What is an Automatic Transfer Switch or ATS?
An automatic transfer switch (ATS) transfers power from a standard source, like utility, to emergency power, such as a generator when the standard source fails. An ATS senses the power interruption on the line and in turn signals the engine panel to start. When the standard source is restored to normal power, the ATS transfers power back to the standard source and shuts the generator down.
Automatic Transfer Switches are often used in high availability environments such as data centers, manufacturing plants, telecommunication networks and so forth.
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