1. Refer to Figure 1. A Y-connected source supplies 3 balanced 3-phase loads. The source has voltage Vab=38020 V. a. Assume that load 1 is A-connected, what are the phase voltages & currents in that load? b. Assume that load 2 is Y-connected what are a the phase voltages & currents in that load? c. What real, reactive and apparent power does the generator supply when the switch is open? d. What are the line currents (laa, Ibb, lcc)? e. What real, reactive and apparent power does Y-Connected 100k Source 0.9 L. 80k 0.8 L Figure 1 the generator supply when the switch is 80k closed? 0.85 L f. What are the line currents when the switch is closed?
1. Refer to Figure 1. A Y-connected source supplies 3 balanced 3-phase loads. The source has voltage Vab=38020 V. a. Assume that load 1 is A-connected, what are the phase voltages & currents in that load? b. Assume that load 2 is Y-connected what are a the phase voltages & currents in that load? c. What real, reactive and apparent power does the generator supply when the switch is open? d. What are the line currents (laa, Ibb, lcc)? e. What real, reactive and apparent power does Y-Connected 100k Source 0.9 L. 80k 0.8 L Figure 1 the generator supply when the switch is 80k closed? 0.85 L f. What are the line currents when the switch is closed?
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
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.33P: Consider the three single-phase two-winding transformers shown in Figure 3.37. The high-voltage...
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![1. Refer to Figure 1. A Y-connected source supplies 3
balanced 3-phase loads. The source has voltage
Vab=38020 V.
a. Assume that load 1 is A-connected, what are
the phase voltages & currents in that load?
b. Assume that load 2 is Y-connected what are
a
the phase voltages & currents in that load?
c. What real, reactive and apparent power does
the generator supply when the switch is
open?
d. What are the line currents (laa, Ibb, lcc)?
e. What real, reactive and apparent power does
the generator supply when the switch is
Y-Connected
b
100kW
Source
0.9 LAG
80KVA
0.8 LAG
Figure 1
80kW
closed?
0.85 LAG
f. What are the line currents when the switch is
closed?
g. Determine the value of each capacitor when
a Y-connected capacitor bank is to be
connected in parallel with the loads to raise
the PF to 0.95.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb3016f48-9d7c-43dc-a969-1e92c2f58e50%2F48b8cd60-9c53-4dcd-9048-89de2585ca18%2F9u06gmv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. Refer to Figure 1. A Y-connected source supplies 3
balanced 3-phase loads. The source has voltage
Vab=38020 V.
a. Assume that load 1 is A-connected, what are
the phase voltages & currents in that load?
b. Assume that load 2 is Y-connected what are
a
the phase voltages & currents in that load?
c. What real, reactive and apparent power does
the generator supply when the switch is
open?
d. What are the line currents (laa, Ibb, lcc)?
e. What real, reactive and apparent power does
the generator supply when the switch is
Y-Connected
b
100kW
Source
0.9 LAG
80KVA
0.8 LAG
Figure 1
80kW
closed?
0.85 LAG
f. What are the line currents when the switch is
closed?
g. Determine the value of each capacitor when
a Y-connected capacitor bank is to be
connected in parallel with the loads to raise
the PF to 0.95.
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