Duty cycle and heating

Build a load cycle, watch the winding warm up, compare T_rms and the peak.

Try it: duty cycle and motor heating

Step 1 torque80 N·m

Step 1 duration10 s

Step 2 torque0 N·m

Step 2 duration15 s

Motor rated torque50 N·m

Try the motor whose rated torque equals T_rms, then one size smaller.

The motor overheats: its rated torque is below T_rms. Pick a bigger motor.

T_rms = √( Σ Tᵢ² tᵢ / Σ tᵢ )