A 4-pole wave-wound motor is connected to a 406 V d.c. supply. The armature has 479 conductors and a resistance of 221 m0. The flux per pole is 40 mWb. Calculate the speed in RPM, when the armature current is 31 A O a. 1271.40 RPM O b. 624.97 RPM O C. 20.83 RPM O d. 1056.86 RPM

A 4-pole wave-wound motor is connected to a 406 V d.c. supply. The armature has 479 conductors and a resistance of 221 m0. The flux per pole is 40 mWb. Calculate the speed in RPM, when the armature current is 31 A O a. 1271.40 RPM O b. 624.97 RPM O C. 20.83 RPM O d. 1056.86 RPM

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 4-pole dc generator is running at 1500 rpm. The frequency of current in the armature winding is…

A: we need to determine frequency.

Q: A 4 pole generator with wave wound armature has 52 slots each having 22 conductors. The flux per…

Q: 1. Laminations of core are generally made of. e.+ Si 37. 2. In case of the induction motors the…

Q: d.c. series motor has a wave wound armature with 180 conductors. The armature resistance and the…

Q: A three-phase alternator, 20 kV, synchronous has a reactance of 10 Ω and a negligible resistance.…

Q: A long shunt compound generator delivers 50 A load at 500 V. Find induced e.mf. and the armature…

A: In the question, A long shunt compound generator deliver 50A at 500V. Find the armature current,…

Q: Sketch neat graphs to show the internal or open-circuit characteristics of a separately-excited d.c.…

A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…

Q: ) the armature windings of a 12-pole DC machine are composed of 72 coils with 10 windings, and the…

Q: 2) the armature windings of a 12-pole DC machine are composed of 72 coils with 10 windings, and the…

Q: A 4 pole machine running at 1500 rpm has an armature with 90 slots and 6 conductor per slot. The…

A: First we will find out the generated emf then we will find out power .

Q: An 8 pole, lap connected armature has 500 conductors has the flux per pole is 20 mWb is driven at…

A: For lap connected armature, Number of parallel path ( A ) = number of pole

Q: A 2 -pole generator has a lap-wound armature with 48 slots with 14 conductors per slot. The useful…

A: The solution is given below.

Q: Q 5. A wave-wound armature of a 6-pole generator has 51 slots. Each slot contains 20 conductors. The…

A: The solution can be achieved as follows.

Q: A 4-pole d.c.shunt generator with a wave- wound armature hasto supply a load of 500 lampseach of…

Q: A 220 V , 60 Hz , supply is connected to 200 – turn armature winding of reluctance 1.7x105 At / Wb .…

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

Q: 1- A 6 pole lap-connected de generator driven at 1000 rpm, the useful flux per pole is…

A: An electrical machine where mechanical to electrical energy conversion takes place is called d.c.…

Q: Q 5. A wave-wound armature of a 6-pole generator has 51 slots. Each slot contains 20 conducto…

A: Emf induced in a dc machine is given by Eb=∅ NZ60×PA where ∅ is the flux per…

Q: Q2) In DC machine, the speed is 800 RPM, the flux per pole is 2 m wb, and it has a Lap winding…

A: Given: In a DC machine Speed, The flux per pole, It has Lap winding (means the number of parallel…

Q: 7- Iron loss in the rotor of a 3-phase induction motor (a) Very low frequency of emf induced in the…

A: In this question, We need to choose the correct options Iron losses in the rotor of the 3 phase…

Q: A 4 pole, lap wound, d.c. generators has 42 coils with 8 turns per coils. It is driven at 1120…

A: To solve above problem one should know the EMF equation of dc generator. EMF generated by dc…

Q: A 4-pole, 500 V d.c. shunt motor has 720 wave-connected conductors on its armature. The full-load…

Q: A 4Pole D.C shunt generator with armature and shunt field resistance of 1ohm, 100ohm has 378 wave…

A: A shunt generator is a sort of direct flow electric generator in which field winding and armature…

Q: b) A Four pole, wave wound DC series motor operating at 120V has 100 conductors on its armature. It…

