Armature winding - motor control , Electrical Engineering

Assignment Help:

Armature Winding

In this  winding the working  emf is induced by the working  flux.

The current  which is  dependent on the load  called current.  The windings  that handles only exciting current  is called  field winding. Current in fields  windings is  always DC. It is also  known  as fields current  of magnetizing current. It  produces only a working  magnetic  flux. It is independent to load. Armature winding  carries only  load current.

Before  discussing the  methods  of speed  control  of DC  motor  it is important to know about  the classification of DC  motor. According to  excitation of the  filed self excited DC motor further  divided  into three types Dc series motor  shunt  motor and DC compound  motor.

965_armature winding.PNG

                                                              Figure  DC Motor Separately excited(b)  Shunt (c) Series (d) Compound

The commonly used DC  motors  are shown  in  separately excited  motor the  field and armature voltage  can be controlled independent of each other. In  a shunt  motor field and armature are connected common  source. In case of  a series  motor fields current is  some as armature current and  therefore  fields flux  is a functions  of armature current. In  a compound motor  the mmf  of the  series  fields is  a functions  of armature current  and is in the  same direction as  mmf  of the shunt  fields.

For  separately excited and  shunt motors it is equal to  the resistance of armature  windings  and for series  and compound motors it is the sum of armature and fields  winding resistances.

 


Related Discussions:- Armature winding - motor control

Alumel and chromel wires (KP and KN), how do i figure up the resistance on ...

how do i figure up the resistance on Alumel and chromel wire stranded .080 dia 19 stands?

Calculate the voltage, 1. The circuit is: A circuit which lights a LED w...

1. The circuit is: A circuit which lights a LED when a voltage is above 14 volts and flashes the LED (at about 1 Hz) below 10 Volts. The circuit should also continuously sounds

Applications of operational amplifiers, Q. Applications of operational ampl...

Q. Applications of operational amplifiers? An op amp along with a few external components (resistors and capacitors) is capable of performing many different operations-hence th

State diagram for a typical von neumann machine, Question: a) Give the ...

Question: a) Give the instruction cycle state diagram for a typical Von Neumann machine. b) Give two diagrams to differentiate between a Memory and CPU connections. c) Co

Triac - power semiconductor devices , Triac  As the  name  suggests T...

Triac  As the  name  suggests TRIAC  is advice which  has three  electrodes and works  on AC.  The three terminals of triac are MTI ( Main Terminal ) MT2 ( Main  terminal ) an

Cpi compare immediate instruction , CPI Compare Immediate Instruction ...

CPI Compare Immediate Instruction The 8 bit  data  specified  in the  instruction is  compared with the  contents of the accumulator. The comparison  is done by  subtracting

Matlab help, hello i have MATLAB 2013 how can i send and receive files usi...

hello i have MATLAB 2013 how can i send and receive files using Bluetooth

Show the dot convention, Q. For the coupled coils shown in Figure, a dot ha...

Q. For the coupled coils shown in Figure, a dot has been arbitrarily assigned to a terminal as indicated. Following the dot convention presented in the text, place the other dot in

Electrical machine, what happens when we apply DC supply to transformer pri...

what happens when we apply DC supply to transformer primary

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