ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,749,991, issued on Sept. 29, was assigned to ABB SCHWEIZ AG (Baden, Switzerland).
"System and method for providing inrush current limiting for induction motor starting" was invented by Yuzhi Zhang (Apex, N.C.), Xiaoqing Song (Apex, N.C.), Pietro Cairoli (Cary, N.C.) and Taosha Jiang (Cary, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system for providing inrush current limiting for induction motor starting. The system utilizes a pre-start controller to initialize operation of a controller including multiple switches for controlling the voltage delivered to a motor having multiple phases. The pre-start controller activates each switch and deter...