What type of isolation transformer used in UPS's??
It's Star-Delata Or Delata-Star????Why it is used????

Answer Posted / sam

its Delta and star only

to provide electrical isolation

Is This Answer Correct ?    9 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1583


how to size H.T & L.T Panel ?

1647


how to calculate the tarriff for an industry whose kva demand is 10 mva

1519


we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input

1660


What will happen if we introduce negative feedback to a control system that uses a positive feedback?

682






Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

1566


how oti and wti connections are different from each other?

1600


According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor

1522


Vibromotor 252MV 1/4HP2P..what is mean by 252MV?

1533


what is ic 01,ic 06 ?is it types of cooling?

3790


EXPLAIN METOD OF IMAGE OF TRANSMISSION LINE/ WHAT ARE ITS PRACTICAL APPLICATION?

1425


What is meant by turbo alternators?

656


How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.

1044


Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

654


hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

1440