Answer Posted / pritam halder
When an extra high voltage transmitted in a
transmission line, due to magnetic effect on the core of
the conductor all most all electronics pass on the surface
of the conductor. So the air outside the conductor surface
becames conducive and looks bluish and due to dielectric
breakdown of air a hissing noise comes from surrounding,
Called as corona !
Due to corona OZONE formation on the outside surface of the
conductor. The effect of this to the power system is called
as corona effect.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the use for cable entry in control room?
What are Contactors? How they works and what its highest rating?
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
how does a submersible pump work..?
how is capacitor bank look like
what is the advantages of having in-built acvvvf (without seperate inverter in the control panel)in the drive system of elevators?
Explain the operation of grid connected central solar inverter ?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention
What is purpose of reactor?.What is different between line and bus reactor?
What is the percentage loss for aluminium wire for HT line more than 11KVa
Load break swicth maintenance procedure.
Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.
how to measure earth resistance of a substation
sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in