Verfahren und Vorrichtung zur Steuerung einer Lichtbogenunterdrückungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4749862

Anmeldetag

22. November 2024

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

H02H9/08, G01R31/08

Abstract

A method and apparatus for controlling an arc suppression device of a three-phase electric network, the arc suppression device having an adjustable admittance connected between a neutral point of the three-phase electric network and earth, the apparatus being configured to determine (110) a resonant frequency of a zero-sequence system of the three-phase electric network, determine (140) at least two frequencies for a current injection on the basis of the determined resonant frequency, perform (150) a current injection into the neutral point of the three-phase electric network by using the determined at least two frequencies, determine (160) a value of at least one parameter related to the three-phase electric network on the basis of the current injection, and use the determined value of the at least one parameter for adjusting (180) the admittance of the arc suppression device.

Anmelder

Firma

ABB SCHWEIZ AG

Land

🇨🇭 Schweiz