What is the maximum generator capacity for a 2-minute burst?

• A. 300 amps
• B. 450 amps
• C. 500 amps
• D. 600 amps

Answer: (B)

Short-term overcurrent capability is built into the generator system to handle brief spikes in electrical demand. The PC-12 NGX generators can deliver more than their continuous rating for a limited time, but there are limits to protect cooling and windings. The continuous rating is 300 amps, but for a two-minute burst you’re allowed up to 450 amps. This means you can momentarily pull more current than the continuous rating to handle transient loads, then you must reduce the load to prevent overheating. The other figures listed exceed the allowable two-minute burst or are just the continuous rating, so they aren’t correct.