US 4,876,417 AGranted

Combined high voltage connecting and grounding switch

AssigneeSiemens Aktiengesellschaft

InventorsDetlev Niederhuefner, Guenter Hahn, Andrzej Baczyzmalski

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Abstract

A combined disconnecting and grounding switch for high voltage use. A space-saving arrangement providing for automatic grounding when the switch is in an open circuit position. The disconnecting and grounding switch including a connection contact connectable with a contact having a high voltage potential wherein the contacts are vertically arranged one over the other. The switch also includes a switch rod designed to be vertically displaceable in its longitudinal direction. The switch rod has an upper conductive section and an adjoining lower non-conductive section. The switch rod can be moved up or down by a driving arrangement including a threaded shaft driven by a motor and a traveling nut assembly cooperating with the threaded shaft.

Claims6

Dependent claims

A high voltage disconnecting and grounding switch having a support structure and vertical switching movement comprising:

a first contact adapted to have a high voltage potential;
a connection contact connectable with the first contact wherein the first contact and the connection contact are arranged on the support structure vertically one above the other;
a grounding contact connectable with the connection contact wherein the connection contact and the grounding contact are arranged on the support structure vertically one above the other;
and a vertically translatable switch rod movably mounted to the support structure between closed and open circuit positions, the rod including a conductive section and a nonconductive section, wherein the conductive section connects the first contact and the connection contact when the switch is in the closed position and the conductive section connects the connection contact and the grounding contact when the switch is in the open circuit position.

1 more element

Dependencies are inferred from the claim text.