QI) The induced voltage of a shunt generator is 254 V. When the machine is loaded, the terminal voltage drops down to 240 V. Determine the load current, and load power if the amature resistance is 0.04 0, and the field circuit resistance is 24 Q You may neglect armature reaction effect. [Ans., IL=340 A, PL=81.6 KW]

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Q1) The induced voltage of a shunt generator is 254 V. When the machine is loaded, the terminal
voltage drops down to 240 V. Determine the load current, and load power if the armature
resistance is 0.04 Q, and the field circuit resistance is 24 Q. You may neglect armature reaction
effect.
[Ans., I=340 A, PL=81.6 KW]
Q2) A shunt DC generator whose external characteristic is given by the equation:
V.
250 - 0.5 1.
a) Fill the table below,
30
I (A)
VL(V)
5
10
15
20
25
b) Based on the table above (part a), plot the extemal characteristics (V1/IL).
c) If the generator supplies a load that consumes power of 5 KW, using the extemal
characteristics you found in part (b) above, find the load resistance.
[Ans., R1=11.48 oj
Note: You must use a graph paper.
Transcribed Image Text:Q1) The induced voltage of a shunt generator is 254 V. When the machine is loaded, the terminal voltage drops down to 240 V. Determine the load current, and load power if the armature resistance is 0.04 Q, and the field circuit resistance is 24 Q. You may neglect armature reaction effect. [Ans., I=340 A, PL=81.6 KW] Q2) A shunt DC generator whose external characteristic is given by the equation: V. 250 - 0.5 1. a) Fill the table below, 30 I (A) VL(V) 5 10 15 20 25 b) Based on the table above (part a), plot the extemal characteristics (V1/IL). c) If the generator supplies a load that consumes power of 5 KW, using the extemal characteristics you found in part (b) above, find the load resistance. [Ans., R1=11.48 oj Note: You must use a graph paper.
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