US 12,400,816 B2 · High voltage circuit-breaker

Abstract

A high voltage circuit-breaker comprising a housing defining a volume for an insulating gas, at least two making and breaking (M&B) units arranged therein, each M&B unit comprising a first and second contact element for forming an electrically conductive connection, at least the first contact element is movable along an axially extending switching axis of the high voltage circuit-breaker, and the first contact elements of the at least two M&B units are motion-coupled; a drive device connected to the first contact element of at least one M&B unit and configured for moving the first contact element along the switching axis over a moving distance for separating conductive connections; and a gas damper connected to the first contact element of the at least one M&B unit and configured for damping movement of the first contact element with a damping force increasing in relation to the moving distance.

Claims19

Dependent claims

A high voltage circuit-breaker comprising:

a housing defining a volume for an insulating gas;
at least two making and breaking units arranged in the housing, whereby each making and breaking unit comprises a first contact element and a second contact element for forming an electrically conductive connection, at least the first contact element is movable along an axially extending switching axis of the high voltage circuit-breaker, and the first contact element for each of the at least two making and breaking units is motion-coupled;
a drive device connected to the first contact element of at least one making and breaking unit and configured for moving the first contact element along the switching axis over a moving distance for separating conductive connections;
a gas damper connected to the first contact element of the at least one making and breaking unit and configured for damping movement of the first contact element with a damping force increasing in relation to the moving distance;
and
at least two side rods connecting the drive device and the gas damper by surrounding at least one of the making and breaking units.

3 more elements

A method for decelerating an opening operation of a multi-making and breaking unit high voltage circuit-breaker comprising

defining, via a housing, a volume for an insulating gas;
forming an electrically conductive connection via at least two making and breaking units arranged in the housing, wherein each making and breaking unit comprises a first contact element and a second contact element for forming the electrically conductive connection, at least the first contact element being movable along a switching axis of the high voltage circuit-breaker, and the first contact element for each of the at least two making and breaking units being motion-coupled, wherein the high voltage circuit-breaker includes at least two side rods connecting a drive device and a gas damper by surrounding at least one of the making and breaking units;
moving the first contact element along the switching axis to separate conductive connections via the drive device connected to the first contact element of at least one making and breaking unit;
and
damping movement of the first contact element of the at least one making and breaking unit with a damping force increasing in relation to a moving distance of the first contact element.

2 more elements

Dependencies are inferred from the claim text.

High voltage circuit-breaker

Life of this patent

High voltage circuit-breaker

Life of this patent

Abstract

Claims19