Schneider Electric Industries Sas

David Granier

Philippe Brunel

Sebastien Buffat

Audrey Olivier

Sébastien Buffat

Frederic Gery

Michel Pelletier

Stéphane Sicard

François Roubardeau

Frédéric Gery

A winding head includes an annular magazine for storing the quantity of wire required to wind a torus, a first mechanism for driving the magazine in rotation, and a traveler for guiding the wire, at the output of the magazine, around the torus. The winding head includes a second mechanism, distinct from the first mechanism, for driving the traveler in rotation, such that the magazine and the traveler can be driven in rotation independently of one another.

Winding head for a torroidal winding machine, torroidal winding machine comprising such a winding head and method

The Rogowski coil type sensor for measuring current includes a carrier and at least one secondary winding. The winding includes: at least one internal layer with a high turn density, which layer is wound in an 'outward' first winding direction from the first end to a second opposite end of the winding, and at least one external layer with a low turn density, which layer is wound in a 'return' second winding direction. The external layer with a low turn density includes: a first compensating portion with a high turn density, which portion is of small length and close to the first end, a central portion with a low turn density, which portion is of large length, and a second compensating portion with a high turn density, which portion is of small length and close to the second end.

Rogowski coil type sensor for measuring current, measuring device and electrical circuit breaker including such a sensor, and method for winding such a sensor

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Apprieu, France

David Granier