离合器改进设计：采用新结构的五柱离合器，启动更平稳，传动更可靠。
Amelioration design of clutch: applying new structure clutch with five poles, made the engine starting more stable and transmission more reliable.
介绍了三相五柱式消弧线圈的工作原理，单相电弧接地过电压的工频熄弧理论。
The principle of arc-suppression coil with three phases and five columns , and theory of power frequency extinguishing arcing were introduced.
介绍了三相五柱式消弧线圈及其自动跟踪补偿原理，该消弧线圈在结构上突破了传统消弧线圈的模式，将传统的接地变压器和消弧线圈有机地结合成一个整体。
The arc suppression coil with three phases and five columns can achieve automatic trace and compensation for ground fault capacitive current of power system by the method of rectifying i.
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