Find the Norton equivalent of the network seen by R 2 in Figure P3.53. Use it and current division to compute the current i through R 2 . Assume I 1 = 10 A , I 2 = 2 A , V 1 = V , R 1 = 3 Ω , and R 2 = 4 Ω .
Find the Norton equivalent of the network seen by R 2 in Figure P3.53. Use it and current division to compute the current i through R 2 . Assume I 1 = 10 A , I 2 = 2 A , V 1 = V , R 1 = 3 Ω , and R 2 = 4 Ω .
Solution Summary: The author illustrates the norton equivalent of the network seen by R_2 and the current flowing through the resistance of 4Omega .
Find the Norton equivalent of the network seen by
R
2
in Figure P3.53. Use it and current division to compute the current i through
R
2
. Assume
I
1
=
10
A
,
I
2
=
2
A
,
V
1
=
V
,
R
1
=
3
Ω
, and
R
2
=
4
Ω
.
Problem a. (i) Sketch the ideal power curve of the turbine with the following characteristics:
• rated speed is 14 m/s
⚫rated power is 1.25 MW
⚫ cut-in speed is 5 m/s
⚫furling or cut-out speed is 20 m/s
(ii) Given part (i), calculate the energy produced in one day if the wind blows
continuously between 15 and 20 m/s all day
(iii) Can the energy produced in one year be determined if you are told that the
average wind speed is 14 m/s? Explain why.
Problem b. Suppose an anemometer mounted at a height of 10 m with a 20-m/s average wind
speed
(i) Estimate the average wind power at a height of 10 m, assuming Rayleigh
statistics and under the following weather conditions
• 15°C
(ii) Suppose a 1300-kW wind turbine with 60-m rotor diameter is located in those
winds with speed computed in the first condition of part (i). Determine the annual
energy production with a 30% wind turbine efficiency
(iii) Evaluate the wind turbine capacity factor
Chapter 3 Solutions
Principles and Applications of Electrical Engineering
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