Stromabtastvorrichtung und Vorrichtung auf der Basis einer Zweidrahtschaltung

Details

Veröffentlichungs-Nr.

EP4779322

Anmeldetag

16. Januar 2026

Veröffentlichung

22. Juli 2026

Rechtsraum

EP

IPC

G01R1/20

Abstract

Embodiments of the disclosure provides a current sampling apparatus based on a two-wire circuit and a device. The current sampling apparatus comprises a sampling circuit arranged between a high voltage side and a low voltage side of a line to which the current sampling apparatus is connected; a sampling resistor connected in series in the sampling circuit to form a sampling current under a potential difference between the high voltage side and the low voltage side; a compensation circuit arranged close to the sampling resistor and adapted to provide a compensation current to generate a compensation magnetic field during flow of the sampling current in the sampling circuit, and the compensation magnetic field being adapted to at least partially offset an induced magnetic field of the sampling circuit; and a pair of voltage sampling interfaces respectively arranged at the two ends of the sampling resistor.

Anmelder

Firma

SCHNEIDER ELECTRIC INDUSTRIES SAS

Land

🇫🇷 Frankreich

Fachgebiete