Problem: a. 30 500 KVA, diesel-engine generator, 50HZ its mechanical angle 60° coil pitch angle =140• and its slot angle half the value of shorted pitch angle. Calculate Kd, Kp? b. Related to branch (a) the alternator star connected has 180 turns per phase used brushless excitation system as shown in fig. below with flux range from 0.0223 to 0.0543 web after increase in feeding residential load. Calculate generated voltage? R L1 L2 L3 F2 AVR F1

Problem: a. 30 500 KVA, diesel-engine generator, 50HZ its mechanical angle 60° coil pitch angle =140• and its slot angle half the value of shorted pitch angle. Calculate Kd, Kp? b. Related to branch (a) the alternator star connected has 180 turns per phase used brushless excitation system as shown in fig. below with flux range from 0.0223 to 0.0543 web after increase in feeding residential load. Calculate generated voltage? R L1 L2 L3 F2 AVR F1

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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Subject name: Power System Protection
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An 11 kV, three-phase, star-connected alternator has a synchronous impedance of10∟80° Ω/phase and operates at unity power factor on infinite bus bars. It supplies acurrent of 300 A by using a general load diagram. Determine: the full-load current for normal excitation ( motor mode), the current and power factor for 100% excitation on 25% overload (generatormode), the maximum power that the machine can develop in the generator mode for50% excitation
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