Answer / ashwin g reddy

AC motor works on the principle of induction..
The windings in the ac machine are wound either is delta or
star wound. ( ac machine windings )
Only if there is a rotating magnetic field we have an emf
being induced and hence the current.
So only when these current carrying conductors are placed in
the magnetic field, there is a torque!

So if we give a dc supply.. no emf hence no current and
hence no motion! Its in stand still position!

Answer / dilip dixit

AC MOTOR WORKS ON PRINCIPLE OF MUTUAL INDUCTION WHEN WE
GIVE AC SUPPLY TO THE MOTOR IT PRODUCE ROTATING FIELD OF
120 DEEGRE HENCE ROTAR ROTATE TO THE PROPOTIONAL OF FIELD &
BACK EMF GENERATES SO CURRENT WILL BE LIMITING . IF WE GIVE
DC SUPPLY TO THE MOTOR THERE IS NO FREQUENCY IN DC CAUSE
MOTOR BURNT DUE TO ABSENCE OF BACK EMF.

Answer / sehgal

AC motor works on the principle of induction..
The windings in the ac machine are wound either is delta or
star wound. ( ac machine windings )
Only if there is a rotating magnetic field we have an emf
being induced and hence the current.
So only when these current carrying conductors are placed in
the magnetic field, there is a torque!

So if we give a dc supply.. no emf hence no current and
hence no motion! Its in stand still position!

Answer / kapil n.bahadure

The ac motor work on the principal of mutul induction.when
ac motor connect on dc supply,then donot produce mutul
induction by dc supply.becouse not pressent frequency in dc
supply.so motor is not rotate. the impedance of motor very
low by dc supply,so motor burnout from dc supply.

Answer / ramesh

Regarding to the concept of ac the generated flux can cuts
the line of forces & produces rotating magnetic field.with
differencing to voltage to current angel between two motor
windings ,but in Dc there is no frequency possessed for
creating rotating magnetic field the winding are burns

Answer / sanjib kumar harichandan

in dc supply rotating magnetic will not create so it cannot
work on dc supply.

Answer / faisal

It will work byvthe magnetic fields if the motor and currents

Answer / pandu

the motor will burn

Answer / pandu

the motor windings are burn

Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.

0 Answers   ARDE,

Hello sir i m student of gtu .what is idp.

0 Answers  

Hi everyone, I'm Lachuu, recently joined automation company as PLC Engineer. I have certain basic question, I request all big gurus and seniors to answer these question. Because this will be very helpful to me as well starters like me. How to design a control circuit (ex: pick & place - my current project) Yamaha robot PxYx series controller RCX222, using 6 cylinder double acting, plc keyence kv p16r 2 expansion unit for input and output each. How to select panel terminal mcb elcb powersupply. My main concern in some projects how to select dc power supply, mcb rcb(I came across dif bt b c d curves, but stil confusing, pls help me :-(. I would really appreciate all who are going respond to this question.

0 Answers  

what is balanced network and unbalanced network

1 Answers   Nalco,

how to calaculate the amps in transformer ?

2 Answers  

working principle of AC Servo Motor with its construction

0 Answers   TATA,

if sf6 gas low in gis what will happen

0 Answers  

1. what type of winding of slip ring ac induction motor rotor and why. 2. how the heating element use in two phase (415 volt)and what rating of element, you prefered.

1 Answers   Simbhaoli Sugars,

How can we deside Short Ckt level of electrical System,Breakers etc.please provide formula to find SC of HV side & LV side

0 Answers  

in transformers for ex. 100mva and 400kv the secondary current is about 420 amps but for selection of bushing the capacity of selected bushing is 2000A why there is such big difference ?

2 Answers   ABB,

WHAT IS SPEC OF CLEANROOM MOTOR AND LIGHT FITTINGS?

0 Answers   Apotex, JLL,

speed of an electric wave

3 Answers