Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / debashisdb
Most Industrial drives have variable speed application
(fans, pumps) where the initial speed of the load is
normally very low and increases gradually.
The induction motor used for the purpose will have
specified starting torque & speed as per the torque-speed
curve of the motor. The speed is normally very high
compared to the load requirements at start. So by vfd it is
possible to control the speed of the motor according to the
loading requirements.
Since Power is proportional to cube of speed, control of
speed saves a lot of power requirement.
| Is This Answer Correct ? | 13 Yes | 2 No |
Post New Answer View All Answers
How isolater function when installed inelectrical 440V wiring
What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.
is it possible to test of bus bar in high rise building without completed full floor ?
As we know induction squirrel cage motor torque Directly praprortinal to applied voltage in star connection & delta also. If I connect 55KW Motor to DOL starter in load condition does motor withstand the load & what will be the current withdrawn ? motor will not fail ?
What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
Transformer cores are laminated in order to A simplify its construction B minimize eddy current loss C reduce cost D reduce hysterisis loss
sir, i am 3 years diploma course pass out candidate.what type of certificate can i got in marine service.
Inverter. converter. Ups.MCB.solar.alternators. motors.
can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh
main difference between ac and dc?
what is the star delta connetion and how can do it a three phase motor with control witing with picture
The electromagnetic torque developed is proportional to what in a D.C series motor?
What is meaning of out of phase (making & breaking) capacity And how to calculate
