Answer Posted / meenakshi
3 phase induction motor:
v giv 3phase supply to 3 phase stator winding, rotating
magnetic field running at synchronus speed is
produced.initially rotor is at standstill position (@ zero
rpm).this rotating magnetic field vil sweep over rotor.
thus there is cutting of flux lines. an emf is induced.
bcoz of this emf,a current is induced.now A CURRENT
CARRYING CONDUCTOR PLACED IN A MAGNETIC FIELD PRODUCES A
TORQUE.thus motor runs.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What is the function of interposing current transformer?
What is difference between Sample test and Routine test in safety standard?
what is the reactive power what is the use of it in system
State kirchoff voltage law?
explain the Trip supervision circuit
What will be the current drawn by HT motor, if low voltage is applied.. any formula to calculate the LT amps of HT motor.?
where is the need for short circuit test for 3 see is required and why? can you explain in brief with application
Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com
In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?
We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?
what is interpose? where it is used and why it is used?
On what basis do you decide the ONAN (Oil Natural air natural) or Dry type transformer for a project?
hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /
what is the VA(Volt-amphere)? define with calculation?
I want the details about BHEL company examination.Can anyone able to help me please.
