Problem 5: A three phase 6000 V Alternator gave the following open circuit characteristic at normal speed. With the alternatorshort circuited and full load current folwing, the field current is 16 A. Neglecting the armature resistance and usingsynchronous impedance method, Determine the voltage regulation of the alternator supplying the full load of 200 KVA, at 0.8power factor lagging.Field current in amperTerminal Voltage in volt144000185000236000307000438000goooTHENSTERMINAL VOLTS80007000600050002004000k18 22 26 30 34 36 42FIELD AMPERES, IOPEN CIRCUIT CHARACTERSTICS46 50 54

Given data: 3-ϕ , 6000 v alternator If=16 A The open circuit voltage is 4700 v The phase O.C.…

Answered: A three phase 6000 V Alternator gave…

A three phase 6000 V Alternator gave the following open circuit characteristic at normal speed. ted and full load currant foluing

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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Concept explainers

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

Question

Problem 5: A three phase 6000 V Alternator gave the following open circuit characteristic at normal speed. With the alternator
short circuited and full load current folwing, the field current is 16 A. Neglecting the armature resistance and using
synchronous impedance method, Determine the voltage regulation of the alternator supplying the full load of 200 KVA, at 0.8
power factor lagging.
Field current in amper
Terminal Voltage in volt
14
4000
18
5000
23
6000
30
7000
43
8000
gooo
THENS
TERMINAL VOLTS
8000
7000
6000
5000
200
4000k
18 22 26 30 34 36 42
FIELD AMPERES, I
OPEN CIRCUIT CHARACTERSTICS
46 50 54

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