Which one of the following describes the motor current indications that would be observed during the start of a large motor-driven radial-flow centrifugal pump with a closed discharge valve?
A. Current immediately increases to the full-load value and then gradually decreases to the no-load value over several minutes.
B. Current immediately increases to the no-load value and then stabilizes.
C. Current immediately increases to many times the no-load value and then rapidly decreases to the no-load value after several seconds.
D. Current immediately increases to many times the no-load value and then gradually decreases to the no-load value after several minutes.
Show Answer
Answer: C
Share your understanding of this question with the correct explanation.