In recent years, vibration signals have been widely applied for the identification of
mechanical states in oil-immersed transformers. This paper, following the framework of …

Winding condition assessment is an essential task for operating transformers, and the
vibration method provides a low-cost and non-intrusive approach. In this paper, a novel …

The transformer plays a critical role in maintaining the stability and smooth operation of the
entire power system, particularly in power transmission and distribution. The paper begins …

It has been over two decades since the publication of pioneer works about the power
transformer diagnostics based on monitoring of their acoustic fingerprints. Since then, there …

Health and usage monitoring (HUM) systems are critical for power transformers, and should
provide accurate diagnostic information without delay. Diagnostic methodologies are the …

One of the most critical devices in an electrical system is the transformer. It is continuously
under different electrical and mechanical stresses that can produce failures in its …

Broadband responses under random excitations can reflect the modal characteristics of a
structure. This paper investigates the applicability of operational modal analysis (OMA) to …

Windings are the most critical components in power transformers, and the related
mechanical degradation assessment has attracted an increasing attention in recent years. In …

The converter transformer is important for the high-voltage direct current transmission
system. The distribution characteristics of the vibration signal of the tank are significant for …

This study presents the case study of a substation in‐service power transformer referred to
the on‐site partial discharge (PD) detection and evaluation methods. An original …