Power flow calculation in distributive system. State estimation. Operational management in distributive systems. Management in normal conditions: Tools (software and hardware) for determination, implementation and surveillance of optimal state in distribution systems. Systems for surveillance, data acquisition and equipment management (SCADA) in distribution network. Telecommunication infrastructure. Contemporary software systems for distribution management system (DMS). Control of voltage and reactive states in distribution system: mathematical models, optimization techniques, possible implementation ways. Management in disaster states: tools, models and optimization procedures for detection and isolation of failures and supply restorations in current distribution systems. Systems for manipulation automatization in distribution systems. Management systems (OMS). Operational planning and optimization: management of planned cuts, short term forecast of consumption/production, models and optimization procedures for determination of optimal configuration of distribution networks in contemporary distribution systems. Assets management and maintenance: tools and models for surveillance and state estimation of distribution system elements, maintenance strategies: maintenance based on equipment condition, maintenance based on risk assessment. Tools and approaches to measurements and risk assessment. A part of the classes are carried out through independent study and research work in the field of planning and optimization of distribution network. Study and research work includes active informing from scientific resources, organization and performance of experiments and statisitical data processing, numeric simulations