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Author Topic: Differentiate Between CORONA EFFECT and SKIN EFFECT...  (Read 522 times)

Offline webscatter

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Differentiate Between CORONA EFFECT and SKIN EFFECT...
« on: May 28, 2010, 05:03:23 PM »
Differentiate Between CORONA EFFECT and SKIN EFFECT....


Based on your active practice and experience nyo...pakishare naman ang mga ito...



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Differentiate Between CORONA EFFECT and SKIN EFFECT...
« on: May 28, 2010, 05:03:23 PM »

Offline ivANALOG

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Re: Differentiate Between CORONA EFFECT and SKIN EFFECT...
« Reply #1 on: May 28, 2010, 05:26:17 PM »
ang skin effect po ay kung saan ang AC ay nagcoconduct along the surface ng conductor, especially po at high frequencies, the result is, lower effective cross sectional area of the conductor which also contributes to higher resistance
[R= {(rho)(L)}/A], at tumataas po ang loss dahil dito, kaya minsan AC at high frequencies ay gumagamit sila ng conductors na narrow tubes para tipid na rin sa material at weight (anyway, sa surface naman yung conduction).
sa corona effect naman po ay yung discharge sa surface ng conductor pag nagreach ng certain limit yung voltage (not sure). :)
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Re: Differentiate Between CORONA EFFECT and SKIN EFFECT...
« Reply #1 on: May 28, 2010, 05:26:17 PM »

Offline rdpzycho

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Re: Differentiate Between CORONA EFFECT and SKIN EFFECT...
« Reply #2 on: May 28, 2010, 06:38:21 PM »
^ tama. ;D plus meron pang proximity effect kaya gumagamit din ng multiple strands na narrow wire. sa Power Electronics, Litz Wire 'yung ginagamit sa transformer, or thin copper strips. sa RF naman at microwave, kailangan well though ang plating ng PCB, sa plating na lang kasi halos gagapang 'yung current. so kung gold plated, typically meron pang nickel plate bago 'yung gold, kaya sa gold at part nickel lang talaga tumatakbo 'yung kuryente.

corona discharge naman sa HV. experienced buring breakdown of air or any fluid. this can happen even at DC. malakas din ang EMI nito. naalala ko nung nag-ESD test ako dati, tuloy-tuloy na discharge, nagri-ring 'yung bell ng breaktime at nababago 'yung oras. hehe.
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Re: Differentiate Between CORONA EFFECT and SKIN EFFECT...
« Reply #2 on: May 28, 2010, 06:38:21 PM »

Offline subzer0

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Re: Differentiate Between CORONA EFFECT and SKIN EFFECT...
« Reply #3 on: May 28, 2010, 07:19:08 PM »
sample ng skin effect yung antenna ng tv natin at bakit aluminum na hollow para magradiate yung electrons due to High Frequency.



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Re: Differentiate Between CORONA EFFECT and SKIN EFFECT...
« Reply #3 on: May 28, 2010, 07:19:08 PM »

Offline pintac

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Re: Differentiate Between CORONA EFFECT and SKIN EFFECT...
« Reply #4 on: May 28, 2010, 07:39:46 PM »

Corona effect po usually occurs sa mga High Voltage or High Tension conductors. May mga Thrermal/Corona Camera na makikita nyo yong Radiated heat at Electromotive Induction ng mga HV transmission lines.

Philippine Electronics Forum

Re: Differentiate Between CORONA EFFECT and SKIN EFFECT...
« Reply #4 on: May 28, 2010, 07:39:46 PM »

 

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