| Other Electrical Engineering Interview Questions |
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|what are the main Parts of VCB
|how can synchronous generator can be used as synchronous
|What is the Diff. btw Fire Alarm System & VESDA System??????
|why transformer calling in VA rating
|Sir we have 12.5 MVA(110/11KV) transformer (Y-Y)
connected,which tripped showing earth fault,when we charged
transformer it stood OK ,but on connecting 11 KV feeders it
tripped showing earth fault.our service engineers found that
the B phase and R phase phase connecting to neutral broken
from HV OLTC(on load tap changer),and R phase and Neutral is
ok.Dissolved gas analysis shows that accetline content is
high,tan delta value is 12.My dout is it is an internal
fault of transformer,why REF or diffrential relay is not
|What differance between Circuit brekar and Isolater?
|how to choose the cable size for 100A(is there any formula
|why we avoid parallel operation of diesl generator?
|how many transformer
|what is meant by excitation
which supply is used whether ac r dc in the lab
|What happen if LV supply is fed to a HT motor?
|In star and delta
systems , for
driving power and
as well as light
load which one you
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