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消弧线圈的作用是当电网发生单相接地故障后

网址:www.xiaohuxianqua.cn  2021-03-08  作者:admin    阅读:

消弧线圈的作用是当电网发生单相接地故障后,故障点流过电容电流,消弧线圈提供电感电流进行补偿,使故障点电流降至10A以下,有利于防止弧光过零后重燃,达到灭弧的目的,降低高幅值过电压出现的几率,防止事故进一步扩大。
The function of arc suppression coil is that when the single-phase ground fault occurs in the power grid, the fault point flows through the capacitance current, and the arc suppression coil provides the inductance current to compensate, so that the fault point current drops below 10a, which is conducive to preventing the arc light from re igniting after passing zero, achieving the purpose of arc extinction, reducing the probability of high amplitude overvoltage and preventing the accident from further expanding.
消弧线圈控制器消弧线圈控制器
Arc suppression coil controller
当消弧线圈正确调谐时,不仅可以有效的减少产生弧光接地过电压的机率,还可以有效的抑制过电压的辐值,同时也最大限度的减小了故障点热破坏作用及接地网的电压等。所谓正确调谐,即电感电流接地或等于电容电流,工程上用脱谐度V来描述调谐程度
When the arc suppression coil is properly tuned, it can not only effectively reduce the probability of arc grounding overvoltage, but also effectively suppress the radiation value of overvoltage, and at the same time, it can minimize the thermal damage of fault point and the voltage of grounding grid. The so-called correct tuning means that the inductance current is grounded or equal to the capacitance current, and the degree of tuning is described by the degree of detuning V in engineering

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