Interested to Buy Any Domain ? << Click Here >> for more details...
we are using three transformer 33000/430 vac for three
separet block.all three transformer have three LT panel
separetly. can be Interconnected all three panel through bus
coupler. this is permissable or not by state electricity board.
- 4 Answers
- 6299 Views
- Piramal Healthcare, I also Faced
- E-Mail Answers
Answer Posted / sgthakur
Obviously ths is permissible.
1. carry on the PI test of each trans.It should not be less
than 2.00
2.Kva rating must be same
3 Percentage impdence must be same if diff .,parallaling
can be done but trans load shsring may be diff.
4 vector Gr.must be same
5If the Trans. HT source coming fr. diff. source, before
connecting them parallel phase ballancing and phase
seq.test must be done.
6.Other paralling condn. ie freq., voltage must be same as
usual.
7. On LT side trans. tape must be kept in same pos.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What do you mean by passive circuit elements and why these are called passive?
What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.
What kind of preventive maintenance are there for transformer?
What is milivolt dop test in Busducts? What is its significance & procedure to do the test?
why the voltage and current in a long transmission line are called travelling wave?
can you plz send l&t aptitude questions if available its urgent plz plz plz
what is a synchronizing lamp ?
why the India electrical supply transmission loss is high when compare to us
What is the vector group of a transformer,how can it be found out?
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.
WHY IL=IPH IN STAR AND WHY IPH=IL/1.732 IN DELTA? WHAT IS REASON BEHIND IT?
What is the basis for framing the rules of block diagram reduction technique?
What is the main cause of magnetism?
What is clock position of Transformer?what are the clock positions are there?and what is different of them?
