on my previous question quot;Are there Unordinary AC motors out there ?quot;, VShade said that:Mechanical Power (watts) = Torque (newton-meters) X Speed (RPM) / 9549.
The equation you have for power is the power for the specific operation point (torque and speed). Peak torque is the torque the motor can produce for a relatively short time. (The motor would overheat and be damaged if peak torque was sustained.) Continuous torque is the torque the motor can produce constantly without overheating. Also the torque vs.speed graph for a typical motor probably has a substantial region where it sloped downward. In other words, as you increase speed the available torque goes down.
My previous answer should have been: Mechanical Power (kilowatts) = Torque (newton-meters) X Speed (RPM) / 9549 or Mechanical Power (watts) = Torque (newton-meters) X Speed (RPM) / 9.549 Using the correct units/decimal location Power at peak torque = 55 X 500 / 9.549 = 2880 watts Torque at rated power = 735 X 9.549 / 500 = 14 N-m Torque for 1500 RPM connection = 2035 X 9.549 / 1500 = 12.95 N-m
