Compact earthing switch for gas-insulated switchgear assemblies

Details Compact earthing switch for gas-insulated switchgear assemblies Compact earthing switch for gas-insulated switchgear assemblies

2006-10-17

2006-10-17

Enad, Elvin (Department: 2832)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Air-current blowout

C218S080000

Reexamination Certificate

active

07122759

ABSTRACT:
A compact earthing switch (1′) is provided by a mounting lid (10) of the gas-insulated switchgear assembly (15) having a concave physical volume (100) which extends the gas chamber (9) and by the earthing switch fixed contact (12) being mounted on an inner side (10e) of the mounting lid (10) and being arranged at least partially in the physical volume (100) of the mounting lid (10). Exemplary embodiments relate, inter alia, to: an essentially cylindrical mounting lid (10; 10a10e); an earthing switch fixed contact (12) having a physical length (L) which is smaller than an axial physical depth (T) of the physical volume (100); and a large diameter (D) of the mounting lid (10) for simplified mounting and maintenance of active parts7a,7b) in the switchgear assembly (15). Advantages include: the compact design for the grounding device the ability of the earthing switch fixed contact (12) to be ready-mounted on the mounting lid (10); and the integration of the earthing switch fixed contact (12), which is integrated in the mounting lid (10), in a combined disconnector/earthing switch (1′).

REFERENCES:
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patent: 1 361 633 (2003-11-01), None
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Mamoru Okabe et al., “Serialization of Standard Gas Insulated Switchgear”, Hitachi Review, 2002, pp. 169 and 172-173, vol. 51, No. 5, (Cited in the specification).

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