(under subclass 57) Subject matter including means for determining the presence of a defect or disturbance in an electrical component, equipment, or line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
63, for battery monitoring.
106, for signal frequency or phase correction.
107, for circuit tuning.
183+, for diagnostic analysis in a performance or efficiency evaluation system.
191+, for noise removal or suppression. SEE OR SEARCH CLASS
324, Electricity: Measuring and Testing, 500+ for fault detecting in electric circuits and of electric components.
364, Electrical Computers and Data Processing Systems,
528.27, for system protection in a power generation or distribution system.
714, Error Detection/Correction and Fault Detection/Recovery, appropriate subclasses for error detection, correction, recovery or prevention in pulse code data or computers, especially
