Co0LėT♥
Hydroelectric
 
Pogi/Ganda Points: 362
Offline
Gender: 
Posts: 3330
|
 |
« Reply #20 on: August 24, 2009, 10:20:51 PM » |
|
|
|
|
|
|
Logged
|
Simpler designs are usually better.
|
|
|
|
The Philippine Electronics and Technology Forum
|
 |
« Reply #20 on: August 24, 2009, 10:20:51 PM » |
|
|
|
|
|
|
Logged
|
|
|
|
|
insomartin
Guest
|
 |
« Reply #21 on: August 24, 2009, 10:21:05 PM » |
|
wait... contactor gamit ko for 1hp pataas na motors. kung gusto ko gumamit nang varistor for relay drives.. c0♂Lėt at masters... paano? para hindi ako mag contactor?
|
|
|
|
|
Logged
|
|
|
|
piona
Gas Turbine

Pogi/Ganda Points: 112
Offline
Posts: 2963
earth - evils = heaven
|
 |
« Reply #22 on: August 24, 2009, 10:23:06 PM » |
|
ganito sis para sigurado, bili ka nong contactor na 220V at 4X ang rating sa aircon nyo, nasa mga 300 pesos yata ito, lagay mo ito outside sa box ng serkito nyo, pwede inside sa aircon basta sa labas siya box ng time delay, ang ilalagay nyo inside ang yong maliit na relay yong 5A, Vcc lang, para magdrive don sa 220V na contactor.
pwede na kahit anong controls ang ilalagay nyo sa aircon para safe ito.....
|
|
|
|
|
Logged
|
love without accomplishing the laws, is complicated - sshrekk
|
|
|
Co0LėT♥
Hydroelectric
 
Pogi/Ganda Points: 362
Offline
Gender: 
Posts: 3330
|
 |
« Reply #23 on: August 24, 2009, 10:25:21 PM » |
|
wait... contactor gamit ko for 1hp pataas na motors. kung gusto ko gumamit nang varistor for relay drives.. c0♂Lėt at masters... paano? para hindi ako mag contactor?
relay contact lang sir. kung SSR naman nakaparallel sa output.
|
|
|
|
|
Logged
|
Simpler designs are usually better.
|
|
|
piona
Gas Turbine

Pogi/Ganda Points: 112
Offline
Posts: 2963
earth - evils = heaven
|
 |
« Reply #24 on: August 24, 2009, 10:35:50 PM » |
|
ang problema sa SSRs ay yong heat, dapat nakamount ito sa heatsink, kung minsan mas malaki parin ito kaysa contactors dahil don sa heatsink na kailangan saka medyo may kamahalan.....
|
|
|
|
|
Logged
|
love without accomplishing the laws, is complicated - sshrekk
|
|
|
piona
Gas Turbine

Pogi/Ganda Points: 112
Offline
Posts: 2963
earth - evils = heaven
|
 |
« Reply #25 on: August 24, 2009, 10:43:36 PM » |
|
sa Hi-Speed switching na hindi kaya ng contactors okay ang SSRs ...
|
|
|
|
|
Logged
|
love without accomplishing the laws, is complicated - sshrekk
|
|
|
marcelino
Moderator
Solar Power Satellite
   
Pogi/Ganda Points: 247
Offline
Posts: 5861
...keep moving forward! - Robinson's
|
 |
« Reply #26 on: August 24, 2009, 10:44:40 PM » |
|
meron din ako nyan... kaso mas mababa tuloy yun rating... at di ako marunong gumamit ng SSR... hehehe eto nga o:  parang UVER naman kung contactor... hehehe iniisip ko kasi, yung mga nabibiling power-on-delay na ginagamitan ng 555 timer, relay lang ang ginagamit. pero tumatagal din di ba? (555 timer na 5mins daw... pero may nagreklamo dito, 20 mins bago naswitch-on) Sis, di ba talga pwedeng isabay sa PCB ang 220V kahit theoretically isolated naman. magkatabi nga lang.... eto yung initial na pcb design ko. di ko pa alam na dapat may RC or varistor sa contact part. actually, 7mm na ang width nyan kaya inisip ko na ok lang... 
|
|
|
|
|
Logged
|
"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
|
|
|
piona
Gas Turbine

