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Author Topic: switch and sockets arcs  (Read 965 times)

Offline 'yus

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switch and sockets arcs
« on: April 06, 2008, 02:04:33 PM »
.. madalas pagsinasaksak ko yung tv namin (kahit naka-off pa), nagkakaroon ng "arc" dun sa plug nya..
kahit 'tong AVR ng computer ko, pag-io-on ko, naririnig ko yung arc (dahil kaya sa mumurahin lang yung AVR ko ::))..

question:
hindi ba ito nakakasira ng mga appliances ?  ???
parang hindi 'to safe ah, kahit yung mga switch ng florescent nagkaka-"arc"..  >:(
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switch and sockets arcs
« on: April 06, 2008, 02:04:33 PM »

Offline rdpzycho

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Re: switch and sockets arcs
« Reply #1 on: April 06, 2008, 02:20:11 PM »
majority jan sa appliances may maling design...

yung capacitor after ng rectifier walang current limiting sa pagsaksak (sa iba kasi hindi na pwede yung thermistor lang, laki na ng current)...kaya yung malaking inrush current ang dahilan ng arc-ing...
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Re: switch and sockets arcs
« Reply #1 on: April 06, 2008, 02:20:11 PM »

Offline 'yus

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Re: switch and sockets arcs
« Reply #2 on: April 06, 2008, 02:43:08 PM »
hindi kaya yung inrush protection circuit lang yung naririnig ko sa AVR ko..  ???
(yung mga passive inrush protection circuit gumagamit ng relay)..

paano naman yung mga appliances na walang inrush protection?
like yung florescent sa electric fan, kawawa naman sila..  :'(
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Re: switch and sockets arcs
« Reply #2 on: April 06, 2008, 02:43:08 PM »

Offline rdpzycho

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Re: switch and sockets arcs
« Reply #3 on: April 06, 2008, 02:52:08 PM »
kaya majority sa kanila (lalo na yung murang CFL) nasisira kaagad yung capacitor...

yung mga murang CFL na ayaw nang sumindi, capacitor lang ang nakikita kong sira...

yung electric fan medyo matibay naman...ang madalas kong makitang sira sa electric fan, mechanical parts...hindi na umaandar yung pampa-ikot (papalitan mo lang ng gear, 20 pesos sa may repair shop malapit dito), isang switch na lang ang napipindot, bali yung katawan... ;D though pwede ring masira yung startup cap nila...
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‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
- Rene Descartes

"For every difficult problem there is always a simple answer and most of them are wrong."
- Clayton Paul

Philippine Electronics Forum

Re: switch and sockets arcs
« Reply #3 on: April 06, 2008, 02:52:08 PM »
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