Page 1 of 2 12 LastLast
Results 1 to 30 of 51

Thread: Gadget to reduce electric consumption

  1. #1
    Founding Member tan_13heat's Avatar
    Join Date
    Jul 20 2005
    Location
    QC
    Posts
    1,912

    power saver - plug in... does it work? how does it work?

    nakikita ko sa SM and sa TV shopping... its suppose to lower your electricity even if you if you use the same appliances parin...
    parang lower electricity usage daw...???
    huhuhu.. Sk17i ko bagsak price na...

    ~ striving to be the best there is

  2. #2
    Founding Member jtdc's Avatar
    Join Date
    Jul 20 2005
    Location
    Cyberjaya
    Posts
    1,556
    supposedly it lowers consumption by line conditioning and providing lesser current and/or volts than the required. dunno nga lang kung applicable satin mga ganyan, or kung talagang nakakapagpatipid ba. wala kc 2 months demo or money back to do study.

  3. #3
    Professional Chambalero
    Z-man's Avatar
    Join Date
    Jul 22 2005
    Location
    Mandaluyong....loob...heheheh
    Posts
    2,481
    sir... power factor correction ang ginagawa nyan.... if it was well designed, it will lower electricity consumption.... pero pag di tama ang design it will add up to your electric bills
    Z, that's all there is to it! live life to the fullest!!! O: )
    +63 917 HID DFBF

  4. #4
    Founding Member
    Join Date
    Jul 22 2005
    Location
    Makating Makati
    Posts
    1,139
    ito ba yung power star? dami nag sasabi it doesn't work, ito daw yung cause ng mga sunod sa taiwan, since thay can't dispose it kaya siguro dinala dito sa atin.

  5. #5
    Founding Member dimsum's Avatar
    Join Date
    Jul 22 2005
    Location
    QC
    Posts
    488
    Quote Originally Posted by Z-man
    sir... power factor correction ang ginagawa nyan.... if it was well designed, it will lower electricity consumption.... pero pag di tama ang design it will add up to your electric bills
    true, the device will try to raise the power factor close to 1, the ideal.
    actually meralco offer this kind of scheme to heavy electric consumers like plants.

  6. #6
    Founding Member tan_13heat's Avatar
    Join Date
    Jul 20 2005
    Location
    QC
    Posts
    1,912
    so which product "brand" does work? sa sm?
    huhuhu.. Sk17i ko bagsak price na...

    ~ striving to be the best there is

  7. #7
    Founding Member janjanman's Avatar
    Join Date
    Jul 21 2005
    Posts
    2,032
    not sure if malaki matitipid mo dito...

    power factor correction uses capacitors/inductors, big plants use these to lower their bills... malaki ang bawas nito for big plants....

    i think dapat less than 0.8 yung power factor mo, kasi if more than 0.8 meralco would charge extra (may panalty), up to a certain point lang pwede umabot yung PF

  8. #8
    Founding Member
    Join Date
    Feb 04 2006
    Location
    fgfgf
    Posts
    199
    sa engineerimg school ako sabi ng circuits prof. namin HINDI nagwowork ang power saving device pag mga bahay lang pero pag factory or malakihan na,OK ang power saving device,sabi nya he designed yung power saving device sa school namin

  9. #9
    Founding Member
    Join Date
    Jul 20 2005
    Location
    Yyz-Mnl
    Posts
    5,001
    wala naman kasing penalty ang powerfactor sa residential e.

    kung pang industrial naman, masyadong maliit yan.
    For Budget Reasons the Light at the End of the Tunnel had to be switched Off

  10. #10
    Founding Member noweev's Avatar
    Join Date
    Jul 27 2005
    Posts
    4,023
    Meron ako nakita nyan sa Ace Hardware sa Makati.

  11. #11
    Founding Member dimsum's Avatar
    Join Date
    Jul 22 2005
    Location
    QC
    Posts
    488
    Quote Originally Posted by janjanman
    not sure if malaki matitipid mo dito...

    power factor correction uses capacitors/inductors, big plants use these to lower their bills... malaki ang bawas nito for big plants....

    i think dapat less than 0.8 yung power factor mo, kasi if more than 0.8 meralco would charge extra (may panalty), up to a certain point lang pwede umabot yung PF

    from wikipedia:

    "The significance of power factor lies in the fact that utility companies supply customers with volt-amperes, but bill them for watts. Power factors below 1.0 require a utility to generate more than the minimum volt-amperes necessary to supply the real power (watts). This increases generation and transmission costs. Good power factor is considered to be greater than 0.85 or 85%. Utilities may charge additional costs to customers who have a power factor below some limit."

