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

Digital electronics, Digital Electronics: We have study the fundamenta...

Digital Electronics: We have study the fundamentals of Digital circuits. Primary we have studied the mathematics of Binary numbers also called as Boolean algebra and how to im

Explain sampling at the nyquist rate, Explain Sampling at the Nyquist Rate?...

Explain Sampling at the Nyquist Rate? What would happen if we reduced the sampling frequency? In the time domain, we would be getting less samples for each period. In the frequ

Show that any periodic signal is not typically energy type, (a) Evaluate wh...

(a) Evaluate whether the sinusoidal signal x(t) = A cos (2πf 0 t + θ) is an energy-type or a power-type signal. (b) Show that any periodic signal is not typically energy type, a

Masking - immediate with accumulator instruction , Masking As we know...

Masking As we know the MASJ is used  to cover  some part  of our  face  which  we want to hide  and to  show  other part of the face  which  we want to show. Similarly  the

National tariff policy or ntp, National Tariff Policy or NTP In the dr...

National Tariff Policy or NTP In the draft of NTP, it is suggested that although setting the tariff ERC should introduce performance-based cost of service regulations, a clear

Seal management - meter field testing, Seal Management - Meter Field Testin...

Seal Management - Meter Field Testing For an effective seal management system it is necessary that: i) The  seals  used  are  tamper  proof,  that is they  cannot  be  remo

Construction features of electron gun, Compare the application of CO 2 and...

Compare the application of CO 2 and Nd :YAG Laser for cutting operation. Define with a neat and clean diagram the construction features of ‘electron gun' used for preparing an

Armature winding, draw a developed single simplex wave winding havig 17 num...

draw a developed single simplex wave winding havig 17 number of coils and 4 number of poles

Clipper, how to write kvl equation in series clipper circuit without any ba...

how to write kvl equation in series clipper circuit without any battery

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