论文部分内容阅读
煤矿井下电力系统中,大功率设备的启停、电力系统短路故障、启停开关设备和变频设备,会产生浪涌。本文建立了圆柱形隔爆外壳屏蔽衰减模型,研究了圆柱形隔爆外壳的对浪涌电磁辐射的屏蔽特性,研究结果表明屏蔽外壳对于浪涌电磁辐射具有很强的屏蔽作用,研究结果可为煤矿井下电磁兼容标准制定和矿用电工电子产品设计提供依据。
Coal mine power system, power equipment start-stop, short circuit power failure, start-stop switching equipment and frequency conversion equipment, will have a surge. In this paper, a model of cylindrical flameproof enclosure shielding attenuation was established, and the shielding characteristics of cylindrical flameproof enclosure against surge electromagnetic radiation were studied. The results show that the shielding shell has a strong shielding effect against surge electromagnetic radiation. The research results can be Coal mine electromagnetic compatibility standards and mine electrical and electronic products designed to provide the basis.