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I Think You Should Know This

Some fun facts to make things lighter....
Have you heard of the Corona Effect? No I'm not talking about the virus sweeping the world. This is something related to electric transmission.
During transmission of EHV(Extremely High Voltage), say upwards of 132 Kilo Volts, you'd find a bright bluish purple haze over the transmission towers right where it carries the conducting wires mostly on rainy or humid nights. That's what we electrical engineers call corona. It happens because the extremely high voltage within a short gap between two conductors, causes the air between the conductors to breakdown and become partially conductive. (Air is normally non conductor of electricity but the high voltage over a short gap is able to ionize the air, causing occasional sparks to pass, that's why you get to hear the zooming sound when you walk below a transmission tower). The air on ionization can even release gases like ozone and nitric oxide. It might look pretty but it causes substantial loss in the electrical network unless we take preventive measures like using corona-rings, increasing the space between two wires etc. Here's a picture of it. See if you have ever noticed it. Or next time just keep a look out for these pretty thingies. 馃檪
PfuzylogicM
I have seen this as a technician several times. The first time was while testing points on a voltage going to a magnetron on a Precision Approach Radar that never made it to the Shah of Iran. The vision was hypnotizing and I backed off with the high impedance probe knowing that voltage does not care anything about me personally except for the quickest point to ground! 馃槄
TheIncredibleHulka26-30, F
@Pfuzylogic Correct. You made it sound hilarious but you just saved yourself from a painful death. 馃槄
ABCDEF7M
I guess Tesla coil also works on same principles.
ABCDEF7M
@TheIncredibleHulka First of all, thankyou very much for the effort you are taking for a stranger.

If that's so, why don't my bulb at home stops to glow when there's somewhere neutral wire broken? I need to manually repair it. An possible reason I can think is voltage at home is not that much higher to breakdown the air. And in this case it is too high. Is that so?

And why not that wireless electricity finding the way through that person. He is also connected to same air.

And finally I still not convinced why that wireless electricity choosing only one cfl terminal at a particular point of time. I am really sorry for my ignorance and inability to understand concepts. I hope you are not getting irritated with my questions.
TheIncredibleHulka26-30, F
@ABCDEF7 I didn't get your question involving the bulb. The bulb will stop glowing when the circuit inside breaks, breaking the path of the current.

A person is a poorer conductor of electricity than a metal,unless the person is touching an unearthed metal body,electricity won't flow through his body.


And finally, electricity does flow through both the terminals, but with opposite polarity, the polarity reverses at very frequent intervals (frequency of 50-60Hz mean 50-60 cycles/reversals per second, tesla coils generate higher frequency) which makes no difference at all however you may define your instant.

I'm sorry I did my best in explaining, perhaps this is why we all need teachers and years of dedicated studying on a branch to get proper hold on any subject.
ABCDEF7M
@TheIncredibleHulka Thankyou very much for all your efforts. You helped me with many of the concepts. I will discuss these things in detail with my colleague once the lockdown is over.

Thanks again.
Have a nice time. 馃檪
SW-User
[c=#4C0073]nice .. you do interesting work[/c]
TheIncredibleHulka26-30, F
@SW-User Thanks. 馃檪
This message was deleted.
TheIncredibleHulka26-30, F
@Concretedust Of course. But the ones you're talking about will poorly ionize the air. I'm talking about upwards of 132 Kilovolts, say 400 Kilovolts, 600 Kilovolts. Voltage level at your home is around 440 volts only.
TheIncredibleHulka26-30, F
@Concretedust okay I got it. 馃槄
I thought you were asking for some clarification.
senghenyddM
You see it in those cheap horror films the monster is in the chair and the electrical charge is bringing him it or what ever back to life glad they don't make them anymore suppose they'll be making films of this Lockdown now another cheap horror film.
TheIncredibleHulka26-30, F
@senghenydd 馃ぃ
SW-User
this is cool.. i am an amateur photographer and have used transmission lines as subjects.

i know EEs work in a variety of settings these days.

Are you in academics/research?
manufacturing?
TheIncredibleHulka26-30, F
@SW-User Thanks.I'm in the public service sector.
Tukudo41-45, M
Interesting 馃檪 馃憣 do you know about electronics engineering too?
Tukudo41-45, M
Okay fine. Just I want to know do the electronic data could be split and use?@TheIncredibleHulka
TheIncredibleHulka26-30, F
@Tukudo Idk man. I suggest you get hold of a good book. Thanks. 馃檪
Tukudo41-45, M
That's nice 馃檪. You are welcome and Thanks @TheIncredibleHulka
Moosepantspatty31-35, M
That's so pretty! Is it visible to the naked eye? Or does it need a longer exposure?
TheIncredibleHulka26-30, F
@Moosepantspatty Yes, it's visible to the naked eye, but you'd have to be out on a rainy or humid night to spot it.
Moosepantspatty31-35, M
@TheIncredibleHulka I'll keep my eyes peeled!
HootyTheNightOwl36-40
Is that what is responsible for zapping people in electricity sub stations???
TheIncredibleHulka26-30, F
@HootyTheNightOwl Kind of. The principle is same. High potential (or high voltage), sharp pointy objects like tip of an umbrella in proximity to the wires, and moist /rainy weather and you're sure to get zapped. But that's not Corona Effect. The one with the blue crown in transmission lines that happens due to higher level of voltages is what I was talking about.
in10RjFoxM
Is it the same for spark plugs where we see a blue spark jump ?
TheIncredibleHulka26-30, F
@in10RjFox Exactly!
SW-User
That's too cool
Thanos31-35, M
it looks pretty
SW-User
Thanks! I was able to get some shots under the tower looking up..really interesting lines @TheIncredibleHulka
TheIncredibleHulka26-30, F
@SW-User Always wear a helmet when you go directly under them.
SW-User
Noted! I never thought about that..@TheIncredibleHulka

 
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