7. The following table relates to the open-circuit curve of a shunt gen- erator running at 750 rev/min: Generated voltage (V) Field current (A) 172 300 360 385 395 10 0 1 2 3 4 5 Determine the no-load terminal voltage if the field circuit resistance is 125 N. If the speed is now halved, what is the resultant terminal voltage? At the reduced speed, what value of field circuit resistance will give a no-load terminal voltage of 175 V? (NCTE C O2)
7. The following table relates to the open-circuit curve of a shunt gen- erator running at 750 rev/min: Generated voltage (V) Field current (A) 172 300 360 385 395 10 0 1 2 3 4 5 Determine the no-load terminal voltage if the field circuit resistance is 125 N. If the speed is now halved, what is the resultant terminal voltage? At the reduced speed, what value of field circuit resistance will give a no-load terminal voltage of 175 V? (NCTE C O2)
Chapter19: Special-purpose Outlets-water Pump, Water Heater
Section19.1: Water Pump And Branch Circuit
Problem 21R: Fill in the data for a 16-ampere electric motor, single-phase, no Code letters. a. Branch-circuit...
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