The following figures were obtained from an open circuit test on a shunt generator driven at 1000 r.p.m. Field current(A) O.C. voltage (v) If the field resistance is 702, armature resistance is 0.022 and the machine is run at 1100 r.p.m 1 1.5 2 2.5 3 104 119 130 138 145 calculate: 1311- The induced voltage at no-load 2- The additional resistance when the induced voltage is 130V. 11093- When the field resistance is 702 calculate the speed when the induced voltage is 135V. 4- The load current when the terminal voltage is 130V. IL =191185

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The following figures were obtained from an open circuit test on a shunt generator driven at
1000 r.p.m.
Field current(A)
O.C. voltage (v)
If the field resistance is 70S2, armature resistance is 0.020 and the machine is run at 1100 r.p.m
calculate:
1
1.5
2.5
3
104
119
130
138
145
1311- The induced voltage at no-load
2- The additional resistance when the induced voltage is 130V.
1093- When the field resistance is 702 calculaie the speed when the induced voltage is 135V.
4- The load current when the terminal voltage is 130V. IL=19118S
%3D
Transcribed Image Text:The following figures were obtained from an open circuit test on a shunt generator driven at 1000 r.p.m. Field current(A) O.C. voltage (v) If the field resistance is 70S2, armature resistance is 0.020 and the machine is run at 1100 r.p.m calculate: 1 1.5 2.5 3 104 119 130 138 145 1311- The induced voltage at no-load 2- The additional resistance when the induced voltage is 130V. 1093- When the field resistance is 702 calculaie the speed when the induced voltage is 135V. 4- The load current when the terminal voltage is 130V. IL=19118S %3D
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