2. The 550 kVA, 60-Hz transformer shown in Fig. 3 supplies the following fourparallel-connected loads at 600 V.L1100 kW, 0.7 p.f. lagL2160 kVA, 100 kVAR, lag p.f.L3200 kW, 0.8 p.f. lagL4100 kVA, 0.9 p.f. leada) What is the total real and reactive powers supplied by the transformer?Draw the power triangle of the total load and calculate its power factor.b) Is the transformer overloaded?c) Calculate the transformer current IT.d) Determine the value of a “pure” shunt capacitance, C required to adjust thepower factor of the total load to 0.95 lag.e) Is the transformer overloaded after the installation of the shunt capacitor?

Step 1: The calculation of S, P, Q is simply based on pythagorus theorem and basic trigonometry of…

Answered: 2. The 550 kVA, 60-Hz transformer shown…

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

A 100 kVA, 400 V/250 kV testing transformer has 8% leakage reactance and 2% resistance on 100 kVA base. A cable has to be tested at 500 kV using the above transformer as a resonant transformer at 50 Hz. If the charging current of the cable at 500 kV is 0.4 A, find the series inductance required. Assume 2% resistance for the inductor to be used and the connecting leads. Neglect dielectric loss of the cable. What will be the input voltage to the transformer?
VASSESSMENT PROBLEM Objective 4-Be able to analyze circuits containing linear transformers using phasor methods A linear transformer couples a load consisting of a 360 2 resistor in series with a 0.25 H inductor to a sinusoidal voltage source, as shown. The voltage source has an internal impedance of 184 + j0 N and a maximum volt- age of 245.20 V, and it is operating at 800 rad/s. The transformer parameters are R1 = 100 2, = 0.5 H, R2 = 40 1, L2 k = 0.4. Calculate (a) the reflected impedance; (b) the primary current; and (c) the secondary current. 9.14 R1 R2 juM jas Ia Source b Transformer d Load = 0.125 H, and
A 220V(rms), 50HZ sinusoidal source is connected to the primary side of an ideal transformer with 100 turns on the primary side and 300 turns on the secondary side. Primary line resistance is 22 and inductance is 10mH. Secondary line resistance is 92 and inductance is 100mH. There is a 1002 resistive load connected on the secondary side. Draw a well-labeled circuit diagram and determine: (i) Currents on both sides (ii) Load Voltage (iii) Complex power supplied by the source
A 500 kVA, single phase transformer working at 0.95 pf has an efficiency of 94% both at FL and HL. Determine its efficiency at 78% FL at 0.85 pf lagging. Find also the ouput when it delivers maximum efficiency of 0.9 pf lagging and its efficiency. Your answer
Please solve thiss questionnnnn
Determine the peak-to-peak ripple and dc output voltages. The transformer has a 36 V rms secondary voltage rating, and the line voltage has a frequency of 60 Hz. Neglect Rsurge.
generator (b) What is the average power dissipated in R? P=[ W Help Enter 500 v generator voltage -500 v AC Generator 0 Ideal Transformer R = 300 Rg8 time (a) The sinusoidal voltage output from the AC generator oscillates between 500 V and -500 V. The circuit for an ideal transformer is constructed with a generator, transformer and a 30 W resistor. The generator makes 6 loops with the transformer and the resistor makes 11 loops with the transformer (the figure does not show these loops accurately). What is the maximum voltage across the resistor R? V= V Help Enter
Chapter 31, Problem 065 SN An ac generator provides emf to a resistive load In a remote factory over a two-cable transmission line. At the factory a step-down transformer reduces the voltage from its (rms) transmission value Vt to a much lower value that is safe and convenient for use in the factory. The transmission line resistance is R per cable, and the power of the generator is P. The generator can supply either Vt = V1 or Vt = V2. (a) What is the ratio of the voltage decrease AV along the transmission line when operating at Vị to the voltage decrease at V2? (b) What is the ratio of the power loss Pd at V1 to the power loss at V2? Express your answers in terms of P, R, V1, and V2. (a) AV,/AV2 = 2 Edit (b) Pa1/Pa2 = %3D 2 Edit
Help!!!!!
A 10 Kva, 2400/240-V single-phase transformer has the following resistances and reactances. Find the primary voltage required to produce 240 V at the secondary terminals at full load, when the power factor is 0.8 lagging.Rp = 3 ohms; Xp = 15 ohms; Rs = 0.03 ohm; Xs = 0.150 ohm. Ans.: 2496.47 V show circuit diagram
A source supplies power to the following three loads connected in par- allel: (1) a lighting load drawing 10 kW, (2) an induction motor drawing 10 kVA at 0.90 power factor lagging, and (3) a synchronous motor operating at 7.5 kW, 85% efficiency and 0.95 power factor leading. Deter- mine the real, reactive, and apparent power delivered by the source. Also, draw the source power triangle.
Consider the following transformer circuit assuming an ideal transformer. In this circuit the signal generator will provide a 10-Volt peak-to-peak sinusoidal signal at a frequency of 1.0 kHz. Assume that L₁ = 0.65 H, L2 = 0.00492 H (=4.92 mH) and that the coupling constant = 0.99925. VG1 + R1 1k N1:N2 11.5:1 12 + + V1 N1 N2 V2 R2 8.2 1) Find the following using the theory presented in the prelab reading: a) Start with Equations (2) of the prelab reading and show that the input impedance to an ideal transformer is given by the equation for Z1 (= V₁/I1) in Equations (4) of the prelab reading. Equations (2) are: V₁ = j@L₁I₁ +j@MI2 and V₂ = j@MI₁ +j@L₂I 2 The equation for the input impedance is: Z1 = = = jwL₁ + 11 (WM)² jwL2+ZL b) Assuming that ZL is a real impedance, find the equations for the real and imaginary parts of Z1. c) Use your equations from part (b) to calculate the value of the input impedance (Z1) at an operating frequency of 200 Hz. Assume that the load impedance is 8.2…

SEE MORE QUESTIONS

Recommended textbooks for you

Introductory Circuit Analysis (13th Edition)

Electrical Engineering

ISBN:

9780133923605

Author:

Robert L. Boylestad

Publisher:

PEARSON

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

Programmable Logic Controllers

Electrical Engineering

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

Introductory Circuit Analysis (13th Edition)

Electrical Engineering

ISBN:

9780133923605

Author:

Robert L. Boylestad

Publisher:

PEARSON

Delmar's Standard Textbook Of Electricity

Electrical Engineering

ISBN:

9781337900348

Author:

Stephen L. Herman

Publisher:

Cengage Learning

Programmable Logic Controllers

Electrical Engineering

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

Fundamentals of Electric Circuits

Electrical Engineering

ISBN:

9780078028229

Author:

Charles K Alexander, Matthew Sadiku

Publisher:

McGraw-Hill Education

Electric Circuits. (11th Edition)

Electrical Engineering

ISBN:

9780134746968

Author:

James W. Nilsson, Susan Riedel

Publisher:

PEARSON

Engineering Electromagnetics

Electrical Engineering

ISBN:

9780078028151

Author:

Hayt, William H. (william Hart), Jr, BUCK, John A.

Publisher:

Mcgraw-hill Education,

SEE MORE TEXTBOOKS