main circuit switch

ZVS is achieved for each main switch without any auxiliary circuit. Voltage stress of each main switch is a half of input voltage.

每个主开关电压应力是输入电压的一半，并且全范围实现ZVS而不用附加任何电路。

When the arm runs to the upper and lower two limit position, respectively press the lower limit switch, cut off the main control circuit, variable amplitude motor parking, to limit the role.

当臂杆运行到上下两个极限位置时，分别压下限位开关，切断主控电路，变幅电机停车，达到限位的作用。

This paper introduces a new vacuum load - breaking switch with main and auxiliary circuit, which is of lower current chopping level, higher transferring current.

介绍了一种新型带有主、辅电路的真空负荷开关，它具有低截流、高转移电流。