Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters
This paper presents the results of a comparative analysis of the dielectric strength of disconnecting vacuum interrupters operating on air and helium. The breakdown voltage <i>U<sub>d</sub></i> was measured in the pressure range from 8.0 × 10<sup>−4</sup> Pa to 3....
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/13/3742 |
| _version_ | 1797529147235368960 |
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| author | Paweł Węgierek Michał Lech Damian Kostyła Czesław Kozak |
| author_facet | Paweł Węgierek Michał Lech Damian Kostyła Czesław Kozak |
| author_sort | Paweł Węgierek |
| collection | DOAJ |
| description | This paper presents the results of a comparative analysis of the dielectric strength of disconnecting vacuum interrupters operating on air and helium. The breakdown voltage <i>U<sub>d</sub></i> was measured in the pressure range from 8.0 × 10<sup>−4</sup> Pa to 3.0 × 10<sup>1</sup> Pa for air and from 8.0 × 10<sup>−4</sup> Pa to 7.0 × 10<sup>2</sup> Pa for helium, while varying the interelectrode distance from 1.0 to 5.0 mm. Dedicated laboratory workstations were used to determine the actual pressure values in the vacuum interrupters tested and to precisely measure and record the dielectric strength results of the test object. It was found that the helium-filled vacuum interrupter maintains its full dielectric strength in significantly larger pressure ranges, while the air-filled vacuum interrupter loses its insulating properties. Thus, it is possible to make vacuum interrupters based on the working medium associated with pure helium, with larger working pressure ratings. Under such conditions, it is easier to maintain the tightness of the device and to limit cut-off currents and overvoltages associated with vacuum switchgear. |
| first_indexed | 2024-03-10T10:09:36Z |
| format | Article |
| id | doaj.art-46cfb3505f5b4b13afa287056a81f8c4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T10:09:36Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-46cfb3505f5b4b13afa287056a81f8c42023-11-22T01:17:09ZengMDPI AGEnergies1996-10732021-06-011413374210.3390/en14133742Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum InterruptersPaweł Węgierek0Michał Lech1Damian Kostyła2Czesław Kozak3Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka 38A, 20-618 Lublin, PolandFaculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka 38A, 20-618 Lublin, PolandFaculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka 38A, 20-618 Lublin, PolandFaculty of Electrical Engineering and Computer Science, Lublin University of Technology, Nadbystrzycka 38A, 20-618 Lublin, PolandThis paper presents the results of a comparative analysis of the dielectric strength of disconnecting vacuum interrupters operating on air and helium. The breakdown voltage <i>U<sub>d</sub></i> was measured in the pressure range from 8.0 × 10<sup>−4</sup> Pa to 3.0 × 10<sup>1</sup> Pa for air and from 8.0 × 10<sup>−4</sup> Pa to 7.0 × 10<sup>2</sup> Pa for helium, while varying the interelectrode distance from 1.0 to 5.0 mm. Dedicated laboratory workstations were used to determine the actual pressure values in the vacuum interrupters tested and to precisely measure and record the dielectric strength results of the test object. It was found that the helium-filled vacuum interrupter maintains its full dielectric strength in significantly larger pressure ranges, while the air-filled vacuum interrupter loses its insulating properties. Thus, it is possible to make vacuum interrupters based on the working medium associated with pure helium, with larger working pressure ratings. Under such conditions, it is easier to maintain the tightness of the device and to limit cut-off currents and overvoltages associated with vacuum switchgear.https://www.mdpi.com/1996-1073/14/13/3742vacuum breakdownvacuum technologyvacuum interrupterheliumswitchgear |
| spellingShingle | Paweł Węgierek Michał Lech Damian Kostyła Czesław Kozak Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters Energies vacuum breakdown vacuum technology vacuum interrupter helium switchgear |
| title | Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters |
| title_full | Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters |
| title_fullStr | Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters |
| title_full_unstemmed | Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters |
| title_short | Study on the Effect of Helium on the Dielectric Strength of Medium-Voltage Vacuum Interrupters |
| title_sort | study on the effect of helium on the dielectric strength of medium voltage vacuum interrupters |
| topic | vacuum breakdown vacuum technology vacuum interrupter helium switchgear |
| url | https://www.mdpi.com/1996-1073/14/13/3742 |
| work_keys_str_mv | AT pawełwegierek studyontheeffectofheliumonthedielectricstrengthofmediumvoltagevacuuminterrupters AT michałlech studyontheeffectofheliumonthedielectricstrengthofmediumvoltagevacuuminterrupters AT damiankostyła studyontheeffectofheliumonthedielectricstrengthofmediumvoltagevacuuminterrupters AT czesławkozak studyontheeffectofheliumonthedielectricstrengthofmediumvoltagevacuuminterrupters |