-Substation data integration is facilitated by existence and appropriate connection of Intelligent Electronic Devices (IEDs). Collecting data from IEDs and its processing facilitates performing data consistency checks, filtering out erroneous measurements, monitoring of switching sequences and substation topology transitions etc. Processed data may be used locally and/or communicated to remote ...

Abstract: This paper proposes a Genetic Algorithm (GA) based method for distribution network expansion including Distributed Generation (DG). It may be introduced as a combinatorial optimization method that determines the location and capacity of feeders and substations while minimizing the network loss and installation cost. In this paper, DGs are considered in the network expansion planning d...

—This paper analyzes the current status of power production safety, introduces the realization principle of intelligent working guarding system in substations, and delves into the technologies of positioning and intelligent video analysis based on ultra wideband (UWB) technology and high resolution digital spatial data of the substations. Based on the acquired data, an intelligent working moni...

In this paper, we compare and analyze the signals of acoustic emission (AE) sensor, high-frequency current transformer (HF-CT) and capacitive coupled (CC) sensor inspection methods when they are used to detect the partial discharge (PD) in gas isolation substations (GIS). The PD location feasibility of the AE method is also studied. In general, the leakage currents are measured by using the HF-...

The management of power substations is a complex control task involving the coordination of interactions between customer demand and substation components. In this paper we look at the efficient management of substations in a pre-fault state through the use of planning, considering the supply criteria, fault management and implied operational costs of control decisions. We discuss the modelling...

Abstract: DC auxiliary systems are usually relied upon as the last source of reliable electric power at an installation of power plants and substations. Because DC auxiliary systems and battery power sources differ from AC systems, it is important that DC system protection designer is aware of their special considerations. In Standard IEC 61660-1 is given mathematical model for dynamics analysi...

This article proposes a numerical method for solving the propagation and combustion of jet gas mixture in an axisymmetric satellite air stream. To model process, dimensionless equations turbulent boundary layer reacting gases Mises coordinates are used. A two-layer four-point nonlinear separation scheme was used to solve problem coordinates, second-order along longitudinal coordinate given. The...