Fig. 1,509.—Simple form of alternator coil, consisting of numerous turns of insulated wire wound around a form, then covered with a tape winding, varnished and baked.
Ques. What kind of inductors are used on machines intended for high voltage and moderate current?
Ans. The winding is composed of what is called magnet wire, with double or triple cotton insulation.
Ques. Where considerable cross section is required how is a wire inductor arranged?
Ans. In order that the coil may be flexible several small wires in multiple are used instead of a single large wire.
Ques. How is the insulation arranged on inductors of this kind?
Ans. Bare wire is used for the wires in parallel, insulation being wrapped around them as in fig. 1,510.
This construction reduces the space occupied by the wires, and the insulation serves to hold them in place.
