voltage Optimiser - A Load Of Bull?!?!

[VMan]

Hi Guys,
Just reading through my spam and got an email for a voltage optimiser - claiming to save you money by reducing the voltage!!!

MyPlanet Voltis Voltage Optimiser

To me this is bull, if something need 1kW to work then it will consume 1kW..no?

My Math example:

At 240 volts:

1000watt appliance = 240 volts x 4.16Amps (240 / 4.16 = 57.7ohms)

My said appliance is heating a said volume of water and needs 1kw to boil. i.e 1000Watts for one hour

------------------------------

if i put a voltage reducer to 218V

At 218 Volts:
( V/R = I ) 218 / 57 = 3.77Amps

(P = I x V) 3.77 x 218 = 821.86 watts - ok customer maybe convinced and may buy one.


Now my said appliance still needs to boil the same amount of water, and will need the same amount of energy.

So 1 hour of the appliance on will only heat the water to 82% of needed value. there for will need to be on a total of 73mins to heat said water (deliver 1kW of energy to the water) - well maybe a bit more due to heat losses whilst heating the water.?!?!

so 1 Kwh will still be 1kWh regardless of voltage?!?!?

Am I right or wrong? or can anyone else explain how this may work -

(I believe a kW meter does not record Power factor(where a k/VA meter will) so even the power factor bull isn't right here.)

cheers

 

[Top Cat]

I used to fit industrial units like this. It was basically only for lighting, the idea being that a 15% reduction in Voltage meant that although there was a reduction in light level it was not noticeable.

This gave good savings on a multi story car park.

There are other units available that you have to split the circuits on what is of benefit and what is not. From what i gather from this is that it goes before C/U so no splitting of circs.

Do not know how long it would take to get your money back if the only thing of use is lights.

 

[electric-all]

We have had great success with the Voltis units (marshall tufflex) they will come and do a site survey (chargeable) and give you a calculation on payback time and savings. I have had 3 very large and reputable companies go through with the installation and so far feedback has been very positive, so worth a look into.

 

[sedgy34]

The unit is dropping the voltage to 220v numerous cycles throughout the day
by doing this over 12 months it gives you the saving of 10/17% appliances don't need 230/240v to work

 

[sedgy34]

The unit is dropping the voltage to 220v numerous cycles throughout the day
by doing this over 12 months it gives you the saving of 10/17% appliances don't need 230/240v to work

Another wholesaler I assume

 

[Knobhead]

So how many appliances aren't volage dependant to deliver a set output?

 

[ackbarthestar]

From the evidence produced so far is that these units in a domestic environment are a complete waste of money.
As stated, the only benefits would be lighting.
However, voltage liming and stabilization could prove to be useful as a possible anti-surge device.

 

[jdd]

My local wholesaler were flogging these about a year ago for £20 ish. Went in last week, now in the pound bin!

 

[Knobhead]

Wonder if they could make it a 2 for 1 offer. I’d try one then.

Still want free installation though. (Old thread)

 

[Thomas123]

they dont work on stuff like heating elements, as you still need the same amount of power to warm it up. its aimed more towards stuff like lighting/tv i thought?

 

[Geordie Spark]

they dont work on stuff like heating elements, as you still need the same amount of power to warm it up. its aimed more towards stuff like lighting/tv i thought?

It's aimed at getting fools to part with their hard-earned in my opinion.

 

[sedgy34]

So how many appliances aren't volage dependant to deliver a set output?

All appliances are European standard

 

[trev]

Is someone being paid to set up an account on here and bring up this topic every few weeks?
Electric-All's post is (Imho) a blatant piece of advertising spam designed to try to convince us that these things are worth looking at.
As my learned friend Tony said earlier, how many appliances are not voltage dependent to deliver a set output?
Funny how no one has tried to answer that one isn't it?
These things are snake oil. Nothing more nothing less

 

[Knobhead]

All appliances are European standard

What the hell has that got to do with thermal transfer rates or the torque at the shaft of a motor. KW in = KW out – efficiency.

Talk sense man!

 

[Jay Sparks]

I havent seen any other threads on this but today I got a call from a friend whos a free lance sales rep for conservatories, double glazing etc. Sometimes he asks the customer if they need any other work doing i.e gas, plumbing, electrics etc. So far Ive done two quotes for him which has led to over a £1000 worth of work for me. Anyway he calls today and asked about one of these "V Phase units".
I had never heard of one untill I come accross this thread (spoooky). I told him, if it fit after the meter, he would have to get the DNO to come and fit an ISO before I could fit it. This would of course incure a cost ££££££. After looking at the picture, you would also need alot of space to fit this monstrosaty, so I have told him, its not as simple as just selling it over the phone!! You need to look at the installation and see if it needs an ISO and if this thing will fit. Hopefully that has put him off trying to sell this crap but not put him off getting me more work. lol


Jay