High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Air-current blowout
Reexamination Certificate
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
C218S068000
Reexamination Certificate
active
07122758
ABSTRACT:
An insulated earthing switch for encapsulated, gas-insulated high-voltage switchgear assemblies is characterized in that an encapsulation-side earthing switch contact, a measuring electrode and an earthing switch housing are arranged altogether on a single earthing switch mounting side, and an encapsulation-side earthing switch contact and the measuring electrode are electrically insulated with respect to the earthing switch housing and the GIS housing. Exemplary embodiments contains an encapsulation-side earthing switch contact and a measuring electrode being electrically insulated from drive cables and drive rods; an encapsulation-side earthing switch contact in the form of a movable earthing switch contact or an earthing switch fixed contact; and an earthing switch housing being permanently electrically conductively connected to the GIS housing via a combined supporting and measuring flange.
REFERENCES:
patent: 3553397 (1971-01-01), Schmitz
patent: 3876846 (1975-04-01), Graybill
patent: 6759616 (2004-07-01), Rokunohe et al.
patent: 0196240 (1986-10-01), None
patent: 99/52119 (1999-10-01), None
patent: WO 9962154 (1999-12-01), None
Mamoru Okabe et al., “Serialization of Standard Gas Insulated Switchgear”, Hitachi Review, vol. 51, No. 5, 2002, pp. 169-173.
Holaus Walter
Manz Erwin
Schweizer Christoph
Sologuren-Sanchez Diego
ABB Technology AG
Enad Elvin
Fishman M.
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