檢視双电源自动切换开关的原始碼

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|<center>'''双电源自动切换开关'''<br><img
src=" https://gimg2.baidu.com/image_search/src=http%3A%2F%2Ftgi1.jia.com%2F116%2F072%2F16072441.jpg&refer=http%3A%2F%2Ftgi1.jia.com&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1671462167&t=67bfa09d097a4ff1c09a878e44c5f1c6" width="280"></center><small>  圖片來自百度</small> 
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'''双电源自动切换开关'''是一种由微[[处理器]]控制，用于电网系统中网电与网电或网电与发电机电源启动切换的装置，可使电源连续源供电。系列双电源，当常用电突然故障或停电时，通过双[[电源切换开关]]，自动投入到备用电源上，（小负荷下备用电源也可由发电机供电，）使设备仍能正常运行。最常见的是电梯、消防、监控上、照明等。

*中文名:[[双电源]]

*外文名:Dual power supply

*功    能:转换开关，检测电源电路

*工作模式:自投自复(R)式　

*适用范围:电梯、消防、监控上、照明等