Pogi/Ganda Points: 112
Offline
Posts: 2963
earth - evils = heaven
|
 |
« Reply #27 on: August 24, 2009, 10:51:21 PM » |
|
medyo malapit yong 220V contacts sis, pero try nyo lang.....reinforce nyo lang ng solid wire yong trax ng 220 para hindi ito uminit o di kaya masira pag-nagloko ang aircon.
|
|
|
|
|
Logged
|
love without accomplishing the laws, is complicated - sshrekk
|
|
|
|
insomartin
Guest
|
 |
« Reply #28 on: August 24, 2009, 10:57:55 PM » |
|
sayang yung use nang mcu. dapat yung may power on electric fan after air con. hihihi. (the more you have the more you need)
|
|
|
|
|
Logged
|
|
|
|
marcelino
Moderator
Solar Power Satellite
   
Pogi/Ganda Points: 247
Offline
Posts: 5861
...keep moving forward! - Robinson's
|
 |
« Reply #29 on: August 24, 2009, 11:02:49 PM » |
|
sayang yung use nang mcu. dapat yung may power on electric fan after air con. hihihi. (the more you have the more you need)
meron na kasing available na electric fan switch roll-over yung airconditioning... so di na kakailanganin di ba? ang added feature lang na gusto ni misis ay yun timer override.... may pagkakataon na di na kailangan mag hintay syempre di ba? of course overkill yung MCU... mas madali lang kasing iimplement! hehehehe  at medyo marami ako nito sa bin...
|
|
|
|
|
Logged
|
"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
|
|
|
marcelino
Moderator
Solar Power Satellite
   
Pogi/Ganda Points: 247
Offline
Posts: 5861
...keep moving forward! - Robinson's
|
 |
« Reply #30 on: August 24, 2009, 11:04:51 PM » |
|
medyo malapit yong 220V contacts sis, pero try nyo lang.....reinforce nyo lang ng solid wire yong trax ng 220 para hindi ito uminit o di kaya masira pag-nagloko ang aircon.
pwede ko naman yan iusud pa pataas... marami pang space sa enclosure. pero sige... eto na nga muna ang gawin ko. pag-experimentuhan tuloy.
|
|
|
|
|
Logged
|
"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
|
|
|
marcelino
Moderator
Solar Power Satellite
   
Pogi/Ganda Points: 247
Offline
Posts: 5861
...keep moving forward! - Robinson's
|
 |
« Reply #31 on: August 24, 2009, 11:23:58 PM » |
|
madami akong natutunan sa pagtanong ko lang kung maaring gamitin o hindi! hehehe  maganda talaga kapag mas maraming ulo ang mag-iisip sa kahit anong bagay.
|
|
|
|
|
Logged
|
"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
|
|
|
7_SeVeN_7
Technical People
Solar Power Satellite
   
Pogi/Ganda Points: 380
Offline
Posts: 5954
There is no delight in owning anything unshared.
|
 |
« Reply #32 on: August 24, 2009, 11:27:08 PM » |
|
saan nakakabili ng contactor?
|
|
|
|
|
Logged
|
E-Gizmo Mechatronix Central: www.e-gizmo.comTel #: (63)(2) 536-3378 Globe +63915-973-7691 Smart +63921-779-0748 Location MapYM: julie.egizmo aka Born2BeWired 
|
|
|
|
insomartin
Guest
|
 |
« Reply #33 on: August 24, 2009, 11:31:14 PM » |
|
^ kung saan din nakakabili nang malalaking starting capacitor for motor... pero kung wala sa kanila MALAMANG alam nila kung saan meron.
*kung may shafting may bearing, coupling, at screws. *kapag may resistor may capacitor, ic at diode. *kapag may freon may aircon, ref at copper tubing. trabaho ko na mag canvas eh.
|
|
|
|
|
Logged
|
|
|
|
|
kinyo
|
 |
« Reply #34 on: August 24, 2009, 11:52:37 PM » |
|
karamihan sa mga bagong aircon meron nang protection sa momentary power interruption ... kapag hindi nag-start ang compressor within a few seconds (due to high pressure), magtrigger ang delay but it won't hurt to have your own delay circuit ... redundant nga lang 
|
|
|
|
|
Logged
|
|
|
|
|
insomartin
Guest
|
 |
« Reply #35 on: August 25, 2009, 12:06:25 AM » |
|
^ iniisip ko na eh. kung hindi c bryan po, si sir kinyo...  na burst yung think tank namin.
|
|
|
|
|
Logged
|
|
|
|
marcelino
Moderator
Solar Power Satellite
   
