US 11,705,712 B2
Arc fault circuit interrupter (AFCI) with arc signature detection
Boon Lum Lim, Singapore (SG); and Samuel Raj, Singapore (SG)
Assigned to Ze Chen, Yueqing (CN)
Filed by Ze Chen, Yueqing (CN)
Filed on Nov. 23, 2021, as Appl. No. 17/533,280.
Application 17/533,280 is a continuation of application No. 16/654,274, filed on Oct. 16, 2019, granted, now 11,228,168.
Application 16/654,274 is a continuation of application No. 15/269,513, filed on Sep. 19, 2016, granted, now 10,476,252, issued on Nov. 12, 2019.
Prior Publication US 2022/0085593 A1, Mar. 17, 2022
Int. Cl. H02H 1/00 (2006.01); H02H 3/16 (2006.01); G01R 19/02 (2006.01); H01H 71/04 (2006.01); H01H 83/04 (2006.01); H01H 71/62 (2006.01); H02H 3/04 (2006.01); G01R 19/165 (2006.01); G01R 19/04 (2006.01); H02H 3/38 (2006.01); G01R 31/52 (2020.01); H01H 71/58 (2006.01); H01H 83/20 (2006.01); G01R 31/12 (2020.01)
CPC H02H 1/0015 (2013.01) [G01R 19/02 (2013.01); G01R 19/04 (2013.01); G01R 19/16571 (2013.01); G01R 19/16576 (2013.01); G01R 31/52 (2020.01); H01H 71/04 (2013.01); H01H 71/62 (2013.01); H01H 83/04 (2013.01); H02H 3/044 (2013.01); H02H 3/16 (2013.01); H02H 3/38 (2013.01); G01R 31/1227 (2013.01); H01H 71/58 (2013.01); H01H 2071/044 (2013.01); H01H 2083/201 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An arc fault circuit interrupter, comprising:
a plurality of current arc signature detection blocks configured to output a plurality of corresponding current arc signatures;
a processor configured to receive each of the plurality of current arc signature from each of plurality of current arc signature detection blocks, respectively, and generate a first trigger signal;
a relay module configured to trip the arc fault circuit interrupter in response to the first trigger signal;
a reset button module configured to place the tripped arc fault circuit interrupter back into an operating condition;
a force trigger testing mechanism configured to trip the arc fault circuit interrupter; and
a test button configured to activate the force trigger testing mechanism even when the arc fault circuit interrupter is unpowered.