Invention Grant
- Patent Title: Power contact health assessor apparatus and method
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Application No.: US17181083Application Date: 2021-02-22
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Publication No.: US11257633B2Publication Date: 2022-02-22
- Inventor: Reinhold Henke , Robert Thorbus
- Applicant: Arc Suppression Technologies
- Applicant Address: US MN Bloomington
- Assignee: Arc Suppression Technologies
- Current Assignee: Arc Suppression Technologies
- Current Assignee Address: US MN Bloomington
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H01H1/00
- IPC: H01H1/00 ; G01R31/327 ; H01H50/04 ; G01R31/40 ; H02H1/00 ; H02H3/08 ; H01H9/54 ; H02M3/156 ; H03K3/313 ; H03K17/60 ; H04W4/60 ; G06F3/0484 ; G06F3/04842 ; H04L67/1095 ; H04L67/148 ; H01H1/50 ; H02H3/06 ; H02H3/087 ; H02H7/26 ; H02H9/02 ; H02H9/08 ; H03K3/45 ; H01H47/00 ; H01H71/04

Abstract:
A power contact health assessor system includes a pair of terminals adapted to be connected to a set of switchable contact electrodes of a power contact and a contact separation detector configured to determine a time of separation of the set of switchable contact electrodes during deactivation of the power contact. The system includes a controller circuit operatively coupled to the pair of terminals and the contact separation detector. The controller circuit is configured to determine within a first observation window, a plurality of contact stick durations and an average contact stick duration. One or more additional observation windows with corresponding average contact stick durations are configured. A health assessment for the set of switchable contact electrodes may be based on a subsequent contact stick duration for a contact cycle after the first observation window and the corresponding average contact stick durations for the one or more additional observation windows.
Public/Granted literature
- US20210173538A1 Power Contact Health Assessor Apparatus and Method Public/Granted day:2021-06-10
Information query