Electronic relay of arc detection

Details Electronic relay of arc detection Electronic relay of arc detection

H - Electricity

02

H

348/36

H02H 3/00 (2006.01) H02H 1/00 (2006.01) H02H 3/16 (2006.01)

Patent

CA 1210847

ABSTRACT OF THE DISCLOSURE: A device for protecting an electrical equipment against a power arc produced along a bus bar system of such an equipment, which comprises an electronic arc detecting relay for sending, in case of arc fault, a tripping order to a tripping coil of a circuit breaker. The electronic relay detects the change in the voltage signal when an arc appears, and elaborates the tripping order in a logic processing cir- cuit, which processing circuit assures distinction between a temporary incident and a real arc fault. This protection device is used in cells and low or medium voltage electric switchboards.

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