In the past decade, substation automation, protection and control systems have changed significantly, and this transformation promises to continue as increasing demands on the utility infrastructure mandate continued technology advancements. Systems have become more interconnected, providing end users with much more information and enabling higher reliability and greater levels of control. Inte...

This paper presents a comparative study of the electricity consumption (EC) in an urban low-voltage substation before and during the economic crisis (2008-2013). This low-voltage substation supplies electric power to near 400 users. The EC was measured for an 11-year period (2002-2012) with a sampling time of 1 minute. The study described in the paper consists of detecting the changes produced ...

The objective of this work is to improve the preventive maintenance processes used by the electricity distributions companies. This paper is focused on the maintenance of a transformation module in a mid-voltage electrical substation, specifically on the times and prices. Starting from actual data of a mid-voltage electrical substation for a specific transformation module, a Genetic Algorithm w...

This paper investigates the maximum photovoltaic (PV) penetration limits on both overhead lines and underground cables medium voltage radial distribution system. The PV limit is estimated considering bus (1.05 p.u.) feeder current ampacity (1 p.u.). All factors affect max are investigated in detail. Substation voltage, load percentage, power factor, system frequency (50 Hz or 60 Hz) analyzed. a...

Abstract To study the real scale transformer fire and control process, this paper uses FDS to simulate combustion process analyzes data of temperature flow field. Through analysis, establishes a visualization system based on unity3d engine modeling software complete Substation Scene Modeling, particles water jet in whole occurrence fighting is realized. The research results are great significan...

All signals were transmitted between the primary plant and the protection and control system by means of hard-wired secondary cabling. Protection and control panels located in control rooms were equipped with protection relays, panel mimics and control switches. The primary plant and protection and control panels were hard-wired to a supervisory remote terminal unit (RTU) via a supervisory junc...

The eco-design of complex industrial systems becomes a major issue for the concerned companies. Life Cycle Assessment (LCA) in particular is more adapted to “classical” products such as consumer goods. Performing LCA of such systems requires some thoughts to ensure significant results, for example concerning data granularity and quality. This article proposes a Life Cycle Assessment of an Alsto...

Relying on Computer Supported Collaborative Work (CSCW) technology, expert system (ES) can extend its capabilities from only one working to set up a cooperative labor environment for a group of expert systems working together. In order to more effectively support those remote substations fault diagnosis as well as related departments involvements, Web-based CSCW systems are intensively recommen...