100 Vi = 1.025/0° V3 = 1.03/1.36851° 300 1 Z13 90.51 Slack 136.93 Z12 Z23 2 V2 = 1.001243L-2.1° 400 MW 200 Mvar Consider the single line diagram shown in the figure. The line impedances given as: z13=j0.05 pu, z12=j0.025 pu, and z23=j0.025 pu. The base value of complex power = 100MVA. Powers in MW and Mvar . Bus voltages have been calculated as shown in the figure. The reactive power absorbed by the Line 2-3 is: Select one: O a. 0 Mvar O b. 18.42 Mvar O c. 1.25 Mvar O d. 7.77 Mvar

100 Vi = 1.025/0° V3 = 1.03/1.36851° 300 1 Z13 90.51 Slack 136.93 Z12 Z23 2 V2 = 1.001243L-2.1° 400 MW 200 Mvar Consider the single line diagram shown in the figure. The line impedances given as: z13=j0.05 pu, z12=j0.025 pu, and z23=j0.025 pu. The base value of complex power = 100MVA. Powers in MW and Mvar . Bus voltages have been calculated as shown in the figure. The reactive power absorbed by the Line 2-3 is: Select one: O a. 0 Mvar O b. 18.42 Mvar O c. 1.25 Mvar O d. 7.77 Mvar

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

If a load is symmetric with 50 ohm of series impedance and 13 ohms of mutual impedance, what are the sequence impedances? a. z11 = z22 = 63 ohm, z33 = 89 ohm, else 0 b. z11 = z22 = 33 ohm, Z00 = 76 ohm, else 0 c. z11 = z22 = 50 ohm, Z00 =89 ohm, else 0
Using the mesh analysis equation for loop 2 what are the steps for conversion for the division of imaginary numbers with phasors?
consider the following diagram of impedances in per unit of a common base a) get the YBUS admittance array and the ZBuz impedance array 213-j2 pu zt2-j0.15 zg2-j1.85 791-j0.9 211-0.1 1 212-j0.5pu 223-j0.5pu Va 1 p.u. Jv1-1p.u. 22-10 pu
In a balanced tephasic system Y - Delta of the figure. Find the line current IL and the average and supplied power to the load
Two three-generator are parallel at 6.6 kV and delivering 3000 kW at 0.8 pf. The impedance for machine A is 0.5+j10 ohm and for B 0.4+j12 ohm. The excitation of A is adjusted to deliver 150 A at lagging pf. Determine the induced emf of machine A.
The steady-state voltage drop between the load and the sending end of the line seen in (Figure 1) is excessive Suppose that V-4950/0° V (rms). A capacitor is placed in parallel with the 192 kVA load and is adjusted until the steady-state voltage at the sending end of the line has the same magnitude as the voltage at the load end, that is, 4950 V (rms). The 192 kVA load is operating at a power factor of 0.8 lag. Part A Calculate the size of the capacitor in microfarads if the circuit is operating at 60 Hz. In selecting the capacitance, use the value that results in the lowest possible power loss in the line. Express your answer in microfarads to three significant figures. ▸ View Available Hint(s) Figure 1 of 1 202 1100 192 kVA 0.8 lag ΜΕ ΑΣΦ. 11 vec C= 22.8 Submit Previous Answers Incorrect; Try Again; 5 attempts remaining Provide Feedback ? F
For the bridge circuits shown in the figure bellow, derive expressions to calculate the unknown impedances. Be Detector wwlle
Two power system areas operating at a nominal frequency of 60 Hz are connected with a tie line, and have the following characteristics: Area 1: R1 = 0.01 pu and D1 = 0.8 pu on a base of 1200 MVA Area 2: R2 = 0.02 pu and D2 = 1 pu on a base of 600 MVA The power flow direction on the tie line is from Area 1 to Area 2. Using a common base of 1000 MVA, what is the change in prime mover power (in MW) in Area 2 (APmech2) for a load increase of 125 MW in Area 1?
In the figure, bus 1 is the reference bus, V1 = 1.06 p.u and the angle is 0.. A load with active power= 100 MW and reactive power = 50 Mvar is connected to bus 2. The line impedance is z12 = 0.12 + j0.16 p.u on a base of 100 MVA. Start with an initial estimate of |V2|0) = 1.0 p.u and 820) = 0•. Find |V2| () (one iteration). 100 MW 212 = 0.12 + j0.16 ++ 50 Mvar Vị = 1.0/0° О а. |V2| (1) = 0.4 p.u. Ob. |V2| (1) = 0.5 p.u. Oc. |V2| (1) = 0.7 p.u. d. (1) = 0.8 p.u. е. |V2| (1) = 0.6 p.u.
Impedances Z1 = 5.83 at angle of -59 deg. and Z2 = 8.94 at an angle of 63.43 deg. are in series and carry an effective current of 5A. Determine the Power and power factor of the circuit indicating if it is leading or lagging.
For the system shown in figure, voltages V2, V3 and angles 82, 83 are calculated using Newton-Raphson method. shunt line charging admittances are neglected. All the values are given in per unit on 100MVA base. Calculate the complex power flows S12 and S32 in actual units. 1) Z12 = 0.01+ j0.02 Z3 = 0.02+ j0.04 PL G QL Slack bus V2 = 0.96L -1.67° V3 = 0.884 - 5.48° Vi=1.0/0° (estimated time to answer this question: 13 minutes)
A Three-phase transposed line is composed of one conductor per phase with flat horizontal spacing of D-14 meters, as shown in the below figure. The conductors have a diameter of 2.6 cm and a GMR of 1.012 cm. Find the capacitance per phase per kilometer of the line a D D 2D Select one: a 0.0088 microF/Km Ob. 0.0077 microF/Km Oc1455 microF/Km Od. None of these