DELMAR'S STANDARD TEXT OF ELECTRICITY
6th Edition
ISBN: 9780357323380
Author: Herman
Publisher: CENGAGE C
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Chapter 26, Problem 4RQ
To determine
The resonant frequency of the series LC connection.
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3-4 Transmissiva Live of 120km has
R= 0.2
~2/15
X= 0.8 -2/km
Y = 15H/6 5/km
The line is supplies a load of 45 kV, SOMW, 0.8 lead p.f
find sending voltage,
Sending Current
p.f. Sanding
Voltage Regulation
⑨Voltage
5
Ⓒ charching coming!
изу
usy π cct
ले
A (medium) single phase transmission line 100 km long has the following
constants :
Resistance/km = 0.25 Q;
Susceptance/km = 14 × 10° siemen ;
Reactance/km = 0.8
Receiving end line voltage = 66,000 V
Assuming that the total capacitance of the line is localised at the receiving end alone, determine
(i) the sending end current (ii) the sending end voltage (iii) regulation and (iv) supply power factor.
The line is delivering 15,000 kW at 0.8 power factor Lead Draw the phasor diagram to illustrate
your calculations.
1.
An electromagnetic device is shown below. The coil in the left side is connected to
a steady AC power source. The left coil generates a changing magnetic flux, which is =
1.5cos(120πt +л/6) T. Calculate the voltage vs generated across the right coil given the
number of turns of the right coil is 5 (You only need to calculate the magnitude).
Vp
Chapter 26 Solutions
DELMAR'S STANDARD TEXT OF ELECTRICITY
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