An automatic transfer switch (ATS) is a device used to automatically transfer power supply between two sources in an electrical system. It constantly monitors the voltage and frequency of the main power source and, in the event of a failure or abnormality, it swiftly switches the load to the backup power source.
Tips: How Does the Automatic Transfer Switch Work?
The automatic transfer switch continuously monitors the primary power supply and detects any abnormalities. When a power failure or disruption occurs, the ATS quickly activates the secondary power source. It does so by opening the circuit with the primary power supply and closing the circuit with the backup power source. This transfer of power happens within milliseconds to minimize interruption to the connected electrical systems. The ATS incorporates various control mechanisms, such as relays, sensors, and programmable logic controllers, to monitor the power sources and facilitate the transfer process. It also includes safety features to prevent simultaneous connection of both power sources, protecting against potential damage or dangerous backfeeding.