State recognition in disconnecting switches is important during substation automation. Here, an effective computer vision-based automatic detection and state recognition method for disconnecting switches is proposed. Taking advantage of some important prior knowledge about a disconnecting switch, the method is designed using two important features of the fixed-contact facet of such disconnectin...

The aim is to improve the monitoring and control of district heating systems through the use of agent technology. In order to increase the knowledge about the current and future state in a district heating system at the producer side, each substation is equipped with an agent that makes predictions of future consumption and monitors current consumption. The contributions to the consumers, will ...

As the 750kV substation has the characteristics like timing inconsistency, dual protection configuration and uncertain diagnosis result, a fault diagnosis method of substation with redundant protection configuration based on time sequence fuzzy Petri nets is proposed. In this method, redundant knowledge about fault component is represented by using two sets of protective information. On that ba...

We focus in this paper on the contribution of a subsystem to the environmental impact of a system. In this way we propose to explore some limits related to Life Cycle Assessment (LCA), in particular the consideration of the use phase specificities (for example lifetime, technology or energy mix). Two cases studies concerning AREVA T&D’s aluminium electrolysis conversion substations are proposed...

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...