Question 562Electricity/Electronics - Assistant Engineer70% to pass
As shown in figure "B" of the illustration, what statement is true concerning "regenerating" operation? Illustration EL-0162

AI Explanation
The correct answer is A) by applying torque in the opposite direction of rotation direction, the motor briefly regenerates power back into the mains, which rapidly slows down the motor.
This is correct because during regenerative braking, when the motor is driven in the opposite direction of its current rotation, it generates electrical power that is fed back into the main power supply. This regenerative power dissipation in the opposite direction causes the motor to rapidly slow down.
The other options are incorrect because applying torque in the same direction of rotation would accelerate the motor, not slow it down, and regenerating power back into the mains would not speed up the motor.
Related Questions
#560 As shown in the illustration, if the port propulsion motor field excitation circuit experienced a failure, what individual component failure would allow the use of the standby excitation transformer and standby field controller to resume normal operation? Illustration EL-0164 #561 What type of electric propulsion system converter is shown in the illustration? Illustration EL-0155 #563 While standing an "at sea watch" onboard an AC diesel-electric drive ship with a synchronous propulsion motor, you notice that the kwatt load is at roughly 75% of capacity with a leading power factor less than 1. Ideally what would be the character of the power factor associated with the main power distribution including all motors? #564 By what common means is the speed of the AC propulsion motor on a diesel-electric propulsion ship controlled? #565 Referring to the illustration what is the position of the three circuit breakers labeled in figure "A", "B", and "C" respectively? Illustration EL-0033