  12. #12
    Banned Member
    Jowi's Avatar
    Join Date
    Jul 12 2005
    Posts
    2,022
    hindi totoo yan...di din naman nila (supplier) mapaliwanang kung pano yung principle...kaya pinagbabawal ng meralco yan.

  13. #13
    Founding Member joveth's Avatar
    Join Date
    Oct 16 2005
    Posts
    922
    It just add up to your electric bill. I'm an electrical engineer and I can say that the device is some sort of capacitor load which just "corrects" your power factor.

    First of all, residential consumers are billed based on kWhr consumption and not kW demand. Commercial and industrial consumers are billed based on kWhr consumption and kW demand. When you say POWER FACTOR, your dealing with KILOWATTS and not KILOWATTHOURS. kWhrs are electric energy while kW is power.
    Voltage (230V) x Current (say 10Amps) = 2,300 Watts or 2.3kW.

    2nd, capacitors also consumes electricity. It acts like a battery because it stores energy and it dissipates during the "discharging process."

    Just for a thought...

    My new iPad 2 32GB wifi, 3G, iOS 4.3.3
    My iPad 2 32GB wifi, iOs 4.3.3
    My new Blackberry Torch 9800
    My iPhone 3GS 32GB iOS 4.3.3
    Samsung Jet s8003
    My Sony Ericsson c902
    My Nokias 5800, 2700, 1600 & 2600
    Cell# 09228-AVS111

  14. #14
    Member: Elybabhips

    schnitzerz4's Avatar
    Join Date
    Jul 19 2005
    Location
    Hollywood
    Posts
    22,842
    guys totoo kaya yung pianapakita nila sa meter na malaki talaga ibinababa
    okay sa aircon ito ha
    A person with an iPhone is trendy. A person with a Blackberry is important.

  15. #15
    Founding Member tan_13heat's Avatar
    Join Date
    Jul 20 2005
    Location
    QC
    Posts
    1,912
    i have tried this device pero di ko malaman if matidpid lang kami lately or dahil sa device kasi bumaba price ng bill namin.

    ayoko naman subukan tanggalin kasi laki nabawasan e hehehe.
    huhuhu.. Sk17i ko bagsak price na...

    ~ striving to be the best there is

  16. #16
    Founding Member wey_nard's Avatar
    Join Date
    Jul 22 2005
    Posts
    3,210
    meron din sa comp shop namin, kaso di ko alam kung nakakatipid talaga kasi di pa kami nagbubukas dati naka-install na. Electrofix yung brand nya model 30 amperes 6600 watts

  17. #17
    Founding Member redisol's Avatar
    Join Date
    Jul 27 2005
    Posts
    1,814
    This morning biglang nagamoy usok sa kitchen namin. Yun pala umuusok na yung Power Star na nabili namin noon sa Home TV Shopping. Buti na lang during daytime nangyari. Kung hindi baka nagkasunog pa sa amin.


    I opened the device and guess kung anong laman ng "hi-tech" na device na ito?




    Capacitor and a resistor lang pala ang laman na pwedeng bilhin sa labas at a fraction of its price! Tama nga hinala ko. Power factor correction lang ang principle na ginagamit nila. Tsk tsk

  18. #18
    maCOOLit parin maCOOLit's Avatar
    Join Date
    Jul 23 2005
    Location
    Not at my desk
    Posts
    6,792
    may diagram ba yan, gawin nalang natin....

  19. #19
    Founding Member tan_13heat's Avatar
    Join Date
    Jul 20 2005
    Location
    QC
    Posts
    1,912
    mas magaling dyan mga ECE or electrical engineering.. hehehe

    pagwa naman ng reliable device hahaha
    huhuhu.. Sk17i ko bagsak price na...

