please Solve for me: Perform the reduction of the moment of inertia J=20 kgm^2 of the working mechanism to the motorshaft. The gear ratio of the gearbox i-5 and efficiency e-90%. Which moment of inertia on the motorshaft? DC motor armature voltage U=200 V; rated armature current In = 10 A; design factor KF = 2 V/(rad/s);armature circuit resistance R = 2 ohm. The load torque is applied to the motor shaft equal ratedtorque; then weakened the magnetic flux of the motor by 2 times. Determine motor speed

To find the moment of inertia reduced to the motor shaft, we use the following formula:…

Answered: Perform the reduction of the moment of…

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...

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10) In case of D.C. shunt motors the speed is dependent on back e.m.f. only because A. Back e.m.f. is equal to armature drop B. Armature drop is negligible C. Flux is proportional to armature current D. Flux is practically constant in D:C. shunt motors E. All above 11) Which D.C. motor will be suitable along with flywheel for intermittent light and heavy loads? A. Series motor B. Shunt motor C. Cumulatively compounded motor D. Differentially compounded motor E. All above 12) Welding generator will have A. Lap winding B. Wave winding C. Delta winding D. Duplex wave winding E. Star winding 13) The demagnetizing component of armature reaction in a D.C. generator A. Reduces generator e.m.f. B. Increases armature speed C. Reduces interpoles flux density A. Results in sparking trouble B. All above 14) As the load is increased the speed of D.C. shunt motor will A. Reduce slightly B. Increase slightly C. Increase proportionately D. Remains unchanged E. None of the above 15) The speed of a D.C.…
A 4-pole, 650v shunt motor has 720 wave connected conductors on its armature, The full-load armature current is 80A and the line flux per pole is 0,04Wb. The armature resistance is 0.4 ohms. Calculate the full load speed. Select the correct response: 548.80 rpm 321,88 rpm 643.75 грm 344.86 грm
SOLUTION FOR A-C The armature winding of a 200-V., series motor is lap-connected.There are 280 slots and each slot has 4 conductors. The current is45 A. and the flux per pole is 18 mWb. The field resistance is 0.3 Ω;the armature resistance is 0.5 Ω and the iron and friction losses total is800 W. The pulley diameter is 0.406 m. Find (a) speed, (b) outputpower, and (c) shaft torque.
Q6-Indicate whether the following statements are true or false and correct the false statements. 1- The characteristic (angular speed versus T) of a dc shunt motor is known as the External characteristics. 2- When a series d.c. motor is operate without load, the armature will not run 3- The generation of electricity achieved by moving a conductor in a magnetic field due to the relation E= ILB General questions 4- In series d-c generator the field winding will be constructed from high number of turns and high cross-sectional area of wire. 5-Series motor maintains a more constant speed under varying load 6-The armature voltage of d.c series generator is not affected by load current. 7- In series d-c generator the field winding will be constructed from high number of turns and high cross-sectional area of wire. 8- If field resistance of a d.c. shunt generator is increased beyond its critical value, the generator output voltage will exceed its rated voltage 9-The inter pole winding is…
A DC shunt motor takes an armature current of 20A at 800V, It has an armature resistance of 0.06 ohms and field resistance of 120 ohms. The machine has 8-poles and armature is lap connected with 964 conductors with a full load speed of 836 rpm. Calculate the line current and flux per pole. Select the correct response: 0.10 Wb and 10.22A 0.14 Wb and 12.44A 0,05 Wb and 14.58 A 0.15 Wb and 13,33A
Q3-(A)- Indicate whether the following statements are true or false and correct the false statements 1- In a d.c. series motor the electromagnetic torque developed is proportional to l'a 2- A shunt motor maintains a more constant speed under varying load conditions than a series motor. 3-In a de series generator, full load voltage is less than the no- load voltage 4-The generation of electricity achieved by moving a conductor in a magnetic field due to the relation E- ILB ks)
I want answer ! A 250-V shunt motor runs at 1000 rpm, at no-load and takes 8A. The total armature and shunt field resistances are respectively 0.2 ohm and 250 ohm. Calculate the speed when loaded and taking 50 A. Assume the flux to be constant.
QUESTION 19 The torque of a DC motor is at its minimum strength when the motor's armature loop is at the neutral plane O inside of the main field
The armature winding of a 200-V., series motor is lap-connected.There are 280 slots and each slot has 4 conductors. The current is45 A. and the flux per pole is 18 mWb. The field resistance is 0.3 Ω;the armature resistance is 0.5 Ω and the iron and friction losses total is800 W. The pulley diameter is 0.406 m. Find (a) speed, (b) outputpower, and (c) shaft torque.
The armature of a 4 pole, lap-wound shunt generator has 120 slots with 4 conductors per slot. The flux per pole is 0.05 Wb. The armature resistance is 0.05 ohm and the shunt field resistance is 50 ohm find the speed of the machine when supplying 450A at a terminal voltage of 250 v.
A 120 V shunt generator running at 850 rpm has its armature and shunt field resistance of 0.15 ohm and 50 ohm respectively. It supplies 200 lamps each rated at 60 W, 100 V. The friction and windage and core loss of the machine is 400 W. its armature copper * loss on full load and shunt field loss is 2156.7 W, 240 W 2232.6 W, 240 W O 2232.6 W, 200 W 2156.7 W, 200 W O
7. A 4-pole, 500V shunt motor has 720 wave connected conductors on its armature. The full-los armature current is 60A and flux per pole is 0.03 Wb. The armature resistance is 0.020 and th contact drop per brush is 1V. then the full-load speed of the motor is -- a) 675 r.p.m. b) 690 r.p.m. c) 705 r.p.m. d) none of the previous,

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