How to calculate VCB current rating for 2000 KVA transformer



How to calculate VCB current rating for 2000 KVA transformer..

Answer / k. kannan

Power=1.732*415*I
I =2000000/1.732*415
I=2782.5 amps

Vcb =I=2000000/1.732*11000
I=104.97 amps=I=105 A


Suitable VCB 125 AMPS

Is This Answer Correct ?    7 Yes 16 No

Post New Answer

More Electrical Engineering Interview Questions

what is cogging and crawling

0 Answers   Suzlon,


how the percentage impedance affect the transformer loading when connected in parallel.?

1 Answers  


If in a 3 phase supply if the load current is 200A what value of current the each phase R,Y & B will carry?

5 Answers  


What is the function of trip neutral close switch?

11 Answers  


why the undervoltage relay's interlock is used in earthswitch closing operation of the 400kV line scheme?

2 Answers  






how much leakage current is allowed in MC61A L&T make relay?

0 Answers   Siemens,


why we grounding the neutral of a transformer?

3 Answers   GAS,


What difference between voltage and current

5 Answers  


How to Calculate 11 KV Side Cable size of a 250 KVA Oil cooled transformer

2 Answers  


how to find out capacitor range?

2 Answers  


what is the difference between OD and VL

1 Answers   Bescom,


iam completed my DEEE in eillm university. can i get the c licence in tamilnadu its possible or not

1 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • 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)