Son Agro Ballast Q for Electrical Engineers

[reefburnaby]

Hi,

Apparant power (VA) = voltage * current.

True power consumption (W) = power factor * apparant power.

True power consumption is the power that hydro charges us.

With that... Volt = 120V.

Magnatek/Universal 4.3 amps...we will say PF=0.9
True power = 464W

Venture 4.55 amps 0.9 power factor
True power = 491W

Advance 5.3 amps 0.8 power factor.
True power = 508W

Motors sit around the pF of 0.6 to 0.9. Electronic ballasts have a pF of near 1.0

And Darren is correct about the industrial surcharge of 25% for a PF of 0.7 and the PF is cause by the load...not hydro. Hydro provides power factor correction for households on the telephone poles (near the large hanging garbage cans on the telephone pole) and transformer cabinets.

- Victor.