Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / sabaris
Normally motor takes current at the time of starting is three times of full load current.at this starting time there is no presence of back e.m.f. to compensate this effect of current.so,this much current will affect the motor windings results overheating... due to this we use starters to reduce the starting current at the time of starting..In running say 80% of its speed the back e.m.f. will generated.on that time the full vge is applied to the motor terminals to run its rated speed.
there are many starters are available depends upon the type the motor construction... i.e. star-delta,rotor resistance,autotransformer,2 point and 3 point starters,etc....
| Is This Answer Correct ? | 10 Yes | 3 No |
Post New Answer View All Answers
Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.
why r we using shell transformer for low voltage
why not starting switch first connect in direct on line starter?????
what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?
distribution is maximum done by a)radial b)network c) parallel d)b & c
How to calculate flow of water delivered by pump when pressure & size of pipe line is given
why can the rotor of 3 phase slip ring induction motor not be a 2 phase rotor?
what is the best method of grounding in 30 MW generator?
What is transient Phenomenon?
working of diesel generator ?
What is the Surge suppresor? Why using in a UDB's and How it works?
The height to which the liquid in a tank to be maintained for a certain constant velocity?
For an induction motor wat is the loading/unloading cycle duration or interms of L/UL ratio/ percentage?
why booster transformer is used in sumpners test conducted on transformer????
how ct burden,magnetising current,ratio and knee point voltage are related & derived
