US 12,444,919 B1
System for operation of enhanced circuit breakers
Behrad Aria, Alameda, CA (US); David Buuck, Port Ludlow, WA (US); and Alin Theodor Iacob, Sunnyvale, CA (US)
Assigned to AMAZON TECHNOLOGIES, INC., Seattle, WA (US)
Filed by AMAZON TECHNOLOGIES, INC., Seattle, WA (US)
Filed on Mar. 28, 2023, as Appl. No. 18/191,504.
Int. Cl. H02H 3/00 (2006.01); H02H 1/00 (2006.01); H02H 5/04 (2006.01)
CPC H02H 3/00 (2013.01) [H02H 1/0007 (2013.01); H02H 5/047 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a device comprising:
a line terminal configured to connect to a power source;
a load terminal configured to connect to a load;
one or more actuators to operate a first switch and a second switch;
the first switch comprising:
a first contact connected to the load terminal; and
a second contact configured to be separated from the first contact by the one or more actuators;
the second switch comprising:
a third contact connected to the second contact of the first switch;
a fourth contact connected to the line terminal; and
a trip mechanism configured to separate the third contact and the fourth contact responsive to operation of the one or more actuators;
one or more sensors; and
control circuitry to:
acquire sensor data using the one or more sensors;
determine, based on the sensor data, a fault condition;
operate the one or more actuators at a first time to actuate the trip mechanism and open the second switch; and
operate the one or more actuators at a second time to open the first switch, wherein the second time is after the first time.