Shatter protection

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11189400
APP PUB NO 20210166843A1
SERIAL NO

15734369

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Shatter protection for a high voltage apparatus with a ceramic insulator includes at least one electrically insulating tube including a plurality of holes going through an envelope surface. The electrically insulating tube has a diameter such that there is a minimum distance between the tube and the ceramic insulator when arranged concentrically. A method for producing a shatter protection includes winding a first helix shape of the electrically insulating fiber composite material at a first pitch such that there is a first gap between the winding turns, and winding a second helix shape of the electrically insulating fiber composite material onto the first helix shape in the opposite direction and at a second pitch, such that there is a second gap between the winding turns. Thereby forming a first electrically insulating tube with holes formed by the first and second gap between the winding turns.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ENERGY LTDBROWN-BOVERI-STRASSE 5 ZÜRICH 8050

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Henriksson, Magnus U Luleå, SE 2 0
Holmberg, Anders Öjebyn, SE 11 29
Hortlund, Stefan Piteå, SE 2 24
Johansson, Andre Öjebyn, SE 2 0

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