Arc Characteristics in Multiple Pole DC Circuit Breakers
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- 2023 IEEE Fifth International Conference on DC Microgrids (ICDCM), 2024, Single, pp. 1-6
- Issue Date:
- 2024-02-19
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Filename | Description | Size | |||
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1728439.pdf | Published version | 3.11 MB |
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Due to the absence of zero crossings in a DC current compared to an AC current DC arc extinguishing is difficult in DC circuit breakers DCCB To overcome this difficulty of arc extinguishing DC circuit breakers are frequently designed and built by series connecting multiple poles of a 3 phase AC circuit breaker During the mechanical contact opening the fault current of the DC circuit gradually reduces as the arc path resistance increases with time The arc can be extinguished quickly if the arc path resistance can be increased quickly By increasing the series connected switches the arc path resistance can be increased This paper presents the arc characteristics of a multiple pole DC circuit breaker based on analytical and experimental approaches
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