电源切换开关 Transfer switch
（重定向自Automatic Transfer Switch）
电源切换开关（Transfer switch），是一种将负载线路由一电源切换至另一电源的电源回路切换设备。又分为手动与自动两种。自动电源切换开关（Automatic Transfer Switch），简称ATS，能够在遇到断电或停电的时候，自动切换到备用电源，因此能够继续正常供电。ATS常用于医院、银行、电信机房、大厦、军事设施等，需要紧急供电系统的场所。
Automatic Transfer Switch
中文百科
英语百科
Transfer switch 电源切换开关
（重定向自Automatic Transfer Switch）
A transfer switch is an electrical switch that switches a load between two sources. Some transfer switches are manual, in that an operator effects the transfer by throwing a switch, while others are automatic and switch when they sense one of the sources has lost or gained power.
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