Chapter 4 Electrostatic fields and field stress control

In response to an increasing demand for electrical energy, operating transmission level voltages have increased considerably over the last decades. Designers are therefore forced to reduce the size and weight of electrical equipment in order to remain competitive. This, in turn, is possible only through a thorough understanding of the properties of insulating materials and knowledge of electric fields and methods of controlling electric stress.

This chapter is therefore devoted to a discussion of some of the problems encountered when analysing even relatively simple but practical insulating systems. Teaching experience has shown that this is a necessary prerequisite in order to gain a clearer ...

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