Electricity: conductors and insulators – With fluids or vacuum – With cooling or fluid feeding – circulating or distributing
Patent
1977-04-13
1978-04-25
Grimley, Arthur T.
Electricity: conductors and insulators
With fluids or vacuum
With cooling or fluid feeding, circulating or distributing
174 27, 174 37, H01B 734
Patent
active
040864251
ABSTRACT:
Three single-conductor cables are laid down such that viewed in cross-section they are located at the vertices of an equilateral triangle, or else they are laid down in a common plane. Each cable is internally water cooled, and provided with a respective return-flow pipe for cooling water. The return-flow pipes are located on phase-angle loci for two phase angles .phi..sub.1.sbsb.1 and .phi..sub.1.sbsb.2, where the phase angle in question is the phase angle of the longitudinal voltage induced in the return-flow pipes by current flowing in the cables. The two phase angles differ by 180.degree.. As a result, no longitudinal voltages are induced in the return-flow pipes and/or the longitudinal voltages induced in successive sections of the pipes cancel each other out so as to result in no net induced longitudinal voltage.
REFERENCES:
patent: 3818116 (1974-06-01), Kuljian
patent: 3869562 (1975-03-01), Eidinger et al.
patent: 3903355 (1975-09-01), Rasquin
patent: 3919456 (1975-11-01), Floessel
Felten & Guilleaume Carlswerk AG
Grimley Arthur T.
Striker Michael J.
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