Varistor inserter device for a high-voltage circuit-breaker
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United States of America Patent
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Nov 23, 1993
Grant Date -
N/A
app pub date -
May 21, 1992
filing date -
May 22, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for temporarily inserting an electrical component such as a varistor connected to a contact arm carrying a metal contact ring in parallel with the contact of a circuit-breaker comprises a small diameter metal tube mechanically joined and electrically connected to the exterior of the main mobile contact. A rod can slide inside the small diameter metal tube. The rod has at a first end, a metal contact sleeve which can come into electrical contact with the metal contact ring. The sleeve abuts a first end of the small diameter metal tube. The second end of the rod carries a conical abutment. The second end of the tube has a bore which terminates in a conical interior shape profile complementary to and sized to that of the abutment.
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