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Question
what is corona effect?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
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 ?    247 Yes 17 No
Saroj Kanta Nayak
 
Answer
# 2
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 ?    194 Yes 53 No
Dinesh Kumar
 
 
 
Answer
# 3
A voilet glow, hissing noise and the production of ozone
gas on the condustor is called CORONA.
 
Is This Answer Correct ?    119 Yes 40 No
Munesh
 
Answer
# 4
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 ?    59 Yes 7 No
Ashish
 
Answer
# 5
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 ?    48 Yes 13 No
A.kossay
 
Answer
# 6
The phenomenon of violet glow,hissing noise and production
of ozone gas in an overhead transmission line is known as
corona.
 
Is This Answer Correct ?    34 Yes 6 No
Mohammad Harunur Rashid
 
Answer
# 7
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 ?    34 Yes 17 No
Daher
 
Answer
# 8
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
noise
 
Is This Answer Correct ?    19 Yes 8 No
Physics
 
Answer
# 9
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 ?    7 Yes 1 No
Sangita Chattoraj
 
Answer
# 10
When the voltage is high enough, electrons are attracted to
ground (at
lower potential) with sufficient energy to ionize air. It
is this breakdown
that produces the corona.
 
Is This Answer Correct ?    6 Yes 0 No
Khilendra Pant
 

 
 
 
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