An overhead 3-phase transmission linedelivers 6000 kW when a current of 180 A isflowing through the transmission line. If theimpedance of the transmission line is 12 Ohmand reactance is 8 Ohm. Determine:(i) Resistance of the transmission line(ii) Three-phase power loss(iii) Percentage Efficiency

Given, 3 phase overhead transmission line Power deliver= 6000 KW Current flowing in line, Il= 180 A…

Answered: An overhead 3-phase transmission line…

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...

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Similar questions

A load impedance of (200+j0) ohm is to be matched with a 50 ohm transmission line using a quarter wave transformer. What will be the value of the characteristic impedance of the quarter wave transformer.
No-load operation and short circuit tests were performed on three-phase, 50 Hz 480/220 delta / Y connected transformer. In these testsThe line voltage, line current and three-phase total power have been measured from the high voltage windings and the test results are below.pictures. 100 A DC current when 1.08 V DC voltage from non-transferable software is applied to the low voltage windingshas attracted.Find the single phase equivalent circuit parameters of this transformer.idle test:Voltage: 480V Power:114w current: 0.71Ashort circiut test:V: 10v P: 78w c: 18.3a
The reactance of a generator is given as 0.1 pu based on the generator of 17 KV, 300 MVA. Determine the pu reactance on a base of 17 KV, 250 MVA. New pu reactance is.......
If the line-to-line primary voltage and line current is 1.0 at 0 degrees, what is the secondary line- to-line voltage for the following three-phase transformers? Assume a turns ratio of N = 10. Express answer in polar form. a. Delta-to-Delta: b. Delta-to-Wye: c. Wye-to-Delta: d. Wye-to-Wye:
3) A three-phase transformer of 60 kVA (three-phase power), 13200/480 V (line A line) in delta-strella connection has a resistance of 0.02 PU and a reactance of 0.08 PU. For this transformer, calculate: a) The voltage regulation at full load and F.P. 0.85 in delay. (b) The regulation of voltage voltage to full cargo and F.P. Unitarian. c) The voltage regulation at full load and F.P. 0.85 in advance.
For a 50 kVa distribution transformer, which on its high voltage side is 2400 V and on the short-circuit low voltage secondary has a voltage of 240 V with a frequency of 60 Hz, it has a leakage impedance of 0.72+j0.92 Ω on the high voltage side and 0.0070+j0.0090 Ω on the high voltage side low tension. The short-circuit test presented values of 48 V, 20.8 A and 617 W for high voltage. The impedance responsible for the excitation current is 6.32+j43.7 Ω referring to the low voltage side. One open circuit test, with the low voltage side energized, presented the values of 240 V, 5.14 A and 186W. According to the information presented, determine: a. Draw the equivalent circuit on the high voltage side and present the impedance values in the circuit. b.Draw the equivalent circuit on the low voltage side and present the impedance values in the circuit. c. For the high voltage value, calculate the value of the current flowing in the magnetizing impedance. d.Determine the yield for an…
6.5% ans ex A so kvA. 2o00/20 V, So He single-phase transformar has impedance drof of8% and resistance drop of 4%. Caleulate. The Requlation of the Thams former at full- Load o8 P.s Legging. also find The Power factor at which Voltage requlation will Be Zero. Sols 0.5 leading. s alculate The % Noltege Requlation af atransformar in w hich the Percantage resistance drof is 1% and Percentage dre is 6% when The Power fador is 0.8 lagging ) > unity aMS 38 % ans 1 % (シ→ 0.8 leading . amS - 2.2%
It is bartleybe's policy that if questions objective than you need to solve at least first 3 questions.
wo (2) 1 phase transformers having equal turns, ratio and ratings are operated in parallel to supply a load of 280 kW at 80% p.f. lagging- Transformer A has 2 % resistance and 8 % reactance, while transformer B has 1% resistance and 6 % reactance. What is the power delivered by each of the transformers to the load?

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