Pogi/Ganda Points: 247
Offline
Posts: 5861
...keep moving forward! - Robinson's
|
 |
« Reply #36 on: August 25, 2009, 12:33:42 AM » |
|
karamihan sa mga bagong aircon meron nang protection sa momentary power interruption ... kapag hindi nag-start ang compressor within a few seconds (due to high pressure), magtrigger ang delay but it won't hurt to have your own delay circuit ... redundant nga lang  Really! hehehe  what?!!!  i will have to look for the specification sheet of the aircon!
|
|
|
|
|
Logged
|
"Don't take life seriously. After all, no one has ever come out of it alive. -Bugs Bunny"
|
|
|
|
kinyo
|
 |
« Reply #37 on: August 25, 2009, 03:30:57 AM » |
|
i will have to look for the specification sheet of the aircon! i doubt if you'll find it listed ... but surely you can verify the delay feature by simply simulating a brief power interruption ... you will hear the compressor attempting to re-start, and it won't if there is high pressure, and then the delay kicks in in some bigger models with electronic control, as i have seen in split-type, the delay is activated immediately ... similar to your project 
|
|
|
|
|
Logged
|
|
|
|
ahlburuto
Diesel Generator
Pogi/Ganda Points: 24
Offline
Gender: 
Posts: 1591
E&I tech.
|
 |
« Reply #38 on: August 25, 2009, 11:57:37 AM » |
|
Mashadong overkill naman sis marce yang ginagawa mo. Sayang yung mga piyesa... Magconventional ka na lang na LM555 timer. Madali pang imaintain yun.
|
|
|
|
|
Logged
|
Walang GUYAM kung walang GUGUYAMEN...... 
|
|
|
bravokilo
Diesel Generator
Pogi/Ganda Points: 51
Offline
Posts: 1131
|
 |
« Reply #39 on: September 26, 2009, 09:20:31 PM » |
|
Sis Marce, may POD for aircon sa Deeco for P750 ata. I built and sold many PODs. Alexan has a kit. Only atimer ic, 555 , is used. The IC really just amplifies the charging of a capacitor but then again andun na lahat. Normally open relay ang gamit dun. The IC resets kung may black out. May crkt din for low voltage (brown out). Pin 3 drives a trnsistor which drives the primary of the relay, usually 6 volts. There is a diode accross the terminals of the primary to absorb the back emf. As for the relay, I used the Deeco variant, double pole double throw rated 10 amps at 220V and contacts. I parallel the contacts to get 20A total and I only break one line on the AC side. pag on si Meralco, magtitime muna siya 3 to 5 mins, then ON.Pag blackout or brownout, mawala and drive dun sa Pin 3, relay pops open. The fact that power disappeared at the same time the relay opens, I would imagine the arcing is at least reduced. Also, hindi naman open close lagi yan relay. Minsan lang. Your relay will work, Just adjust the drive V on the primary to 5 V. Tama yan NO if you use the 555 IC. ok lang kung pag PCB, layuan mo lang ang AC contacts from thesurrounding copper and make sure, eon lang pag sarado and box.
BK
|
|
|
|
|
Logged
|
|
|
|
|
The Philippine Electronics and Technology Forum
|
|
|
|
|
|
Logged
|
|
|
|
|