Boots – shoes – and leggings
Patent
1993-10-15
1996-08-27
Ramirez, Ellis B.
Boots, shoes, and leggings
364581, 364483, 395907, 395915, 361 90, 361 91, 361 92, 361 93, H02J 1300
Patent
active
055507514
ABSTRACT:
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 behavior and the performance of various fault detection techniques, the expert forms a belief as to whether a high impedance fault has indeed occurred. The expert's beliefs may be adjusted with an elliptic formula, and then used to weight the status output of each technique. The weighted multiple technique outputs are combined to determine whether a high impedance fault has occurred. The expert's beliefs are calibrated during initial start-up by comparison with a confirmed performance history of the detector using a scoring rule. The belief calibration may be included during operation to provide on-line adaption of the expert detector to the changing situations of the distribution circuit.
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Ramirez Ellis B.
The Texas A & M University System
Wachsman Hal D.
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