US 12,451,682 B2
Multiple-mode load protection device
Andreas Pascal Raudies, Aarau (CH); Reynald Kaltenrieder, Muhen (CH); Ashwinkumar Patel, Suhr (CH); and Mark Roger Bjerke, Waukesha, WI (US)
Assigned to Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed by Rockwell Automation Switzerland GmbH, Aarau (CH)
Filed on Mar. 28, 2023, as Appl. No. 18/191,288.
Prior Publication US 2024/0332944 A1, Oct. 3, 2024
Int. Cl. H02H 3/08 (2006.01); H02H 7/08 (2006.01)
CPC H02H 3/08 (2013.01) [H02H 7/0833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A protection device, comprising:
three power inputs;
three power outputs;
three circuits, each circuit corresponding to one of the three power inputs and one of the three power outputs;
a switching system coupled to the three circuits;
a processor; and
a memory comprising:
phase loss logic that, when executed by the processor, detects a phase imbalance between the three power inputs and transmits a phase loss signal to the switching system in response to the phase imbalance exceeding an imbalance threshold value;
protection logic that, when executed by the processor, analyzes electrical values associated with the three power inputs and transmits a signal to the switching system to impede current flow within the three circuits and to the corresponding power output based on at least the electrical values exceeding an overload threshold value; and
switching logic that, when executed by the processor, enables the phase loss logic based on detecting a first mode of two modes of the protection device and disables the phase loss logic based on detecting a second mode of the two modes such that the phase loss logic is inhibited from detecting the phase imbalance.