Seismic damper for high voltage breakers and disconnect switches

Details Seismic damper for high voltage breakers and disconnect switches Seismic damper for high voltage breakers and disconnect switches

1997-01-14

1999-10-26

Oberleitner, Robert J.

Spring devices

Friction snubber

267162, 267171, 188129, 521674, F16F 100

Patent

active

059713747

ABSTRACT:
Disclosed is a seismic damper for ground equipment such as high voltage breakers and disconnect switches. The disclosed seismic damper is reactive to low frequency seismic disturbances and provides damping in response to both upward and downward vertical forces. The seismic damper is adapted to be connected to such equipment without modifying the equipment. When the seismic dampers are connected to the equipment, the equipment's natural frequency in response to seismic disturbances is reduced. This reduction results from the particular use of a stacked ring compression spring and the particular configuration and assembly of the components of the seismic damper.

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