hello, I need to know exactly what happen in the motor
while it is connected to the (star/delta) starter,
mechanical and electrical. Thaks for answering
- 3 Answers
- 4612 Views
- I also Faced
- E-Mail Answers
Answer Posted / mujeeeb
ACCORDING TO MOMENT OF INERTIA ,THE MOTOR WHICH WAS AT
REST TAKES MORE CURRENT TO START IT TAKES ABOUT SIX TO
SEVEN TIMES THE NOARMAL SO IT DRAWS MORE CURRENT ON ACCOUNT
IT TAKES MORE AMOUNT OF REACTIVE POWER SO THERE WILL BE
MORE BURDEN ON LINE SUPPLYING THE VOLTAGE TO THE MOTOR.SO
WE GO FOR THE STATERS TO REDUCE THE STARTING CURRENT TAKEN
BY MOTOR,IN STAR DELTA STARTER THE STARTING CURRNT IS 1/3
TIMES OF THE CURRENT TAKEN IN DELTA CONNECTION AT
STARTING ,SO WE START THE MOTOR IN STAR AND AFTER SOME TIME
IT WILL AGAIN RUN IN THE DELTA.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
how can calculate 1kva generator running time in 1 liter keroscene
where the lexical paramater will use in fron end?
what is mean by transition resistance of transformer?
How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.
how we explain parallel paths armature winding?
What are conduct on the testing in cf in ur site?
please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com
how to calculate the lightning arrester conductor @ no of earth pits required
what is diff. between earthing grid,earthing mess, earting grid?
why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?
WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?
What are the different types of transformers?
in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?
In Power cable specification what is U0/U and Um.
Can i replace Earth leakage relay to the faulty Earth Faulty Relay
