Mittelspannungs-Sicherung

Details

Veröffentlichungs-Nr.

EP4542616

Aktenzeichen

EP23204057

Anmeldetag

17. Oktober 2023

Veröffentlichung

23. April 2025

Rechtsraum

EP

IPC

H01H85/06H01H85/18

Abstract

The present invention relates to a field of electrical fuses, especially fuse-links, used to provide an overcurrent protect to electric circuits. The present invention relates more particularly to the electrical fuses used in medium voltage applications.A goal of the invention is to provide an overcurrent protection in a medium voltage application, especially in a medium voltage direct current application, where a nominal current is relatively small compared to a breaking current.According to the invention a medium voltage fuse-link comprising a first cap, a second cap, a core with a first end and a second end, wherein on the first end is the first cap, and on the second end there is the second cap, and a fuse element connected to the first cap and the second cap, a first external cap, a second external cap, a fuse tube with a first end and a second end, wherein on the first end is the external first cap, and on the second end there is the external second cap, an arc quenching medium surrounding the fuse element. The first cap is electrically coupled with the first external cap by means of a first connector, and the second cap is electrically coupled with the second external cap by means of a second connector. The first cap, the second cap, the core, the first connector, the second connector, and the fuse element are placed inside the fuse tube. The fuse element is made of a precise resistive wire made of an metal alloy based on copper and nickel.

Anmelder

Firma

ABB Schweiz AG

Land

🇨🇭 Schweiz

Fachgebiete