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首页> 外文期刊>High Temperature Material Processes >SIMULATIONS AND MEASUREMENTS OF THE PRE-ARCINGTIMES IN HBC FUSES UNDER TYPICAL ELECTRIC FAULTS
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SIMULATIONS AND MEASUREMENTS OF THE PRE-ARCINGTIMES IN HBC FUSES UNDER TYPICAL ELECTRIC FAULTS

机译：典型电故障下HBC保险丝起弧时间的模拟和测量

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摘要

This work deals with the comparison between calculations and measurements of pre-arcing times in High Breaking Capacity fuses under typical fault current conditions. This paper also describes the temperature evolution and the Joule energy dissipated in a fuse element during the pre-arcing time. By varying typical electrical parameters, namely the closing angle and the power factor, we show that various prospective currents such as those observed in industrial case can be fairly simulated. The pre-arcing time and then the clearing of the fault current are shown to be deeply dependent on these electrical characteristics. We exhibit simulated results of prospective current and supply voltage waves for given closing angles under two typical power factors which are compared with the experimental ones. A comparison between simulated pre-arcing times with experimental ones shows some discrepancies and a discussion on the numerical assumptions is made.
机译：这项工作涉及在典型故障电流条件下高分断能力熔断器中预燃时间的计算和测量之间的比较。本文还描述了在预燃时间内温度变化和熔丝元件中的焦耳能量耗散情况。通过改变典型的电气参数，即闭合角和功率因数，我们表明可以很好地模拟各种预期电流，例如在工业案例中观察到的电流。预燃时间以及故障电流的清除在很大程度上取决于这些电气特性。我们展示了在两种典型功率因数下，给定闭合角下预期电流和电源电压波的模拟结果，并与实验结果进行了比较。模拟预赛时间与实验时间的比较显示出一些差异，并对数值假设进行了讨论。

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