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发明公开
EP0313106A3 Electrical switchgear 失效
电气开关装置

Electrical switchgear
摘要：
Electrical switchgear comprises a fixed input contact (59), a fixed output contact (85) and a fixed auxiliary contact (82). A movable contact (83) is movable from a closed position wherein it connects the input and output contacts (59, 85) into an open position wherein it connects the auxiliary and output contacts (82, 85). An arcing electrode (76) having a substantially circular periphery is connected to the input contact (85), and is radially surounded by a coil (78) having a conductive ring (77) on its inner circumference. The ring is radially spaced from the arcing electrode (76) and the parts are arranged so that when the movable contact opens an arc is formed between the moveble contact (83) and the arcing electrode (76), the arc commutates to a location between the arcing electrode (76) and the conductive ring (77) and arcing current flows through the coil and produces a magnetic field which causes the arc to rotate and become extinguished. The arcing electrode (76) is permanently electrically connected to the input contact (59), and the coil winding is electrically connected between the conductive ring (77) and the auxiliary contact (82).
摘要（中）：

电开关装置包括固定输入触点（59），固定输出触点（85）和固定辅助触点（82）。 可动触点（83）可从其连接输入和输出触点（59,85）的闭合位置移动到其连接辅助触点和输出触点（82,85）的打开位置。 具有大致圆形外围的电弧电极（76）连接到输入触点（85），并且在其内圆周上由具有导电环（77）的线圈（78）径向地包围。 该环与电弧电极（76）径向间隔开，并且这些部件被这样设置，使得当可动触头打开时，在可动触头（83）和电弧电极（76）之间形成电弧，电弧换向到 电弧电极（76）和导电环（77）以及电弧电流流过线圈并产生使电弧旋转并消失的磁场。 电弧电极（76）永久地电连接到输入触点（59），并且线圈绕组电连接在导电环（77）和辅助触点（82）之间。

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