Circuit-breakers for high voltages
AssigneeCoq B.V.
InventorsRintje Boersma, Gijsbert Waldemar Irik
Life of this patent
Estimating the term…
Abstract
Monophase or polyphase circuit-breaker for high voltages, in which the switch work is or the switch works of all phases together are insulatedly accommodated in a closed metal casing and the two end contact holders of the or each switch work are connected through connecting members having the shape of coaxial hollow spherical caps which face each other with their edges to the connecting conductors of the circuit-breaker which extend insulatedly through the wall of the casing, said spherical cap-shaped connecting members forming at the same time potential gradient controlling shields.
Claims25
A circuit-breaker for high voltages comprising a metal casing, at least one monophase switching unit which is insulatedly accommodated in the casing, said switching unit comprising at least one pair of electrically conductive fixed connecting members, at least one insulator to keep said connecting members spaced apart and electrically separated, at least one pair of relatively movable cooperating contacts to make and break electrical connection between said members;
- at least two terminal bushings extending through the wall of the casing, each one of said bushings being adapted to connect a connecting member with an end of the electric circuit to be controlled, each connecting member being in the form of a cap in the shape of a hollow segment of a sphere and the two connecting members being disposed in spaced opposition with said insulator interposed therebetween.
In a circuit breaker for high voltages, the combination of:
- a metal casing adapted to contain a dielectric gas;
- a switching assembly comprising a pair of electrically conductive, cup-like members disposed in opposed relation to present spaced, registered peripherally extending edges, and an insulator interposed between said members whereby said assembly is of hollow form and said members are electrically separated from each other, said assembly being disposed within the confines of said casing with said members being spaced therefrom;
- first conductor means passing through said casing and electrically connected to one member of said pair;
- second conductor means passing through said casing and electrically connected to the other member of said pair;
- and
- switching means within the interior of said assembly for making and breaking electrical connection between said members.
An electrical circuit breaker for high voltages, comprising in combination:
- a metal casing containing a dielectric gas and having at least a pair of insulator bushings, a first terminal member projecting into the interior of said casing through one of said insulator bushings and a second terminal member projecting into the interior of said casing through the other of said insulator bushings, said terminal members forming part of an electrical circuit which is to be controlled by the circuit breaker;
- a generally spherical switching unit disposed within said casing and comprising a first semi-spherical connecting member connected with said first terminal member, a second semi-spherical connecting member connected with said second terminal member, an annular insulator interposed between said connecting members whereby electrically to separate them, switching means within the confines of said connecting members and said annular insulator for making and breaking electrical connection between said connecting members whereby to confine arcing during such making and breaking to the interior of the switching unit;
- and
- actuator means for selectively actuating said switching means to make and break electrical connection between said connecting members.
Dependencies are inferred from the claim text.