Static rotor resistance control methods - motor control , Electrical Engineering

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.

Posted Date: 4/3/2013 2:47:43 AM | Location : United States







Related Discussions:- Static rotor resistance control methods - motor control , Assignment Help, Ask Question on Static rotor resistance control methods - motor control , Get Answer, Expert's Help, Static rotor resistance control methods - motor control Discussions

Write discussion on Static rotor resistance control methods - motor control
Your posts are moderated
Related Questions
Find the current through each resistor for the networking below using Mesh Analysis and Nodal Analysis.

If aluminium and copper pipes are of same length and diameter ... same magnet dropped through them...in copper it takes more time to come out of other end, i myself have done this.

(a) Estimate the hysteresis loss at 60 Hz for a toroidal (doughnut-shaped) core of 300-mm mean diameter and a square cross section of 50mmby 50mm. The symmetrical hysteresis loop f

Q. Explain Modulation and sampling? Modulation is the process whereby the amplitude (or another characteristic) of a wave is varied as a function of the instantaneous value of

Q. Consider two 1-C charges separated by 1 min free space. Show that the force exerted on each is about one million tons.

Q.   Define and explain the critical field circuit resistance and critical speed of a DC shunt generator.   Ans. The OCC and R - line for a DC shunt generator. As, R f is

what is difference between scot and delta connection.

how do you get better at school

Questions: a) Give a brief description of the program counter and the data pointer, including their differences. b) Briefly describe what are Byte-Level logical operations

PlZ Explain broooooo ..? What is Miller circuit and bootstrap I have xm tomrow and I am not getting answers soo plz.