According to several conditions when power is fed inversely in power source switching to dual power sources users,this paper describes and analyzes technically the practical solutions to three different switching modes,including electric switching with power off,electric switching with power on and manual switching with power on.
针对高压双电源用户在电级切换时出现倒送电的几种情况,从技术角度上,就停电电动切换、不停电电动切换、不停电手动切换三种切换方式下采取的具体措施,进行了阐述和分析。
Switch controller guarding against forgetting to turn off power supply based on hardware control
基于硬件控制防遗忘关断电源开关控制器
"Shutdown the PC, disconnect the power cord"
关闭电脑电源并且断开电源线。
Make sure switch is OFF before turning on power.
接通电源前,应确保开关处于断开位置。
Set the main switch selector to (L) lock to turn off the power.
把主选择开关转到l（锁定）,断开电源。
Switch the power off before moving either of these switches.
在拨动任一开关前，必须断开电源。
This fact enables the supply to be turned off as required by a switch.
这就使我们在需要断电时就能用开关切断电源。
press the on/off switch
按开关通电[断电]
Heater must be disconnected from power supply before servicing switch.
在修理热水器开关前,务必切断电源
Failure diagnosis and analysis of DC/DC switching power supply single-chip
DC/DC单片开关电源故障分析与诊断
Safety main electric switch handle on the door tothe electric cabinet, which cuts off the main supply when the door is opened.
电柜门把手联动电源开关，在门被打开时总电源被自动切断。
"Before any work is done on the heater, disconnect all power to the heater by opening the switch at the main electrical circuit breaker of fuse box."
在调节温度控制器的温度设置之前,请首先关闭电源开关,切断电源。
Main breakers provide overcurrent protection and a single disconnect point for all power in a switchboard or device.
主开关能够提供过电流保护，是配电盘或设备的电源断开点。
Optically Triggered Changing Flux Superconducting Switch and the Inductive Pulsed Power Supply
激光触发变磁超导断路开关和功率脉冲电源
Study of Fault Diagnosis of Power Supply Based on Wavelet Neural Network
基于小波神经网络的开关电源的故障诊断
Main switch selector: Sets the camera to L (lock: power is turned off), and A (Auto), or M (Manual) operation.
主开关选择器：设置相机在l（锁定：电源断开）,A（自动）或M（手动）操作。
The unit can be started with the breaker or switch opened using the generator step-up transformer as a source of off-site power.
机组可在断路器或负荷开关打开时,采用发电机升压变压器作为一种非本电厂电源来起动。
Disconnect power. Wait 60 minutes before opening lamp housing
断开电源,等60分钟后再打开灯罩板.
The Application of Soft Switch Technology in Color Television Power Supply;
软开关技术在彩电开关电源中的应用