Reply to post: Re: 110%

Rocket Lab CEO reflects on company's humble beginnings as a drainpipe

Alan Brown Silver badge

Re: 110%

On gas turbines, 100% is usually the continuous rating where exceeding it comes with rapidly dimininishing lifespans due to heat/blade stress in the turbines

On electric motors, 100% is usually the continuous rating where exceeding it comes with thermal penalties and you risk melting down the windings/insulation breakdown if the motor overheats(*)

(*) My ancient EV's motor is rated for 24kW continuous, 48kW for 5 minutes or 64kW for one minute. People have tweaked it to get significantly higher output (over 100kW) by bumping up cooling flow and/or limiting peak power duration and/or tighter thermal management - the ultimate limitation is how much torque the gearbox can transmit before self-destructing - it's impressive for being a bog-standard heavy-duty forklift motor at heart)

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