消弧线圈二次侧阻尼及接地选线原理

Arc-Suppression Coil with Secondary Damping and Principle of Earth Line Selection

针对调匝式消弧线圈阻尼电阻直接串接在一次回路中的诸多问题,设计了阻尼电阻安装在消弧线圈二次侧的自动调谐及选线装置。给出了二次阻尼电阻值的选取方法、电网电容电流检测方法、接地选线方法及接地故障与串联谐振的辨识方法。整套装置运行稳定,补偿效果良好,接地选线精度高。

To solve several problems existing in the device of automatic tuning arc-suppression coil with primary damping,this paper designed a device of automatic tuning arc-suppression coil with secondary damping.The selective method of secondary damping resistance was given,as well as testing method of network capacitive current,earth line selection method,identification method of earth fault detection and series resonance.The complete set of device operates stably with good compensation effect and high accuracy earth line selection.