ABSTRACT
This chapter investigates the design of automation circuits based on empirical methods, relying mainly on acquiring knowledge from simple to more complicated circuits that are commonly utilized in the industry. Due to the fact that the variables of Boolean algebra can have only two values, this type of algebra is ideal for the binary system, especially in the way that the switches are operating. A Boolean variable represents the level of voltage in a wire of a digital electronic circuit. The design methodology of a state diagram and its logical processing is based on a specific procedure, and is a graphical approach in designing automation circuits, with its main aim to systematically simplify the design procedure, especially in big, complicated industrial automations. The manual correction of the power factor in an industrial electric AC power station is performed by inserting successively capacitors to the power circuit until it reaches the desired factor value.
