b) indicate with a cross where the power limit and the MVA limit coincide; then by construction lines or otherwise calculate i) the power factor ii) the load angle iii) the MVAr output c) Where do the maximum heating for the rotor and stator coincide? Determine i) the p.u. excitation ii) the MVA output.
b) indicate with a cross where the power limit and the MVA limit coincide; then by construction lines or otherwise calculate i) the power factor ii) the load angle iii) the MVAr output c) Where do the maximum heating for the rotor and stator coincide? Determine i) the p.u. excitation ii) the MVA output.
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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Kindly solve all the parts.
The graph is given in the question.
Solve using the graph. I will definitely upvote.
Transcribed Image Text:1 This question is about generator capability charts.
the
operating chart reproduced here from FIGURE 15
The values are in per unit with a 600MVA base.
a) , determine the following performance limitations for a generator:
i) maximum real power
ii) maximum reactive power
(a)lagging
(b)leading
b) indicate with a cross where the power limit and the MVA limit
coincide; then by construction lines or otherwise calculate
i) the power factor
ii) the load angle
iii) the MVAR output
c) Where do the maximum heating for the rotor and stator coincide?
Determine
i) the p.u. excitation
ii) the MVA output.
Transcribed Image Text:Reactive power
Q lead p.u.
Turbine
Limit
:0.8
0.6
Theoretical Stability Limit
0.4
Practical Stability
Limit
02
:0.83
Real power Pp.u.
0.2
0.4
0.6
0.8
1.0
0.2
04
Excitation
Limit
0.6
08
1.0
Stator Heating
Limit
figure 15
Q lag p.u.
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