A 208-V three-phase power system is shown in Figure A-13. Itconsists of an ideal 208-V Y-connected three-phase generator connected through a three-phase transmission line to a Y-connected load. The transmission line has an impedance of0.06 + j0.120 per phase, and the load has an impedance of 12 + j9 N per phase. For thissimple power system, findThe magnitude of the line current I0.06 Nj0.12 N0.06 Nj0.12 nV- 1202-240°VanZ, = 12 + 9 N12020208 VVan - 1202-120°(0.06 Nj0.12 n

Given circuit is - Given values are - VLLine=208VoltZLinePhase=0.06+j0.12OhmZϕPhase=12+j9Ohm

A 208-V three-phase power system is shown in Figure A-13. It consists of an ideal 208-V Y-connected three-phase generator connected through a three- phase transmission line to a Y-connected load. The transmission line has an impedance of 0.06 + j0.12A per phase, and the load has an impedance of 12 + j9N per phase. For this simple power system, find The magnitude of the line current I 0.06 N 0.12 n 0.06 N j0. 12 A 2. 2, = 12 + 9 n V- 1202-240° Van- 12020 208 V Vn- 1202-120° 0.06 N j0.12 n

A 208-V three-phase power system is shown in Figure A-13. It consists of an ideal 208-V Y-connected three-phase generator connected through a three- phase transmission line to a Y-connected load. The transmission line has an impedance of 0.06 + j0.12A per phase, and the load has an impedance of 12 + j9N per phase. For this simple power system, find The magnitude of the line current I 0.06 N 0.12 n 0.06 N j0. 12 A 2. 2, = 12 + 9 n V- 1202-240° Van- 12020 208 V Vn- 1202-120° 0.06 N j0.12 n

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.47P: Two three-phase generators supply a three-phase load through separate three-phase lines. The load...

See similar textbooks

Similar questions

A 13.8-kV, single-phase generator supplies power to a load through a step-up transformer, a transmisson line, and a step-down transformer as in the figure above. Assume the transformers are ideal. The load’s impedance is Zload = 200 L 36.870, and the transmission line’s impedance is Zline = 70 L 600 What are the transmision losses in Watts?
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
Having a phase impedance of 23.7 + j17.1 Ω at 50 Hz given in Figure Δ-connected load, Y-joint source resulting in 400 V and 50 Hz with impedance 0.1 + j0.3 Ω on each line fed by. According to this, a) Find the line flow and load voltage. b) Find the load-arm currents. c) There are active and protective forces produced by the source.
A three-phase system has balanced conditions so that the per-phase circuit representation can be used as shown in Figure 1 Select the turns ratio of the step-up and step-down transformers that the system operates with an efficiency greater than 99 percent. Moreover, find the complex power (received or given) of all components in the circuit and the V1 and V2 voltages. The load voltage is specified as 4 kV rms, and the load impedance is 4/3 ohm. ..
Q1 Figure 1 shows the online diagram of a three-phase power system. By selecting a common base of 100 MVA and 22 kV on the generator side, draw an impedance diagram showing all impedancesincluding the load impedance in per-unit. The data are given as follows: G: 100 MVA 22 kV x= 0.18 per unitT1: 60 MVA 22/220 kVT2: 40 MVA 220/11 kVT3: 40 MVA 22/110 kVT4: 40 MVA 110/11 kVM: 66.5 MVA 10.45 kVLines 1 and 2 have series reactance’s of 48.4 and 65.43 V, respectively. Atbus 4, the three-phase load absorbs 57 MVA at 10.45 kV and 0.6 power factor lagging.Figure 1x =0.10 per unit x = 0.06 per unitx =0.064 per unit x= 0.08 per unit x =0.185 per unit
Which termination would result to a phase change of 180 degrees at the load if Zo = 100 ohm? a. 50 ohm b. short circuit c. 75 ohm d. all of these What is the purpose of impedance matching? a. maximum return loss b. maximum SWR c. maximum load power d. maximum reflection A short piece of transmission line that may be open or shorted and used for impedance matching purposes. a. converter b. decoder c. stub d. transformer
Two three-phase generating power stations, A and B, work at 97 kV and deliver power to their respective consumers as follows: Power station A delivers 900 MVA to its consumers at a power factor of 0.766 lagging. Power station B delivers 600 MVA to its consumers at a power factor of 0.819 lagging. An interconnector with an impedance of (1.5 + j5.6) Ω per line is connected between A and B. The voltage at power station A is advanced with an angle of 9° with respect to the voltage at power station B. Use the complex power method and do the following calculations. Determine the total active power delivered or received by Power station A (Pi) in MW Determine the total reactive power delivered or received by Power station A (Qi) in MVAr Determine the total active power delivered or received by Power station B (Pj) in MW. Determine the total reactive power delivered or received by Power station B (Qj) in MVAr Use complex power method to determine the final reactive power loadings (Qa) on…
A three-phase supply, with the line voltage 240 V rms positively phased, has an unbalanced delta-connected load as shown in the figure below. Find the phase currents and the total complex power.
The three-phase power and line-line ratings of the electric power system shown in Figure-1 are given below: G1:82 MVA 30 kV X=10% T1:72MVA 30/300 kV X=11% T2:72MVA 300/30 kV X=11% M:62MVA 25 kV X=9% 300 kV Z= 89+j179 Apply the knowledge of per unit system on above network and draw an impedance diagram showing all impedances in per unit when Sb =100MVA and Vb = 30 kv
A balanced Y-connected generator with terminal voltage Vbc 5 200/08 volts is connected to a balanced-D load whose impedance is 10/408 ohms per phase. The line impedance between the source and load is 0.5/808 ohm for each phase. The generator neutral is grounded through an impedance of j5 ohms. The generator sequence impedances are given by Zg0 5 j7, Zg1 5 j15, and Zg2 5 j10 ohms. Draw the sequence networks for this system and determine the sequence components of the line currents.
A balanced positive-sequence three-phase source hasvan(t)=100 cos(377t+90°) V a. Find the frequency of this source in Hz. b. Give expressions for vbn(t) and vcn(t) c. Repeat part (b) for a negative-sequence source.
Can you please solve the d e f parts? Three symmetrical three-phase loads are connected in parallel. Load 1 is connected in Y with an impedance of 400 + j300Ω / φ, load 2 is connected in with with an impedance of 2400 - j1800Ω / φ and load 3 is evaluated at 172.8 + j2203.2 kVA. Loads are supplied from a distribution line with an impedance of 2 + j16Ω / φ. Size of the voltage between the line and the neutral conductor at the end of the charge the line is 24√3 kV. The operating frequency is 50 Hz.(a) Calculate the line currents and the phase currents of the loads.(b) Calculate the total complex power at the receiving end of the system.(c) Calculate the total complex power at the transmitting end of the line.(d) Calculate the values of the compensation capacitors which are connected from the line to the neuron at the load end of the system so that the power factor at the load end reaches pf ≥ 0.98.(e) What if the capacitors are connected from one line to another? What would be the best…