DC main switch的意思|示意

This device use the principle of additional DC power supply in main feeding switch, and use the principle of direction of zero sequence power in branch feeding switch.

该装置在总馈电开关处的漏电保护装置使用附加直流电源原理，在分支馈电开关处的漏电保护装置使用零序功率方向式保护原理。

GTO dc chopper is adopted for the main power supply while the switch mode control with derivative feedback loop is adopted for the main controller.

主电源采用GTO直流斩波器。主控采用带微分反馈环节的开关斩控模式。

This paper research a soft-switch DC pluse power supply. The turning on of main switch can achieve ZCS, and turning off is ZVS.

脉冲电源的形式和用途有多种，文章研究了一种软开关直流脉冲电源，主开关管可以实现零电流开通、零电压关断；

Main circuit adopts the AC-DC-AC structure and uses IPM(Intelligent Power Module) as main switch.

主电路采用交—直—交电压源型变频器，功率器件采用智能功率模块IPM。