Multi-section internally cooled high-voltage high-energy cable a

Details Multi-section internally cooled high-voltage high-energy cable a Multi-section internally cooled high-voltage high-energy cable a

1977-07-19

1979-09-04

Grimley, Arthur T.

Electricity: conductors and insulators

With fluids or vacuum

With cooling or fluid feeding, circulating or distributing

174 21R, 174 94R, H01B 734, H02G 306

Patent

active

041669207

ABSTRACT:
A cable includes a plurality of elongated sections each composed of a tubular electric conductor, electric insulation surrounding the electric conductor, and an outer cable jacket surrounding the electric insulation. An inner tubular member of titanium or alloyed stainless steel is accommodated in the electric conductor and defines a channel for a cooling medium such as water. The inner tubular members of each two consecutive cable sections have flanges that are welded or soldered to one another, and a bridging element is interposed between the electric conductors of the two consecutive electric conductors and welded or soldered thereto. The electric conductor preferably is a circumferentially complete one-piece tubular element extruded onto the inner tubular member. In the region of contact of the electric conductor with the inner tubular member, there may be provided at least one groove extending longitudinally of the cable for conducting the cooling medium, which escapes from the cooling channel in case of damage to the inner tubular member, to the ends of the cable so as to indicate the occurrence of such damage thereat. A tube having a high thermal resistance is received in the groove of each of the cable sections and in the bridging element, extending longitudinally across the connection of the respective electric conductor with the bridging element. A method of manufacturing such cable includes shaping the electric conductor around the inner tubular member, joining the inner tubular members of the two consecutive cable sections by welding or soldering, and subsequently joining the electric conductors surrounding the inner tubular members of the two consecutive cable sections by welding or soldering the bridging element to such electric conductors.

REFERENCES:
patent: 2810010 (1957-10-01), Davey
patent: 3482304 (1969-12-01), Brigot et al.
patent: 3553342 (1971-01-01), Papadopulos
patent: 3585271 (1971-06-01), Reynolds et al.
patent: 3610807 (1971-10-01), Whitehead
patent: 3678175 (1972-07-01), Appiani et al.
patent: 3843170 (1974-10-01), Bagnulo
patent: 3876136 (1975-04-01), Bomberger, Jr.

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