Patent ID: 9000787
Filing Date: 2015-04-07
Classification: G01R

Abstract:
1. A method for low-power testing of a three-phase electric device using a testing circuit, the three-phase electric device generating three phase voltages, each of the three phase voltages being a sinusoidal voltage signal of same frequency and amplitude, the method comprising the steps of: generating a first reference voltage from a first phase voltage and a third phase voltage; generating a second reference voltage from a second phase voltage and the third phase voltage; comparing the first reference voltage and the second reference voltage for a determined number of times; switching off the testing circuit after comparing the first reference voltage and the second reference voltage for the determined number of times, the switching off the testing circuit facilitating low-power testing of the three-phase electric device; wherein the step of comparing the first reference voltage and the second reference voltage includes determining whether the values of the first reference voltage and the second reference voltage are equal to each other; and wherein the step of determining whether the values of the first reference voltage and the second reference voltage are equal to each other occurs at a single reference time.