Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field
Recently, as interest in eco-friendly distributed power has increased, studies on the improvement of the performance of breakers such as DC breakers and on the reliability of existing AC breakers have been actively conducted. To improve the performance and reliability of these breakers, this paper c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/21/8156 |
| _version_ | 1797468361528967168 |
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| author | Young-Maan Cho Hyun-Jong Park Jae-Jun Lee Kun-A Lee |
| author_facet | Young-Maan Cho Hyun-Jong Park Jae-Jun Lee Kun-A Lee |
| author_sort | Young-Maan Cho |
| collection | DOAJ |
| description | Recently, as interest in eco-friendly distributed power has increased, studies on the improvement of the performance of breakers such as DC breakers and on the reliability of existing AC breakers have been actively conducted. To improve the performance and reliability of these breakers, this paper conducted the analysis of characteristics of a low voltage circuit breaker using an external magnetic field. In this experiment, before the current-zero point, the cut-off time to improve the breaker performance is shortened and after the current-zero point, re-ignition, which is associated with reliability, is suppressed. According to the experimental results, the short-circuit characteristics before current-zero show a significant difference of 0.13 ms in the t<sub>21</sub> section, and the dielectric recovery strength after current-zero shows a 13.3% performance improvement in the latter half of the DRV (dielectric recovery voltage) V-t curve. This result has significant meaning because it can be easily improved under the control of the external magnetic field. Hence, it can be applied to the interruption performance improvement of breakers through detailed research in the future. |
| first_indexed | 2024-03-09T19:06:21Z |
| format | Article |
| id | doaj.art-5bf8d1f58d7c4568a9d46698288eb61e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T19:06:21Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-5bf8d1f58d7c4568a9d46698288eb61e2023-11-24T04:32:44ZengMDPI AGEnergies1996-10732022-11-011521815610.3390/en15218156Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic FieldYoung-Maan Cho0Hyun-Jong Park1Jae-Jun Lee2Kun-A Lee3Reliability Assessment Center, Hyundai Electric & Energy Systems Co., Ltd., 17-10 Mabuk-ro, 240 bean-gil, Giheung-gu, Yongin-si 16891, KoreaLauncher Technology Development Division, Korea Aerospace Research Institute, Daejeon 34133, KoreaDepartment of Electrical Engineering, Yuhan University, 590 Gyeongin-ro, Bucheon-si 14780, KoreaSchool of Social Safety System Engineering and Research Center for Safety and Health, Hankyoung National University, 327 Chungang-ro, Anseong-si 17579, KoreaRecently, as interest in eco-friendly distributed power has increased, studies on the improvement of the performance of breakers such as DC breakers and on the reliability of existing AC breakers have been actively conducted. To improve the performance and reliability of these breakers, this paper conducted the analysis of characteristics of a low voltage circuit breaker using an external magnetic field. In this experiment, before the current-zero point, the cut-off time to improve the breaker performance is shortened and after the current-zero point, re-ignition, which is associated with reliability, is suppressed. According to the experimental results, the short-circuit characteristics before current-zero show a significant difference of 0.13 ms in the t<sub>21</sub> section, and the dielectric recovery strength after current-zero shows a 13.3% performance improvement in the latter half of the DRV (dielectric recovery voltage) V-t curve. This result has significant meaning because it can be easily improved under the control of the external magnetic field. Hence, it can be applied to the interruption performance improvement of breakers through detailed research in the future.https://www.mdpi.com/1996-1073/15/21/8156molded case circuit breakerdielectric recovery strengthexternal magnetic fieldshort-circuit characteristics |
| spellingShingle | Young-Maan Cho Hyun-Jong Park Jae-Jun Lee Kun-A Lee Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field Energies molded case circuit breaker dielectric recovery strength external magnetic field short-circuit characteristics |
| title | Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field |
| title_full | Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field |
| title_fullStr | Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field |
| title_full_unstemmed | Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field |
| title_short | Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field |
| title_sort | analysis of characteristics of low voltage circuit breaker by external magnetic field |
| topic | molded case circuit breaker dielectric recovery strength external magnetic field short-circuit characteristics |
| url | https://www.mdpi.com/1996-1073/15/21/8156 |
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