ABSTRACT
This chapter discusses the concepts behind condition assessment and condition tracking, and their use, the testing needs and approaches for each major class of power system equipment, and how they are organized into a program of condition assessment. Sections 11.2 and 11.3 discuss condition and state analysis of equipment, and analysis and modeling of them for asset management purposes. Sections 11.4 through 11.8 discuss in turn the testing and diagnostic needs of various categories of equipment, in sections for transformers, breakers and switchgear, underground cables and equipment, overhead lines and equipment, and service transformers. Section 11.9 provides some detail and examples of assessment analysis methods in practice, including using test results to reach conclusions about equipment condition – and draws some conclusions about what testing and diagnostics can and cannot do. Section 11.10 provides a summary of condition tracking, which is typically where most organizations want to be with regard to the use of condition assessment. Section 11.11 concludes with a comparison of needs among the various classes of equipment and a summary of key points.
