shivakumar kinni


{ City } bengaluru
< Country > india
* Profession * engineer-engineering & design
User No # 52607
Total Questions Posted # 0
Total Answers Posted # 1

Total Answers Posted for My Questions # 0
Total Views for My Questions # 0

Users Marked my Answers as Correct # 18
Users Marked my Answers as Wrong # 3
Questions / { shivakumar kinni }
Questions Answers Category Views Company eMail




Answers / { shivakumar kinni }

Question { Alstom, 21903 }

I HAVE A 1 MVA TRANSFORMER, I WANT TO KNOW THE FAULT LEVEL OF
THE SYSTEM ( WHAT IS FAULT LEVEL PLEASE EXPLAIN WITH EXAMPLE)


Answer

1 MVA, 11/0.415kV Transformer

Full load current= 1000000/(1.732x415) = 1391.24A

% Z(Impedance)=5 (As per IS 2026 for transformer ratings of
0.631 MVA to 1.24 MVA)

Fault current= IFL/%Z =1391.24/0.05 =27.824 kA

Is This Answer Correct ?    18 Yes 3 No