Re: Electric Power Conservers: Scam or No Scam?

There is no need to guess, just look at your meralco bill to confirm.

Re: Electric Power Conservers: Scam or No Scam?

Guess at what?

Re: Electric Power Conservers: Scam or No Scam?

IMO, scam or not, electric conservation still depends on the end user. ;D

Re: Electric Power Conservers: Scam or No Scam?

it actually works but it depends on what you actually have
it works best with motors (be it armature or induction or whatever)

it doesn't work much on light, electronics and heaters(not sure) though

if you run many motor based appliance ea(washing machines, refrigerator, aircons, electricfans etc.) then its well worth it

its theory: well to put it to simply
it lessens power flux (wehn you start a motor, it consumes more electricity. in short it spikes, try the tester)

i don't know how to explain HOW it works but can show it actual through a multitester (im no engineer... i only have some interest in tools)
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Re: Electric Power Conservers: Scam or No Scam?

It helps when the load is inductive in nature (e.g. motors and coils within the appliance) because the initial surge is strong enough to cause the electric meter to speed-up instantaneously altho momentarily.

A capacitor will correct the situation by dumping its stored energy within, and pass it on to the inductive load. The wires connecting them together should be as short as possible.

In engineering terms-That way the power factor is corrected because the lagging voltage phase catches up with current phase. The reason it doesn't work with heaters and resistive loads, is because both current and voltages phases are in line with each other from the power source.

Re: Electric Power Conservers: Scam or No Scam?

Capacitor banks are normally used in industrial accounts because of cost and size. And also because some factories using a lot of motors, maximizing its effectiveness and justifies expense.

It is therefore less effective for other factories that doesn't have such type of loads, nor for family use.

Re: Electric Power Conservers: Scam or No Scam?

now that's a better explanation
it wouldn't have any better

anyway that's what i've been trying to say but couldn't 🙂
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Re: Electric Power Conservers: Scam or No Scam?

Sirs,

If i am running 5 freezers 24/7 plus the regular appliances plus some power tools, would those power saving gadgets sold at malls help?

My electric bill says that i consume an average of 1000KW / month.

Need some advise.

Thanks

Re: Electric Power Conservers: Scam or No Scam?

Ramon

our bill is more expensive than yours. although an aircon is running 24/7 and two refs. then another aircon for 8 hours

omni has a new product coming out for MEASURING actual consumption per appliance. you plug it to the socket then plug the appliance to it. Saw it at a demo and not sure if its being sold for th epublic yet

we could use that to quantify if those power savers really work, now i just need to get my hands on one......

Re: Electric Power Conservers: Scam or No Scam?

Hi Bee,

yes sir, i agree with you on the bills.

Re: Electric Power Conservers: Scam or No Scam?

Many of the bigger malls have those consignors selling power saving gadgets and are wiling to change item (no, normally they don't return cash) in case you are not satisfied with their product.

You can always challenge those people (from the supplier/ consignor) giving demo that you will return the item if their claim is not up to par. Don't forget to ask all details and questions before making the purchase and get the name of that Demo guy or gal.

Then you need to decide within 7days if you're truly satisfied or return the item. just make sure there are no scratches nor damaged sections and have a good reason/ explanation for the customer service. 🙂

Re: Electric Power Conservers: Scam or No Scam?

For Residential users, power factor correction is useless since it will not reflect on your bill.
I have actually bought a consumer grade PowerMeter just to prove my theory that these power savers are useless.
You can search in sulit for the device I have. search for Kill-a-watt in sulit

Re: Electric Power Conservers: Scam or No Scam?

can you fill us in on your theory? would be nice to know why it works or not...

Re: Electric Power Conservers: Scam or No Scam?

did you mean this meter?

Re: Electric Power Conservers: Scam or No Scam?

Yes. that is the meter.

Anyway, I had a hunch that the 'powersavers' are just power factor correction devices. Didnt want to spend money just to open it and see what's inside. I had the chance to borrow similar devices from friends, and when I opened it, a capacitor is connected in parallel to the terminals. the running lights is a different story, it's just for show.
ANyway, in electrical systems, there is such a thing as APPARENT POWER and REAL POWER.
Meralco charges every consumer the REAL POWER consumption.
When Apparent power is greater than the real power, inefficiency is present. And this ratio between real power and apparant power is called PF or power factor. For residential and commercial users, Meralco does not penalize us for inefficiency or low power factor. This is different though for industrial users. Meralco penalizes them for not being efficient.
So power factor correction in our houses does not affect the monthly billing.
Also, most appliances with motors have their power factors already corrected. A capacitor is usually used to correct power factor because most inefficiencies are cause by an inductive load (ie motors, ballasts) and a capacitive correction brings back efficiency to almost 100%.