Surge arrester
AssigneeHitachi Energy Ltd
InventorsMartin Glass, Ektor Sotiropoulos, Bernhard Richter
Life of this patent
Estimating the term…
Abstract
A surge arrester is provided that comprises an elongate housing, an active member, and an enclosure. The elongate housing has an interior comprising an interior surface that extends along a longitudinal axis between a first end and a second end of said housing. The active member is arranged at least partially within the interior. The enclosure is fixed to or integrally with the housing and closes the interior at the first end. The enclosure comprises a predetermined breaking line. In the event of a fault condition, e.g., a short circuit condition, the pressure within the housing increases and the predetermined breaking line allows for a defined breaking of the enclosure.
Claims20
A surge arrester, comprising
- an elongate housing having an interior comprising an interior surface that extends along a longitudinal axis between a first end and a second end of said housing;
- an active member, arranged at least partially within the interior and extending along the longitudinal axis;
- and
- an enclosure that is fixed to or integrally formed with the housing and that closes the interior at the first end,
- the enclosure comprising a predetermined breaking line, the active member having a cross section that extends, at least partly, radially beyond the breaking line, and
- the breaking line extending around the longitudinal axis, defining an inner enclosure portion and an outer enclosure portion.
A system, comprising:
- an electrical equipment;
- and
- a surge arrester connected to the electrical equipment, the surge arrester comprising:
- an elongate housing having an interior comprising an interior surface that extends along a longitudinal axis between a first end and a second end of said housing;
- an active member, arranged at least partially within the interior and extending along the longitudinal axis;
- and
- an enclosure that is fixed to or integrally formed with the housing and that closes the interior at the first end,
- the enclosure comprising a predetermined breaking line, the active member having a cross section that extends, at least partly, radially beyond the breaking line, and
- the breaking line extending around the longitudinal axis, defining an inner enclosure portion and an outer enclosure portion.
A method comprising:
- arranging an active member at least partially within an interior of an elongate housing of a surge arrester, the interior comprising an interior surface that extends along a longitudinal axis between a first end and a second end of said housing and extending along the longitudinal axis;
- fixing an enclosure to the housing to close the interior at the first end,
- the enclosure comprising a predetermined breaking line, the active member having a cross section that extends, at least partly, radially beyond the breaking line, and
- the breaking line extending around the longitudinal axis, defining an inner enclosure portion and an outer enclosure portion.
Dependencies are inferred from the claim text.