Q1/ A three phase, 600kVA, 3.3kV star connected S.G having Reff=0.4102/phase. Find the synchronous reactance of generator if the full loadof unity power factor is suddenly removed causing the terminal voltage tobe increased by 5%.Q2/a 20MVA, 12.2KV, 0.8 PF lagging Y- connected SG has a negligiblearmature resistance and syn. Reactance of 8.20, the generator is connectedin parallel with a 60Hz 12.2Kv infinite bus that is capable of supplying anyreal or reactive power with no change in frequency or terminal voltage. A)find the internal generated voltage at rated condition. B) what is thearmature rated current. C) suppose that the generator is initially operatingat rated condition. If the internal generated voltage is decreased by 5%,what is will be the new armature current?Q3/ Two 300kVA, 1000V, 50Hz alternators operating in parallel to supplya load of 500KW at UPF. 60% of the load is supplied by the first generator.If the terminal voltage and power supplied are kept constant always, thenchanging the excitation to make pf=0.8 lagging. Find the generatorcurrents, power factors and total load current. (the generator and load aresingle phase)

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Q1/ A three phase, 600kVA, 3.3kV star connected S.G having Reff= 0.4102/phase. Find the synchronous reactance of generator if the full load of unity power factor is suddenly removed causing the terminal voltage to be increased by 5%.

Q1/ A three phase, 600kVA, 3.3kV star connected S.G having Reff= 0.4102/phase. Find the synchronous reactance of generator if the full load of unity power factor is suddenly removed causing the terminal voltage to be increased by 5%.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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