Interested to Buy Any Domain ? << Click Here >> for more details...
What are the starting currents of different motors and also
what are the running currents, and idle currents?
- 6 Answers
- 13507 Views
- I also Faced
- E-Mail Answers
Answer Posted / dharababu
IN MOTORS THE EQUATION FOR BACK EMF IS GIVEN BY
Eb=V-IR,
SO ARMATURE CURRENT I=V-E/R
AT THE TIME OF STARTING THE STATOR FLUX WHICH PRODUCES BY
SUPPLY,WILL NOT LINK WITH ROTOR AND THERE IS NO BACK EMF
PRODUCES IN ROTOR I.E I=V/R.
AS THE RESISTANCE OF ROTOR WILL BE VERY SMALL , THE
STARTING CURRENT WILL BE VERY HIGH .
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
what is the maximim current drawn by 1 phase and three phase welding machine
What is method of calculating the fault current for a MDB, 50KW, 3PH, 415V, 50HZ?
how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take
Atwhat condition reverse power relay will act?
Why do we use copper cable for HT Supply and why not Aluminium?
The power supplied to a 33microF capacitor from a 120V, 60Hz source will be
What is the effect of positive feedback on the stability of the systems?
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
Hi, This is Laila. I am selected for syndicate bank interview. Could you please share your views and the questions asked if you have faced the interview My email id is laila_honey09@yahoo.com Please send as fast as u can.Thank You Thanks... Laila.
What is servo motor and what are different types of servo motor
What are the various types of BUSBAR Schemes? explain each
what are factors to be consider to design a HT & LT motor?
how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you
What is the unit of magnetic flux density?
on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help
