// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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eng.motor-power Calculator
Calculates electric motor output power, efficiency, input current, and heat dissipation from motor data and load conditions. A 90% efficient 10 kW motor dissipates 1.1 kW as heat — thermal management is the primary motor sizing constraint.
Inputs
T
Rotational force (N·m) = force × perpendicular lever arm. Engine torque peaks at lower RPM; horsepower peaks higher.
Rpm
Rate of movement. 1 m/s = 3.6 km/h = 2.237 mph.
Eff
Useful output divided by total input, as a percentage. 100% is impossible due to losses (heat, friction, resistance).
Hours
Reference formula or conversion factor shown for context.
Results
mechanical power (W)
Sample size or count used in the calculation.
electrical draw (W)
Reference formula or conversion factor shown for context.
angular velocity (rad/s)
Sample size or count used in the calculation.
daily energy (kWh)
Sample size or count used in the calculation.
annual energy (kWh)
The result expressed on a per-year basis.
motor grade
Letter or numerical grade indicating quality, creditworthiness, or performance on a defined scale.