METHOD FOR CALCULATING OPTIMAL ALLOWABLE CURRENT OF UNDERGROUND POWER CABLE

摘要

The present invention relates to a method for calculating optimal allowable current of an underground power cable, in order to calculate optimal allowable current of an underground power cable by solving conductor temperature underestimation and allowable current underestimation. The method according to the present invention comprises: a first step of grouping a plurality of power cables installed under the ground by line; a second step of setting an allowable current underestimation range according to the installation position of the grouped power cables included in each line; a third step of setting a conductor temperature underestimation range according to the installation position of the grouped power cables included in each line; a fourth step of assigning one of the allowable current values included in the set allowable current underestimation range, as an allowable current value of each line; a fifth step of calculating a conductor temperature for each line; a sixth step of determining whether the calculated conductor temperature for each line converges on an allowable temperature range preset for each line; and a seventh step of outputting the allowable current value of each line, as an optimal allowable current value.;COPYRIGHT KIPO 2017