Electrical measuring transformer
CA 1308451 C · Owner: Avocat, Jean-Paul · Inventors: Avocat, Jean-Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention comprises a single-phase or multiphase electrical measuring transformer, capable of converting an actual electrical magnitude into a value compatible with a measuring, counting, control or monitoring module such as in particular a current transformer designed for power metering. The transformer having a primary circuit, a secondary circuit, which comprises at least one commutable winding defining a transformation ration and thereby its operating range, characterised in that it comprises means for adapting the secondary configuration of the transformer to the selected operating range which means effect at least the commutation of the winding or windings in accordance with the …
Read the whole patent
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
- Granted October 6, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 2009.
- 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.