Entregungssystem für Induktive Schaltungen

Details

Veröffentlichungs-Nr.

EP4033657

Aktenzeichen

EP21153278

Anmeldetag

25. Januar 2021

Veröffentlichung

5. März 2025

Erteilung

5. März 2025

Rechtsraum

EP

IPC

H02K19/36H02K19/26H02P9/12

Abstract

A de-exciting system (15) for dissipating energy from an inductive circuit (1, 2) that comprises at least one coil (1), adapted to be attached to said inductive circuit (1, 2) and comprising: • a series connection of a discharge resistor (4) and a unidirectional discharge switching element (6), said series connection being arranged such that, if the de-exciting system (15) is attached to the inductive circuit (1, 2) and the discharge switching element (6) is in a conducting state, a closed conducting path comprising the coil (1) and the discharge resistor (4) is formed; • a unidirectional bypass switching element (5) that is connected in parallel to the discharge resistor (4) such that, if the de-exciting system (15) is attached to the inductive circuit (1, 2) and both the discharge switching element (6) and the bypass switching element (5) are in a conducting state, a closed conducting path comprising the coil (1), the discharge switching element (6), and the bypass switching element (5) is formed; and control means configured to: in a first de-excitation phase, switch both the discharge switching element (6) and the bypass switching element (5) into a conducting state, and in a second de-excitation phase, switch the bypass switching element (5) into a non-conducting state, while keeping the discharge switching element (6) in the conducting state.

Anmelder

Firma

ABB Schweiz AG

Land

🇨🇭 Schweiz

Fachgebiete