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Current draw from an MIT Z Stablizer ll

I find it very beneficial but would like an idea of power wasted. Thanks for the help. (For those who don't know of these older products they are designed to remove noise ie energy outside the 50 to 60 cycle range and to improve "power factor" which is is the term used to describe how "in phase" the voltage and amperage functions of the power are. The closer the match the better the overall power delivery).
ptss
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koestner
672 posts
 
Plug the cable into one of those Kill-A-Watt devices and see if any watts are being used.
ptss OP
1,964 posts
 
Liz, it does not run hot.
Koestner-thanks,I'll get one.
kijanki's avatar
kijanki
4,430 posts
 
Reducing power factor due to phase shift between voltage and current is one thing but don't forget that amps present itself as nonlinear load because of rectifiers. Current is delivered in narrow spikes of high amplitude repeated 120Hz. In frequency domain it represents a lot of energy in high harmonics of 60Hz. Power companies cannot effectively measure this (RMS much higher than Average Value) and it costs them money. On our side problem is different - narrow spikes of high amplitude create huge voltage drops and a lot of noise. Whole thing is one big noisy switcher operating at 120Hz. The best thing is to remove higher harmonics (noise) by filtering them out. Opening my Furman Elite PFi20 power conditioner reveals huge inductor and capacitor, basically a filter. Capacitor across the load outlet stores energy to deliver current pulses while inductor between this capacitor and mains removes upper harmonics (flattens spikes).
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