High-voltage device

Details High-voltage device High-voltage device

1981-02-17

1983-08-09

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200254, 174140R, H01N 3312

Patent

active

043980724

ABSTRACT:
Erosion- and decomposition-caused deterioration of exterior regions of an arc-extinguishing housing included in a high-voltage switch is eliminated or reduced. The switch also includes a stationary contact within a sealed chamber defined by the housing and a switch blade movable into and out of engagement with the stationary contact through a slit communicating with the chamber. The stationary contact and the switch blade are connectable to opposite sides of a high-voltage source. The deterioration-prone region of the housing resides between one housing portion which is connected to and is at the voltage of the stationary contact, and another portion which is essentially electrically floating. Deterioration is eliminated or reduced by closely capacitively coupling current to the region from a conductive projection connected to the stationary contact. The projection is closely spaced from, and may be either above or below, the region.

REFERENCES:
patent: 3549840 (1970-12-01), Harner

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