Example 23. A 4 pole, 32 conductor, lap-wound d.c. shunt generator with terminal voltage of 200 volts delivering 12 amps to the load has Ra = 2 and field circuit resistance of 200 ohms. It is driven at 1000 r.p.m. Calculate the flux per pole in the machine. If the machine has to be run as a motor with the same terminal voltage and drawing 5 amps from the mains, maintaining the same magnetic field, find the speed of the machine. 12 amp 5 amp 13 amp 4 amp A, A, F2 1 amp F, 11 amp 200 V 200 V Supply A2 A2 Rh Rh. (a) Generator-action (b) Motor-action Fig. 23 peo

Example 23. A 4 pole, 32 conductor, lap-wound d.c. shunt generator with terminal voltage of 200 volts delivering 12 amps to the load has Ra = 2 and field circuit resistance of 200 ohms. It is driven at 1000 r.p.m. Calculate the flux per pole in the machine. If the machine has to be run as a motor with the same terminal voltage and drawing 5 amps from the mains, maintaining the same magnetic field, find the speed of the machine. 12 amp 5 amp 13 amp 4 amp A, A, F2 1 amp F, 11 amp 200 V 200 V Supply A2 A2 Rh Rh. (a) Generator-action (b) Motor-action Fig. 23 peo

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 4-pole generator having wave wound armature winding has 50 slots, each slots containing 20 conductors. What will be the voltage generated machine when driven at 1000 rpm assuming the flux per pole to be 6.0 mWb ?
please help
(a) A 2 pole generator with wave wound armature has 85 slots each having 14 conductors. The flux per pole is 28 mWb. At what speed must the armature rotate to give an induced EMF of 215V. Answer and unit for part 1 (b) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed
A 6 pole generator with wave wound armature has 58 slots each having 24 conductors. The flux per pole is 0.01 Wb. (i) At what speed must the armature rotate to give an induced EMF of 235V is? (ii) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed is?
(a) A 4 pole generator with wave wound armature has 85 slots each having 10 conductors. The flux per pole is 26 mWb. At what speed must the armature rotate to give an induced EMF of 220V. (b) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed
(B)-ndicate whether the following statements are true or false and correct the faise statements. -When a series d.c. motor is operate without load, the armature will not run. The strength of magnetic field in d.c. shunt generator can be varied by varying the polarity of the field poles The main disadvantage of series generators is Output voltage varies as the Toad varies There is no output from the transformer under short-circuit conditions
ASAP, answer now please..
An 4 pole, wave connected armature has 520 conductors and its generated e.m.f is 115 V. If the machine is driven at 600 rpm, then the flux per pole in Wb is
EXAMPLES 1. Sketch neat graphs to show the internal or open-circuit characteristics of a separately-excited d.c. generator. Why is a field regulator necessary with such a machine? A four-pole d.c. generator gives 410 V on open circuit when driven at 900 rev/min. Calculate the flux per pole if the wave-connected armature winding has 39 slots with 16 conductors per slot. 10219 wb (U.E.I.) 2. A six-pole d.c. generator having a lap-connected armature winding is required to give a terminal voltage of 240 V when supplying an arma- ture current of 400 A. The armature has 84 slots and is driven at 700 rev/min. The resistance of the armature circuit is 0-03 2 and the useful flux per pole is about 0-03 Wb. Calculate the number of conductors per slot and the actual value of the useful flux per pole. 8- 0.0321 wb 3. Explain why the terminal voltage of a d.c. shunt-excited generator falls as the current supplied by the machine is increased. The resistance of the field circuit of a shunt-excited…
A 3-phase, 6-pole, 25 Hz, Y-connected AC generator has a stator with 48 slots, each slot contains 20 conductors. The coils of each phase are connected in series. The flux density is 0.5 T. What is the speed of rotation of the stator magnetic field in RPM? Answer: The speed is: RPM.
The strength of the rotating magnetic field in a three phase induction motor is equal to times the flux produce ...... ....... in one of the phase windings. 1.25 1 O 1.5
(a) A 4 pole generator with wave wound armature has 65 slots each having 14 conductors. The flux per pole is 20 mWb. At what speed must the armature rotate to give an induced EMF of 225V. (b) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed