What is the main Generator and APU Generator load limitation?

What is the main Generator and APU Generator load limitation?

• A. 40 kVA
• B. 50 kVA
• C. 60 kVA
• D. 30 kVA

Answer: (A)

The limit is 40 kVA per generator. In the CRJ-550 electrical system, each source—the two engine-driven main generators and the APU generator—is rated to carry up to 40 kVA. Keeping the load on any one source at or below 40 kVA protects the generators, preserves proper voltage and frequency regulation, and prevents tripping of protective circuits during normal operation and during start-up or transitions. If more power is needed, loads are balanced among the available sources or the APU is used to share the burden, but you never exceed 40 kVA on a single generator. Options that propose higher per-source ratings don’t match the equipment’s rated capacity.

The limit is 40 kVA per generator. In the CRJ-550 electrical system, each source—the two engine-driven main generators and the APU generator—is rated to carry up to 40 kVA. Keeping the load on any one source at or below 40 kVA protects the generators, preserves proper voltage and frequency regulation, and prevents tripping of protective circuits during normal operation and during start-up or transitions. If more power is needed, loads are balanced among the available sources or the APU is used to share the burden, but you never exceed 40 kVA on a single generator. Options that propose higher per-source ratings don’t match the equipment’s rated capacity.