Westinghouse Electric Corporation

Charles S Ellis

Philip C Bolin

Gary K Bowman

Melvyn D Hopkins

Richard E Kane

A gas-insulated transmission line includes an outer sheath and an inner conductor disposed therein, which inner conductor is formed from two inner conductor sections electrically connected together. A contact shield surrounds and electrically shields the connection of the two inner conductor sections. Insulating supports spatially support the contact shield within the outer sheath, and the contact shield physically supports the inner conductor sections. The insulating supports thus support the inner conductor through the contact shield.

Insulating spacer design for a modular gas-insulated transmission line

An improved gas-insulated transmission line is disclosed in which the transmission line itself is constructed in a modular fashion from elements which are joined together, typically at the final installation location, to form the transmission line. The other sheath and the inner conductor can be fabricated separately, at different locations and by different manufacturers, and transmitted to the point of final assembly and installation. A backup ring, insulator support assembly, contact shield, and connection member are separately fabricated into a single modular member, which can by itself be subjected to the testing procedures normally undertaken at the factory. This modular member, after satisfactorily passing its acceptance test, can then be shipped to the installation site. The installation of the transmission line, and formation thereof, can then be performed by inserting the inner conductor into the connection member portion of the modular member, and the outer sheath segments can then be physically connected to the backup ring portion of the modular member to form the transmission line.

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Norcross, GA, United States of America

Charles S Ellis