10.6 A 3-phase star-connected Alternator is rated at 11 kV (line). The effectiveresistance and Synchronous reactance per phase are 2.0 and 20 2 respectively.Calculate the percentage voltage regulation for a load current of 100 A at pf of (i)unity and (ii) 0.8 lag[Ans: (i) 7.85% : (ii) 23.634%]

Step 1: Step 2: Step 3: Step 4:

Answered: 10.6 A 3-phase star-connected…

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 three – phase 11 kV wye connected synchronous alternator has a synchronous reactance of 8 ohms per phase but negligible resistance. If the excitation is such that the open circuit voltage is 14kV, determine the power factor at the maximum output. a. 0.786 b. 0.772 c. 0.793 d. 0.708
The voltage regulation of an alternator having 0.75 leading p.f. load, no-load induced e.m.f. of 2400V and rated terminal voltage of 3000V is............... percent. *
The step down DC chopper uses DC source voltage V(dc) = 200 V and resistive load impedance of 10 ohm. The duty cycle is 0.4 the voltage drop across the switch may be taken as zero, Calculate : (a) Average and RMS value of output voltage. (b) Average and RMS value of output current.
Please help with the solution.
v. With reference to an 50 Hz3 phase alternator explain how P,Q,V and F are controlled.
3.
Kindly solve the problem with step by step complete solution. Also, put the given and formula used so that I can understand. Thank you. A 2200V, 60 Hz, three-phase, Y-connected alternator has an effective resistance per phase of 0.5 ohm. A field current of 30A produces a full load current of 200A on short circuit and a line-to-line emf of 1100 V on open circuit. Determine the power angle of the alternator when it delivers full load at .80 lagging pf.
A 50kVA, 550V single phase alternator draws a field current 10A at rated load. With the same field current, the open circuit emf and shirt circuit current are 300V and 150A. The ohmic resistance of the armature between terminals is 0.18Ω. The ratio of effective to ohmic resistance may be taken as 1.5. Determine the terminal voltage at 0.8 pf factor lagging. Use two decimal places.
Q5: A 3-phase, 50 Hz, 8-pole alternator has a star-connected winding with 120 slots and 8 conductors per slot.The flux per pole is 0.05 Wb, sinusoidally distributed. Determine the phase and line voltages.
An alternating current varying sinusoidally with a frequency of 50 Hz has anrms value of 20 A.a) Determine the instantaneous value at 0.0025 seconds.b) Determine the instantaneous value, 0.0125 seconds after passingthrough a positive maximum value.c) At what time, measured from a positive maximum value, will theinstantaneous current be 14.14 A?
A 1200 kVA, 6600 volt, 3-phase, Y-connected alternator has an effective resistance of 0.40 ohm and a reactance of 6 ohms per phase. It delivers full load current of 0.80 lagging power factor at rated voltage. What will be the terminal voltage for the same excitation and load current if the power factor is 0.80 leading? a. 4,560 V b. 9.878 V c. 7.898 V d. 4,250 V Choose the letter of the correct answer. Show your solution.
A 6-pole, 3-phase, wye-connected, 60 Hz alternator has 12 slots per pole and 4 conductors per slot. The winding is 5/6 pitch. The flux per pole is 0.025 Wb. Find the open circuit emf per phase. a. 284.5 V/phase b. 295.7 V/phase c. 303.4 V/phase d. 308.6 V/phase

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

10.6 A 3-phase star-connected Alternator is rated at 11 kV (line). The effective resistance and Synchronous reactance per phase are 2.0 and 20 2 respectively. Calculate the percentage voltage regulation for a load current of 100 A at pf of (i) unity and (ii) 0.8 lag [Ans: (i) 7.85% : (ii) 23.634%]