Patent ID: 6995330
Filing Date: 2006-02-07
Classification: H01H

Abstract:
1. A high or medium voltage gas insulated earthing switch comprising at least one conducting bar in a hermetically sealed enclosure that will be filled with a dielectrically insulating gas, with a corresponding earthing contact, a phase contact fixed to the said bar that will be electrically connected to the earthing contact to earth the said bar, characterised in that the earthing contact is installed fixed in the enclosure facing the phase contact, leaving a free space between this phase contact and the earthing contact, and in that a switching element is installed free to move in the enclosure between the phase contact and the earthing contact in a plane transverse to the conducting bar, this switching element comprising firstly a switching contact that short circuits the space left free between the phase contact and the earthing contact to electrically connect the earthing contact and the phase contact when the earthing switch is closed, and secondly an at least partly electrically insulating support on which the switching contact is fixed such that the switching contact is electrically isolated from the phase contact and from the earthing contact when the earthing switch is in an open position.