Answer / vasudevan

DC has zero frequency. Hence, if DC is supplied then XL
will become zero. That is winding reactance is zero. Hence
winding gets short circuited and they will be burnt
immediately. It may cause severe explosive also.

Answer / sivakumarbsk

winding may burn

Answer / rajasekhar

first of all for an ac motor there must be some alternating
flux if it is constant flux e=0, infinite currn flow

Answer / raja

When dc supply given to the ac motor then it has no rotating
magnetic field so when there is no rotating magnetic field
present in the secondary winding so motor does not rotate,
and primary winding may be damaged due to short cercuit.

Answer / bharath kumar

if dc supply is given to the ac motor as the dc has no
negative cycle and no frequency the reactance part becomes
zero that is XL=0 then there is no winding resistance hence
the winding may burn and the motor may damage

Answer / ajoy boishya

If dc current is supplied to ad motor then the ac motor will move in a to and fro motion the reason behind this is that ac motor has a pair of slip rings which don't change the direction of the current . Hence after on rotation the current through the solenoid will get reversed causing it to turn reverse.

Answer / sree

if dc supply is given to ac motor it will work with less effeciency and sparking at the brushes.
in order to overcome the draw backs we found the ac series motor called universal motor.
universal motor app;trimmer mixiers ,small hp machines

Answer / baisakhi ghosh

as there is no change in current ,flux is constant.so no
back emf

Answer / dfg

dfgdsf

why 3 phase is preferred than 1 phase?

4 Answers   Infosys,

How does a digital electronic meter work??????

0 Answers  

how do you select the ct/pt rating in substation

1 Answers   Apollo, Shreem Electric Ltd, Tata Motors,

How to calcute the cable size for both HT and LT please specify the formula for that Regards Chethan C

1 Answers   Bhel, Student,

why to use freewheeling diode ( diode in revers bias mode) across dc coil

2 Answers  

How servo stabilizer works.

0 Answers  

why h parameter are called as hybrid parameter?

0 Answers  

for ac networks if the voltage wave form is V=Vm sinwt here the voltage Vm=230 for the frequency 50hz then the time period is 0.02 sec then for the time period 0.12 sec what is the voltage

4 Answers  

What is hysteresis loss?

1 Answers   PWD, SPML,

what is meant by poly phase induction motor ? how its operating by single phase or three phase?

0 Answers  

How to calculate the cable size (XLPE)for suitable to 120KW load (if Motor or heaters etc)

4 Answers   SSC,

In more then 1 phase bulb will glow are not?if yes then how it will glow?

2 Answers