FIELD: cable engineering; power transmission over long-distance alternating- and direct-current lines.
SUBSTANCE: in order to enhance active sectional area of AC current carrying conductor to coordinate actual throughput capacity of cable with cable line and to eliminate limits on length of AC cable line so as to provide for power transmission to distances amounting to hundreds of kilometers and more, current-carrying conductor of cable has annular sectional area, its size being chosen considering definite conditions and using proposed equations.
EFFECT: improved cooling conditions and reduced dimensions of cable.
2 cl, 6 dwg, 8 tbl
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Authors
Dates
2008-01-10—Published
2005-10-18—Filed