The system dielectric can be defined as the material(s) that provides
electrical isolation between components and structural elements of the
high-voltage power supply.
The previous discussion of the guideline centered around the most common
high- voltage dielectric or insulation system used today; i.e., solid
materials. The three major types of dielectric systems are solids, liquids and
A review of their advantages and disadvantages is presented in Table 5-1.
Selection of a dielectric system for a specific application depends on
criteria too numerous to cover in this document.