Q2: The O.C.C. of a d.c. generator driven at 800 revimin is as follows : EMF (V) | 220 Field current (A)2 | 310 372 424 | 460 492 520 542 | 3 4 5 6 |8 9 When run as a shunt generator at 400 r.p.m , Find : 1. Voltage to which the machine will excite with shunt field resistance equal to 350. 2. lowest possible speed at which an O.C. voltage of 220 V can be obtained.

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Q2:
The O.C.C. of a d.c. generator driven at 800 revínin is as follows :
|EMF
Field current (A) 2
(V) 220 |310 372 | 424
| 3
14
5
460
492
520
18
9
542
6
When run as a shunt generator at 400 r.p.m , Find :
1. Voltage to which the machine will excite with shunt field resistance equal to 350.
2. lowest possible speed at which an O.C. voltage of 220 V can be obtained.
Transcribed Image Text:Q2: The O.C.C. of a d.c. generator driven at 800 revínin is as follows : |EMF Field current (A) 2 (V) 220 |310 372 | 424 | 3 14 5 460 492 520 18 9 542 6 When run as a shunt generator at 400 r.p.m , Find : 1. Voltage to which the machine will excite with shunt field resistance equal to 350. 2. lowest possible speed at which an O.C. voltage of 220 V can be obtained.
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