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Energy analysis fault detection system
(United States. Patent and Trademark Office, 1996-04-30)
A method and apparatus are provided for detecting an arcing fault on a power line carrying a load current. The apparatus monitors and analyzes energy values of the load current flowing through the line. The analyzed energy ...
Load extraction fault detection system
(United States. Patent and Trademark Office, 1996-04-09)
A method and apparatus are provided for detecting an arcing fault on a power line carrying a load current. The apparatus monitors, compiles and analyzes sample parameters taken from successive cycles of the power line load ...
ARC spectral analysis system
(United States. Patent and Trademark Office, 1996-11-26)
A method and apparatus are provided for detecting an arcing fault on a power line carrying a load current. The apparatus monitors and analyzes the load current to obtain frequency components. The analyzed load current is ...
Expert system for detecting high impedance faults
(United States. Patent and Trademark Office, 1996-08-27)
An expert detection system includes a method and apparatus for detecting high impedance faults occurring on a distribution circuit coupled to an AC power source. Based upon an expert's knowledge of high impedance fault ...
Load analysis system for fault detection
(United States. Patent and Trademark Office, 1997-02-04)
To prevent unnecessary power outages, and to remove feeder lines from service only when certain hazardous fault conditions occur, a load analysis system including an apparatus and method, monitors the load level of a feeder ...
Randomness fault detection system
(United States. Patent and Trademark Office, 1996-01-16)
A method and apparatus are provided for detecting a fault on a power line carrying a line parameter such as a load current. The apparatus monitors and analyzes the load current to obtain an energy value. The energy value ...