sir,
why alternator output is connected to delta side in to
generating transformer? any reasion?
Answer Posted / raghavendran.r
I believe that it has got something to do with neutralizing of Zero Sequence components in the power system arising during unbalanced condition.
In star, the zero sequence current flows from the neutral to the phases during unbalanced condition.Where as the Zero seq currents wont be able to circulate in Delta connection as it would get cancelled out.
So I suppose that it could be the reason behind such kind of an arrangement.
But do confirm this answer with any other reference.
Is This Answer Correct ? | 1 Yes | 3 No |
Post New Answer View All Answers
im electrical engineer, could any one help me for FEWA exam questions please ?
If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?
what is the common earth
2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?
What is trip and closing coil in cb? Why need of them
What is mean by STUB protection?
DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.
how can i use REF and diffrencial relay both in 1 CT core for transformer protection?
What is the power requirement of tamil nadu for one month?
What do you mean by transformation ratio of instrument transformer?
3phase cable calculation formula by motor load
Show Details FROM:Muhammed Ikram TO:qa@allinterview.com Message flagged Saturday, June 4, 2011 10:07 PMMessage bodyHello all, i want to ask a question to all of you that what is VMM (voltage monitoring module )? how it work,s? i heard somewhere that it compare 1 phase voltage to other phase voltage. but there is also some setting on it. how to set it,s setting. please tell me briefly. Thank,s and Regard,s. Muhammed Ikram.
What is the difference between indoor and outdoor transformer
What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?
Define the overload capacity of the motor?