Why is the diffrential protection in DG. What if the CT
polarity is reversed while connecting for the same type of
protection? How polarity can be made ok?
WHAT IS SEMICONDUCTOR? EXPLAIN DETAIL. FOR EXAMPLE TAKE A
PENCIL.THE LEAD IS MADE UP OF GRAPHITE IT IS A
CONDUCTOR.THE OUTER COVER IS MADE UP OF WOOD IT IS
INSULATOR.PENCIL IS A SEMICODUCTOR MATERIAL.
in single phase we get 220 volt and in three phase 4420 v
why this
second Ques= in case three phase star conection our
neutrul becom disconect what happan
3 Q=== a three phase house load and have unbalce load on
different pahse diffrent current eg phase a 7A b 8A c
5A and voltage is 440 than how calculate it total load in
kw pl give formula thanks
how to manage interview fear? and speak in english?
22
hello friends..... any one have papers or any study
materials?sail ,hpcl...?
40
what is difference between candidate key and alternate key
233
What is the ratio of Booster transformer?
62
Proviiding the Dedicated N earth and individual Body Earths
,Finally these all looped /Now my Question :- will it not
harm in case of Transformer Fault current flows in Dediacted
N Earthing to Looped Body Earthing.
77
Hello Friends
I had my ONGC test today,but it was very bad.But I would
give certain suggestions so that u may not face he problem
which i had.
Be thorough with Electrical Technology.Generators.motors
stators etc.There are 5 questions on that.
There were also good no.of questions from Hydraulic machine
and Production technology.
Then 3 from Strength of materials.And remember the
dimensional quantities.
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