Q: A 4 pole generator with wave wound armature has 52 slots each having 26 conductors. The flux per…

A: In this question we need to find a speed of wave wound genrator when induced voltage is 225 V and…

Q: The speed of a 2 pole SCRIM at no load is; Synchronous speed c. Constant speed d. Infinity а. b.…

Q: b) A Four pole, wave wound DC series motor operating at 120V has 100 conductors on its armature. It…

Q: A 4-pole generator has a lap-wound armature with 60 slots with 15 conductors per slot. The useful…

A: Given, In a dc generator, Number of poles, P=4 Lap wound so number of parallel path, A=P=4. Slots is…

Q: -Bole machine has an armature with 90 slots and 8 conductors per slot, the flux per pole is 0.05 Wb…

A: A machine may be a motor or generator.These also be AC or DC. A machine which convert electrical…

Q: 38. Calculate the voltage induced in the armature winding of a 4-pole, wave wound, dc machine…

A: Given, Number of poles, P = 4 Wave wound, so the number of parallel paths, A = 2 Number of…

Q: The armature of a 4pole, 128slots shunt generator is lap wound with four conductors per slot. The…

Q: A 6 - pole lap wound shunt motor has 500 conductors.The armature and shunt fielo resistance are 0.05…

Q: An eight-pole d.c. the generator has a per pole flux of 40 mWb, and winding is connected in t lap…

A: It is given that: Number of Poles=P=8Per pole flux=ϕ=40 mWb=40×10-3 WbNumber of…

Q: A 4 pole generator with wave wound armature has 54 slots each having 20 conductors. The flux per…

A: We will use direct formula for developed voltage , we will put all known parameters to find out…

Q: A 4 - pole lap - wound d.c. shunt generator has a usefull flux per pole of 0.07 Wb.The armature…

Q: A 10 -pole generator has a lap-wound armature with 56 slots with 14 conductors per slot. The useful…

A: In this question , we will find speed of dc generator with given data...

Q: Ad.c. shunt generator runs at 400 r.p.m.and delivers 500 kW to busbars having a constant voltage of…

Q: - A Dc shunt generator produces 445 A at 250 V, the resistance of shunt field circuit and armature…

Q: Q 4. An 8-pole DC generator has 400 armature conductors and a useful flux of 0.05 Wb. What will be…

Q: Q2. A 4-pole, wave-wound armature has 72 slots with two coil-sides per slot, each coil has four…

A: Given, Poles P=4 Wave wound A=2 Slots = 72 Two coil sides per slots and each coil has four turns.…

Q: A separately excited generator when running at 1249 rpm supplies 110 A at 173 V to a circuit of…

A: First calculate back emf when speed is reduced and than calculate new value of terminal voltage.

Q: A 4-Pole, duplex wave-wound de generator, has 144 slots with 2 coils per slot, each having two…

Q: A 220 V , 60 Hz , supply is connected to 200 – turn armature winding of reluctance 1.7x105 At / Wb .…

A: Given:220 Voltf=60HzN=200 turnsReluctance S=1.7×105At/WbTo find:Magnetising reactance=?InductanceL=?

Q: A 4-pole alternator runs at 1,200 RPM. There are 10,000 kilolines per pole. (a) Determine the…

A: Emf generated in alternator = 4.44 ×frequency ×flux per pole × turns. Pitch factor = cos (E/2).…

Q: plz help! A dc generator is rated at 19 kWkW , 250 VV, and 76 AA when it rotates at 1200 rpmrpm .…

Q: An eight-pole, 24 KW, 124 V, DC machine has a duplex LAP-wound armature which has 72 coils with 6…

A: Given An eight-pole, 24 KW, 124 V, DC machine has a duplex LAP-wound armature which has 72 coils…

Q: A 4 pole generator with wave wound armature has 52 slots each having 22 conductors. The flux per…

Q: A 6 pole generator with wave wound armature has 58 slots each having 20 conductors. The flux per…

Q: A 4 pole generator with wave wound armature has 56 slots each having 28 conductors. The flux per…

