10. Diagnostics of High Voltage Equipment

This chapter is devoted to the technology of diagnosing the main high-voltage equipment of power systems. As follows from the materials of the previous chapters, modern electric power industry uses high-voltage devices that differ in purpose, design, materials used, the spectrum and intensity of influencing factors, the degree of damage when they fail, etc. This requires a high level of qualification from a power engineer / electrician to select an adequate method and instruments for diagnostics, processing and interpretation of the results obtained. As a rule, the complexity of these tasks is proportional to the complexity of the apparatus itself. The authors considered it appropriate to arrange the materials of this chapter according to the principle “from more complex to less complex” as it was done in Chapter 2 (power transformers—high-voltage switching equipment—rotating machines, etc.).