What is an Automatic Transfer Switch (ATS) in aircraft power systems, and how does it ensure critical loads stay powered?

What is an Automatic Transfer Switch (ATS) in aircraft power systems, and how does it ensure critical loads stay powered?

• A. It automatically isolates the entire electrical system during faults
• B. It detects source failure and transfers the load to an alternate source with minimal interruption
• C. It increases voltage to all buses during a fault
• D. It physically switches the aircraft to external power only

Answer: (B)