mumu
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« on: November 06, 2009, 06:12:41 PM » |
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The Philippine Electronics and Technology Forum
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« on: November 06, 2009, 06:12:41 PM » |
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rdpzycho
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« Reply #1 on: November 06, 2009, 06:14:24 PM » |
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you'll need a contactor. parang relay lang din sila pero built for the high currents you need.
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mumu
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« Reply #2 on: November 06, 2009, 06:27:07 PM » |
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mga magkanu po kaya un?
nid ko po kc ung kaya ung 2 aircon units (hindi ko alam HP heheh pero malaki xD), lights, fan, and a few computer units.
And pereho lang po ba ung circuit needed sa pagdrive high current type sa low current typel?
txn po sa rep ^^
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rdpzycho
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« Reply #3 on: November 06, 2009, 06:38:09 PM » |
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mas mataas ng konti ang needed current sa drive circuit pero parehas lang halos ang circuit na gagamitin. 'di ko alam kung magkano. pero makakakita ka niyan sa mga Electrical shop at surplus. kahawig niya ng itsura 'yung breaker.
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krazeneth
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« Reply #4 on: November 06, 2009, 06:38:26 PM » |
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Whats the best type of relay na pwede ko gamitin?
Any relay will do, more contacts the better. nagiinit po ba ung relay pag buong araw naka-ON? normal lang init nya. may nakita po ako sa wiki na "latching relay", meron po ba ng high current capable nun? As far as I know wala pa akong nakitang mechanical relay rated 40A pero SSR meron na and hindi mo rin kailangan ng high ratings contacts kung sa latching mo sya gagamitin. Just add contactor para sa high current line mo.
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rdpzycho
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« Reply #5 on: November 06, 2009, 06:45:34 PM » |
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merong nasa 30A pero automotive type, 'di rated sa 220V use. 
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mumu
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« Reply #6 on: November 06, 2009, 06:49:03 PM » |
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@rdpzycho
tnx sir ^^ hehe hanap ako. may nabasa pa ko "latching contact". sir may links kb on good read about dito, mga sample project and experiances sa paggamit,,,,, ganun ^^
anyways +1 gawapito point kua tnx po ^^
@krazeneth hehehe ndi p po kc ko nakakagamit ng high current puro low lang, ung mga galing sa kinalag na avr ^^V kaya nagaalala ko sa heat factor ng high current. at xempre ang luge factor pag nasunugan ako ahahaha +1 tnx kua ^^ links din po penge ^^
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mumu
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« Reply #7 on: November 06, 2009, 06:51:30 PM » |
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sana meron nun sa deeco ahihi.... post po ako ulet pag may nabili na ko.... hehehehe pahelp po sa circuit huh ^^V
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Co0LėT♥
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« Reply #8 on: November 06, 2009, 07:00:23 PM » |
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eto ang contactor 
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Simpler designs are usually better.
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krazeneth
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« Reply #9 on: November 06, 2009, 07:01:36 PM » |
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wala akong link pero mabait naman si uncle google kaya mabilis ka nyang matutulungan and advise ko rin na wag mong gamitin ang 100% allowable current ng contacts atleast 80% percent lng para safe and matagal masira.
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rdpzycho
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« Reply #10 on: November 06, 2009, 07:05:44 PM » |
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mukhang nakakatakot at maingay kapag nag-click.  wala akong link pero mabait naman si uncle google kaya mabilis ka nyang matutulungan and advise ko rin na wag mong gamitin ang 100% allowable current ng contacts atleast 80% percent lng para safe and matagal masira.
agree. although may headroom pa rin ang ibang manufacturer, avoid using 100% rated na lang. derating ang tawag doon para safe lagi.  avoid din 'yung small relays kung sa high current high voltage gagamitin. madalas 'di isolated ang contacts nila sa loob (kung 12V to 24V application) kaya pwedeng mag-arc sa loob.  pero merong maliliit na relay na kaya ang 220V at around 10A. typically merong parang plastic na spacer sa pagitan ng independent poles, at mukha siyang vacuum tube na rectangular. 
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louis26
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« Reply #11 on: November 07, 2009, 10:40:38 AM » |
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kapareho din poh ng application namen..magkokontrol kame powersupply ng house using PIC..250v poh ung voltage na icocontrol..nu poh kea ang gagamitin namen?relays lang poh ba or contactor na...kung 120v ac poh ung input ng contactor my relay poh b na kayang mgkontrol ng 120v na low voltage lang ang input? 
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Co0LėT♥
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« Reply #12 on: November 07, 2009, 02:29:35 PM » |
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ganito dapat gawin ninyo... basic connection. 
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mumu
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« Reply #13 on: November 07, 2009, 08:26:53 PM » |
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mga koya ^^ may nahingi ako na contactor hehehe galing sa kono, sa truck scale ata. ahihi. kaso si manong google madamot wala maibigay sakin na natinong diagram ng wiring nito. baka po meron kau jan na alam na guide jan hehehe salamats po
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mumu
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« Reply #14 on: November 07, 2009, 08:27:15 PM » |
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SRC3631-5-1 po pala ung model fuji xa ^^
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mumu
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« Reply #15 on: November 07, 2009, 08:32:43 PM » |
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 ganito po itsura nya. wala ako camera eh kaya sa ebay muna ko kumuha mga kuya pahelp po sa wiring tnx po meron po xa 5 pairs ng terminals sa taas. and 1 pares sa baba. mga ganu po kaya ung nid ko para idrive to...
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« Reply #16 on: November 07, 2009, 09:09:30 PM » |
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Fuji Electric - Magnetic Contactor, 4N.O. 1N.C. ,120VAC
look at my diagram above... that is industry standard. lagyan mo lang ng RC or varistor ang relay contact.
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mumu
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« Reply #17 on: November 08, 2009, 08:02:40 AM » |
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 eto po ung nakuha ko may agiwagiw pa  sa coil voltage po 220 nakalagay. ok na po ba dito as trigger ung mga songle na relay 7 amps nakuha ko sa avr  ? kung maghapon po naka ON ung relay ok lang po ba un? ndi naman xa magiinit o masisira? tnx po
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mumu
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« Reply #18 on: November 08, 2009, 08:03:17 AM » |
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wew ang laki pala ^^
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mumu
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« Reply #19 on: November 08, 2009, 08:05:16 AM » |
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 eto pa po ung isa kso 16A lang.
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