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2022 | Book

Causes of Power Transformer Failure Read chapter Read first chapter

Transformer Condition Control

Advanced and Traditional Technologies

Authors: Prof. Dr. Vasily Ya. Ushakov, Assoc. Prof. Alexey V. Mytnikov, Prof. Dr. Valeriy A. Lavrinovich, Dr. Alexey V. Lavrinovich

Publisher: Springer International Publishing

Book Series : Power Systems

Part of: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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About this book

This book is devoted to one of the main problems of modern electrical power engineering—power transformer diagnostics. The first three chapters discuss the fundamentals: The first chapter presents the physical reasons for power transformers’ failures and the technical and economic consequences of disruption of the normal operation. The second chapter reviews the standard technologies for monitoring the state of the high-voltage transformers. The third chapter tells about monitoring the condition of transformer windings based on the pulse method.

The fourth chapter presents the technologies for transformer windings condition controlled by means of nanosecond pulses. The stages of improving the pulsed method based on a short probing pulse of the nanosecond range, the results of experiments on identifying the radial and axial displacements of the winding, studies of the effect of the duration and shape of the probing pulse on the sensitivity of the diagnostic procedure, and the stages of developing a mathematical as well as physical model of a power transformer are consistently presented.

Table of Contents

Frontmatter
Chapter 1. Causes of Power Transformer Failure
Abstract
A high-voltage transformer is a complex device in both design and materials. Accordingly, the causes and effects of failures affecting both the structure elements of a transformer and the entire apparatus are quite diverse.
Vasily Ya. Ushakov, Alexey V. Mytnikov, Valeriy A. Lavrinovich, Alexey V. Lavrinovich
Chapter 2. Standardized Technologies of Condition Monitoring for High Voltage
Abstract
For monitoring the condition of transformer active parts, there are two main requirements that stand out: detection of defects at an early stage and diagnostics with voltage in operation and transformer bundling intact (“ON-LINE” mode).
Vasily Ya. Ushakov, Alexey V. Mytnikov, Valeriy A. Lavrinovich, Alexey V. Lavrinovich
Chapter 3. Diagnostics of Transformer Windings Condition by Probing Pulses of Microsecond Duration
Abstract
Low-voltage pulsed diagnostics (LVPD) was proposed in 1966 at the Institute of Electrical Engineering (Warsaw, Poland) [1] and was instantly recognized by the world’s leading centers for the development and implementation of new control technologies for transformer condition [2].
Vasily Ya. Ushakov, Alexey V. Mytnikov, Valeriy A. Lavrinovich, Alexey V. Lavrinovich
Chapter 4. Probing Transformer Windings with Nanosecond Pulses
Abstract
This chapter presents the technologies for transformer windings condition controlled by means of nanosecond pulses. Main steps of development of physical as well as mathematical models are shown.
Vasily Ya. Ushakov, Alexey V. Mytnikov, Valeriy A. Lavrinovich, Alexey V. Lavrinovich
Chapter 5. Development of a Schematic Diagram and a Probing Pulsed Generator Prototype
Abstract
This chapter discusses the design stages of a special impulse generator for obtaining probing pulses. This generator is the main part of the diagnostics complex for nanosecond test control of transformer windings.
Vasily Ya. Ushakov, Alexey V. Mytnikov, Valeriy A. Lavrinovich, Alexey V. Lavrinovich
Chapter 6. Single-Stage Defectography of Windings with Various Defect Degree Development
Abstract
This chapter presents a new approach to the development of the pulse method for diagnosing transformer windings—a single-stage process of condition monitoring based on the use of a probing pulse only.
Vasily Ya. Ushakov, Alexey V. Mytnikov, Valeriy A. Lavrinovich, Alexey V. Lavrinovich
Backmatter
Metadata
Title
Transformer Condition Control
Authors
Prof. Dr. Vasily Ya. Ushakov
Assoc. Prof. Alexey V. Mytnikov
Prof. Dr. Valeriy A. Lavrinovich
Dr. Alexey V. Lavrinovich
Copyright Year
2022
Electronic ISBN
978-3-030-83198-1
Print ISBN
978-3-030-83197-4
DOI
https://doi.org/10.1007/978-3-030-83198-1