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Answer Posted / debaroon ray
Relay is a protective device that detects the fault and
initiate the operation of circuit breaker to isolate the
defective circuit from the rest of the system.
| Is This Answer Correct ? | 5 Yes | 4 No |
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I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.
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