Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1998-07-09
1999-09-28
Hufsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
340324, 340361, 340650, 340253, 340638, 340660, 340661, 340663, 324 51, 324133, 324508, 361 59, 361 92, 361 93, 361 79, G08B 2100
Patent
active
059595370
ABSTRACT:
In a power distribution system, a reliable, accurate, and energy efficient fault circuit indicator is provided through a microcomputer-based fault current indicator design. First, reliability is improved inherently because the microcomputer, and the software embedded therein, replace the functionality of numerous discrete, less reliable electronic components found in prior designs. Second, the embedded software is capable of placing the fault current indicator in one of a number of energy conservation states, without compromising the fault current indicator's ability to provide information relating to the occurrence of a fault. Finally, greater fault current indication accuracy is achieved by detecting excessive line current, followed by a significant drop in line voltage.
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Banting John Frederick
Knabe Eugene Scott
Muench Frank John
Hufsass Jeffery A.
McGraw-Edison Company
Nguyen Tai Tan
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