Interested to Buy Any Domain ? << Click Here >> for more details...
what will be the motor terminal box connection arrangement
(star or delta). on what basis it decided?
- 3 Answers
- 9056 Views
- I also Faced
- E-Mail Answers
Answer Posted / milinda4p
it may vary depending on the requirement of the
motor(whether high torque or high speed).but for an example
in a 3 phase induction motor where an high torque is needed
the rotor windings are first connected in star to get rid of
the large current(inrush) at the starting. & then after
starting it is set to delta to have a large current (because
then the voltage across a single winding is square root of 3
times that of in star=> square root 3 times larger current
in single winding) (to have a higher torque)
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
.php|
How to calculate multiplication factor in kva example 500kva ans pls ?
What happen to the transformer if the OLTC frequently used for lower and raise occured 50times daily?
What are the application of filter?
can any one tell in easy method for circulating current ??
What is the most accurate way of testing ELCB?ELCB is better than RCD?
What happens when ac supply is given as excitation voltage instead of dc supply
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?
if 3400kw slipring motor rotor shorting done and motor started on mv drive ,what will be the rotor shoring current
what is the Transformer Impedence?How can calculate?
A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.
Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction
PLZ EXPLAIN CORONA,SKIN,BIRD PALE,SPAN,SAG Effects of power cable.
What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.
