If a 3 phase transformer is a 500 kva using the formulae
500kva= 500000/433 x 1.732 = 666.71amps does this mean that
each phase on the secondary side is 666.71

Answers were Sorted based on User's Feedback



If a 3 phase transformer is a 500 kva using the formulae 500kva= 500000/433 x 1.732 = 666.71amps d..

Answer / k.prakashchandra

The VA per phase is (500/3 KVA) 166.67 x 1000 , phase
voltage is(433/1.732) 250 V.Then current in each phase is
166670/250= 666.68 A

Is This Answer Correct ?    8 Yes 4 No

If a 3 phase transformer is a 500 kva using the formulae 500kva= 500000/433 x 1.732 = 666.71amps d..

Answer / shyam

The value 666.71 A gives the current rating i.e the maximum
current that the transformer secondary winding (each phase)
can withstand.The operating value may be less than or equal
to this RATING...

Is This Answer Correct ?    0 Yes 0 No

If a 3 phase transformer is a 500 kva using the formulae 500kva= 500000/433 x 1.732 = 666.71amps d..

Answer / lalit pratap

Yes It's caring 666.71amps on each phase on secondary winding in transformer.

Is This Answer Correct ?    0 Yes 2 No

Post New Answer

More Electrical Engineering Interview Questions

wts d diff b/w C.T. & P.T.?

9 Answers  


what is meaning of sympathetic tripping with respect to relays and give the values for current carrying capacities for copper and aluminium cables from 16sq mm to 500sq mm

1 Answers  


what is restircted earth fault relay,how it works? what is diffrance btwn normal earth falut relay & restricted earth fault relay?

1 Answers  


Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??

0 Answers  


What is the knee point voltage of CT-100/5,15VA,5P20 ?

3 Answers   ERL, NTPC,






what is difference between ac1 and ac3 contactor and why it is needed to be selected?

1 Answers  


132/66kv sub-station procation ?

0 Answers  


why Square root 3 used for three phase?

2 Answers  


Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............

0 Answers  


160 kw motor running use 2R* 150 SQ mm cable

0 Answers   ID,


What is auto reclose system in Circuit breakers

1 Answers  


can we synchronize star system generators with delta system generators?

2 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4452)
  • Electrical Engineering Interview Questions Electrical Engineering (16638)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)