Condition Monitoring and Health Index Determination of Operating 20kV Distribution Transformers Using Analytical Hierarchy Process Method

EasyChair Preprint 15442

Abstract

The distribution system is one of the business processes in the utility system. The most crucial asset in distribution system is the transformer. The high failure rate of distribution transformers can lead to loss of revenue and decreased service quality. There are many factors that cause the failure of distribution transformers. thus, developing strategic planning to increase the reliability of transformers is a must. One of the strategic plans for the maintenance of the distribution transformer is Health Index. Health index consists of several stages, and one of the most influential factors in increasing the accuracy of the health index is weighting factors. Based on previous studies, there are several methods used in determining the weighting factor. In this study, the Analytical Hierarchy Process Method involves expert judgment applied to adjust the weighting factor. The experience of experts will serve as the basis for determination. The weighting factor will be applied to several parameters in the assessment of the transformer (i.e. Oil leakage, tank condition, Grounding, Unbalance, Load Profile, Hot spot). The findings oh the AHP show that Load profile has a highest with 32.17%, followed by Unbalance (18.93%), Hot Spot Temperature (18.72%), Oil Leakage (13.92%), Grounding (11.53%), and Tank Condition (4.73%). Furthermore, 538 samples of operating 20 kV distribution transformers will be assessed with Health Index

Keyphrases: Analytic Hierarchy Process (AHP), Health Index, Operating Distribution Transformers, distribution transformers, weighting factor

@booklet{EasyChair:15442,
  author    = {Rizki Suharly and Suwarno and Mochammad Soffin Hadi},
  title     = {Condition Monitoring and Health Index Determination of Operating 20kV Distribution Transformers Using Analytical Hierarchy Process Method},
  howpublished = {EasyChair Preprint 15442},
  year      = {EasyChair, 2024}}