Accession Number : ADD013337

Title :   Arcing Fault Detector.

Descriptive Note : Patent, Filed 29 Apr 82, patented 14 Apr 87,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Rivera, Neftali

Report Date : 14 Apr 1987

Pagination or Media Count : 9

Abstract : 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 use(s) 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 breaker(s). 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 breaker(s).

Descriptors :   *PATENTS, *CIRCUIT BREAKERS, *DETECTORS, *FAULTS, *INTERNAL PRESSURE, *TEMPERATURE SENSITIVE ELEMENTS, EXTERNAL, PRESSURE GRADIENTS, PROTECTION, THERMODYNAMICS, VENTS, WALLS

Subject Categories : Electric Power Production and Distribution
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE