The basic things about substations you MUST know in the middle of
Substation EquipmentTransformersCircuit BreakersDisconnecting SwitchesSubstation BusSurge ArrestersInsulators and ConductorsProtective RelaysFusesSubstation LocationAll power transmission lines must be isolated to avoid safety hazards. Large strings of insulators are used at substations and at other points along the power distribution system to isolate the current carrying conductors from their steel supports or any other ground mounted equipment. Insulators may be made of porcelain, rubber or a thermoplasticSee more on electrical-engineering-portal TutorialsPoint
Smart Substations in Smart Grid - Online Tutorials Library
Smart substations are important part of the modern smart electric grid, as they provide seamless integration of renewable energy resources, enhance grid