Sunday, September 16, 2012

What is Automatic Transfer Switch (ATS) ??


Automatic Transfer Switch or ATS is a device that transfers electrical loads between two dissimilar sources of power by using either automatic or manual controls, ATS are most commonly use by facilities with a standby power system and a single utility feed. The transfer switch senses when utility power has been lost, send a start signal to the standby generator and transfer the load.


Transfer Modes
- Open Transition (Break-before make switching action)
- Closed Transition (Make-before-break switching action)

From: Cummins Power Generation


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