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Author Topic: power saver  (Read 4580 times)

Offline flatlander2john

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power saver
« on: February 24, 2009, 08:32:39 PM »
 may diagram ng power saver katulad sa commercial tv ad. thanks mga bossing

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power saver
« on: February 24, 2009, 08:32:39 PM »

Offline rdpzycho

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Re: power saver
« Reply #1 on: February 24, 2009, 09:06:15 PM »
search niyo na lang dito sa forum. 4.7uF capacitor naka-parallel sa line 'yung mga binebenta sa mall at department store.
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Re: power saver
« Reply #1 on: February 24, 2009, 09:06:15 PM »

Offline flatlander2john

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Re: power saver
« Reply #2 on: February 24, 2009, 09:29:47 PM »
anong link bossing? ilang volts ba yung cap? capacitor lng ba ang parts?

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Re: power saver
« Reply #2 on: February 24, 2009, 09:29:47 PM »

Offline rdpzycho

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Re: power saver
« Reply #3 on: February 24, 2009, 09:31:48 PM »
hindi ko sigurado. pa-search na lang sa search box sa taas.
‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
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"For every difficult problem there is always a simple answer and most of them are wrong."
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Re: power saver
« Reply #3 on: February 24, 2009, 09:31:48 PM »

Offline subzer0

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Re: power saver
« Reply #4 on: February 24, 2009, 09:33:49 PM »
anong link bossing? ilang volts ba yung cap? capacitor lng ba ang parts?


High voltage yun,yung ginagamit ng motor pang start-up cap,black ang kulay nya,kagaya ng electric fan start-up cap,5uF.meron nyan sa deeco.
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Re: power saver
« Reply #4 on: February 24, 2009, 09:33:49 PM »

Offline rdpzycho

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Re: power saver
« Reply #5 on: February 24, 2009, 09:34:43 PM »
sa electric fan din meron 'yun. ;D
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Offline flatlander2john

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Re: power saver
« Reply #6 on: February 24, 2009, 09:35:28 PM »
ok boss thanks, parallel lng ba ang connection sa line na 22o?

Offline rdpzycho

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Re: power saver
« Reply #7 on: February 24, 2009, 09:36:13 PM »
yup.
‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
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Offline aying

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Re: power saver
« Reply #8 on: February 24, 2009, 09:44:27 PM »
High voltage yun,yung ginagamit ng motor pang start-up cap,black ang kulay nya,kagaya ng electric fan start-up cap,5uF.meron nyan sa deeco.
ang bilhin nyo ung pang compressor ung metal ang casing hwag ung pang electricfan na plastik bka pagsimulan pa ng sunog yan

Offline subzer0

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Re: power saver
« Reply #9 on: February 24, 2009, 09:48:23 PM »
may diagram ng power saver katulad sa commercial tv ad. thanks mga bossing

trial and error kasi yan depende sa load mo,yun yung cap na ipaparallel mo(cancelling out inductive vs capacitive load).
maganda nyan gawa ka ng power factor meter.iyun ang reference mo.pag mataas load na inductive,malaki ang ipaparallel nya na capacitance,pero automatic nyang icocorrect yung power factor near to 1(0.99).tapos kung mababa load inductive,maliit din ipaparallel nya na capacitance.ganyan nangyayari sa PFC na DCDC converter pero boost topology yung
ginagamit nya para sa SMPS.nagkakatalo lang ng ng effiency dahil sa DCDC converter stages.pero di ako masyado familiar sa ACAC na process na PFC,pagkakaalam ko may power analyzer sya na nagsusukat ng power factor,tapos nagdedepende nalang sya sa load na inductive na kung anong ang tamang capacitive value na ipaparallel nya dun sa capacitor bank.
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Offline subzer0

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Re: power saver
« Reply #10 on: February 24, 2009, 09:50:31 PM »
ang bilhin nyo ung pang compressor ung metal ang casing hwag ung pang electricfan na plastik bka pagsimulan pa ng sunog yan

yup mas matibay yung metal ang casing,kung pangmatagalan.yung benebenta na power saver kuno,yung plastic ang casing hehehe.
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Offline robbietan

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Re: power saver
« Reply #11 on: April 02, 2009, 08:23:55 AM »
its a 4.7microFarad capacitor with a 600V rating

I built one with a total cost of 100 peysos.
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Re: power saver
« Reply #12 on: April 29, 2009, 12:05:38 PM »
its a 4.7microFarad capacitor with a 600V rating

I built one with a total cost of 100 peysos.

how much nasave na nasave nyo boss? pero parang ang liit ng 4.7microF

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Re: power saver
« Reply #13 on: April 29, 2009, 06:41:08 PM »
I saved a total of 1900 peysos, instead of buying that gizmo they sell on ace hardware. these gizmos consume around 1 watt, which totally defeats their purpose of "saving power".

most of the "power savers" I tested have 4.7 to 5 micro farad capacitors, from 460 to 600 volts. havent tested a single "power saver" that works, and I am open to testing more
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Offline Bong21

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Re: power saver
« Reply #14 on: April 29, 2009, 07:05:02 PM »
Sir Robbietan,I thought this is only useful in industrial settings to correct the power factor of motors? please enlighten us.

