Combination isolating switch and current transformer

Details Combination isolating switch and current transformer Combination isolating switch and current transformer

1980-03-18

1982-03-16

Hartary, Joseph W.

Electrical transmission or interconnection systems

Conductor arrangements or structure

200 48A, 361340, H02B 1302

Patent

active

043203116

ABSTRACT:
An isolating switch for use in a voltage cell connected to a source of power. The switch is disposed on a slidable frame mounted on guides internally of the cell. It includes a movable assembly mounted rotatably on the slidable frame, with capacity for pivotal movement from switch closing position to switch opening position. The movable assembly includes an oscillatable rotary cylinder formed of insulating material and pivotal about its longitudinal axis. A plurality of axially spaced, co-planar poles are formed integrally with the cylinder, each pole including a pair of coaxial diametral arms of unequal length extending from opposite sides of the cylinder. The arms encase a diametral conductive core provided with electrical contacts mounted at each end. The contacts are connectable to, and disconnectable from, the source of power and an adjacent circuit breaker, or similar apparatus, by turning the movable assembly angularly about its longitudinal axis. The conductive core of each pole may constitute a monoconductor primary of a current transformer disposed at each pole internally of the cylinder, the secondaries of the transformer being suitably located within the cylinder relative to the pole.

REFERENCES:
patent: 3157827 (1964-11-01), Tjebben
patent: 4214291 (1980-07-01), Koshman et al.

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