Question

q. 17

A 4-pole wave-wound motor is connected to a 406 V d.c. supply. The armature has 479 conductors and a resistance of 221 m0. The
flux per pole is 40 mWb. Calculate the speed in RPM, when the armature current is 31 A
O a. 1271.40 RPM
O b. 624.97 RPM
O C. 20.83 RPM
O d. 1056.86 RPM

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 with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

A 8 pole wave wound dc shunt generator runs at a speed of 1450 rpm, has an armature and shunt field resistance of 0.7 Q and 240 Q respectively. The armature has 910 conductors and flux per pole is 0.115 Weber. If the lamp load connected has a resistance of 20 0, determine (i) Generated EMF (ii) Total Resistance (iii) Armature Current (iv) Terminal Voltage.
9. A shunt generator is connected to a load that draws 28.8 kW. Ra = 0.04 ohm and Rsh = 48 ohms. If the power delivered in the armature is 106.3 % of the power delivered to the load. Determine the terminal voltage of the generator.
The dc shunt generator is connected to a load that draws 28,800 watts, given the armature and shunt field resistance of 0.04 ohm and 48 ohms respectively. If the power delivered in the armature is 106.3 % of the power delivered to the load. Calculate the generated e.m.f. of the generator. A: 242.97 V
A shunt generator is connected to a load that draws 28.8 kW. If thepower developed in the armature is 106.3% of the power delivered tothe load and the armature resistance and shunt field resistance are0.04Ω and 48Ω, respectively, solve the terminal voltage of thegenerator.
A 4 pole lap connected shunt generator has 300 armature conductors and a flux per pole of 0.1webe. It runs at 1000rpm. The armature and field resistances are 0.2 ohms and 125 ohms respectively. Calculate the terminal voltage when it is loaded to take a load current of 90A.
An 8 pole shunt generator has a lap connected armature with 640 conductors. The flux per pole is 50 mWb. If the generator supplies two hundred fifty 230V, 15W – LED lamps, the field and armature resistances are 230Ω and 0.05Ω, respectively, determine the speed in rpm of the generator. Hint: The lamps are connected in parallel
Write the solution neatly. A 230 V d.c. shunt motor, having an armature resistance of 0.05 ohm and a fieldresistance of 75 ohms, draws a line current of 7 A while running light at 1120 rpm. Determine the motor efficiency when the line current at a given load is 46 A. Answer % = 83.92 %
A 2 pole wave wound dc shunt generator runs at a speed of 750 rpm, has an armature and shunt field resistance of 0.9 Q and 280 Q respectively. The armature has 880 conductors and flux per pole is 0.115 Weber. If the lamp load connected has a resistance of 30 Q, determine (i) Generated EMF, (ii) Total Resistance, (iii) Armature Current, (iv) Terminal Voltage.
The nameplate speed of a 25-Hz inductionmotor is 720 r/min. If the speed at no load is 745r/min, calculatea. The slip.b. The percent regulation.
A 4-pole lap-connected armature of a dc Shunt generator is required to supply output loads connected as follows: (1) 2.5 kW Geyser connected in series with a 2.5 kW dc motor. (2) 5 kW Lighting load connected in parallel with the above load. If the load voltage is 250v and the Generator have an armature resistance of 0.2 ohm and a field resistance of 250 ohms. The armature has 120 conductors in the slots and runs at 1000 rpm. Allowing 1 V per brush for contact drops and neglecting friction loss, find? 1- Total flux offered by shunt excitation? 2-If the number poles are doubled what will be the new total flux?
An 8-Pole, simplex lap wound, shunt generator has 800conductors and a flux per pole of 0.025Wb. The armature and shunt field resistances are 1ohms and 45ohms respectively. If a resistance of 11.25ohms is connected as load and the machine is running at 800rpm. Calculate the load current(in amp)
A series generator having a combined armature and field resistance of 04. Ohms is running at 1000 rpm and delivering 5.5 kW at a terminal voltage of 110V. If the speed is raised to 1500 rpm and the load adjusted to 10 kW. Find the new terminal voltage.