Automatic distribution master stations (ADMSs) are software platforms that can be used to monitor energy supply and consumption of power demand-side resources as well as to guarantee grid security. This document offers a complete guide to Cisco's Smart Grid Field Area Network (FAN) solution architecture. It covers various ways this solution can be used, including: ● Monitoring secondary substations for scenarios like Fault Location, Isolation, and Service Restoration (FLISR) and Volt/VAR. Distribution automation (DA) is based on primary network framework and equipment, with distribution automation system as the core, comprehensively utilizing a variety of communication modes, realizing monitoring and control of distribution network operation status and data (including distributed. The handbook describes various power distribution system constructions and elements there-of, technical considerations, distribution automation infrastructure and functionality, communication aspects, special automation applications and life cycle aspects. It also reveals some trends and future. Distribution Automation Systems have been defined by the Institute of Electrical and Electronic Engineers (IEEE) as systems that enable an electric utility to monitor, coordinate, and operate distribution components in a real-time mode from remote locations. Distribution systems have traditionally not involved much automation. They play a vital role in maintaining the optimal performance and stability of electrical power.