrence (e.g., phase-to-ground and phase-to-phase-to-ground). Multiconductor cell analysis (MCA) considers the cable system in its real asymmetry without simplified and approximated hypotheses. The sensitivity of ground return current on circuit parameters (cross-bonding box resistances, substation earthing resistances, soil resistivity) is presented in the paper. |
| first_indexed | 2024-04-11T12:37:22Z |
| format | Article |
| id | doaj.art-0ef4ad9dfe4c4456aeef913aa08931b0 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T12:37:22Z |
| publishDate | 2014-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-0ef4ad9dfe4c4456aeef913aa08931b02022-12-22T04:23:35ZengMDPI AGEnergies1996-10732014-12-017128116813110.3390/en7128116en7128116Ground Return Current Behaviour in High Voltage Alternating Current Insulated CablesRoberto Benato0Sebastian Dambone Sessa1Fabio Guglielmi2Ertugrul Partal3Nasser Tleis4Department of Industrial Engineering, University of Padova, Via Gradenigo, 6/A, Padova 35131, ItalyDepartment of Industrial Engineering, University of Padova, Via Gradenigo, 6/A, Padova 35131, ItalyDepartment of Industrial Engineering, University of Padova, Via Gradenigo, 6/A, Padova 35131, ItalyNational Grid Electricity Transmission, Gallows Hill, Warwick CV34 6DA, UKPower & Water Planning Division, P.O. Box 564, Dubai, UAEThe knowledge of ground return current in fault occurrence plays a key role in the dimensioning of the earthing grid of substations and of cable sealing end compounds, in the computation of rise of earth potential at substation sites and in electromagnetic interference (EMI) on neighbouring parallel metallic conductors (pipes, handrails, etc.). Moreover, the ground return current evaluation is also important in steady-state regime since this stray current can be responsible for EMI and also for alternating current (AC) corrosion. In fault situations and under some assumptions, the ground return current value at a substation site can be computed by means of k-factors. The paper shows that these simplified and approximated approaches have a lot of limitations and only multiconductor analysis can show the ground return current behaviour along the cable (not only the two end values) both in steady-state regime and in short circuit occurrence (e.g., phase-to-ground and phase-to-phase-to-ground). Multiconductor cell analysis (MCA) considers the cable system in its real asymmetry without simplified and approximated hypotheses. The sensitivity of ground return current on circuit parameters (cross-bonding box resistances, substation earthing resistances, soil resistivity) is presented in the paper.http://www.mdpi.com/1996-1073/7/12/8116ground return currentinsulated cablesmulticonductor cell analysisasymmetric systems |
| spellingShingle | Roberto Benato Sebastian Dambone Sessa Fabio Guglielmi Ertugrul Partal Nasser Tleis Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables Energies ground return current insulated cables multiconductor cell analysis asymmetric systems |
| title | Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables |
| title_full | Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables |
| title_fullStr | Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables |
| title_full_unstemmed | Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables |
| title_short | Ground Return Current Behaviour in High Voltage Alternating Current Insulated Cables |
| title_sort | ground return current behaviour in high voltage alternating current insulated cables |
| topic | ground return current insulated cables multiconductor cell analysis asymmetric systems |
| url | http://www.mdpi.com/1996-1073/7/12/8116 |
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