Ashunt-wound DC motor with the field coils and rotor connected in parallel (Figure 1) operatesfrom a 130 V DC power line. The resistance of the field windings, R, is 208n. The resistanceof the rotor, R, is 4.90 2. When the motor is running, the rotor develops an emf E. The motordraws a current of 4.46 A from the line. Friction losses amount to 45.0 WPart CCompute the emf E.> View Available Hint(s)undo redo Tese keyboard shortcuts HelpSubmitPart DCompute the rate of development of thermal energy in the field windings.Express your answer in watts.> View Available Hint(s)Temglates Symbolsundo redo Teset keyboard shortcuts HelpPaindingsFigure1 of 1>SubmitPart ECompute the rate Pin rotor of development of thermal energy in the rotor.Express your answer in watts.ReE. R,> View Available Hint(s)Templates Symbols undo redo feset keyboard shortcuts HelpPn,rotor =W

From the DC shunt motor equivalent circuit

Ashunt-wound DC motor with the feld coils and rotor connected in parallel (Figure 1) operates from a 130 V DC power line. The resistance of the field windings, R, is 208n. The resistance of the rotor, R,, is 4.90 2. When the motor is running, the rotor develops an emf E. The motor draws a current of 4.46 A from the line. Friction losses amount to 45.0 W Part C Compute the emf E. > View Available Hint(s) undo retdo Tese keyboard shortcuts Help V Submit Part D Compute the rate of development of thermal energy in the field windings. Express your answer in watts. > View Available Hint(s) Temglates Symbols undo redo Teset keyboard shortcuts Help Pan,windings= W Figure 1 of 1) Submit Part E Compute the rate Parotor of development of thermal energy in the rotor. Express your answer in watts. E. R, > View Available Hint(s) Templiates Symbols undo redo feset keyboard shortcuts Help Parotor =

Ashunt-wound DC motor with the feld coils and rotor connected in parallel (Figure 1) operates from a 130 V DC power line. The resistance of the field windings, R, is 208n. The resistance of the rotor, R,, is 4.90 2. When the motor is running, the rotor develops an emf E. The motor draws a current of 4.46 A from the line. Friction losses amount to 45.0 W Part C Compute the emf E. > View Available Hint(s) undo retdo Tese keyboard shortcuts Help V Submit Part D Compute the rate of development of thermal energy in the field windings. Express your answer in watts. > View Available Hint(s) Temglates Symbols undo redo Teset keyboard shortcuts Help Pan,windings= W Figure 1 of 1) Submit Part E Compute the rate Parotor of development of thermal energy in the rotor. Express your answer in watts. E. R, > View Available Hint(s) Templiates Symbols undo redo feset keyboard shortcuts Help Parotor =

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

• Q5/ in a DC motor. List and describe the types of losses that occur
A D.C. series motor of resistance 1 ohm between terminals runs at 800 r.p.m. at200 V with a current of 50 A. Find the speed at which it will run when connectedin series with a 5 ohms resistance and taking the same current.
Q3) The armature of a 4-pole DC machine has 240 coils wound in lap formation. Each coil generates a voltage of 4 V and carries a current of S A. a) Calculate the total generated voltage in the armature,Eg. b) Find the current in each parallel path and total armature current. c) If the armature is rewound in wave formation, find the generated voltage, Eg. current per path and total armature current. Assume number of coils are fixed at 240.
A repulsion start, induction run motor is used to drive a fan. The motor has a rated power of 2kW and operates at 220V. The repulsion start winding has a resistance of 0.5 ohm while the induction winding has a resistance of 0.3 ohm. Determine the total loss in the motor, assume 0.8 pf.
Can you solve the question ?
Colve asap
answer all parts please
Reducing the supply voltage so that Vnew = Vold / V3 reduces the maximum torque of the motor so that Tmaxnew= ...Tmaxold . * .... ...
q10
A 600 V series motor takes 120 A and operates at 900 rpm when the load is80 HP. If the effective circuit resistance is 0.20 ohm, calculate the HPoutput of the motor when the current drops to 90 A. assuming that the fluxis reduced by 20 %. [Ans. 49.86 HP]