Performance equations of three phase induction motor , Electrical Engineering

Assignment Help:

Performance Equations of Three Phase Induction Motor

When balanced 3-? voltages are applied to the  stator  winding  a rotating magnetic field  of constant amplitude is produced in the air gap. The speed of this rotating  field is given by .

The rotating flux  wave  cuts  the stationary rotor  conductors and  therefore  emf are induced  in the rotor  conductors. As  the  rotor  circuit is short  circuited these  induced emfs  give rise  to current  in the rotor  conductors. The interaction of these  rotor  currents  with  rotating  flux  wave produces torque in the rotor of a  3-? induction motor  and as a consequence rotor  begins to rotate. According  to len law the develop torque must oppose the cause by which  it is produce i flux  cutting  action. This is possible  only  if  the developed  torque forces the rotor  to  rotate  in the direction of rotating field. Due  to this  the relative speed  between rotating flux  and rotor  conductors  is reduced and therefore  the flux  cutting action also gets reduced. This  relative speed between  rotating flux  wave and rotor.


Related Discussions:- Performance equations of three phase induction motor

How is energy stored in a capacitor, Energy stored in a capacitor Durin...

Energy stored in a capacitor During charging process by capacitor, it will get energy. Energy is stored in static form. The voltage in capacitor will enhance from 0 volt to E v

project, I want to make project plz help me n gove me idea about actually ...

I want to make project plz help me n gove me idea about actually its my first year in electrical engineering thts why Ineed help hpfully you will reply soon

Image enhancement, Explain briefly the operation, draw the functions, formu...

Explain briefly the operation, draw the functions, formulas and observations. (i) Write an m-file "imnorm.m" which takes an image finds min and max values and uses them to nor

D flip-flop - latch or delay element, Q. D flip-flop - latch or delay eleme...

Q. D flip-flop - latch or delay element? The symbol for the clocked D flip-flop is shown in Figure (a), in which the two output terminals Q and ¯ Q behave just as in the SRFF,

Off line ups system - power supplies , Off line UPS System Again the tw...

Off line UPS System Again the two  switches  are used in this  type of ups  as online  ups. The difference  is that  here  the main  static  switch  remains normally  ON and UP

Draw the circuit of a 7805 voltage regulator, Q. Draw the circuit of a 7805...

Q. Draw the circuit of a 7805 voltage regulator? Explain the functions of the capacitors used at its input and output sides. Functions of capacitors used at input and outp

Sections construct in fortan, Q. Sections construct in FORTAN? The sect...

Q. Sections construct in FORTAN? The sections construct is a no iterative work sharing construct which causes structured blocks to be shared among threads in team. Every struct

Microprocessor, Memory map of tpa in a personal computer and explain such o...

Memory map of tpa in a personal computer and explain such of the areas in brief

Microprocessor, distingish between maximum and minimum modes of operations ...

distingish between maximum and minimum modes of operations of 8086 with timing diagrames

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