Transducer for the measurement of polyphase current independently of frequency
CA 1069586 A · Owner: Instytut Elektrotechniki · Inventors: Owczarska, Maria; Patocki, Arkadiusz; Rudenski, Andrzej
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Disclosure, A transducer for the measurement of a polyphase current independent of frequency has a laminated magnetic core consisting of two rings separated from one another by a gap. At this gap there are slots with a winding connected to the polyphase current system to be measured. Over the circumference of the yoke of the core there is wound a measuring winding which has no magnetic linkage with the polyphase winding. This measuring winding is supplied with measuring voltage of sufficiently high frequency for the variation in impedance in the measuring winding due to the variation in magnetic flux in the yoke to be measured.
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.