Static rotor resistance control methods - motor control , Electrical Engineering

Assignment Help:

Static Rotor Resistance Control Methods

This method is used only for slip  ring induction motor in SRIM  3- phase  variable  resistor can be inserted in the rotor  circuit and by  varying this resistance in the rotor  circuit and by  varying this resistance  the motor  torque and hence speed  of th motor  can be  controlled. This methods  is  used when speed drop  is required for a short  time.

It has some  disadvantages if rotor  resistances are  not equal unbalances in voltages and  currents  occur at low  speeds efficiency is reduced and with  load variation speed  is changed very  quickly therefore  chopper circuit  is used.


Related Discussions:- Static rotor resistance control methods - motor control

Semiconductor material, Semiconductor Material: Semiconductor is a mat...

Semiconductor Material: Semiconductor is a material that has a conductivity level somewhere between the extreme of an insulator and a conductor   Resistivity of a material

What is capacitor, What is Capacitor -  A capacitor is an electrical d...

What is Capacitor -  A capacitor is an electrical device that is used to kept electrical energy.   -  The unit of capacitance is Farad. The symbol of capacitance is C.

Complex number and variabls, what is tha lapelace transform of t^n please g...

what is tha lapelace transform of t^n please give me the answer i am so worried about iy???

Engine management systems for ic engines, In continuation of Part-B, the st...

In continuation of Part-B, the student is required to configure an engine management system for the proposed engine and produce a report including the following: A preamble

On which hysteresis loss is least depend, Hysteresis loss least depends on ...

Hysteresis loss least depends on (A) Frequency.                         (B) Magnetic field intensity. (C) Volume of the material.     (D)Grain orientation of material.

Amplifier, what is one common applicable for CB amplifier

what is one common applicable for CB amplifier

Find the frequency of oscillation - amplifier gain, Q. Find the frequency o...

Q. Find the frequency of oscillation, amplifier gain ? The transfer function is found to be where the equation is written as a Laplace transform (s=jw). Analysis of thi

Power distribution, 1.  Establish importance of Distribution Planning with ...

1.  Establish importance of Distribution Planning with help of suitable example.     2.  Explain different distribution planning methods.       3.Explain the six level interv

Speed control of dc motors, Q. Show Process of Speed Control of DC Motors? ...

Q. Show Process of Speed Control of DC Motors? Equation showed that the speed of a dc motor can be varied by control of the field flux, the armature resistance, and the armatur

Cro, Diagram and explanation of cro

Diagram and explanation of cro

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd