There are some power saver devices shown in TV advertisements that they can save electricity bills.
But, does they really cut down electricity bills as advertised? Does they really cut down bills by 50%?
No.
How they can save bills and how much ?
They merges the cosine spikes in electrical waveform resulting in less spike height, so they can save bills a bit. They are simply plugged into wall plug and they do that by help of a capacitor. There are some indicator lights in the device which does nothing but just shows power ok. It can save power around 10% actually.
Which appliances power consumption it can make low?
Only inductive loads produce cosine waves and it can be useful in cases of electric heaters, air conditioners, electrical motors, induction cookers, etc.
How to make it?
To make power saver circuit, you just need a capacitor of 5-10µF of 220V or 440V according to your area grid voltage is 110V or 220V.
For this, I’d recommend buying the oil based capacitors that are used in ceiling fans. They are just 2.5µF, so you need to parallel 2 to 4 capacitors. After that, just connect them into plug and see it works.
You can also use any other oil filled capasitors, like used in water pumps, to make power saver circuit.
Just choose the one with correct voltage rating and make sure they're non-polar capacitors.
Bottomline: If you run AC, refrigerator, electric water pump, etc then connect a capacitor at the same plug to save some bill.
Good reading: http://electrical-engineering-portal.com/the-real-truth-behind-household-power-savers Thanks Prakash!
what happens to your capacitor when there is power failure? capacitors store energy, right? when the power resumed, stored energy in the capacitor is now compunded. How do you discharge the capacitors when there is power outage? Outages when frequent will eventually damage your capacitors - I think your wrong in saying capacitors dont explode- it does explode-esp. dry-type ones.
Hi Arup. your idia is marvalous.
No offense, trust me, this doesn't work now lower your bill. I already did these.
The best value for power saver capacitor is 70µF or higher @450VAC. Using low value capacitors will result in very very minimal (i.e. 1-4Watts) of saving. I tried using 2 pcs 40µF and i was able to save 15Watts on my refrigerator, 40Watts saving on 1HP airconditioner.
Hi! Arup,
what kind of capacitor is this? polar or non-polar?
Dear mr. Arup as you istructed to directly plug the capacitor i did it. But i think it will draw high current.
I have put two 2.5 micro farad capacitor in parallel will this work
Sir Good day! Can we use any kind of capacitor as long as it is 10uF 440V?
And if i purchase this capacitor, will i just directly connect it to the wall outlet?
hy arup. plz ap mujhy ye btao k main kitne uf ka capasitor lagao meri equipment ye he 1frij, 5saver,3ceilng fan,1 room colar, water pump 1, 1.5horse power
Hi,
Before you write a artcal, please get at least a fundamental knowledge about the subject. This method is not working.
This trick not usefull
i admire your selflessness
You should read this first before doing anything...
http://electrical-engineering-portal.com/the-real-truth-behind-household-power-savers
Kindly send a coplete circuit for power saving on my E mail address change thanks
The circuit is nothing, just connect the capacitor parallel to your electrical applience.
Thanks for rely advice is required.My i connect the 4 no 2.5uf capictor in parral or used one 8uf capictor instead of four.oil or dry recommend type of capcitor.I shall be very thankful to you khalid.
Hi Khalid, it's better to use 4 capacitors than a single, Oil filled capacitors are recommanded.