Tutorial Qut stion.Tutorial Solution.Unit 2- Power Tra...EE321 Course No.SubscribeTutorial Questions - Power Transformers.pdf13. The figure below shows part of a power system consisting of a generator, two transformersand a transmission line.Transmission line,150MVA100km120MVA(80+j60)MVA120MW11kV220/66kVX=0.02puz =(0.06+j0.6)/km220/11kVX =0.02puX= 0.02pu(a) Calculate all the impedances in per-unit at a common base of 150 MVA.(b) Calculate the voltage at the load if the voltage at the generator bus is 11 kV.

Answered: Image /qna-images/answer/750e8ec6-9044-4095-82d6-2728acaa0dd4.jpg

13. The figure below shows part of a power system consisting of a generator, two transformers and a transmission line. +0+ Transmission line, 150MVA 100km 120MVA 120MW 11kV (80+j60)MVA z =(0.06+j0.6)N/km 220/11kV X=0.02pu 220/66KV X=0.02pu X= 0.02pu (a) Calculate all the impedances in per-unit at a common base of 150 MVA. (b) Calculate the voltage at the load if the voltage at the generator bus is 11 kV.

13. The figure below shows part of a power system consisting of a generator, two transformers and a transmission line. +0+ Transmission line, 150MVA 100km 120MVA 120MW 11kV (80+j60)MVA z =(0.06+j0.6)N/km 220/11kV X=0.02pu 220/66KV X=0.02pu X= 0.02pu (a) Calculate all the impedances in per-unit at a common base of 150 MVA. (b) Calculate the voltage at the load if the voltage at the generator bus is 11 kV.

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

3) Calculate the currents I1, I2 and I0, as well as the active power supplied to the load secondary side.
I:56)
1. Sinewave A lags sinewave B by 30°. Both have peak values of 15V. Sinewave A is the reference with a positive going crossing at 0°. Determine the instantaneous value of sinewave B at 30°, 45⁰, and 200⁰.
A generator rated 75MVA is delivering 0.8pu power to a motor through a transmission line of reactance j0.2pu. The terminal voltage of the generator is 1 pu and that of the motor is also 1 pu. Deermine (a) the generator e.m.f (E) behind transient reactance (b) the maximum power that can be transferred
Q/A Generator operation dt 50 HZ, delivers 1-1 P-u. Power to an infinite busbar Throught a Networke. A Fan It accurs which reduces The maximum Transferable to 0-6 p.whereas before the fanilt This power was 1.8 p.u. and after the clearanes of the fault it is 1-3 P-4, If the inertia constant of Generator is 2.7 mil MUA, Ibtain the swing curve (0-200ms) For a fault clearance time of (100ms) (let =), Then examine the 0.05 Sec stability of the system.
An 8.2kW seriesd generator has an armature resistance is 0.25 ohms with a generated voltage equal to 4212.43 V. Determine the series field resistance should be installed in this machine in order to supply a load at 400V.
26- If we have a multi - stage impulse generator with a highest charging voltage ( Vrms) of 115.475 KV & a discharge capacitance of the generator ( Cg) of 1 microfarad. If we need to generate a high voltage of 7.07107 MV (r.m.s): 1) What is the number of stages? ? 2) What is the energy of this generator a- 5 stage, 200 KJ. b- 4 stage, 200 KJ. C50 stage, 20KJ. d- All these answers are wrong. 27- For economic consideration, we -13 prefer to use HVDC Transmission than using HVAC Transmission when the distance of the transmission line a- Equal to 280 km. b- Under than 300 km. C- Greater than 300 km. . d- Between 50 to 500 km. e- 28- The working stress of the d.c. cable-3 insulation may be a- 2 to 3 times higher than under a.c b- .4 to 5 times higher than under a.c. C 3 to 4 times higher than under a.c. . 1 to 2 times higher than under a.c. d- 29- The most dangerous/short circuit fault that increases the voltage (overvoltage) on the other lines is: a- Single line to earth. b- Two line to…
IL = 0.49 < -25.84° p.u V1 = 0.14286< 41.99° p.u V2 = 0.06897 < 33.09° p.u V3 = 0.0353 < 30.47° p.u V4 = 1< 0° p.u
What is the KW rating of a three phase 975 KVA generator at A) unity power factor B) 80% power factor C) 50% power factor
For a power station the yearly load duration curve is a straight line from 32,000 to 3000 kw. To meet the load three turbo-generators are installed. The capacity of two generators is 16,000 kw each and the 3rd is rated at 4,000 kw. a. Draw the yearly duration curve b. Determine the load factor, annual capacity factor, and maximum demand
A Load of particular kVA is drawing a current which lags behind the voltage at an angle of 63.43 degrees. The operating power factor is __________ . a. 0.5958 b. 0.6122 c. 0.6511 d. 0.4472
Power factor and power rating