Answers were Sorted based on User's Feedback
Answer / saroj kanta nayak
When a high or 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 ?||280 Yes||21 No|
Answer / dinesh kumar
A bluish flame and hissing sound appeared on outer conductor
of a transmission line due to atmospheric moisture is
termed as corono
|Is This Answer Correct ?||201 Yes||55 No|
Answer / munesh
A voilet glow, hissing noise and the production of ozone
gas on the condustor is called CORONA.
|Is This Answer Correct ?||128 Yes||44 No|
Answer / ashish
It generally occure at high voltage transmission. When
dielectric voltage becomes more than 30v\cm . than it
ionise the sorrounding air . 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 !
|Is This Answer Correct ?||68 Yes||8 No|
Answer / a.kossay
corona appears due to the ionizing of the surronding air
due to the electromagnetic fields surronding the cable it
has two names dark corona and corona and it a appear as
redd bluish glue it has adv and dis adv.
|Is This Answer Correct ?||49 Yes||14 No|
Answer / mohammad harunur rashid
The phenomenon of violet glow,hissing noise and production
of ozone gas in an overhead transmission line is known as
|Is This Answer Correct ?||36 Yes||7 No|
Answer / daher
it generally occure at high voltage overhead transmission
lines,when the dielectric voltage becomes more than
30v/cm.the the surrounded air becomes ionized meaning
conductive and hissing noise issued due to the saturated
air by electronic, and a violet color could be seen.their
are some advantages of this phenomena we can get,one of
theme in cold region while the ice accumulate over the T.L
the heat that emitted due to the accident of electronic
dissolve the ice otherwise may the WEIGHT OF T.L becomes so
heavy and break the structures of the O.H.T.L.
|Is This Answer Correct ?||35 Yes||17 No|
Answer / physics
when air is passed through conductor having high electric
field, velocity of electrons increases so this electrons
collide with other atom and leads to ionisation in air at
certain stage breakdown occur between the conductor with
some violet glow which produce ozone gas with some hissing
|Is This Answer Correct ?||20 Yes||8 No|
Answer / khilendra pant
When the voltage is high enough, electrons are attracted to
lower potential) with sufficient energy to ionize air. It
is this breakdown
that produces the corona.
|Is This Answer Correct ?||8 Yes||1 No|
Answer / sangita chattoraj
When violet glow with a hissing sound and ozone gas is
produced in an overhead transmission line, the phenomenon
is called corona effect
|Is This Answer Correct ?||8 Yes||2 No|
Basic motor transformer generator
What is the minimum load that you can keep in a 3 Phase 40 KVA Diesel Generator? Is it neccessary to load all the 3 phases? Can a phase be left without load?
We have two 1 phase heating coils having same resistance of 25ohm, but during operation one takes 3A and other 6A Is it posiible Pls. explain
Dry type transformers
What happens to a line-frequency of high-frequency transformer when it is first energized/ re-energize?
difference between over current and over load protection?
how can we measure 220kv or more than these voltages ...?and also how can we conform whether we r getting 220kv from generating stations throuth the h v transmission lines?
How the Oil Surge Relay works? How it protect the OLTC?
Pleasd Tell Me..... In Generating Stations Why The Generation Of ELECTRICITY Is In 3 Phase Form?? OR In Generating Station Why We Generates The ELECTRICITY In The 3 Phase?? Why Not In The 4 Phase, 5 Phase Or 6 Phase Form??
we can conformed the vector group of the transformer. How?
Why 11KV/440V distribution supply use for Domestic use?
Why is a synchronous motor always star connected??