Verfahren und Vorrichtung zur Steuerung einer Lichtbogenunterdrückungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4749299

Anmeldetag

22. November 2024

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

G01R31/08, H02H9/08

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 perform (110) a current injection into the neutral point of the three-phase electric network by using a frequency different from a frequency of the three-phase electric network, obtain (120) a value of a zero-sequence impedance of the three-phase electric network and/or obtain (120) a value of a zero-sequence admittance of the three-phase electric network, and determine (130), based on the obtained value of the zero-sequence impedance and/or based on the obtained value of the zero-sequence admittance, whether to initiate a tuning of the arc suppression device of the three-phase electric network.

Anmelder

Firma

ABB SCHWEIZ AG

Land

🇨🇭 Schweiz