I am a electrical engg. diploma holder,applied for junior
engineer (electrical),Kolkata RRB.
Have I to attend all electrical,mechanical&civil portion in
why impedance relay is used for medium transmission line
What is the most accurate way of testing ELCB?ELCB is
better than RCD?
WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V
DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV
BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE
CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT
Why derating factor os applied on Cables?
can any one tell me about the Extra low voltage systems?From
where we give supply to these type of systems??
What is purpose of reactor?.What is different between line and bus reactor?
what is meant by rotating magnetic filed
draw vector diagram and +ve,zero sequence
diagram of symmetrical three phase fault.
What should be the percentage increase in length of the dead
end clamp for bus bar conductor (Hawthorn) after hydraulic
pressing and what should be the applied pressure?
give single line diagram of D.G distribution form alternator
to main L.T panel?
2- What are the percentages between excitation currents in
phase (R, S and T) in ∆ and Ỵ connections in excitation
Current test in transformers?
what is Different between Bilinear and Unilenier?
please give me solution to rectify the emi(electromagnetic
how can i use REF and
diffrencial relay both in 1
CT core for transformer