2.f1 and f2 generator terminal are flux has tion, the same Ifthe field circuit i
ID: 3348876 • Letter: 2
Question
2.f1 and f2 generator terminal areflux has tion, the same Ifthe field circuit is closel reverses and the brush polarity revl SUMMARY a magnetic fiel Separately excited generators use a separate DC voltage to co creased. By ntro Generation of DC voltage depends on three factors: a magnetic fe By increasing the field current, field flux can be in current through the coils, the magne cont tic polarity is established. Output voltage level is controlled by the speed of the rotat the magnetic field. The polarity of the output voltage is controlle of the armature and the direction of the magnetic field. ACHIEVEMENT REVIEVw A. Select the correct answer for each of the following statem ing letter in the space provided. 1. A separately excited DC generator has the field connecte a. across the armature. b. in series with the armature. to an external circuit. d. none of the above F, and F, generator terminals are a. shunt field leads. b. series field leads. 2.
Explanation / Answer
A 'Separately excited DC Generator' name itself indicates that filed is excited separately. Hence the field is connected to an external circuit. ( Option c).
F1 and F2 are generally shunt field leads. ( option a)
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