Invention Grant
- Patent Title: Single-pole, single current path switching system and method
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Application No.: US14832861Application Date: 2015-08-21
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Publication No.: US09726726B2Publication Date: 2017-08-08
- Inventor: Christopher H. Bock , Christopher J. Wieloch , James J. Kinsella , Stefan T. Dziekonski
- Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
- Applicant Address: US OH Mayfield Heights
- Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee Address: US OH Mayfield Heights
- Agency: Fletcher Yoder P.C.
- Main IPC: F02D41/20
- IPC: F02D41/20 ; G01R31/327 ; H01H50/16 ; G01K7/00 ; H01H47/00 ; H01H47/22 ; H01H50/00 ; H01H47/26 ; H01H47/02 ; H01H50/38 ; H01H50/32 ; H01H89/00 ; H02P1/26 ; H01H9/26 ; H01H9/30 ; H02P1/32 ; H01H9/56 ; H01H71/08

Abstract:
One embodiment describes a three-phase electromechanical switching device, which includes three single-phase switching devices mechanically and electrically coupled in parallel with one another, each single-phase switching device including a direct current electromagnetic operator that in operation receives a direct current control signal for switching of the device, stationary contacts disposed in a respective device housing, and a movable assembly that in operation is displaced by energizing the operator and that include movable contacts that open and close, with the stationary contacts, a single current carrying path through the respective single-phase switching device; in which each of the single-phase switching devices receives control signals from control circuitry coupled to the operators of the respective single-phase switching devices to cause at least one of the single-phase switching devices to open or close the single current carrying path at a desired time coordinated with a current zero-crossing or a predicted current zero-crossing of a phase of three-phase power.
Public/Granted literature
- US20160133414A1 SINGLE-POLE, SINGLE CURRENT PATH SWITCHING SYSTEM AND METHOD Public/Granted day:2016-05-12
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