1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vadim26 [7]
3 years ago
6

Find the inductive reactance per mile of a single-phase overhead transmission line operating at 60 Hz, given the conductors to b

e Patridge and the spacing between centers to be 20 ft
Engineering
1 answer:
spin [16.1K]3 years ago
6 0

Answer:

The inductive reactance is 0.8281 Ω/mile

Explanation:

Given;

frequency, f = 60 Hz

space between the center, GMD = 20 ft

The inductive reactance per mile is calculated as;

X_L =X_a + X_d\\\\X_L = 2.022*10^{-3} *f *ln\frac{1}{GMR} + 2.022*10^{-3} *f *ln\ GMD

Where;

GMR is geometric mean radius (obtained from manufacturer's table)

GMD is geometric mean distance

For Partridge conductor, GMR = 0.0217 ft;

Xa = 2.022 x 10⁻³ x 60 x ln (1 / 0.0217)

Xa = 0.4647 Ω/mile

X_d = 2.022 x 10⁻³ x f x ln GMD

X_d = 2.022 x 10⁻³ x 60 x ln(20)

X_d = 0.3634 Ω/mile

Inductive reactance;

X_L = X_a + X_d\\\\X_L = 0.4647 \ ohms/mile \ +  0.3634 \ ohms/mile\\\\X_L = 0.8281 \ ohms/mile

Therefore, the inductive reactance is 0.8281 Ω/mile

You might be interested in
A fire hose nozzle has a diameter of 1.125 in. According to some fire codes, the nozzle must be capable of delivering at least 2
Furkat [3]

Answer:

P_{1} = 403,708\,kPa\,(58.553\,psi)

Explanation:

Let assume that changes in gravitational potential energy can be neglected. The fire hose nozzle is modelled by the Bernoulli's Principle:

\frac{P_{1}}{\rho\cdot g} = \frac{P_{2}}{\rho \cdot g} + \frac{v^{2}}{2\cdot g}

The initial pressure is:

P_{1} = P_{2}+ \frac{1}{2}\cdot \rho v^{2}

The speed at outlet is:

v=\frac{\dot Q}{\frac{\pi}{4}\cdot D^{2}}

v=\frac{(250\,\frac{gal}{min} )\cdot (\frac{3.785\times 10^{-3}\,m^{3}}{1\,gal} )\cdot(\frac{1\,min}{60\,s} )}{\frac{\pi}{4}\cdot [(1.125\,in)\cdot(\frac{0.0254\,m}{1\,in} )]^{2} }

v\approx 24.592\,\frac{m}{s}\,(80.682\,\frac{ft}{s} )

The initial pressure is:

P_{1} = 101.325\times 10^{3}\,Pa+\frac{1}{2}\cdot (1000\,\frac{kg}{m^{3}} )\cdot (24.592\,\frac{m}{s} )^{2}

P_{1} = 403,708\,kPa\,(58.553\,psi)

7 0
3 years ago
Read 2 more answers
What is the number model for three families live in the same apartment
Gnesinka [82]
Three families live in the same apartment building. They decided to share a giant 220-ounce container.
3 0
2 years ago
Read 2 more answers
Pls paki answers naman Ito pls sa inyo​
netineya [11]

:nanjan lang din yan sa binasa mo ne........

7 0
2 years ago
Air at 25ºC flows in an electric hair drier with a velocity of 6 m/s perpendicular to a Nichrome heating element. The heating el
Hunter-Best [27]

Answer:

Check the explanation

Explanation:

Electrical current can be measured according to the rate of electric charge flow in any electrical circuit:

i(t) = dQ(t) / dt

the derivative of the electric charge by time determines the momentary current.

i(t) will be the momentary current I at time t in amps (A).

Q(t) will also be the momentary electric charge in coulombs (C).

t is the time in seconds (s).

so if the current is constant:

I = ΔQ / Δt

I will be the current in amps (A).

ΔQ will be the electric charge in coulombs (C), which is expected to flows at time duration of Δt.

Δt is the time duration in seconds (s).

Kindly check the attached image below to get the step by step explanation to the question above.

3 0
3 years ago
What is the worst way to show self-management? a. Plan a time to evaluate your progress b. Set your own career goals c. Ask your
Arisa [49]
Answer:
Ask your boss to set all your goals

Explanation:
Asking your boss to set your goals means that you don’t participate in any of the goal setting process and your boss is doing all of it, showing no self management skills.
3 0
3 years ago
Other questions:
  • What will happen in a wire drawing operation when the cross-sectional area has a reduction of 60% in a single pass?
    10·1 answer
  • A section of a two-lane highway has 12-ft lanes and a design speed of 75 mi/h. The section contains a vertical curve and a horiz
    9·1 answer
  • How fast is a 2012 nissan sentra<br>speed and acceleration ​
    15·1 answer
  • A series R-L circuit is given. Circuit is connected to an AC voltage generator. a) Derive equations for magnitude and phase of c
    13·1 answer
  • What are the two safety precautions taken before driving a car​
    12·1 answer
  • The spring has a stiffness k = 200 N&gt;m and an unstretched length of 0.5 m. If it is attached to the 3-kg smooth collar and th
    12·1 answer
  • The maximum stress that a bar will withstand before failing is called • Rapture Strength • Yield Strength • Tensile Strength • B
    5·1 answer
  • A light bar AD is suspended from a cable BE and supports a 20-kg block at C. The ends A and D of the bar are in contact with fri
    13·1 answer
  • How can we love our country? Not by words but by deeds. - Jose P. Laurel
    7·1 answer
  • All of these are true about a magnesium part EXCEPT that it:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!