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1. A 400-µF capacitor is connected to the terminal of a single-phase induction generator. The induction generator feeds a load through a single-phase transformer. The load voltage is 1,200 V (rms). Calculate the generator active power, if the power factor is 0.85 and the generator MVA rating is 3 times the capacitor's MVAR rating. Consider the system frequency is 60 Hz, and the load side winding turns is 2 times the generator side winding turns of the transformer.

1. A 400-µF capacitor is connected to the terminal of a single-phase induction generator. The induction generator feeds a load through a single-phase transformer. The load voltage is 1,200 V (rms). Calculate the generator active power, if the power factor is 0.85 and the generator MVA rating is 3 times the capacitor's MVAR rating. Consider the system frequency is 60 Hz, and the load side winding turns is 2 times the generator side winding turns of the transformer.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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A 400-µF capacitor is connected to the terminal of a single-phase induction generator. The induction generator feeds a load through a single-phase transformer. The load voltage is 1,200 V (rms). Calculate the generator active power, if the power factor is 0.85 and the generator MVA rating is 3 times the capacitor's MVAR rating. Consider the system frequency is 60 Hz, and the load side winding turns is 2 times the generator side winding turns of the 1. transformer. 2. The field coil of one of 2 poles of a DC generator has 50 turns and an inductance of 0.2H. How much current will flow through the field coil in order to produce 2,000 V, while the generator has a shaft speed of 750 rpm, 80 conductors in the armature windings, and the number of the parallel paths is the same as the pole numbers? 3. The shaft of a single-phase 3 hp, 15 Nm, 60 Hz induction motor is coupled to a DC generator that requires an excitation current of 5 amp to produce 750 V. If the flux per pole is proportional to the excitation current, calculate the number of conductors in the armature windings of the DC generator. Assume the number of poles is twice the number of parallel paths in the generator.
Transcribed Image Text:A 400-µF capacitor is connected to the terminal of a single-phase induction generator. The induction generator feeds a load through a single-phase transformer. The load voltage is 1,200 V (rms). Calculate the generator active power, if the power factor is 0.85 and the generator MVA rating is 3 times the capacitor's MVAR rating. Consider the system frequency is 60 Hz, and the load side winding turns is 2 times the generator side winding turns of the 1. transformer. 2. The field coil of one of 2 poles of a DC generator has 50 turns and an inductance of 0.2H. How much current will flow through the field coil in order to produce 2,000 V, while the generator has a shaft speed of 750 rpm, 80 conductors in the armature windings, and the number of the parallel paths is the same as the pole numbers? 3. The shaft of a single-phase 3 hp, 15 Nm, 60 Hz induction motor is coupled to a DC generator that requires an excitation current of 5 amp to produce 750 V. If the flux per pole is proportional to the excitation current, calculate the number of conductors in the armature windings of the DC generator. Assume the number of poles is twice the number of parallel paths in the generator.
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