Electrical Engineering ⇒ Topic : Constructional Details of a Capacitor

Constructional Details of a Capacitor
The most common types of capacitors used in practice consists of two strips of metal foil [represented by the full line in Fig. (a)], separated by strips waxed or impregnated paper, shown by the dotted line in the same figure. Both the metal foil and impregnated paper are wound spirally to increase the area. The entire assembly is impregnated in hot paraffin wax.

                                    FIGURE (a) Constructional details of a paper insulated capacitor