I have 30KW Motor Starter Panel, System voltage is 480V, So i have to convert voltage 480 to 220V to give the contactor coil. How i can select control transformer, Which rating transformer i can use this panel, what is the procedure, please tell me.
- 2 Answers
- 4442 Views
- I also Faced
- E-Mail Answers
Answer Posted / santhosh(adityabirla group)
transformer selection calculation
A=KVA*1000/V*1.732
ex: ur amps:36
volts :480
calculate ur KVA
Ans:29.92
selact :30KVA
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.
what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....
why ht motors are star connected?
State thevenin’s theorem?
who can measure the size of power cable?
Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com
Why single phase induction motors are not self starting ?
What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.
what is the ATS .And how it works.
WHY THREE PHESE SYSTEM VOLTAGE APPLIED IN 440 VOLT
Generator,motor and alternator Working principal Please explain easily
I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.
How to calculate per unit impedance of transformer?
Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????
what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?
