Patent ID: 8781765
Filing Date: 2014-07-15
Classification: G01R

Abstract:
1. A method for analyzing electrical shorts in field windings of a synchronous machine having a rotor using a magnetic flux probe, said method comprising: monitoring flux signals generated by the flux probe wherein the flux signals are indicative of magnetic flux emanating from the field windings; electronically storing flux data obtained from the monitored flux signals and indicative of electrical shorts in the field windings; automatically counting the shorts in each identified field winding, wherein the counting of the shorts includes determining a degree of reduction in the flux data from one pole of the generator as compared to the flux data obtained from another pole of the generator and calculating the count of shorts based on the degree of the reduction, and the counting of the shorts further includes identifying a range which includes the degree of reduction wherein the range is one of a predefined group of ranges of reductions, and the count is determined based on the identified range, and automatically displaying information identifying the field windings with shorts and automatically displaying the count of the shorts in each field winding.