A bipolar BLDC motor with k? = 1.0 Vs is running at 500 rpm when the modulation factor is 80% and the load torque is 30 Nm. The voltage of the dc source is 200 V, and the armature resistance of the motor is 1.0 ?. Compute the dynamic braking resistance that would limit the braking current to 160% of the pre-braking condition. If the torque is unidirectional, compute the steady-state speed of the motor.
What will be an ideal response?
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Fill in the blank(s) with the appropriate word(s).
Circular mil sizing runs from 250 MCM (1/2-inch diameter) to ____________________ MCM (1-inch diameter).
Fill in the blank(s) with the appropriate word(s).
The term ____________________ refers to an animal born in a very immature development state, such as a cat with limited senses and ability to move independently
Fill in the blank(s) with correct word
How does increased store humidity affect the operation of the refrigerated cases?
A) Operation of the refrigerated cases is unaffected by humidity since they are only providing sensible cooling. B) Refrigeration capacity is unaffected, but the food hydration cycles are decreased. C) Operating time is decreased and efficiency increased because of the natural cooling effect of the moist air. D) Operating time increases and efficiency decreases due to increased coil frosting.