QUESTIONS AND PROBLEMS 1. A three-phase transmission line has a react- ance of 100 ohms and at different times through- out the day it is found that the sender and receiver voltages have magnitude and phase angles as given in Table 6-4. Es (kV) 100 120 100 120 120 ER (kV) 100 100 120 100 100 PHASE ANGLE 60° Es leads ER 60° Es leads ER 60° Es leads ER 30° Es lags ER 0° In each case calculate the real and reactive power of the sender and receiver and indicate the direction of the power flow. The voltages given are line-to-line. MW SENDER Mvar RECEIVER MW Mvar

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QUESTIONS AND PROBLEMS
1. A three-phase transmission line has a react-
ance of 100 ohms and at different times through-
out the day it is found that the sender and receiver
voltages have magnitude and phase angles as given
in Table 6-4.
Es
(kV)
100
120
100
120
120
ER
(kV)
100
100
120
100
100
PHASE ANGLE
60° Es leads ER
60° Es leads ER
60° Es leads ER
30° Es lags ER
0°
In each case calculate the real and reactive
power of the sender and receiver and indicate the
direction of the power flow. The voltages given are
line-to-line.
MW
SENDER
Mvar
RECEIVER
MW
Mvar
Transcribed Image Text:QUESTIONS AND PROBLEMS 1. A three-phase transmission line has a react- ance of 100 ohms and at different times through- out the day it is found that the sender and receiver voltages have magnitude and phase angles as given in Table 6-4. Es (kV) 100 120 100 120 120 ER (kV) 100 100 120 100 100 PHASE ANGLE 60° Es leads ER 60° Es leads ER 60° Es leads ER 30° Es lags ER 0° In each case calculate the real and reactive power of the sender and receiver and indicate the direction of the power flow. The voltages given are line-to-line. MW SENDER Mvar RECEIVER MW Mvar
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