In the main interface, power supply will be no operation automatically after about 30 seconds off.
在主界面下，电源将在无任何操作的约30秒后自动断电。
When there are bias excitation, controllable silicon failure, over current and other failures, KA5 gets absorbed and breaker loop trips by powered on so as for switching off main power supply.
KA5为跳闸报警继电器。当设备产生偏励磁、可控硅故障、过电流等故障时，KA5吸合，断路器分励线圈得电跳闸，切断主电源。
The work of switching power supply are adjusted in the on-off state, the main advantage is higher efficiency, up to 70% 95%.
开关稳压电源的调整工作在开关状态，主要的优越性就是变换效率高，可达70% 95%。
Warning: Switch off main power supply before maintenance!
警告：维护前请先切断主电源！
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；
Switch off main power supply before maintenance.
维护前请切断主电源。
Switch off main power supply before maintenance.
维护前请切断主电源。
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