Definition
A SAT is the test performed after the equipment is installed on site, verifying that it works together with everything else already there. Where FATFactory Acceptance Test - testing of equipment at the supplier before it ships to site. tests the componentA replaceable part inside a fixed asset. It has its own age, its own history and its own service life - independent of the asset it sits in. in isolation at the supplier, SAT tests the interaction: earthing, communication with the control system, protection settings against the actual grid. Many faults can only be found here, because they arise in the interface between the delivery and the existing installation. An approved SAT is normally the condition for putting the installation into operation.