The one-line diagram of a three-phase system is shown in Figure 1. By selecting a common based of 100 MVA and 32.75 kV on the generator bus, Motor 90 MVA 90 MVA 33/275 kV Xrp12% 55 MVA 10.95 kv 275/11kV Xry=12% Generator 95 MVA (G 32.75 kV 2x OH Line 138 km Load R=0.01 ohm/km 35 MVA X = 0 05 chm/km 10.95 kV 0.88 pf lagging Figure 1 (b) If the motor operates at full load 0.9 power factor lagging at a terminal voltage 10.95 kV, determine the voltage at the generator bus bar. Please enter your answer in the blank's: Voltage at load bus, VLoad= Motor apparent power, SM= Current drawn by the motor, Im= Current drawn by the load, ILoad= Total current drawn by load bus, IT= Equivalent series impedance, ZT = Voltage at generator busbar V, =

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
Chapter6: Power Flows
Section: Chapter Questions
Problem 6.61P
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The one-line diagram of a three-phase system is shown in Figure 1. By selecting a common based of 100 MVA and 32.75 kV
on the generator bus,
Motor
90 MVA
90 MVA
55 MVA
33/275 kV
275/11kV
10.95 kV
XyF15%
Xr=12%
Xrp=12%
Generator
95 MVA
32.75 kv
Xg-15%
2x OH Line 138 km
Load
R=0.01 ohmkm
35 MVA
X = 0 05 chm/km
10.95 kV
0.88 pf lagging
Figure 1
(b) If the motor operates at full load 0.9 power factor lagging at a terminal voltage 10.95 kV, determine
the voltage at the generator bus bar.
Please enter your answer in the blank's:
Voltage at load bus, VLoad=
Motor apparent power, SM=
Current drawn by the motor, IM=
Current drawn by the load, ILoad=
Total current drawn by load bus, IT=
Equivalent series impedance, ZT =
Voltage at generator busbar V1 =
Voltage at generator busbar V1 =
Transcribed Image Text:The one-line diagram of a three-phase system is shown in Figure 1. By selecting a common based of 100 MVA and 32.75 kV on the generator bus, Motor 90 MVA 90 MVA 55 MVA 33/275 kV 275/11kV 10.95 kV XyF15% Xr=12% Xrp=12% Generator 95 MVA 32.75 kv Xg-15% 2x OH Line 138 km Load R=0.01 ohmkm 35 MVA X = 0 05 chm/km 10.95 kV 0.88 pf lagging Figure 1 (b) If the motor operates at full load 0.9 power factor lagging at a terminal voltage 10.95 kV, determine the voltage at the generator bus bar. Please enter your answer in the blank's: Voltage at load bus, VLoad= Motor apparent power, SM= Current drawn by the motor, IM= Current drawn by the load, ILoad= Total current drawn by load bus, IT= Equivalent series impedance, ZT = Voltage at generator busbar V1 = Voltage at generator busbar V1 =
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