US 11,796,607 B2
Sensor, circuit breaker, charging cable and charging station
David Toth, Rodenbach (DE)
Assigned to Magnetec GmbH, Hanau (DE)
Appl. No. 17/762,833
Filed by Magnetec GmbH, Hanau (DE)
PCT Filed Jun. 15, 2021, PCT No. PCT/EP2021/066052
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2021/259699, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 102020116428.9 (DE), filed on Jun. 22, 2020.
Prior Publication US 2023/0098196 A1, Mar. 30, 2023
Int. Cl. G01R 31/52 (2020.01); G01R 15/18 (2006.01); G01R 19/10 (2006.01); G01R 19/165 (2006.01); H02H 3/34 (2006.01)
CPC G01R 31/52 (2020.01) [G01R 15/18 (2013.01); G01R 19/10 (2013.01); G01R 19/1659 (2013.01); H02H 3/34 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a sensor for the universal-current sensitive determination of an electric differential current, the sensor comprising a magnetic field-sensitive component, a first main winding, a test winding, and a shield,
the magnetic field-sensitive component comprising a through-opening, the through-opening of the magnetic field-sensitive component being formed, in cross section, as an oval having two axes of symmetry,
the first main winding and the test winding surrounding the magnetic field-sensitive component by means of a plurality of windings in each case,
the shield comprising a receiving space which is designed for receiving the magnetic field-sensitive component, the first min winding, and the test winding,
the receiving space of the shield being delimited, in the radial direction, by a shield outside wall and a shield inside wall,
the shield inside wall defining a through-opening of the shield, the through the shield being formed as an oval having two axes of symmetry,
the shield comprising a peripheral gap in the region of the shield inside wall,
the sensor being designed for being arranged around at least two electrical conductors,
the through-opening of the magnetic field-sensitive component, having at least one clear width along an axis of symmetry,
wherein
the at least one clear width is in a range between 25.2 and 32 mm.