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The purpose of this research is to develop a test method that is capable of determining the integrity of the grounding grid and clearly indentifying weak points or discontinuities. The concept of the proposed method is to inject the square wave current with high frequency (~500Hz) and high current (~10A maximum) into the grid. The magnetic field produced by the current flowing in the buried conductors...
Human exposure to magnetic fields generated by distribution substations and power lines is one of the growing health concerns that has drawn much attention from Qatar General Electricity & Water Corporation (also called Kahramaa) and Qatar ministry of environment. This paper presents the results of magnetic field measurements in an outdoor high voltage 132/66kV power substation, located in the...
A complete system solution for automated integration of substation Intelligent Electronic Device (IED) data to generate a customized event report for protection engineers is presented in this paper. Detailed strategy for IED data processing and information exchange to meet the needs of protection engineers is proposed. An Implementation approach is discussed next followed by a simulation case used...
The research work published in this paper is based upon the design of a virtual city named Micropolis, which has been laid out using a Geographic Information System (GIS) based software called ArcMap (marketed by ESRI). This paper studies the effects of a fire spread on the electrical distribution network of Micropolis. The fire can be initiated either through some natural event, e.g. a lightning...
One of the most important purposes of reliability assessment of distribution network is reducing interruptions for customer service. In this paper reliability of large distribution network of a city is calculated based on probabilistic method. After analysis the reliability indexes, some solutions are introduced to improve weak zones. By comparing results and using simple approaches we can improve...
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