PLN's Strategy to Mitigate the Risk of Power Transformer Failure Due to Hydrolysis in Insulation Paper

EasyChair Preprint 15321

Abstract

Power transformer failures caused by hydrolysis in insulation paper present significant challenges to the reliability of electrical systems. To mitigate these risks, PLN has implemented a comprehensive strategy that includes enhanced diagnostic processes, design improvements, and optimized treatment procedures. Diagnostic improvements have been achieved through ISO 17025 accreditation and participation in international proficiency testing, ensuring the accuracy and reliability of oil testing results. Design improvements focus on specifying the appropriate conservator type, transitioning from open to closed systems to prevent oxidation. In terms of treatment procedures, PLN has introduced a policy to assess the severity of hydrolysis through furan testing before proceeding with oil reclamation, ensuring the economic feasibility and effectiveness of the process. Several case studies are presented to provide a practical illustration of how these improvements are applied in PLN, demonstrating the company's commitment to extending transformer life and enhancing system reliability.

Keyphrases: Ageing, Hydrolysis, PLN, oxidation, power transformer

@booklet{EasyChair:15321,
  author    = {Harry Gumilang},
  title     = {PLN's Strategy to Mitigate the Risk of Power Transformer Failure Due to Hydrolysis in Insulation Paper},
  howpublished = {EasyChair Preprint 15321},
  year      = {EasyChair, 2024}}