نتایج جستجو برای: distance from fault 0034
تعداد نتایج: 5753149 فیلتر نتایج به سال:
This paper describes the modeling of distance relay using Matlab/Simulink package. SimPowerSystem toolbox was used for detailed modeling of distance relay, transmission line and fault simulation. Inside the modeling, single line to ground (SLG) fault was choose to be the fault type and Mho type distance characteristic was choose to be as the protection scheme. A graphical user interface (GUI) w...
[This corrects the article DOI: 10.1055/s-0034-1390789.].
Background and objective: human settlements have faced various crises since long ago, of which the earthquake crisis was one of the most common; Therefore, in order to manage the crisis, it is necessary to evaluate the vulnerability of different areas of the city in the face of that crisis and to plan for it according to the vulnerability of each area. Khorram Abad city is located in an area wi...
This paper presents a fault location technique for transmission lines with minimum current measurement. This algorithm investigates proper current ratios for fault location problem based on thevenin theory in faulty power networks and calculation of short circuit currents in each branch. These current ratios are extracted regarding lowest sensitivity on thevenin impedance variations of the netw...
the high hillsides of the tehran metropolis are prone to landslides due to the climatic conditions and the geological, geomorphologicalcharacteristics of the region. therefore, it is vitally important that a landslide susceptibility map of the region be prepared. for thispurpose, thematic layers including landslide inventory, lithology, slope, aspect, curvature, distance to stream, distance to ...
Rock falls are natural process of activities geomorphic on steep slopes in mountainous terrains. At this research, rock fall susceptibility mapping was generated by logistic regression (LR), frequency ratio (FR) and analytical hierarchy process (AHP) at a long 11 km of the Salavat Abad road in the eastern of Sanandaj, Kurdistan, Iran. Dependent variables is occurrence and non-occurrence of rock...
Purpose: The purpose of this study is to investigate the level of inequality and social inequalities gap in Urmia City considering the spatial distribution of public libraries and the urban places which have those services. Methodology: This is an analytical and descriptive study. The data gathered using a combination of documentation and field study. To evaluate the spatial justice in th...
با توجه به این که در سیستم های صنعتی وقوع fault ممکن است منجر به خرابی کالا، خرابی دستگاه، افت عملکرد و یا تلفات جانی شود، شناسایی و تشخیص به موقع fault و همچنین جبران سازی آن از اهمیت کاربردی بسیار بالایی برخوردار می باشد. عمده ی سیستم های صنعتی را سیستم های غیر خطی و هایبرید با ورودی ها یا حالت های ناهمگون تشکیل می دهند. بنابراین شناسایی fault در این سیستم ها و تلاش برای جبران اثرات آن به کمک...
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...
The selection of municipal solid waste landfills is significant because it controls environmental pollution and its problems. Since site selection is a time-consuming and multifaceted process involving various socio-economic and environmental parameters, it requires expert opinion, extensive information resources, and multi-criteria methods. Therefore, this study was carried out for landfill si...
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