Invention Grant
- Patent Title: Method for determining the operating status of a mv switching device of the electromagnetic type
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Application No.: US15512797Application Date: 2015-08-05
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Publication No.: US10395868B2Publication Date: 2019-08-27
- Inventor: Andrea Bianco , Gabriele Valentino De Natale , Andrea Ricci , Marco Testa
- Applicant: ABB Schweiz AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Taft Stettinius & Hollister LLP
- Agent J. Bruce Schelkopf
- Priority: EP14185581 20140919
- International Application: PCT/EP2015/068048 WO 20150805
- International Announcement: WO2016/041691 WO 20160324
- Main IPC: H01F7/18
- IPC: H01F7/18 ; H01H47/00 ; H01H47/02 ; H01H50/20 ; H01H50/44 ; H01H50/54 ; G01R31/327

Abstract:
A method for determining the operating status of a MV switching device is provided. The method includes providing a test signal to said test coil for an observation period of time. Measuring data is obtained which is indicative of the voltage at the terminals of the test coil and of the current circulating along the test coil during the observation period of time. Observation data is calculated which is indicative of the electric behavior of the test coil at the end of said observation period of time. A transformation function is selected which is indicative of the electromagnetic behavior of the electromagnetic actuator. First estimation data is calculated which is indicative of the operating status of the electromagnetic actuator.
Public/Granted literature
- US20170250042A1 METHOD FOR DETERMINING THE OPERATING STATUS OF A MV SWITCHING DEVICE OF THE ELECTROMAGNETIC TYPE Public/Granted day:2017-08-31
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