The airplane has how many AC Power Centers?

The airplane has how many AC Power Centers?

• A. 1
• B. 2
• C. 3
• D. 4

Answer: (A)

AC power centers are the central hubs that take power from the aircraft’s generators and external sources and feed it to the airplane’s AC buses. On the CRJ-550, there is one AC Power Center, meaning all AC power distribution goes through a single central hub. This design matches the size and needs of the aircraft, keeping the electrical system simpler and lighter while still providing adequate redundancy because the center receives power from multiple sources (engine generators, the APU, and ground power) and there are automatic transfer paths to keep essential systems powered if one source is unavailable. Having a single center reduces weight and potential points of failure compared with having multiple centers.

AC power centers are the central hubs that take power from the aircraft’s generators and external sources and feed it to the airplane’s AC buses. On the CRJ-550, there is one AC Power Center, meaning all AC power distribution goes through a single central hub. This design matches the size and needs of the aircraft, keeping the electrical system simpler and lighter while still providing adequate redundancy because the center receives power from multiple sources (engine generators, the APU, and ground power) and there are automatic transfer paths to keep essential systems powered if one source is unavailable. Having a single center reduces weight and potential points of failure compared with having multiple centers.