Automatic Transfer System The Automatic Transfer System (ATS) provides increased system reliability for critical loads. The ATS automatically selects between two sources of primary power to maintain voltage to the load. Voltage interruption to the customer is less than 10 cycles. Trayer’s ATS control features a touch-control panel, which provides a dynamic, colored ATS circuit diagram and allows complete control configuration from the touch panel. The intuitive design brings a new level of simplicity to set-up and operation of an ATS system. SCADA connectivity is supported. For zero-cycle interruption, refer to Trayer’s Primary Loop Protection switchgear and relay products.