A Vacuum Interrupter A Transformer Arrangement And A Method For Monitoring Vacuum Interrupter

Abstract: The disclosure relates to a vacuum interrupter (1) for an on load tap changer (10) the vacuum interrupter (1) comprising a cylindrical housing (12) arranged on an axis (z) said housing comprising a wall (14) enclosing a hermetically sealed inner volume (16) the wall (14) further comprising a ceramic bottom part (15) extending perpendicularly to the axis (z) the wall (14) of the housing (12) comprising a first optical interface (18) between the inner volume (16) and an outer environment (20) external to the housing (12) the first optical interface (18) being configured to be transparent to at least one optical wavelength the inner volume (16) comprising an optical guide (22) open to an environment of the inner volume (16) a switch (34) coaxially arranged with the housing (12) on the axis (z) within the inner volume (16) of said housing (12) the vacuum interrupter (1) further comprising a shield element (40) coaxially arranged with the switch (34) characterised in that the optical guide (22) is arranged recessed in relation to an inner surface (32) of the ceramic bottom part (15) of the wall (14) of the housing (12) and in that the shield element (40) is arranged between the switch (34) and the optical guide (22).

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents