how to calculate the cable size for 500 kva transformer?

Answer Posted / ezhil

the full load amps of 500kva transformer is
kvax1000 / 1.732 x v
500x1000 / 1.732x415
500000/719 = 695A
Hence we can select 2R X 3C X 300SQMM

Is This Answer Correct ?    15 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

why on axial hitting up of air blast on hydrogen produced in oil circuit breaker,temperature rises of the core of the arc?

1455


what are factors to be consider to design a HT & LT motor?

1808


What is the different between digital phase converter and ordinary phase converter?

651


how could we know the size of cable by physical view?

1205


how we explain parallel paths armature winding?

1449






Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?

1350


the grid connection required for a 50 MegaWatt fotovoltaic powerplant is higher or lower than 35kv (high or medium tension)?

1430


Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?

1699


For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

1460


how braking & making capacity of circuit breaker are calculated?

1845


what is cathodic protection and why it use in industries?

1744


Metal covered multiconductor cables shall employ a marker tape located within the cable running for its complete length in lieu of cable surface marking. Is it true or false?

1729


what is the voltage between earth & neutral in 3 phase electrical connection.

1455


How 48-relay (incomplete sequence) functions?

3544


What are marginally stable systems?

664