Schneider Electric Industries Sas

Sebastien Buffat

Pascal Houbre

David Loglisci

Remy Orban

Frédéric Toti-Buttin

Michel Rapeaux

Olivier Theron

Philippe Brunel

Audrey Olivier

David Granier

Patrick Mas

Stephane Sicard

Stephane Alban

Gilles Budillon

An electromagnetic actuator includes a fixed body, a moving part forming a magnetic core of the actuator and being movable in translation with respect to the fixed body between a retracted position and a deployed position, a magnetic piece forming a permanent magnet adjusted to generate a first magnetic force holding the moving part in the retracted position, and a coil adjusted to engender a second magnetic force opposed to the first magnetic force when the coil is supplied with an electrical excitation current. The moving part includes one or more notches formed in a body of the moving part.

Electromagnetic actuator and electrical switching unit including this actuator

A device for measuring electric currents includes Rogowski-type current sensors, each configured to measure an AC electric current in an electrical conductor, each sensor including coils that are electrically connected in series to form a measurement circuit and being joined to one another to delimit a central zone of this sensor to receive the corresponding electrical conductor. One of the coils is common to the first and second sensors, this common coil being electrically connected to the first and second measurement circuits.

Device for measuring electric currents

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

A sensor for measuring current of the Rogowski-torus type including a carrier made of a magnetic materials and a secondary winding wound on the carrier in order to deliver an electrical signal representative of a current flowing in a conductor passing through the interior of the torus. The carrier is made essentially of a moulded rigid plastic material and includes at least one exterior recess distributed over the length of the body of the carrier. The recess includes at least two grooves that are separated by a partition. The protecting and measuring device and the electric circuit breaker include such a current sensor.

Sensor for measuring current of the Rogowski-torus type, protecting and measuring device and electric circuit breaker including such a sensor

A device for measuring differential current designed to measure differential current in at least two current lines, comprising a first magnetic circuit designed to surround the current lines, forming a primary circuit of a transformer, a first secondary winding wound around said magnetic circuit and forming the secondary circuit of the transformer, a metal shielding surrounding the first secondary winding and the magnetic circuit. The device for measuring differential current in addition comprises at least one second secondary winding surrounding at least a part of the metal shielding. This second winding forms a second magnetic circuit of at least one second current sensor designed to supply an electric signal representative of a current flowing in at least one current line.

Measuring device for measuring differential current, trip module comprising one such measuring device and switchgear unit having one such module

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Tullins, France

Sebastien Buffat