Thermal Effect of Single Loop Shield on High-Voltage Cable Line Capacity
The paper deals with a single-loop shield with an asymmetric magnetic coupling used for a magnetic field mitigation of a high-voltage three-phase cable line. The goal is to evaluate a thermal effect of this shield on a cable line capacity. To calculate the flat cable line capacity in the non-shielde...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Academy of Sciences of Moldova
2021-03-01
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| Series: | Problems of the Regional Energetics |
| Subjects: | |
| Online Access: | https://journal.ie.asm.md/assets/files/01_01_49_2021.pdf |
| _version_ | 1818717958949568512 |
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| author | Tkachenko O. Grinchenko V. Dobrodeyev P. |
| author_facet | Tkachenko O. Grinchenko V. Dobrodeyev P. |
| author_sort | Tkachenko O. |
| collection | DOAJ |
| description | The paper deals with a single-loop shield with an asymmetric magnetic coupling used for a magnetic field mitigation of a high-voltage three-phase cable line. The goal is to evaluate a thermal effect of this shield on a cable line capacity. To calculate the flat cable line capacity in the non-shielded case, we use a standard IEC 60287. To achieve the goal we carry out a numerical simulation of the thermal field when the shield is installed. Wherein, we deal with two specific sections. One is a long section with the shield being distant from the cable line. The other is a relatively short section where the shield is located near the power cables. The thermal field is applied for a long section in a two-dimensional formulation, and a three-dimensional formulation is used for the short section. Hence, we have obtained the dependences of the maximum temperature of the power cables on parameters of the shield and its location height above the cable line. The most significant allowable cross-sections of the shield cable and their location height have been determined, when the thermal effect of the shield does not decrease the cable line capacity. These results have ensured the maximum cable line capacity while shielding. The shield temperature is shown to exceed the allowable level in the short section. To reduce it the thermal backfill has been used. We recommend the values of its thermal resistivity to be used for different parameters of the single-loop shield. |
| first_indexed | 2024-12-17T19:43:26Z |
| format | Article |
| id | doaj.art-28410bed0ee04527aee778491dd46e84 |
| institution | Directory Open Access Journal |
| issn | 1857-0070 |
| language | English |
| last_indexed | 2024-12-17T19:43:26Z |
| publishDate | 2021-03-01 |
| publisher | Academy of Sciences of Moldova |
| record_format | Article |
| series | Problems of the Regional Energetics |
| spelling | doaj.art-28410bed0ee04527aee778491dd46e842022-12-21T21:34:55ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702021-03-01491111https://doi.org/10.52254/1857-0070.2021.1-49.01Thermal Effect of Single Loop Shield on High-Voltage Cable Line CapacityTkachenko O.0Grinchenko V.1Dobrodeyev P.2State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine”State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine”State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” Kharkiv, UkraineThe paper deals with a single-loop shield with an asymmetric magnetic coupling used for a magnetic field mitigation of a high-voltage three-phase cable line. The goal is to evaluate a thermal effect of this shield on a cable line capacity. To calculate the flat cable line capacity in the non-shielded case, we use a standard IEC 60287. To achieve the goal we carry out a numerical simulation of the thermal field when the shield is installed. Wherein, we deal with two specific sections. One is a long section with the shield being distant from the cable line. The other is a relatively short section where the shield is located near the power cables. The thermal field is applied for a long section in a two-dimensional formulation, and a three-dimensional formulation is used for the short section. Hence, we have obtained the dependences of the maximum temperature of the power cables on parameters of the shield and its location height above the cable line. The most significant allowable cross-sections of the shield cable and their location height have been determined, when the thermal effect of the shield does not decrease the cable line capacity. These results have ensured the maximum cable line capacity while shielding. The shield temperature is shown to exceed the allowable level in the short section. To reduce it the thermal backfill has been used. We recommend the values of its thermal resistivity to be used for different parameters of the single-loop shield.https://journal.ie.asm.md/assets/files/01_01_49_2021.pdfcable lineacapacitycurrent rating |
| spellingShingle | Tkachenko O. Grinchenko V. Dobrodeyev P. Thermal Effect of Single Loop Shield on High-Voltage Cable Line Capacity Problems of the Regional Energetics cable line a capacity current rating |
| title | Thermal Effect of Single Loop Shield on High-Voltage Cable Line Capacity |
| title_full | Thermal Effect of Single Loop Shield on High-Voltage Cable Line Capacity |
| title_fullStr | Thermal Effect of Single Loop Shield on High-Voltage Cable Line Capacity |
| title_full_unstemmed | Thermal Effect of Single Loop Shield on High-Voltage Cable Line Capacity |
| title_short | Thermal Effect of Single Loop Shield on High-Voltage Cable Line Capacity |
| title_sort | thermal effect of single loop shield on high voltage cable line capacity |
| topic | cable line a capacity current rating |
| url | https://journal.ie.asm.md/assets/files/01_01_49_2021.pdf |
| work_keys_str_mv | AT tkachenkoo thermaleffectofsingleloopshieldonhighvoltagecablelinecapacity AT grinchenkov thermaleffectofsingleloopshieldonhighvoltagecablelinecapacity AT dobrodeyevp thermaleffectofsingleloopshieldonhighvoltagecablelinecapacity |