7. The following table relates to the open-circuit curve of a shunt erator running at 750 rev/min: Generated voltage (V) Field current (A) 172 300 360 385 395 4 5 10 0 1 2 3 Determine the no-load terminal voltage if the field circuit resistance If the speed is now halved, what is the resultant terminal voltage? is 125 Q. At the reduced speed, what valus of field circuit resistance will give a no-load terminal voltage of 175 V? (N.C.T.E.C., 0.2)
7. The following table relates to the open-circuit curve of a shunt erator running at 750 rev/min: Generated voltage (V) Field current (A) 172 300 360 385 395 4 5 10 0 1 2 3 Determine the no-load terminal voltage if the field circuit resistance If the speed is now halved, what is the resultant terminal voltage? is 125 Q. At the reduced speed, what valus of field circuit resistance will give a no-load terminal voltage of 175 V? (N.C.T.E.C., 0.2)
Chapter29: Service-entrance Calculations
Section: Chapter Questions
Problem 3R: a. What is the ampere rating of the circuits that are provided for the small-appliance loads? _____...
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