Applications of dielectric spectroscopy in time and frequency domain for HV power equipment
Page 1 Applications of Dielectric Spectroscopy in Time and Frequency Domain for HV Power …

Introduction ower transformers are one of the most expensive elements in a power system,
and their failure is a very costly event. Power transformers are mainly involved in energy …

Polarization and Depolarization Current (PDC) technique is an effective tool to assess the
condition of oil-paper insulation system in power transformers. So far the PDC behaviors of …

Nachdem in den vorstehenden Kapiteln die Grundlagen und die Technologien der
Hochspannungstechnik beschrieben wurden, sollen beispielhaft auch typische …

It is important to investigate the dielectric behaviour of natural ester-paper insulation, as the
number of transformers choosing natural ester as their insulation oil is increasing. A …

In this paper the measuring results of polarization and depolarization currents (PDC) on oil-
pressboard samples will be presented. The measurements were carried out under different …

This paper presents the Brazilian experience on the application of a noninvasive technique
based on the dielectric response using the polarization and depolarization currents analysis …

Estimating the moisture content of insulation paper is important in transformer condition
evaluation, the results of which are affected by thermal aging. This study investigates the …

There is a growing need for accurate but nonintrusive insulation diagnostic techniques and
better maintenance tools to assay the internal condition of transformers. Classical diagnostic …

Transformer maintenance has evolved over the past few decades from an item of periodic
expenditure to a strategic planning tool in the management of transmission and distribution …