    ~ striving to be the best there is

  20. #20
    Founding Member joveth's Avatar
    Join Date
    Oct 16 2005
    Posts
    922
    'Yan talaga lang 'yan, the power factor correction lang 'yan. but for us residential consumers, we're not being billed based on kW but kWhrs so it doesn't do any good. It just adds up to our electricity because it's a capacitance load.

    True Power = Real Power + Reactive Power; P = R + jQ

    Reactive Power = maybe postive (capacitance) or negative (inductance)

    When I saw that thing being sold sa SM, I even lectured this to them.

    Basically, residential consumers will not realize the savings of these "power factor correcting" gadgets, commercial and industrial consumers do. How? 1st of all, if you're a non-industrial (NIS) or industrial (IS) customer, PF above 85% will give you savings in terms of your Meralco bill. Most industries rely mainly on motor loads and these loads require power factor correction since these equipment aren't 100% efficient! Even in their lighting needs, they uses ballasts for their flourescent lights, these also need further PF correction.

    My new iPad 2 32GB wifi, 3G, iOS 4.3.3
    My iPad 2 32GB wifi, iOs 4.3.3
    My new Blackberry Torch 9800
    My iPhone 3GS 32GB iOS 4.3.3
    Samsung Jet s8003
    My Sony Ericsson c902
    My Nokias 5800, 2700, 1600 & 2600
    Cell# 09228-AVS111

  21. #21
    Newbie Poster
    Join Date
    Jun 28 2007
    Posts
    1

    aw

    d totoo ung electrofix energy saver na 30a 6600 watts. bumili ako nyan para sa comp. shop ko mas lalong tumaas ang bill ko sa kuryente, dati bill ko 5k ngaun naging 10k, tumatawag ako dun sa ngbenta sa akin sbi nila papalitan daw ng unit pero d nmn bumabalik d2 sa amin, 2 wiks ko clang tinatawagan sbi nkaschedule n daw pero d p rin cla pmunta d2 para palitan. 7thou+ ko un binili. WAG KAU MANINIWALA SA MGA NAGBEBENTA SA INYO NG GNUNG PRODUKTO, D EPEKTIBO UN. WAG KAU BUMILI. MALOLOKO LNG KAU TULAD KO. MGA G*** CLA.
    Last edited by Romeo; July 21st, 2008 at 12:58 PM.

  22. #22
    psssssst
    bcpnj2007's Avatar
    Join Date
    Nov 11 2007
    Location
    add me sa ym bcpnj2007
    Posts
    716

    Gadget to reduce electric consumption

    Totoo ba ito?

    Dalawang klase alam ko, yung isa, plug sa outlet, then plug the appliance sa gadget (maximum of 2 appliances yata).

    Yung pangalawa, plug to any outlet, ganun kasimple. Nakita ko sa isang internet shop ito, sabi nung shop owner, malaki daw binaba ng consumption niya.

    I can't understand how it works, parang imposible.

    Question, totoo ba ito?
    To GOD Be The GLORY!!!

  23. #23
    Kambal sa Pokwang
    Cassidy's Avatar
    Join Date
    Jul 20 2005
    Location
    Kanlungan ng Akyat Bahay
    Posts
    7,399
    We bought the Powersaver from Handyman for 1999 each. Bumili kami ng 2... Wala pang 1 month kasi... sabi dun sa Handyman Galleria, kapag daw hindi bumababa ang bill ng kuryente, pwedeng ibalik DAW (ipapakita mo lang yung usage mo).
    Ayoko na magsalita...

  24. #24
    Founding Member imhotep's Avatar
    Join Date
    Jun 01 2006
    Location
    in alpha...
    Posts
    2,672
    Hello mga BNCers,

    Sorry po pero di totoo lahat yan claims na nakakabwas ng kunsumo at bayad sa kuryente.

    You cannot foil the electric meters reading your current consumption in your house by simply plugging these gadgets.

    By basic electromotive force equation:
    v=ir and current = voltage/ resistance
    i = 220vac/ R (resistive force of conductors in your appliances, and house wirings) = x watts

    cutting on current consumption can only be through:
    - reducing electric appliance use and cutting on high power appliances (irons, electric ovens, freezers, big TVs, etc)
    - using energy efficient electric devices (energey saving /EL lights. EER appliances etc.)
    - using superconducting wires in your houses and appliances and ofcourse on the power distribution lines less pilferage (but this is ofcourse far from being real and practical)
    - just dont use electricity period

    in short: these gadgets are all but a big fat con. this is why its not being promoted by the government or any educational instiution in the country for that matter even in the midst of energy crisis.

    cheers and sorry to dissapoint you.

