Lee, H.; Lee, B.; Han, G.; Kim, Y.; Kim, Y. Development of Methods for an Overhead Cable Health Index Evaluation That Considers Economic Feasibility. Energies2023, 16, 7122.
Lee, H.; Lee, B.; Han, G.; Kim, Y.; Kim, Y. Development of Methods for an Overhead Cable Health Index Evaluation That Considers Economic Feasibility. Energies 2023, 16, 7122.
Lee, H.; Lee, B.; Han, G.; Kim, Y.; Kim, Y. Development of Methods for an Overhead Cable Health Index Evaluation That Considers Economic Feasibility. Energies2023, 16, 7122.
Lee, H.; Lee, B.; Han, G.; Kim, Y.; Kim, Y. Development of Methods for an Overhead Cable Health Index Evaluation That Considers Economic Feasibility. Energies 2023, 16, 7122.
Abstract
To supply stable and high-quality power according to the advancement of industrial growth, electric power companies have performed maintenance of power facilities using various meth-ods. In the case of domestic power distribution facilities, there are limitations in performing di-agnostic management on all facilities owing to the large number of facilities; therefore, old fa-cilities are managed by the health index assessment method. The health index assessment com-prises only facility operation data and external environmental data and is managed only for four types of distribution facilities, including overhead/underground transformers and switchgear. In the case of extra high–voltage overhead wires, there is no standard for old replacement, despite the large number of wires, such as transformers and switchgear, and the large ripple effect of power failure in the event of a power outage. Therefore, in this paper, a health index assessment methodology for extra-high voltage overhead cables was developed. In this paper, we devel-oped an economic health index assessment methodology that additionally considers risk cost, which is different from the existing health index assessment method that uses only operational data and external environmental data to determine facility performance evaluation and aging replacement criteria. Using the health index assessment methodology developed in this paper, it is possible to expect a reduction in facility operating costs and investment costs from the per-spective of electric power companies through the replacement of old extra-high voltage over-head cables. In addition, from the perspective of consumers, it is expected to increase power re-liability and reduce the ripple effect of failure by preferentially replacing equipment with a high probability of failure.
Keywords
health index; distribution; overhead line; power facilities; evaluation
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
