We have isolation transformer 25kvA & ONLINE UPS 15KvA
(3PHASE I/P,3PHASE O/P)where isolation should have
connect,before UPS or after please brief.
Answer Posted / thowsif_emerson
It should be connect before the Input Filter of the UPS..
Pls have a look on this Circuit Diagaram:-
http://www.tpub.com/content/doe2/spec3021/spec30210047.htm
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?
How can we choose the rating of submersible motors
Why ground terminal is used in pot meter 10k ohms
In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?
Why armature rheostat is kept in maximum position?
what is auto re-closer?
why is control bus bi-directional?
There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?
What are the effects of electrical faults?
What is speed mode?
Dear all, how we select the cable size according to current with or without including different correction factor , is there any direct method for sizing of cable...
Why collecting electrode of ESP to be earthed
What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?
If 24 KVA AVR having Input voltage 200-400v, Output voltage 415+-1%, what will be the voltage if Load is 13A.