condition assessment of high voltage insulation in power system equipment pdf
The subject matter of the book is suitable for final-year courses in electrical power engineering, for short courses on insulation-condition assessment and for postgraduate programmes involved with the study of insulating materials. Powersystem engineers associated with high-voltage equipment should find the book of value in relation to fault investigations, maintenance requirements, insulation testing and condition monitoring.
Both authors have significant industrial experience in the United Kingdom (REJ) and China/Singapore (QS) and in teaching and research at Portsmouth Polytechnic (REJ), University of NSW (REJ, QS) and Monash University (QS). During the latter periods many consultancies concerned with industrial high-voltage insulation problems were undertaken. We wish to acknowledge the value of our association with many ex-colleagues in industry and the universities and those in the various utilities with whom we have worked. Our thanks are especially due to our wives and families – Felicia (REJ), Liling and daughter Shirley (QS) – for their patience and understanding during writing of the book.
A high-voltage power system consists of a complex configuration of generators,
long-distance transmission lines and localized distribution networks with above- and
below-ground conductors for delivering energy to users. This introductory chapter
indicates the wide range of high-voltage components whose successful operation
depends on the correct choice of the electrical insulation for the particular application
and voltage level. The condition of the insulating materials when new, and especially
as they age, is a critical factor in determining the life of much equipment. The need for
effective maintenance, including continuous insulation monitoring in many cases, is
becoming an important requirement in the asset management of existing and planned