High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Vacuum
Patent
1996-02-16
1997-01-28
Scott, J. R.
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Vacuum
218124, 218135, 218138, H01H 3302, H01H 3366
Patent
active
055979920
ABSTRACT:
The current interchange includes a housing disposed on a high voltage circuit interrupter. The movable switch contact extends into the housing with a guide member attached to the end of the movable switch contact. The housing includes a base attached to one of the terminals of the interrupter and includes a pair of guide rods extending into the housing for guiding engagement with the guide member. A pair of electrical cables extend helically around the guide rods and have one end attached to the base and another end attached to the guide member to provide an electrical path between the movable switch contact and the terminal. The electrical cables produce an axial magnetic field which maintains the metallic vapor produced by the interruption of the circuit between the contacts to reduce the transport of ions from the gap and reduce the current chop.
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Cooper Industries Inc.
Scott J. R.
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