Draw the characteristic tabulated intable 9, What do you learn from theload characteristic?Table 9 Torque - speed characteristic of separately excited shunt woundmotor1.0 1.25t1860 1750 1640 1540 1450 1400 1290 1260T/Nm0.250.50.751.5 1.752n/rpm2000Use graph paperThe answer is handwritten without using acomputer

Answered: Image /qna-images/answer/8afb38db-59e5-47a7-b59e-93772958997f.jpg

Draw the characteristic tabulated in table 9, What do you learn from the load characteristic? Table 9 Torque – speed characteristic of separately excited shunt wound motor 00.25 1860 1750 1640 1540 1450 1400 1290 1260 1.0 1.25 1.5 1.75 T/Nm 0.5 0.75 n/rpm 2000 Use graph paper The ans wer is handwritten without using a

Draw the characteristic tabulated in table 9, What do you learn from the load characteristic? Table 9 Torque – speed characteristic of separately excited shunt wound motor 00.25 1860 1750 1640 1540 1450 1400 1290 1260 1.0 1.25 1.5 1.75 T/Nm 0.5 0.75 n/rpm 2000 Use graph paper The ans wer is handwritten without using a

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 460V, 25 hp, 60 Hz, 4 pole, Y-connected wound rotor(R2) has the following impidances in Ω/phase refered to the stator circuit. R1= 0.64 Ω , X1= 1.106Ω , R2=0.332Ω ,X2=0.464Ω , Xm=26.3 a)Torque max? b) Slip max? c) Wm at which Torque max occurs?? d) Starting Torque? e) If R2 is doubled what is the speed at which the max torque occurs now? f) Plot the original torque-speed curves and the adjusted T (with R2^2)
A 200V long-shunt generator delivers 100A, has an armature resistance of 0.05Ω, a series field resistance of 0.25Ω and a shunt field resistance of 200Ω. If a feeder resistance of 0.05Ω and a brush contact drop of 2.5V are considered, what will be the generated voltage (in Volts) of the machine? use two decimal places if the answer is not exact and do not include the unit anymore.
A 230V shunt motor has an armature resistance of 0.28Ω and a field resistance of 115Ω. At no-load, the line current is 8A and the speed is 2300rpm. What is the speed when the line current is 52A? Assume brush drops of 1V at no-load and 3V at load condition and constant flux density. 2154rpm 2212rpm 2178rpm 2155rpm
EE 422 - AC and DC Machinery Solve the following problems completely. Box and Round-off your final answer in nearesttwo decimal places 1.A 25 hp,250V long shunt compound motor takes 5 A when running light and runs at 1150 rpm. Armature resistance, 0.15 ohm, Shunt field resistance, 200 ohm and series field resistance, 0.05 ohm. At rated load the motor takes 86.5A and runs at 720 rpm. Determine the ratio of torque developed from no-load to full load. answer: 1:34 2.A compound motor develops a torque of 271 lb-ft when it is operating at 1200 rpm, under which condition its armature current Ia is 215 amperes. What will be the developed horsepower of the motor if the load is increased so that it slows down to 1,1120 rpm in which case Ia changes to 238 amperes and the total flux increases by 8 percent? answer: 69.1hp
solve correctlt, previous answer wrong A 230V shunt motor has an armature resistance of 0.28Ω and a field resistance of 115Ω. At no-load, the line current is 8A and the speed is 2300rpm. What is the speed when the line current is 52A? Assume brush drops of 1V at no-load and 3V at load condition and constant flux density. 2154rpm 2212rpm 2178rpm 2155rpm
In shunt DC generator, the rated load power and speed are 6kW and 1500rpm. Therated load voltage is 230V. The internal armature resistance is 0.92Ω. The resistance ofthe field winding is 177Ω. Calculate the following:(a) The no -load voltage(b) Electromagnetic torque needed to start the generator armature in N-mHint: Use the formula PIN = (2π N T) / 60where PIN is the power inputN is the generator rated sped in rpmT is the torque needed to crank the generator armature in N-m(c) The percentage voltage regulator
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
An 8-Pole, simplex lap wound, shunt generator has 800conductors and a flux per pole of 0.025Wb and running at 1200rpm. The armature and shunt field resistances are 0.25Ω and 120Ω respectively. If the armature voltage drop is equal to 10V, what is the load current (in Amp)? use two decimal places if the answer is not exact and do not include the unit anymore.
A 240V shunt motor, running on no-load and at normal speed, takes an armature current of 2.4 A froma 240Vsupply. The resistance of the field circuit is 240Ω, and that of the armature is 0.25Ω. Calculatethe motor output power and efficiency when drawing a line current of 35 A from the supply
A belt-driven 100-kW, shunt generator running at 300 RPM on 220-V busbars continues to run as a motor when the belt breaks, then taking 10 kW. What will be its speed when the armature resistance = 0.025 ohms, field resistance = 60 ohms and contact drop under each brush = 1 V? Assume the flux deteriorates by 25% when ran as a motor.
A 50Hp, 250v shunt motor moves a load that demands constant torque regardless of speed, the armature resistance is 0.04Ω, it is known that at full load the armature current is 160A Ia1=160A Ra=0.04Ω a) If the flux is reduced by 10% of the initial value, will the magnitude of the armature current change? Ia2=177.77A (NOTE: this is the answer of this part because just I need the part b ) b) Will the velocity value change? if so how much
A long-shunt compound-wound generator gives 240V. at full loadoutput of 100 A. The resistances of various windings of the machineare: armature (including brush contact) of 0.1Ω, series field of 0.02Ω,shunt field of 100Ω. The iron loss at full load is 1000 W.; total windageand friction losses of 500 W. Calculate the full load efficiency of themachine.