Verfahren und Vorrichtung zur Überwachung einer Schalteinheit in einem Festkörperschutzschalter

Details

Veröffentlichungs-Nr.

EP4760288

Anmeldetag

9. Dezember 2025

Veröffentlichung

17. Juni 2026

Rechtsraum

EP

IPC

G01R31/327

Abstract

A switching unit includes a first group of power devices, a first and second electrodes of each power device are respectively electrically connected to a first and second nodes. A method for monitoring a switching unit in a solid-state circuit breaker includes: during a period in which a main circuit current flows from the first electrode to the second electrode in a first direction, causing a first turn-off voltage to be applied to a gate of each power device in a first time period; in response to the application of the first turn-off voltage, obtaining a voltage across a first capacitive element, where the first capacitive element and a first resistive element are connected in series between the first and second nodes; and based on the voltage across the first capacitive element, determining whether a turn-off function of each power device of the first group of power devices is normal.

Anmelder

Firma

SCHNEIDER ELECTRIC INDUSTRIES SAS

Land

🇫🇷 Frankreich