Apparatus and method for monitoring and/or analysis of electrical machines during operation
CA 2498060 C · Owner: General Electric Technology Gmbh · Inventors: Kirchhoff, Ingo; Hobelsberger, Max; Posedel, Zlatimir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an apparatus and a method for monitoring and/or analysis of electrical machines during operation, wherein the electrical machine has at least one generator (4) with a shaft (2) and drive means (1) for driving this shaft (2) wherein , the shaft (2) is grounded at the first end of the generator (4), and wherein a measurement unit (6) for measurement of shaft voltage (U RC(t)) and/or shaft current (I RC(t)) as a function of time is provided on the shaft (2) at the second end of the generator (4). An apparatus such as this allows the combined and simultaneous measurement of various fault states by supplying signals for the shaft voltage (U RC(t)) …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 5, 2003 and granted March 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.