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- Title
Analysis of the Vacuum Arc Interruption Process in Aviation Intermediate-Frequency Power Supply Systems.
- Authors
Yuan Jiang; Jianwen Wu; Mingxuan Chen; Wenlei Huo
- Abstract
In this paper, we present our research into the interruption performance of vacuum circuit breakers in aviation intermediate-frequency (360 Hz to 800 Hz) power supply systems. Intermediate-frequency vacuum arc experiments were carried out in interrupters with a diameter of 41 mm and CuCr50 alloy contact material. The results show that, as the frequency and peak value of the current increase, both the peak value and rise rate of the intermediate-frequency vacuum arc voltage also increase, and the interruption ability decreases. However, compared to the power frequency current at the same value, the erosion of the contacts is weaker over a shorter arc period. When the vacuum arc reignites, metal droplets are emitted from the contacts. The drive force is from the center of the contact to the edge. If the density of the plasmas and metal vapors and the number of the metal droplets reaches a certain level, the arc may break down, which will cause the interruption to fail.
- Subjects
VACUUM arcs; POWER resources; ELECTRIC power; COPPER alloys; METAL vapors
- Publication
Energies (19961073), 2017, Vol 10, Issue 3, p353
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en10030353