2. A 3-0, 10-pole, Y-connected alternator runs at 600 r.p.m. It has 120 stator slots with 8 conductors perslot and the conductors of each phase are connected in series. Determine the phase and line e.m.fs. if theflux per pole is 56 mWb. Assume full-pitch coils.[1910 V; 3300 V] (Electrical Technology-II, Madras Univ. April 1977)3. Calculate the speed and open-circuit line and phase voltages of a 4-pole, 3-phase, 50-Hz, star-connectedalternator with 36 slots and 30 conductors per slot. The flux per pole is 0.0496 Wb and is sinusoidallydistributed.[1500 r.p.m.; 3,300 V; 1,905 V] (Elect. Engg-II, Bombay Univ. 1979)4. A 4-pole, 3-phase, star-connected alternator armature has 12 slots with 24 conductors per slot and theflux per pole is 0.1 Wb sinusoidally distributed.Calculate the line e.m.f. generated at 50 Hz.[1850 V]

We are authorized to answer only 1 question at a time since you have not mentioned which question…

2. A 3-0, 10-pole, Y-connected alternator runs at 600 r.p.m. It has 120 stator slots with 8 conductors per slot and the conductors of each phase are connected in series. Determine the phase and line e.m.fs. if the flux per pole is 56 mWb. Assume full-pitch coils. [1910 V; 3300 V] (Electrical Technology-II, Madras Univ. April 1977)

2. A 3-0, 10-pole, Y-connected alternator runs at 600 r.p.m. It has 120 stator slots with 8 conductors per slot and the conductors of each phase are connected in series. Determine the phase and line e.m.fs. if the flux per pole is 56 mWb. Assume full-pitch coils. [1910 V; 3300 V] (Electrical Technology-II, Madras Univ. April 1977)

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 Y-connected alternator delivers a unity power-factor load at 220 volts. If the synchronous-reactance voltage drop is 50 volts per phase, neglecting the resistance voltage drop. First Trinal Exan 2. A 3-phase I load at 200 a. calculate the generated voltage b. calculate the percent regulation
19.In a 3-phase star-connected alternator, a field current of 40 A produces a full load current of 200 A on short circuit and 1160 volt on open circuit. If the resistance of the alternator per phase is 0.50 ohm, then the value of the synchronous reactance is
A three-phase Y-connected alternator delivers a unity power-factor load at 230 volts. If the synchronous-reactance voltage drop is 60 volts per phase, calculate the per cent regulation, neglecting the resistance voltage drop.Ans.: 9.77%
A 15kVA, 440V, single-phase alternator draws a field current of 5A at rated load. With the same field current, the open circuit emf and short-circuit current are 100V and 80A respectively. The ohmic resistance of the armature between terminals is 0.12 ohm. The ratio of effective to ohmic resistance maybe taken as 1.1. Determine the voltage regulation (in %) when the load is purely resistive.
A 10 MVA, 11 kV, 3-phase star-connected alternator is protected by the Merz-Price balance-currentsystem, which operates when the out-of-balance current exceeds 20% of full-load current. Determinewhat portion of the alternating winding is unprotected if the star point is earthed through a resistance of9 Ω. The reactance of the alternator is 2 Ω.
A three phase star connected alternator of 1000 KVA, and 4600 volts, has an armature resistance of 2 ohms per phase and an armature synchronous reactance of 20 ohms per phase. Find the voltage generated at full load per phase if : a) Supplies power to a purely resistive load b) If you feed a load with inductive power factor of 0.85 c) If you feed a load with a capacitive power factor of 0.75 d) If you feed a load with capacitive power factor 0.4
A four-pole, three phase, 50Hz, star connected AC generator has 24 stator slots. There are 6 conductors per slot and a sinusoidally distributed flux per pole of 63mWb. Find the terminal voltage on open circuit, if the coil span factor is unity. * Well Explained
A 30 MVA, three-phase, wye-connected, 60 Hz, 13.8 kV synchronous alternator has negligible stator resistance and synchronous reactance of 10 W/phase. Calculate the % voltage regulation of the alternator when it is operation in isolation (stand-alone) and delivering rated MVA to a 0.866 pf leading load at 13.8 kV. Calculate the % voltage regulation of the alternator when it is operation in isolation (stand-alone) and delivering rated MVA to a 0.707 pf lagging load at 13.8 kV.
Hello, I just want to ask for some help. Please help me as soon as possible, I will give thumbs up ? for your answer. Thank you. A three-phase, star connected alternator has a nameplate rating of 100kVA, 4160V, three phase, 60Hz, 1800rpm. It has a synchronous impedance per phase of 0.6+j0.9 ohm. (a) Determine the generated emf when the power factor is 0.8 lagging at half-load. (b) What is the voltage regulation in percent?
The effective resistance of a 2200 V, 50 Hz, 440 KVA, 1 -phase alternator is 0.5 ohm. On short-circuit, a field current of 40 A gives the full load current of 200 AS. The electromotive force on open-circuits with same field excitation is 1160 V. Then the synchronous impedance and reactance is _______ ohm and _______ ohm respectively.
A 3 phase mesh-connected AC generator has a power angle of 15.4 degrees and synchronous impedance of 0.5 + j10 per phase while delivering 300A to its load at a lagging power factor and 13,200 volts line to line. Find the no load emf in volts, line to line.
Two 15-kVA, 400-V, 3-ph alternators in parallel supply a total load of 25 kVA at 0.8p.f. lagging. If one alternator shares half the power at unity p.f., determine thep.f. and kVA shared by the other alternator.