Title:
ARC FAULT CIRCUIT INTERRUPTER
Document Type and Number:
WIPO Patent Application WO/2018/217883
Kind Code:
A3
Abstract:
An arc fault protective wiring device (10) disposed in an electrical distribution system is disclosed, the device including a pulse frequency digitizer (36), the pulse frequency digitizer being configured to receive a plurality of pulses, each pulse being representative of an instance that the derivative of the current through a neutral conductor (22) exceeds a first predetermined threshold, the pulse frequency digitizer further being configured to produce a digital signal, the digital signal being representative of the instances at which a frequency of the plurality of pulses exceeds a predetermined threshold; and at least one processor (40) configured to trigger a trip mechanism (42) to electrically decouple a line terminal (12, 14) from a load terminal (16, 18) based, at least in part, on the digital signal.
Inventors:
HAINES JOSHUA (US)
PACKARD THOMAS (US)
TESTANI ANTHONY (US)
PACKARD THOMAS (US)
TESTANI ANTHONY (US)
Application Number:
PCT/US2018/034117
Publication Date:
February 07, 2019
Filing Date:
May 23, 2018
Export Citation:
Assignee:
PASS & SEYMOUR INC (US)
International Classes:
H02H1/00
Foreign References:
| US5825598A | 1998-10-20 | |||
| US5834940A | 1998-11-10 | |||
| US6504692B1 | 2003-01-07 |
Attorney, Agent or Firm:
GRAY, Jonathan et al. (US)
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