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Social Studies, 21.05.2020 17:57 shartman22

1. The OC curve of a d. c. shunt generator for a speed of 1000 r. p.m. is given by the following table.
Field current: 2 3 4 5 6 7

E. M.E volts:102 150 188 215 232 245
The shunt has a resistance of 37 12. Find the speed at which excitation may be expected to build up.
The aramture resistance of 0.04 12. Neglecting the effects of brush drop and armature reaction, estimate
the p. d. when the speed is 1000 r. p.m. and the armature delivers a current of 100 A. (725 r. p.m., 231 V)
the followig C. C.

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