Scholarlink

<p>The on-load tap changer is a critical device in power transformers for controlling line voltages. Since the OLTC is the only moving part, it is a major source of failure in power transformers. This review presents a comparative study of OLTC technologies-mechanical, hybrid, and electronic—with a particular focus on their condition assessment and fault diagnosis. It outlines both traditional and novel diagnostic approaches and highlights their applicability, limitations, and future development potential. The paper serves as a unified reference for researchers and engineers, combining technological classification, failure mechanisms, and condition monitoring techniques in one comprehensive document.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

OLTC condition assessment and future trends: an overview

  • 期刊论文

  • 发表日期：

    2025年11月26日

查看全文
  • Lucas Puntano,
  • Matias Meira,
  • Cristian Ruschetti,
  • Carlos Verucchi,
  • Raúl Álvarez

摘要

The on-load tap changer is a critical device in power transformers for controlling line voltages. Since the OLTC is the only moving part, it is a major source of failure in power transformers. This review presents a comparative study of OLTC technologies-mechanical, hybrid, and electronic—with a particular focus on their condition assessment and fault diagnosis. It outlines both traditional and novel diagnostic approaches and highlights their applicability, limitations, and future development potential. The paper serves as a unified reference for researchers and engineers, combining technological classification, failure mechanisms, and condition monitoring techniques in one comprehensive document.