Q1/The table gives data for open circuit and short circuit tests on awww ww6 pole, 440 V, 50 Hz, 3 phase star connected alternator. The effectiveohmic resistance between any two terminals of the armature is 0.3ohm.Field16182cureent478101214O.c.C156288396440474530568592voltage46 5:S.C.C3411current22406980206 314 398 460 504Find the regulation at full load current of 40 A at 0.8 power factorZero PF80lagging, using emf method, mmf method and potier.

Rated per phase voltage, Vt=4403 =254.03V

Q1/The table gives data for open circuit and short circuit tests on a 6 pole, 440 V, 50 Hz, 3 phase star connected alternator. The effective ohmic resistance between any two terminals of the armature is 0.3 ohm. Field 16 18 2 cureent 6 | 10 4 7 8 12 14 o.c.c 156 voltage 440 474 530 288 396 568 592 wwwwwn S.C.C 11 current 57 22 34 40 46 69 80 www Zero PF 80 206 314 398 | 460 | 504 Find the regulation at full load current of 40 A at 0.8 power factor lagging, using emf method, mmf method and potier.

Q1/The table gives data for open circuit and short circuit tests on a 6 pole, 440 V, 50 Hz, 3 phase star connected alternator. The effective ohmic resistance between any two terminals of the armature is 0.3 ohm. Field 16 18 2 cureent 6 | 10 4 7 8 12 14 o.c.c 156 voltage 440 474 530 288 396 568 592 wwwwwn S.C.C 11 current 57 22 34 40 46 69 80 www Zero PF 80 206 314 398 | 460 | 504 Find the regulation at full load current of 40 A at 0.8 power factor lagging, using emf method, mmf method and potier.

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

Related questions

Q: A three phase 12 pole star connected alternator has 130 slots on the armature. Each slot contains 10…

Q: What is short circuit characteristics of (s.c.c) of an alternator Explain? Explain the effect of…

A: According to the bartleby's guideline we should solve only one question so please post another…

Q: A 3-phase, 16 pole alternator has a wye connected armature winding with 144 slots, 10 conductors per…

Q: The armature of a shunt generator has 0.08-ohm effective resistance. Each brush has an effective…

Q: Q1/ Calculate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors…

A: Eph = 4.44 kpkdϕf Tphkp = pitch factor = cos α2α -short pitch angle kd = Distribution factor = sin…

Q: QI/ Caleulate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors…

Q: In a three-phase star connected alternator it is necessary to generate 7200 line voltage at…

Q: A three phase 4 pole star connected alternator has 120 slots on the armature. Each slot contains 8…

A: 3 phase star connected alternator No of slot =120 No of conductor per slot = 8 2 conductor make a…

Q: Write down the Construction of an alternator with the help of diagram and write its Principle of…

A: Alternator is derived from ' alternating ' . Alternator is an electric generator which converts…

Q: 1- In an alternator, the armature reaction influences the magnitude of Wave form of generated…

A: NOTE- “Since you have posted a question with multiple sub-parts, we will solve first three subparts…

Q: v. With reference to an 50 Hz3 phase alternator explain how P,Q,V and F are controlled.

A: It is asked to explain the control of P (active power),Q (reactive power), V (voltage) and F…

Q: There are 180 double wound slots in a 3-phase, 50 Hz., 500 rpm, star connected alternator. Coil span…

Q: a) In an alternator, the armature reaction influences the magnitude of Wave form of generated…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: In alternators is rotating part. ............... Answer:

A: Alternators are basically AC generators. The main parts of an alternator are Stator, Rotor, Armature…

Q: An alternator has an armature resistance of 0.3 and leakage reactance of 1.220. The alternator…

A: In this question we need to find a terminal voltage and generate emf of alternator.

Q: A 3-phase, 60 Hz, Y-connected, AC generator has a stator with 60 slots, each slot contains 12…

A: AC generators are used to generate electrical energy. It converts mechanical energy in the shaft to…

Q: Can V curve be plotted for an alternator. If yes then what is the difference between V curve of an…

Q: The rotating part in an alternator is ................

A: Alternator converts mechanical energy into electrical energy.

Q: A 25cps single-phase, 8-pole, alternator with 725 mWb flux per pole has 288 slots. The machine coil…

Q: What are the main effects of losses on the performance of the alternator?

