How does an electricity power saver work?

We have bought a device that the company claims will help reduce our electricity bill (of our house) by 25%. The same device can also act as a line tester. Somebody tell me how does a device reduce electricity consumption.

Asked By: blitz_krieg - 11/24/2009
Best Answer - Chosen by Asker
Hey Blitz, Hypnobunny is basically right. The device you are referring to, the Powersaver, Powermizer, or one of the other names it operates under was really designed for industrial applications of the past. In shops, large motors were victims of something called, "Power Factor." This is a widely misunderstood side... More
Answered By: Rudydoo - 11/24/2009
Additional Answers (4)
There are a number of devices on the market which deal with the large currents that are drawn when motors are starting up. As I understand it these devices continually draw power to keep some capacitor energy storage charged up, and when a motor kicks on the current surge to the motor is supplied mostly from the... More
Answered By: pegminer - 11/24/2009
They don't save power. Your power meter, even if it is 30 years old, does not measure thing like power factor.
Answered By: hypnobunny - 11/24/2009
First thing is to check whether it has really reduced your electricity consumption ( kWh) or not. Most probably it would not have... More
Answered By: Freefallingbody - 11/25/2009
you got some excellent answers here...I run a large condo complex and these guys tried to sell me 80 at " a really good price"..........once you look at the science, as your other answers told you, you realize it doesn't apply to small residential systems... More
Answered By: yankee_sailor - 11/27/2009
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