Dielektrisches Heizverfahren zur Feuchtigkeitsextraktion aus einem Aktiven Teil eines Transformators

Details

Veröffentlichungs-Nr.

EP4593041

Aktenzeichen

EP24153935

Anmeldetag

25. Januar 2024

Veröffentlichung

30. Juli 2025

Rechtsraum

EP

IPC

H01F27/14

Abstract

A dielectric heating method for moisture extraction from an active part (10) of a transformer (1) is provided. The method comprises a step of configuring a system including at least one an apparatus (2) configured to generate electric fields alternating at radio frequencies, wherein the electric fields penetrate at least part of regions between freely selectable electrodes (3). The method further comprises a step of operating the at least one apparatus (2) for drying at least one moist region (7) of the active part (10) of the transformer (1), wherein the at least one moist region (7) is located at least partially between the freely selectable electrodes (3), so that the at least one moist region (7) is exposed to the generated alternating electric fields, resulting in heat generation within the at least one moist region (7).

Anmelder

Firma

Hitachi Energy Ltd

Land

🇨🇭 Schweiz

Fachgebiete