Data for points from 45 to 49 is given as: The OCC of a de shunt generator driven at 600 rpm is given as follows Field current, A 0.5 1 2 3 4 5 Open-circuit terminal voltage, V 75 225 330 390 410 425 The emf to which the generator will excite when the field circuit resistance is 100N is equal to a 400 V. 6 415 V. 430 V. d 450 V.

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(46) The additional resistance required in the field circuit to reduce the emf to 350 V is equal to ..
a 20.3N.
.....
6 30.8N.
© 53.4N.
d 66.7N.
(47) The critical field resistance for 600 rpm is equal to ..
a 1502.
6 2002.
300Ω.
d 4002.
(48) The critical speed at 1002 field circuit resistance is equal to ..
@ 200грm.
Б 300 грm.
400 rpm.
@ 500 грm.
(49) The lowest speed with 10ON field circuit resistance in order to obtain emf of 300 V is equal to
a 280.7 rpm.
ъ 303.6 гpm.
© 467.5 rpm.
@ 534.3 грm.
Transcribed Image Text:(46) The additional resistance required in the field circuit to reduce the emf to 350 V is equal to .. a 20.3N. ..... 6 30.8N. © 53.4N. d 66.7N. (47) The critical field resistance for 600 rpm is equal to .. a 1502. 6 2002. 300Ω. d 4002. (48) The critical speed at 1002 field circuit resistance is equal to .. @ 200грm. Б 300 грm. 400 rpm. @ 500 грm. (49) The lowest speed with 10ON field circuit resistance in order to obtain emf of 300 V is equal to a 280.7 rpm. ъ 303.6 гpm. © 467.5 rpm. @ 534.3 грm.
Data for points from 45 to 49 is given as:
The OCC of a de shunt generator driven at 600 rpm is given as follows
Field current, A
0.5
1
2
3
4
Open-circuit terminal voltage, V
75
225
330
390
410
425
(45) The emf to which the generator will excite when the field circuit resistance is 1002 is equal to ...
a 400 V.
6 415 V.
© 430 V.
(d) 450 V.
Transcribed Image Text:Data for points from 45 to 49 is given as: The OCC of a de shunt generator driven at 600 rpm is given as follows Field current, A 0.5 1 2 3 4 Open-circuit terminal voltage, V 75 225 330 390 410 425 (45) The emf to which the generator will excite when the field circuit resistance is 1002 is equal to ... a 400 V. 6 415 V. © 430 V. (d) 450 V.
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