Ölgefüllte Leistungsbuchse mit Druckausgleich durch einen Faltenbalg

Details

Veröffentlichungs-Nr.

EP3413319

Aktenzeichen

EP17188182

Anmeldetag

28. August 2017

Veröffentlichung

30. September 2020

Erteilung

30. September 2020

Rechtsraum

EP

IPC

H01B17/34H01F27/14// H01F27/04

Abstract

Oil filled power bushing with pressure compensation by bellow. The present invention concerns a liquid filled power bushing (1) comprising: - an insulator (11) comprising an insulator chamber (111) for receiving an insulating liquid (2); - an expansion chamber (14) communicating with the insulator chamber (111) for enabling an expansion or contraction of the insulating liquid (2); - an electrical conductor (13) located within the bushing (1) and extending through the expansion chamber (14) and the insulator chamber (111); characterized in that it further comprises a bellow (3) located inside the expansion chamber (14), the bellow (3) comprising an interior chamber (31) with variable volume, said interior chamber (31) communicating via a channel (32) with a space (4) filled with gas and located outside the expansion chamber (14) for enabling said gas to enter the interior chamber (31) in case of an expansion of the volume of the interior chamber (31) resulting from the contraction of the insulating liquid (2) and being released from said interior chamber (31) into said space in case of a contraction of the volume of the interior chamber (31) resulting from the expansion of the insulating liquid (2).

Anmelder

Firmen

Siemens Energy Global GmbH & Co. KG
Siemens Aktiengesellschaft

Land

🇩🇪 Deutschland

Fachgebiete