Stromwandler und Schaltanlage damit

Details

Veröffentlichungs-Nr.

EP4712119

Anmeldetag

5. September 2025

Veröffentlichung

18. März 2026

Rechtsraum

EP

Abstract

The present invention relates to a current transformer and a switchgear comprising the same, the current transformer comprising a current transformer body (1) that is formed by casting; a current transforming assembly (2) that is embedded in the current transformer body; and a primary conductor (3), the primary conductor (3) comprising a first end (31) and a second end (32), wherein one of the first end and second end serves as an input terminal of the current transformer, and the other serves as an output terminal of the current transformer, and wherein the first end is also constructed as a stationary contact of the current transformer. Since the terminal of the current transformer serves as a stationary contact, a separate stationary contact and a separate conductor connecting the current transformer and the stationary contact in the prior art are omitted, reducing the number of components and reducing costs. The current transformer also has an integrated temperature measuring device, which is able to more accurately measure the temperature of a movable contact that contacts the stationary contact and an electrical component where the movable contact is located, and is furthermore able to monitor the temperature of an external component, such as a copper busbar or a cable on a busbar side.

Anmelder

Firma

ABB SCHWEIZ AG

Land

🇨🇭 Schweiz