Patent ID: 7122758
Filing Date: 2006-10-17
Classification: H01H

Abstract:
1. An earthing switch, comprising an encapsulation-side earthing switch contact, an inner earthing switch contact and an earthing switch housing for accommodating an earthing switch drive and which is mechanically connected to a gas insulated switchgear (GIS) housing of the gas-insulated switchgear assembly on an earthing switch mounting side of the gas-insulated switchgear assembly, an electrically insulated measuring electrode being provided for making electrical contact with the encapsulation-side earthing switch contact from the outside, wherein a) the encapsulation-side earthing switch contact, the measuring electrode and the earthing switch housing are arranged commonly on the earthing switch mounting side, and b) the encapsulation-side earthing switch contact and the measuring electrode are electrically insulated against the earthing switch housing and the GIS housing, wherein the encapsulation-side earthing switch contact is an earthing switch fixed contact, that is electrically insulated from the earthing switch housing by means of a dielectric insulation, and the inner earthing switch contact is a movable earthing switch contact tube.