Consider an ideal transformer with N 1 = 3000 and N 2 = 1000 turns. Let winding 1 be connected to a source whose voltage is e 1 ( t ) = 100 ( 1 − | t | ) volts for − 1 ≤ t ≤ 1 and e 1 ( t ) = 0 for | t | > 1 second. A 2- farad capacitor is connected across winding 2. Sketch e 1 ( t ) , e 2 ( t ) , i 1 ( t ) , and i 2 ( t ) versus time t .
Consider an ideal transformer with N 1 = 3000 and N 2 = 1000 turns. Let winding 1 be connected to a source whose voltage is e 1 ( t ) = 100 ( 1 − | t | ) volts for − 1 ≤ t ≤ 1 and e 1 ( t ) = 0 for | t | > 1 second. A 2- farad capacitor is connected across winding 2. Sketch e 1 ( t ) , e 2 ( t ) , i 1 ( t ) , and i 2 ( t ) versus time t .
Solution Summary: The author illustrates the plot of ln_1(t)=100(1-t) V
Consider an ideal transformer with
N
1
=
3000
and
N
2
=
1000
turns. Let winding 1 be connected to a source whose voltage is
e
1
(
t
)
=
100
(
1
−
|
t
|
)
volts
for
−
1
≤
t
≤
1
and
e
1
(
t
)
=
0
for
|
t
|
>
1
second.
A 2-
farad capacitor is connected across winding 2. Sketch
e
1
(
t
)
,
e
2
(
t
)
,
i
1
(
t
)
,
and
i
2
(
t
)
versus time t.
A 60 Hz, 230 kV, 275 km long, uncompensated three-phase transmission line consists of three
conductors bundled by phase, such that each conductor in the line is of the ACSR Falcon type.
The
separation between each bundled conductor is d = 45 cm and the separation between each
phase of the line is 2.4 m.
Calculate:
"The parameters R, L, C of the line in Q2/km; µH/m and nF/m. And the total values of ZL and YC
in Q and S, respectively, and in polar coordinates."
Generalized constants A, B, C and D of the line, according to the type of transmission line.
Present the results in rectangular coordinates.
If a three-phase wye load draws 3/4 of the nominal current of the 300 MW system with FP =
0.85 lagging and at 230 kV, calculate:
(a) Current at the load in KA
(b) Voltage at the source in KV,
(c) Current at the source in kA and
(d) power at the source in MVA.
Obtain the results per phase.
Transmission line voltage regulation percentage
Determine the required EMT size for the following combination of conductors:18. Four 8 AWG Type THW and four 12 AWG Type THW:19. Three 350 kcmil and one 250 kcmil Type XHHW conductors and a 4 AWG bare conductor:20. In a nonmetallic-sheathed (Type NM) cable installation, a 10⁄3 with equipmentgrounding conductor is installed in a metal octagonal box to supply two 12⁄2 withequipment grounding conductor branch-circuit cables. What is the minimum sizebox? The box contains internal cable clamps
Chapter 3 Solutions
MindTap Engineering for Glover/Overbye/Sarma's Power System Analysis and Design, 6th Edition, [Instant Access], 1 term (6 months)
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How does a Transformer work - Working Principle electrical engineering; Author: The Engineering Mindset;https://www.youtube.com/watch?v=UchitHGF4n8;License: Standard Youtube License