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Simulation of pressure relief valve movement in the compression volume of a self-blast interrupter

机译:一种自爆式断路器压缩体积压力浮雕阀运动的仿真

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Recently, the self-blast principle of extinguishing the arc by the blast pressure which is generated by the arc itself has been widely applied to the high voltage circuit breaker. In the self-blast principle, the pressure relief valve fitted on the piston is opened to release excessive pressure in the compression volume during high current interruption. The design of the pressure relief valve operation is important for the performance of self-blast interrupter. Practically, the pressure relief valve is actuated by spring force and designed to open when the overpressure becomes greater than the designated operating pressure difference. In this paper, the actual pressure measurement result of the compression volume to understand the movement of the pressure relief valve are presented. The analytic model which describes the movement of the pressure relief valve are proposed, and the effects of different pressure relief valve models are analyzed by gas flow simulation tools.
机译:最近,通过电弧本身产生的爆破压力灭火的自喷砂原理已被广泛应用于高压断路器。在自喷砂原理中,打开在活塞上装配在活塞上的减压阀以在高电流中断期间释放压缩体积的过度压力。减压阀操作的设计对于自发断层器的性能很重要。实际上,压力释放阀通过弹簧力致动并且当超压变得大于指定的操作压力差时打开以打开。本文提出了压缩体积的实际压力测量结果,以了解减压阀的移动。提出了描述了减压阀运动的分析模型,通过气流模拟工具分析了不同减压阀模型的影响。

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