Arcing Fault Detector.
Patent, Filed 29 Apr 82, patented 14 Apr 87,
DEPARTMENT OF THE NAVY WASHINGTON DC
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This patent relates to systems for protecting electrical circuits, and in particular to an arcing fault detector which detects the presence of an arcing fault within an enclosed electrical equipment unit. The arcing fault detector uses the thermodynamic conditions created by an arcing fault within a vented electrical equipment enclosure to quickly activate a protective device which causes tripping of the supply circuit breakers. A plurality of temperature sensors are located within the enclosure near the top, and a differential pressure sensor is located in the external wall of the enclosure approximately midway between the vents to compare internal and external pressure. The intelligence from the sensors is processed by a fault protector which controls the tripping of the circuit breakers.
- Electric Power Production and Distribution
- Electrical and Electronic Equipment