Using the per unit system to solve voltage regulation. at areceiving substationAposer transformerhas the follouing information Ou its nane plete,120MVA330/66 KV; 50Hla Yeld; ONAFZ- (2.5 + JI0)%If the Core losses of the trangformerare equal0.725MH, what will be the efficiencyof the transforPoLDer facker 0: 80 Laggingtoon full lozod at amer.O Tarleulate the volfaige regulafion of tletromsformer en full Load at paser facforof 0.8 lagging.To accommadade a hugher laacf, a' nees fransformervated 5OMVA 830/66 KV, sotlz , is to be nstalocin paralbl uith the first transformer.i) Determine the lond on each, fromsformer ef heyfupply a to tal load if 50MVA atfacfor of O.85lagging.power

I have solved 2 part of this question because you have not given impedance of other parallel…

at a receiving Substation A. poser rangformer has the following information Ou its name plete, 120MVA 330/66 KV; 50Hla Ydd; ONAF Z- (2:5 +JI0)% i) If the Core losses to O.725MH, what of the transfor power facor the transfor mer of will be tee efficiendy are equal on full loaod at a O. 80 legging mer). Toaloulate the voffage regulation of the tromsformer on full Load at pover facfor of 0.8 lagging.

at a receiving Substation A. poser rangformer has the following information Ou its name plete, 120MVA 330/66 KV; 50Hla Ydd; ONAF Z- (2:5 +JI0)% i) If the Core losses to O.725MH, what of the transfor power facor the transfor mer of will be tee efficiendy are equal on full loaod at a O. 80 legging mer). Toaloulate the voffage regulation of the tromsformer on full Load at pover facfor of 0.8 lagging.

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

Describe the concept of smart grids and their potential benefits in terms of efficiency and reliability.
What are the constraints are following in unit commitment?
Figure below shows the single-line diagram of three-bus power system with generation at bus 1 and bus 3. The voltage at bus 1 is V₁ = 1.025/0° per unit. The voltage magnitude at bus 3 is fixed at 1.05 per unit with a real power generation of 250 MW. The scheduled load on bus 2 is marked on the diagram. Line impedances are marked in per unit on a 100 MVA base. Line resistances and line charging susceptances are neglected. By using Gauss-Seidel method and initial estimates of V₂(0) = 1.020° and V3(0) = 1.0520°, determine V₂ and V3. Perform calculation for one iteration. V₁ = 1.025/0° j0.1 Slack Bus j0.2 j0.4 j0.2 3 j0.1 250 MW 150 Mvar |V3|=1.05 P3 = 250 MW
5) Non minimum phase systems are also non causal. ) True False
Needs Complete solution with 100 % accuracy.
2.2. The figure below shows a radial transmission system with a generator having a per-unit voltage of 1.3 at an angle of 9 degree p.u. The load demand is 47MW at a power factor of 0.96lagging. Use the nameplate values of Transformer 2 as base values and calculate the following: Correct answers to three decimal places : 25..Per unit impedance of transformer and it's angle 26.Per unit voltage of the line and its angle 27.Per unit impedance of the line and its angle. And Reactance of the transmission line when the load consumes full-load (Ω).
A three-bus power system has generators at buses 1 and 2 with per unit subtransient reac- tances G1X"=0.1 and G2X"=0.08. The per unit branch reactances are X12=0.05, X13=0.10, X23=0.05, with 0.0540 0.0368 0.0425 Zbus = j 0.0368 0.0506 0.0460 0.0425 0.0460 0.0782 The pre-fault voltage magnitude is 1.02 per unit and the system is unloaded. Suppose a three-phase fault occurs at bus 3. (a) Calculate the fault current I" at the faulted bus. (b) Calculate the per unit generator terminal voltages (V1, V½) during the fault. (c) Calculate the per unit line currents feeding bus 3 (I13, I23) during the fault.
The system values are given below. The bus 1 voltage after fault = 1.5 p.u The bus 2 voltage after fault = 1.2 p.u The line admittance between bus 1 and bus 2 (Y12 ) is = 0.8 p.u The post fault current current flow between bus 1 and 2 is ..............
Describe the generator control Schemes for wind electric Schemes
Explain the concept of pumped hydro storage and its role in grid stabilization.
In the shown below power system, both generators G1 and G2 emf’s are equal.All the system data are shown on the system diagram.a) Draw the system diagram in per unit using (MVA)base = 75 and (KV)base =20 KV in the generators side.b) Calculate the three-phase balanced short circuit current (If) at busbar 3 inAmpere and the fault level (MVA)sc in MVA.c) If the fault at busbar 3 is a line-to-line fault, calculate the fault current inAmpere and the fault level (MVA)sc in MVA.
Discuss the challenges and solutions related to power system stability and control in a large-scale interconnected grid.