Power Saver Max, Wattage-Zapping Device

oh great it may guide to many users of electricity because you had already use of it.

http://cadztech.blogspot.com

the salesman at the mall said that you need to plug the device closest to the appliance that uses the most power and is always on. i guess that means the refrigerator.

i don’t know if this is just sales talk but he also suggested to get at least two of these for homes that consume about 650 to 1000kwh.

Those are actually good results, considering you [I’m assuming here] have Christmas lights up during the Christmas season. Yeah, I suggest further trial and testing. Keep us posted. :)

i haven’t used one of these ‘power savers’ but the first thing that came to mind was the device was mainly a capacitor. sylv3rblade mentioned that it’s basically adding capacitance, and i think he’s correct.

in general, capacitance is added to the system to counteract the effect of inductive devices, i.e. refrigerators, air conditioners, large motors, transformers. by convention, a capacitor supplies ‘positive’ reactive power that would otherwise be supplied by the system (through Meralco). this supply of ‘positive’ reactive power generally lowers the current magnitude since it brings the power factor from negative to unity (1.00 pf).

if it’s truly a capacitor, precaution needs to be taken here – add too many of these ‘power savers’ and you risk having an overvoltage inside your house if you unplug/turn off your ref, aircon, etc. that is, if the ‘power saver’ does not have sensing of the power factor and doesn’t turn itself off automatically in the event of an oversupply. an oversupply of reactive power will bring the power factor to positive, and that will generally raise the voltage at your end.

in my opinion, it won’t matter where you plug the ‘power saver’ so long as you plug it after the electric meter.

also, Meralco’s residential billing structure and metering does not meter your consumption of reactive power (kVar) and reactive energy (kVarh). in commercial and industrial billing structures, kVar and kVarh is metered, and they are penalized if their power factor is below -0.80 or above ~1.00 and given a discount if it is in the region of -0.95 and 1.00.

however, i advice you to go ahead with testing, maybe there’s something else there that we don’t know of that would truly lower your consumption. like i’ve said, i haven’t used this device yet, and if it does what it promises to do, then i’m all for it :)