A: There are various effects of losses on the performance of alternator. To calculate the efficiency of…

Q: Make a general statement on the effect of increasing excitation to the power factor of the…

Q: The armature of a shunt generator has 0.05 ohm effective resistance. Each brush has an effective…

A: It is given that: Ra=0.05 ΩRb=2×0.01 Ω=0.02 ΩVt=100 VIL=40 A

Q: If one of the magnetic overload relays opens its contact, how can it be reset?

A: According to question we have to discuss about, If one of the magnetic overload relays opens its…

Q: a) A sinewave is having a frequency of 50 Hz and instantaneous value of 250 Volts at 1.1 milli…

Q: Leakage reactance of the machine is included in the armature reaction reactance in Magneto Motive…

A: Need to find true false

Concept explainers

Winding and Constructions

Alternating Current (AC) winding is generally of the 3-phase type due to the inherent advantages of the 3-phase machine. Armature coils must be connected to the yield balance (equivalent in magnitude and 2/3 of the series phase difference of the rod) 3-phase electromotive forces (emf). The armature should be divided into step-bands to start with slots around the perimeter.In the construction of AC machines, the frame is used as an external protective shield to protect it from environmental conditions. The frame also serves as the outer perimeter, allowing the interior to be easily placed. The static state section of the devices is the stator winding attached stator.

Question

Q1/The table gives data for open circuit and short circuit tests on a
www ww
6 pole, 440 V, 50 Hz, 3 phase star connected alternator. The effective
ohmic resistance between any two terminals of the armature is 0.3
ohm.
Field
16
18
2
cureent
4
7
8
10
12
14
O.c.C
156
288
396
440
474
530
568
592
voltage
46 5:
S.C.C
34
11
current
22
40
69
80
206 314 398 460 504
Find the regulation at full load current of 40 A at 0.8 power factor
Zero PF
80
lagging, using emf method, mmf method and potier.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Winding and Construction of the Rotor and Stator

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

An alternator is a type of alternating current generator that is electromechanical. 1. True 2. False
The maximum speed of an alternator working at 60 Hz is possible when the number of poles of the machine is ........ a. 4 b. 5 c. 3 d. 2
a) A sinewave is having a frequency of 100 Hz and instantaneous value of 100 Volts at 1.4 milli seconds. Find i) The maximum value of sinusoidal voltage waveform and ii) The value of voltage at 1.9 milli seconds. b) Determine the instantaneous equation for the voltage waveform shown in figure, if Vp=100 Volts, Time period is 10 milli seconds and 0 =30 degrees. Vp = 0 Upload your Answers steps in the "Final Answer Submission" Link provided in the Moodle. a) (i) Maximum value = a) (ii) Value of voltage at 1.9 ms = b) Angular frequency =
Find the terminal voltage (in volts) on open circuit for a star-connected 6-Pole alternator having a flux per pole of 50mWb with 4 slots per pole per phase with 4 conductors per slot and a coil span of 130° and running at 1250rpm.
There are 160 double wound slots in a 3-phase, 50 Hz., 600 rpm, star connected alternator. Coil span is 15 slots and there are 3 turns per coil. Flux per pole is 0.1120 WB. Calculate (1) emf per conductor (2) emf per coil.
A 20-pole, star-connected, three-phase alternator rotates at 300 r.p.m. The armature has 360 slots and 6 conductors per slot. The width of the coils is 5/6 of the pole pitch. If the maximum flux per pole, with a sinusoidal distribution, is 0.086 Wb, what will be the values of the emfs? phase and line? I need the procedure to get to that answer. Thank you
A 20-pole, three-phase, star-connected alternator rotates at 300 rpm. The armature has 360 slots and 6 leads per slot. The width of the coils is 5/6 from the polar pass. If the maximum flux per pole, with sinusoidal distribution, is 0.086 Wb, what will be the values of the f.e.m.s. phase and line
I want calculation step by step
QI/ Caleulate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors per slot connected in two layers. The slots per pole per phase are 8 and the coil span is 20 slots. The phase spread is 60° and the flux per pole is 25-8 x 1o weber.
Calculate the voltage per phase for a 1500 rpm, 4 pole alternator having a double layer winding with 16 turns per coil. The slots per pole phase are 8 and the coil span is 20 slots. The phase spread is 60o and the flux per pole is 25.8 milli webers.
a) A sinewave is having a frequency of 100 Hz and instantaneous value of 150 Volts at 1.5 milli seconds. Find i) The maximum value of sinusoidal voltage waveform and ii) The value of voltage at 1.8 milli seconds. b) Determine the instantaneous equation for the voltage waveform shown in figure, if Vp=100 Volts, Time period is 20 milli seconds and =40 degrees. Vp ì = 0