QUESTION I A 10-MVA three-phase Y-connected 13,800 V two-pole 60 Hz turbogenerator has an armature resistance of 0.06 2 per phase and a synchronous reactance of 1.82 per phase. Find the excitation voltage at no load, half load, and full load for power factors of (a) (b) (c) with rated terminal voltage. 0.8 leading, unity, and 0.8 lagging QUESTION IL
QUESTION I A 10-MVA three-phase Y-connected 13,800 V two-pole 60 Hz turbogenerator has an armature resistance of 0.06 2 per phase and a synchronous reactance of 1.82 per phase. Find the excitation voltage at no load, half load, and full load for power factors of (a) (b) (c) with rated terminal voltage. 0.8 leading, unity, and 0.8 lagging QUESTION IL
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter7: Symmetrical Faults
Section: Chapter Questions
Problem 7.3MCQ: The amplitude of the sinusoidal symmetrical ac component of the three-phase short-circuit current of...
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please I don't understand the solution can you please resolve question 1 with more explanation and different writing please
![QUESTION I
A 10-MVA three-phase Y-connected 13,800 V two-pole 60 Hz
turbogenerator has an armature resistance of 0.062 per phase and a
synchronous reactance of 1.8 2 per phase. Find the excitation voltage at
no load, half load, and full load for power factors of
(a)
0.8 leading,
(b)
unity, and
(c) 0.8 lagging
with rated terminal voltage.
QUESTION IL
The rotational losses for a 1000 hp synchronous motor are found to be 18
kW. The motor operates from a 2300 V three-phase supply. The machine's
synchronous reactance is 1.9 2 and that the armature resistance is
negligible.
Establish the following points (1l and E) on the V curve corresponding to
full-load power output:
1. Stability limit, 8 = -90°.
2. Power factor of 0.8 lagging.
3. Unity power factor.
4. Power factor of 0.8 leading.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F89e1a31e-5f91-4568-a673-adaacaa6a736%2Fa096c574-36e4-4a60-bed1-0c3e1a61084b%2F61m3ug_processed.jpeg&w=3840&q=75)
Transcribed Image Text:QUESTION I
A 10-MVA three-phase Y-connected 13,800 V two-pole 60 Hz
turbogenerator has an armature resistance of 0.062 per phase and a
synchronous reactance of 1.8 2 per phase. Find the excitation voltage at
no load, half load, and full load for power factors of
(a)
0.8 leading,
(b)
unity, and
(c) 0.8 lagging
with rated terminal voltage.
QUESTION IL
The rotational losses for a 1000 hp synchronous motor are found to be 18
kW. The motor operates from a 2300 V three-phase supply. The machine's
synchronous reactance is 1.9 2 and that the armature resistance is
negligible.
Establish the following points (1l and E) on the V curve corresponding to
full-load power output:
1. Stability limit, 8 = -90°.
2. Power factor of 0.8 lagging.
3. Unity power factor.
4. Power factor of 0.8 leading.
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