This book draws together all the components and systems that have been used in distribution network automation, to define many of the expressions used in the industry for automation, and to introduce new ideas and solutions now being proposed to facilitate control and automation implementation. Distribution companies implementing distribution automation (DA) are receiving benefits from many areas such as providing a fast method of improving reliability, making the whole operating function more efficient, or simply extending asset life. The DA functions implemented were: supervisor control and data acquisition (SCADA); communicating relays in substations; remote controlled disconnecting switches; and distribution management system with integrated fault location function supported by the corporate network information system comprising asset data base and mapping system. The power delivery process in the form of the network structure is the ultimate user of any automation scheme.