    Quote Originally Posted by Cassidy View Post
    We bought the Powersaver from Handyman for 1999 each. Bumili kami ng 2... Wala pang 1 month kasi... sabi dun sa Handyman Galleria, kapag daw hindi bumababa ang bill ng kuryente, pwedeng ibalik DAW (ipapakita mo lang yung usage mo).
    doc: medyo malabo yata sabi sa yo ng taga handyman. kase sa resibo nila at company regulations, 7-days lang simula ng pagkabili mo ng kahit aanong item nila pwede mo isoli at papalitan yung item.

    so 7days is not enough to test that gadget unless meralco gives you your bill in a weeks time for a week's consumption.

    cheers
    Last edited by imhotep; July 21st, 2008 at 12:53 AM. Reason: Automerged Doublepost
    To err is human, but to love is divine!

  25. #25
    Founding Member loadex's Avatar
    Join Date
    Nov 06 2005
    Location
    Quezon
    Posts
    1,091
    yung bayaw ko bumili ng ganitong gadget sa ACE, im just waiting for their bill to arrive and tingnan ko kung drastic nga ang baba ng bill nila. Pero still the sure way to cut electricity is to yurn off unwanted lights.. turn off TV not on standby mode.... and if kaya pati mga night light sa labas ng bahay, kung katapat niyo naman ang meralco lamp post.

  26. #26
    Founding Member
    Join Date
    Jul 26 2005
    Posts
    396
    Depends I think on the meter used. Power for resistive loads (heater, incandescent, etc...) are not affected since there are no inductive load to correct. Capacitor banks in inductrial facilities are switched in when the inductive load which lowers the power factor increases to the point of gettive penalized by Meralco, hence power factor correction.

    Adding the capacitor reduces the inductive load (fans, aircon, compressor) assuming the capacitance is large enough. If the meter measures both real and imaginary (using electrical engineering terms) which is not the case for residential I think, then sayang lang pera mo.

    Still, the best way is to check if the speed of rotation of your meter really slows down. I think hindi pang residential yung sa mga demo.

    The gadget is just a power factor corrector.
    Posted via Mobile Device

  27. #27
    Founding Member guguly's Avatar
    Join Date
    Jul 26 2005
    Location
    SLEX
    Posts
    2,150
    Quote Originally Posted by imhotep View Post
    Hello mga BNCers,

    Sorry po pero di totoo lahat yan claims na nakakabwas ng kunsumo at bayad sa kuryente.

    You cannot foil the electric meters reading your current consumption in your house by simply plugging these gadgets.

    By basic electromotive force equation:
    v=ir and current = voltage/ resistance
    i = 220vac/ R (resistive force of conductors in your appliances, and house wirings) = x watts

    cutting on current consumption can only be through:
    - reducing electric appliance use and cutting on high power appliances (irons, electric ovens, freezers, big TVs, etc)
    - using energy efficient electric devices (energey saving /EL lights. EER appliances etc.)
    - using superconducting wires in your houses and appliances and ofcourse on the power distribution lines less pilferage (but this is ofcourse far from being real and practical)
    - just dont use electricity period
    cheers and sorry to dissapoint you.
    so, pano yung mga demo nila na meron pang electric meter and plugging in the device slows it down or lowers the reading?

  28. #28
    Founding Member bobokid's Avatar
    Join Date
    Jul 19 2005
    Location
    Singapore
    Posts
    1,147
    Tama si poops. Sa mga malaking kumpanya na maraming mga makina, pati yata reactive power ay sinisingil.

    Eto kung matiyaga kayo magbasa (from Wikipedia):

    AC power flow has the three components: real power (P), measured in watts (W); apparent power (S), measured in volt-amperes (VA); and reactive power (Q), measured in reactive volt-amperes (VAr).

