Patent ID: 8368337
Filing Date: 2013-02-05
Classification: F24F,G01D,G01R,G05B,G05D,G06Q,H01R,H02J,H02P,H04L,Y02B,Y02P,Y04S,Y10T

Abstract:
1. An HVAC unit, comprising: a first transformer configured to receive power from a first and a second phase of a three-phase power source and to produce a first voltage waveform therefrom; a second transformer configured to receive power from said first and a third phase of said three-phase power source and to produce a second voltage waveform therefrom; and a system controller adapted to sample said voltage waveforms to determine a figure of merit of said three-phase power source, said system controller being further configured to operate said HVAC unit in response to said figure of merit.