High voltage seismic bushing

Details High voltage seismic bushing High voltage seismic bushing

1980-02-08

1981-12-08

Askin, Laramie E.

Electricity: conductors and insulators

With fluids or vacuum

Insulators

174152R, 174161R, H01B 1726

Patent

active

043049567

ABSTRACT:
A high voltage seismic bushing charged with an insulating material has a procelain tube having an adapter rigidly connected to one end of the tube. The adapter is flexibly connected to a mounting flange such that the porcelain tube is free to move relative to the mounting flange in the event of an earthquake. The means for flexibly connecting the adapter to the mounting flange utilizes a spring mechanism to absorb the energy through friction to attenuate the movement of the porcelain tube. A resilient buffer member is interposed between the adapter and the mounting flange to provide a predetermined spacing therebetween and absorb the impact due to the movement of the adapter relative to the mounting flange. A sealing member seals the interface between the adapter and the mounting flange for containing the insulating material charged therein.

REFERENCES:
patent: 3856242 (1974-12-01), Cook
Fukazawa; H. et al., "500 Kv Bushings", Melco Technical Report, vol. 45, No. 9, 1971, pp. 1094-1104.

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