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A coupled fluid-mechanical dynamics analysis method is presented in this paper. A commercial simulation package is used for mechanical dynamics calculation, which employs user-developed dynamic-link library files as routine interface to enable data exchange with gas pressure calculation. This part is responsible for the calculation of mechanical motion, including the tripping of trip trigger, releasing...
In this paper, the design of high voltage vacuum interrupter (VI) is described and the basic test results of designed VI are summarized. In the case of dead-tank type vacuum circuit breaker (VCB), the electric field distortion inside of VI is affected by the earthed metal enclosure. Therefore, the earthed metal enclosure is included in the insulation design and the electric field analysis. The single-phase...
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