Offline rence

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Re: power saver
« Reply #15 on: April 30, 2009, 12:09:22 AM »
how much nasave na nasave nyo boss? pero parang ang liit ng 4.7microF

     Hello to everyone...medyo bago po ako d2 sa forum...singit lang po ako sa topic tungkol sa thread about power saver.

     Tungkol po sa tanong na may "savings" ba makukuha kung gagamit tayo ng PF correction capacitor sa  residential applications? ... ang sagot ko po ay wala as in "nothing".
Maaring bumaba ang amperes or amperahe kung maglalagay tayo ng Capacitor para makontra ang mga inductive loads sa bahay ... pero wala itong epekto sa actual consumption base sa Kilowatt Hour na metering ng Meralco. Kung pag-aaralan nyo ang AC circuits base sa Vector Diagram ng inductive loads... malabong mangyari na maka-apekto ang pagbaba ng amperes sa watts. Please remember na iba ang Ohms law sa AC circuits compared sa DC. Besides po, ang metering ng power consumption ng Meralco ay base sa KWhour hindi po sila nagba-base sa Amperes. Kung sana sa Amperahe sila nag me-meter baka noon pa ko naglagay sa bahay ko ng PFcapacitor.
     Ang benifit lang na alam ko makukuha sa paglagay ng PFcapacitor corrector sa bahay eh... makakabawas ng size ng wire na papatakbuhin sa isang load, pero hindi ito makakabawas ng bill sa consumption.
     WAg na kayong  bumili ng mga energy saver base on PFCapacitor. misleading ang presentation nila sa public, dapat  Ipa-DTI yang mga yan.

     Ang alam kong totoong energy saving device ay yung mga timer base.  ;D :) 8)

Or kung maari titigan nyong mabuti yung Off switch ng mga appliance nyo yan ang pinaka magandang energy saving device. he,he. Joke. ;D ;D

Offline emj_e2

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Re: power saver
« Reply #16 on: April 30, 2009, 08:07:51 AM »
sir inrie tanong ko lang po- ano po yung na feature sa local tv na energy savers na gawang pinoy? na highlight pa yata yun na pinoy invention. and bout sa ampere based na meter- dito samin pinalitan halos lahat ng meter ng meter na may red blinking indicator. ng reklamo ang karamihan dahil tumaas ang bill nila. pinabalik ang dating metro. sabi ng iba- kahit daw charger ng cellphone pumapalo sa bagong metro. and pag gumamit ng welding machine- nasisira ang bagong metro. and lastly sang-ayon ako sayo sir na ang the best energy saver ay ang "OFF" switch. ;D
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Offline EE-one

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Re: power saver
« Reply #17 on: April 30, 2009, 03:25:17 PM »
  Besides po, ang metering ng power consumption ng Meralco ay base sa KWhour hindi po sila nagba-base sa Amperes. Kung sana sa Amperahe sila nag me-meter baka noon pa ko naglagay sa bahay ko ng PFcapacitor.
Alam ko di lahat ng single phase kwhr meter ay meron power factor adjustment. kung wala dun talaga may savings, since voltage and current lang sila nakabase. Pero sige try ko i-ask mga former colleagues ko at meralco kung anong type ng meters ang meron sila

Offline robbietan

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Re: power saver
« Reply #18 on: April 30, 2009, 04:49:47 PM »
Sir Robbietan,I thought this is only useful in industrial settings to correct the power factor of motors? please enlighten us.

many hi-efficiency motors have capacitors built in to improve their power factor and efficiency. the gizmos sold in the malls are marketed for home use, hence the gizmos have male plugs that are compatible with home sockets. improving power factor in industrial plants is tricky, you have to know the overall power factor of the facility so that you will know how much kVAR you need to install. that plus a host of other factors, like harmonics, should be factored in before installing capacitors.
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Re: power saver
« Reply #19 on: April 30, 2009, 04:55:24 PM »
sir inrie tanong ko lang po- ano po yung na feature sa local tv na energy savers na gawang pinoy? na highlight pa yata yun na pinoy invention. and bout sa ampere based na meter- dito samin pinalitan halos lahat ng meter ng meter na may red blinking indicator. ng reklamo ang karamihan dahil tumaas ang bill nila. pinabalik ang dating metro. sabi ng iba- kahit daw charger ng cellphone pumapalo sa bagong metro. and pag gumamit ng welding machine- nasisira ang bagong metro. and lastly sang-ayon ako sayo sir na ang the best energy saver ay ang "OFF" switch. ;D

if the meter is not designed to handle interharmonics (like those coming from a welding machine), puedeng magkamali ang reading pero hindi dapat masira. household meters are not big enough to handle large loads like welding machines. and there is always that chance na baka pati kuryente ng kapitbahay mo ay affected ng welding machine mo.
apqi.ph

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Re: power saver
« Reply #19 on: April 30, 2009, 04:55:24 PM »

 

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