What defines an �open drip proof� motor? What defines a �splash proof� motor? A 3 phase, 10HP motor has a rated voltage of 230V/460V and a rated current of 24A /12A.

  1. What defines an �open drip proof� motor?
  2. What defines a �splash proof� motor?
  3. A 3 phase, 10HP motor has a rated voltage of 230V/460V and a rated current of 24A /12A.

a. If the motor is fully loaded at 10HP, find the torque output in ft-lbs and the power factor if the efficiency is 91.7%.

b. Would the power factor be greater or less if the motor delivered � rated output power? Why?

C. If the motor has a locked rotor code letter of �H�, what will the inrush current be at full load if supplied by 230V, 3-phase?

d. If the motor has a Service Factor of 1.15, what does that mean in regards to its operation?

e. If the Design Code is �B�, what does that mean in regards to its operation?

f. If the frame size is 215T, what is the diameter of the shaft?

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