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A three-phase overhead transmission line is designed to deliver 190.5 M VA at 220 kV over a distance of 63 km, such that the total transmission line loss is not to exceed
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Chapter 4 Solutions
MindTap Engineering for Glover/Overbye/Sarma's Power System Analysis and Design, 6th Edition, [Instant Access], 1 term (6 months)
- Determine the amount of current (mA) flowing in the circuit if the charge seen at any cross-sectional area of the copper wire is 0.0052 in 30ms what is the resistance R(Ω) given the applied voltage and calculated current flowing in the circuit v=12v I=? R=?arrow_forwardA 140-J of work is done on a gaseous refrigerant as it undergoes compression. What is the total amount of energy transferred by heat if there is an increase of 120 J in the internal energy of the system?arrow_forwardWhen a tension force of 900 N is applied to a steel wire, it is assumed that E = 210 GPa and that the diameter of the wire increases by 1.05 mm. Calculate the diameter of the wire.arrow_forward
- The displacement of an oscillating spring can be described by x = A cos(wt) where x = displacement at time t, A = maximum displacement, w = angular frequency, which depends on the spring constant and the mass attached to the spring, and t = time. Find the displacement, x, with maximum displacement A of 4 cm, for times from 0 to 120 seconds with increments of 30 seconds, and angular frequencies from 0.4 to 0.6 radians/sec, with increments of 0.1 radians/sec. The displacement for all combinations of times and angular frequencies needs to be calculated. Use meshgrid. Display your results in a matrix with angular frequencies along the top row and times along the left column like so (you may put zero, 0, or NaN, in the upper left corner:arrow_forwardwhere is it demonstrated that the Hamiltonian circuit's tour length is, at most, 4/3 times that of the ideal TSP trip.arrow_forwardWhen the electromotive force is removed from a circuit Containing inductance and resistance but no capacitors, the rate of decrease of the current is proportional to the current. If the initial current is 30 amp and it's down to 1 amp after 0.01 sec, what is the current after 0.03 sec?arrow_forward
- A uniform Simply-supported beam is found to vibrate in its first mode with the amplitude of 12 mm at its center. Assume E=200 GPa, I = 1000 mm“ , p=7500 kg/m², A=50mm² and L=2 m. Determine the maximum bending moment in the beam. Also find the first three natural frequencies.arrow_forwardQ2: In a dielectric material (ɛ = 5ɛ, ), the potential field V= 10xyz - 5z? V, determine (a) E, (b) D, (c) P, (d) P.arrow_forward8. A 4-µF capacitor, a 6-uF capacitor, and an 8-μF capacitor are in parallel across a 300-V source. Find (a) the total capacitance, (b) the magnitude of charge stored by each capacitor, and (c) the total stored energy.arrow_forward
- 1) Given the sinusoidal voltage v(t) 50 cos(30t + 10°) V, find: (a) the amplitude Vm, (b) the period T, (c) the frequency f, and (d) v(t) at t= 10 ms.arrow_forward2. Given the following circuit: R1 R2 R3 30 60 V1 V2 V3 -2V -4V 6V For circuit above, solve for the current through resistor R1 and the power dissipated by R1 Using the following methods of analysis: (1) Mesh Analysis (2) Nodal Analysis (3) Superposition (4) Thevenin's Theorem (5) Norton's Theoremarrow_forward19. For the network of Fig. 6.82 D, find: a. The voltage V. b. The current /2. c. The current I,. d. The power to the 12 kQ resistor. 12 kΩ 18 kN 48 V Is + v - 3 kN 12arrow_forward
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