Electrical isolator
AssigneeSiemens Aktiengesellschaft
InventorBrett Watson
Life of this patent
Estimating the term…
Abstract
An electrical isolator includes a body defining an aperture therethrough, a first electrical contact disposed at a first end of the aperture, a second electrical contact movably disposed at a second end of the aperture, the second contact configured to be operatively movable through the aperture to electrically connect to, or disconnect from, the first contact and at least two concave electrical field control screens fixed to the body at respective ends of, and about, the aperture such that the screens lie transverse to the aperture and an open-end of each concave screen is directed towards the other.
Claims28
1-29. (canceled)
An electrical isolator, comprising:
- a) a body having an aperture formed therethrough defining first and second ends of said aperture;
- b) a first electrical contact disposed at said first end of said aperture;
- c) a second electrical contact movably disposed at said second end of said aperture, said second electrical contact configured to be operatively movable through said aperture to electrically connect to, or disconnect from, said first electrical contact;
- and
- d) at least two concave electrical field control screens each fixed to said body at a respective end of and about said aperture, said at least two concave screens lying transverse to said aperture, said at least two concave screens each having an open end, and said open ends of said at least two concave screens being directed towards each other.
An electrical isolator, comprising:
- a) a body having an aperture formed therethrough defining first and second ends of said aperture;
- b) a first electrical contact disposed at said first end of said aperture;
- c) a second electrical contact movably disposed at said second end of said aperture, said second electrical contact configured to be operatively movable through said aperture to electrically connect to, or disconnect from, said first electrical contact;
- and
- d) at least two electrical field control screens each extending outwardly from a respective one of said ends of said aperture.
An electrical switch, comprising:
- a) a housing;
- b) an interrupter disposed inside said housing for interrupting an electrical current;
- and
- c) an isolator disposed inside said housing and disposed in electrical communication with said interrupter, said isolator including:
- i) a body having an aperture formed therethrough defining first and second ends of said aperture;
- ii) a first electrical contact disposed at said first end of said aperture;
- iii) a second electrical contact movably disposed at said second end of said aperture, said second electrical contact configured to be operatively movable through said aperture to electrically connect to, or disconnect from, said first electrical contact;
- iv) at least two concave electrical field control screens each fixed to said body at a respective end of and about said aperture, said concave screens lying transverse to said aperture, said concave screens each having an open end, and said open ends of said concave screens being directed towards each other;
- and
- v) a mechanism configured to actuate said interrupter and said isolator (9).
An electrical isolating chamber for electrically isolating first and second regions, the isolating chamber comprising:
- a) a passage extending between the first and second regions;
- b) a member extending through said passage;
- and
- c) at least two concave electrical field control screens disposed about said passage, said at least two concave screens lying transverse to the chamber, said at least two concave screens each having an open end, said open ends of said at least two concave screens being directed towards each other, said at least two concave screens being configured to distribute an electrical field in the chamber to provide a third region of low electrical stress, and said member extending through said third region.
Dependencies are inferred from the claim text.