    The power factor is defined as:

    P / Q

    In the case of a perfectly sinusoidal waveform, P, Q and S can be expressed as vectors that form a vector triangle such that:

    S2 = P2 + Q2 (squared po yan

    If w is the phase angle between the current and voltage, then the power factor is equal to |cos w|, and:

    P = S * |cos w|

    Since the units are consistent, the power factor is by definition a dimensionless number between 0 and 1. When power factor is equal to 0, the energy flow is entirely reactive, and stored energy in the load returns to the source on each cycle. When the power factor is 1, all the energy supplied by the source is consumed by the load. Power factors are usually stated as "leading" or "lagging" to show the sign of the phase angle, where leading indicates a negative sign.

    If a purely resistive load is connected to a power supply, current and voltage will change polarity in step, the power factor will be unity (1), and the electrical energy flows in a single direction across the network in each cycle. Inductive loads such as transformers and motors (any type of wound coil) consume reactive power with current waveform lagging the voltage. Capacitive loads such as capacitor banks or buried cable generate reactive power with current phase leading the voltage. Both types of loads will absorb energy during part of the AC cycle, which is stored in the device's magnetic or electric field, only to return this energy back to the source during the rest of the cycle.

    For example, to get 1 kW of real power, if the power factor is unity, 1 kVA of apparent power needs to be transferred (1 kW ÷ 1 = 1 kVA). At low values of power factor, more apparent power needs to be transferred to get the same real power. To get 1 kW of real power at 0.2 power factor, 5 kVA of apparent power needs to be transferred (1 kW ÷ 0.2 = 5 kVA). This apparent power must be produced and transmitted to the load in the conventional fashion, and is subject to the usual distributed losses in the production and transmission processes.

    It is often possible to adjust the power factor of a system to very near unity. This practice is known as power factor correction and is achieved by switching in or out banks of inductors or capacitors. For example the inductive effect of motor loads may be offset by locally connected capacitors. When reactive elements supply or absorb reactive power near the point of reactive loading, the apparent power draw as seen by the source is reduced and efficiency is increased. The reactive elements can create voltage fluctuations and harmonic noise during connection and disconnection procedures, and they will supply or sink reactive power regardless of whether there is a corresponding load operating nearby, increasing the system's no-load losses. In a worst case, reactive elements can interact with the system and with each other to create resonant conditions, resulting in system instability and severe overvoltage fluctuations. As such, reactive elements cannot simply be applied at will, and power factor correction is normally subject to engineering analysis.
    מיכאל רייס

  29. #29
    Founding Member redisol's Avatar
    Join Date
    Jul 27 2005
    Posts
    1,814
    I had the chance to see what's inside this kind of device nung nasunog yung sa amin. Muntik nang masunog bahay namin.

    Capacitor and resistor lang ang laman. Dali lang gawin.

    See the photo in this thread
    http://www.bncxe.org/showthread.php?...ht=power+saver

  30. #30
    Professional Chambalero
    Z-man's Avatar
    Join Date
    Jul 22 2005
    Location
    Mandaluyong....loob...heheheh
    Posts
    2,481
    Quote Originally Posted by poops View Post
    Depends I think on the meter used. Power for resistive loads (heater, incandescent, etc...) are not affected since there are no inductive load to correct. Capacitor banks in inductrial facilities are switched in when the inductive load which lowers the power factor increases to the point of gettive penalized by Meralco, hence power factor correction.

    Adding the capacitor reduces the inductive load (fans, aircon, compressor) assuming the capacitance is large enough. If the meter measures both real and imaginary (using electrical engineering terms) which is not the case for residential I think, then sayang lang pera mo.

    Still, the best way is to check if the speed of rotation of your meter really slows down. I think hindi pang residential yung sa mga demo.



    The gadget is just a power factor corrector.
    Posted via Mobile Device


    tama po, you can correct the APPARENT power eaten by inductive loads, para mapalapit syasa TRUE power na kinakain nang resistive loads...

    if you would check the flourecent lamps set from philips may kasama capacitor... para yun ma alis ang apparent power na kinakain nang ballast.

    pero kung gusto talaga makatipid nang kuryente, i-off ang di ginagamit na appliance
    Z, that's all there is to it! live life to the fullest!!! O: )
    +63 917 HID DFBF

Similar Threads

  1. Electric jeepneys begin plying Makati
    By fossil in forum "Anything Goes" Lounge
    Replies: 22
    Last Post: July 14th, 2008, 11:10 AM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •