The paper presents a real power delivery system with essential consumers safety analysis. two levels voltage networks 6kV and 0,4kV are modeled the help of Edsa software short-circuit simulation is conducted in order to obtain computed values currents all network buses. results used implement technical solution for an important improvement analysed system.

2 the output of " utility scale " DERs (> one megawatt). In addition, existing industry standards define advanced functions for DER only at the individual device level, and lack the more aggregated, feeder-level representations that are needed for enterprise integration. This white paper describes ongoing research at the Electric Power Research Institute that is exploring Various ways in which ...

An electric power network can be evolved into smart grids, which are measured by providing energy efficiency and improving the available resources. With development of software hardware elements, decision-making mechanism existing grids is transformed more robust uninterrupted economical management systems. In this study, a cognitive-based algorithm using dynamic flexibility, storage cloud comp...

electric arc furnace (eaf) is one of the largest loads in electric power systems. it is highly time varying and nonlinear. its reactive power variations cause voltage fluctuations in nearby system which is known as flicker. on the other hand the nonlinear voltage-current characteristic causes strong voltage and current harmonics in eaf. to this end flexible ac transmission systems (facts) techn...

Based on the problems caused by today conventional vehicles, much attention has been put on the fuel cell vehicles researches. However, using a fuel cell system is not adequate alone in transportation applications, because the load power profile includes transient that is not compatible with the fuel cell dynamic. To resolve this problem, hybridization of the fuel cell and energy storage device...

Executive Summary Hidden failures in protection systems for electric power networks can play significant roles in propagating small disturbances into wide-area disturbances. Hidden failures are incorrect operations of protection device that usually remain undetected until abnormal operating conditions occur. The objective of this research project was to investigate and demonstrate a new approac...

259 Lines are protected by overcurrent-, distance-, or pilot-relaying equipment, depending on the requirements. Overcurrent relaying is the simplest and cheapest, the most difficult to apply, and the quickest to need readjustment or even replacement as a system changes. It is generally used for phaseand ground-fault protection on station-service and distribution circuits in electric utility and...