Abstract
In this paper we applied the superposition principle with a new basic conductor voltage condition for the computed electric field in three-core cables and the results obtained have higher accuracy and lower computational time than the previous works. The maximum potential error is not more than 0.050% and the maximum field deviation angle is not more than 0.011/spl deg/. The electric field problem under arbitrary conductor voltage condition is reduced to a field computation for a new basic conductor voltage condition (0,1,-1) which reduces the computing time because it doesn't require the repetitive solution of the algorithm for different /spl omega/t values. With this new configuration, it is possible to take advantages of a symmetrical conductor arrangement reducing the number of charges necessary for the field calculation and the superposition principle is applied only two times.
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