Question

A 6 hp, 180 V shunt dc motor draws a full-load current of 30 A from the power supply. The motor has a field (shunt) resistance of 150 Ω. The armature resistance of the motor is 0.1 Ω. When the motor speed is 1800 rpm (this is not the full-load speed), the relationship between the induced voltage

Next > < Previous

Sort answers by oldest

• Votes
• Oldest
• Newest

Homework Answers

Answer #1

As per HomeworkLib policy we need to answer only the first four sub parts of the question if multiple questions are posted.. Please upload remaining questions separately so that someone can answer... Thanks in advance for understanding...

Sol. Oc shun、Mo.DY CY(uA dta 91 am i, dvaw( 鹛卻ouOR Eo - 30,

%) Can ohon Ni Fo 180 1800

Co TFL= 23.792| N·m 8ox 30 6x73ς.5ナ290.944) s+oo-(4-41)ナ298, y44) Rota

Know the answer?

Add Answer to:

A 6 hp, 180 V shunt dc motor draws a full-load current of 30 A from the power supply. The motor h...

Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Log In

Sign Up

Post as anonymous

Post Your Answer

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.

Similar Homework Help Questions

• A) The input current to a 220 V, short-shunt compound motor at no load is 6 A. The shunt- field c...

  a) The input current to a 220 V, short-shunt compound motor at no load is 6 A. The shunt- field circuit resistance is 220 Ω; the armature resistance is 0.112, and the series-field resistance is 0.1 Ω, what is the stray power loss ? (b) Assume the input rating of the motor in Part (a) to be 66 A at 220 V with a no-load speed of 1000 rpm. If the stray power loss varies as the counter-electromotive force and...

• Question (3) Speed Control [10 Marks A 50 hp, 220 V, 1500 rpm DC shunt motor...

  Question (3) Speed Control [10 Marks A 50 hp, 220 V, 1500 rpm DC shunt motor with an armature resistance of 0.04 Q and a field resistance of 50 Q. The motor has compensating windings, so armature reactance can be ignored. Mechanical and core losses may be ignored also. The moter is driving a load toque that is proportional with speed, Ti a (n). The motor is driving a load with a line current of 80 A and an initial...

• 1. A 300 V compound motor has armature resistance 0.18 Ω, series field resistance 0.3 Ω...

  1. A 300 V compound motor has armature resistance 0.18 Ω, series field resistance 0.3 Ω and shunt field resistance 100 Ω. The rotational losses are 200 W. On full load the line current is 25 A and the motor runs at 1800 rpm. Determine: (i) the developed mechanical power (ii) the output power (iii) the output torque (iv) the efficiency at full load 2. A 120 V series motor has 0.2 Ω field resistance. On full load, the line...

• The power input to a dc shunt motor during rated-load conditions is 100 W. The rotor...

  The power input to a dc shunt motor during rated-load conditions is 100 W. The rotor speed is 2000 r/min, and the armature voltage is 100 V. The armature resistance is 2? and Rf = 200 ?. Calculate the no-load rotor speed. 2. The power input to a dc shunt motor during rated-load conditions is 100W. The rotor speed is 2000r/min, and the armature voltage is 100V. The armature resis- tance is 2 Ω and Rf-200Ω. Calculate the no-load rotor...

• A 250 V, 10 KW, 1200 rpm dc shunt motor has a full load efficiency of...

  A 250 V, 10 KW, 1200 rpm dc shunt motor has a full load efficiency of 80 percent. Its field and armature resistances are 110 ohms and .25 ohm respectively. Calculate the value of the resistance to be inserted in series with the armature and the power lost in the armature circuit to reduce the speed to 80 percent when the load torque is constant regardless of the speed.

• 5.2. (15 pt.) A shunt DC motor has the following characteristics Prated 30 hp, Vt =...

  5.2. (15 pt.) A shunt DC motor has the following characteristics Prated 30 hp, Vt = 240 V; nated 1200 rpm Ra-0.19 Ω; Rs 0.02 2; Rotational losses at full load 3550 W rated= 110 A NF 2700 tums per pole NSE 12 turns per pole Radj 100 to 400 Ω 320 Speed = 1200 r/min 240 き 200 180 3 160 140 120 100 0 0. 0.2 0.3 04 0.5 0.6 0.7 0.8 0.9 1.0 1. 2 13 1.4...

• Show all working 1. A 4 pole, 220 V, 10 H.P, d.c. shunt motor is rotating...

  Show all working 1. A 4 pole, 220 V, 10 H.P, d.c. shunt motor is rotating at a speed of 320 rpm. Then the developed useful torque is 2. A 4 pole, lap wound d.c. motor drawing an armature current of 20 A has 360 conductors. If the flux per pole is 0.015 Wb then the gross torque developed by the armature of motor is 3. A 220 V, d.c. motor draws an armature current of 20 A. Its armature...

• 220 v dc shunt motor has Ra= 0.25 ohms and Rf=120 ohms . At no-load the...

  220 v dc shunt motor has Ra= 0.25 ohms and Rf=120 ohms . At no-load the motor draws a current It=6A. And runs at 1500 rpm. At full-load the motor draws 62 A. the armature reaction at full load reduces the flux by 10%. Determine the rotational losses , motor speed at full-load, the shaft torque and efficiency.

• A DC 220V shunt motor draws a no load current of 3.5A.Its armature and shunt resistances...

  A DC 220V shunt motor draws a no load current of 3.5A.Its armature and shunt resistances are: 0.25 and 440 ohms. At full load it draws a current of 65.5 A . Find the efficiency of machine at full load. pleas SHOW ALL WORK... i really need to learn it THANKS

• A 8250 w shunt DC motor has a terminal voltage of 300 V. A field resistance...

  A 8250 w shunt DC motor has a terminal voltage of 300 V. A field resistance Rf of 40 Ω, and an armature resistance Ra of 250 mm2. The field winding has 1500 turns. An adjustable resistance Rad is connected in series to the field winding. Rad is set at 20 Ω, but it can vary from 0 to 80 Ω. The magnetization curve is shown in Figure.1 and it is taken at a speed of 1200 rpm. (Armature reaction...

Answer 1

As per HomeworkLib policy we need to answer only the first four sub parts of the question if multiple questions are posted.. Please upload remaining questions separately so that someone can answer... Thanks in advance for understanding...

Sol. Oc shun、Mo.DY CY(uA dta 91 am i, dvaw( 鹛卻ouOR Eo - 30,

%) Can ohon Ni Fo 180 1800

Co TFL= 23.792| N·m 8ox 30 6x73ς.5ナ290.944) s+oo-(4-41)ナ298, y44) Rota