نتایج جستجو برای: electric power distribution industry
تعداد نتایج: 1332017 فیلتر نتایج به سال:
This paper is devoted to the study of general issues teaching English terminology in electric power industry during Coronavirus. The outbreak pandemic posed a serious challenge education systems around world. For first time ever, traditional face-to-face training turned out be impossible. Governments’ decision make distance compulsory on all levels context coronavirus was unprecedented but need...
This paper discusses the Dynamic voltage restorer (DVR) operation and control for Voltage sags compensation. DVR is a series connected power electronic based device that can quickly mitigate the voltage sags in the system and restore the load voltage to the pre-fault value. Voltage sag associated with faults in transmission and distribution systems, energizing of transformers, and starting of l...
In the previous decade, fossil energy resources shortage and environmental challenges such as air and water pollution, global warming, and greenhouse-gas emissions, etc. have increased environmental concerns considerably. Since, one of the most practical and useful solutions to decrease environmental pollutants is to deploy green purchasing and clean energies by organizations or even government...
many studies have been done on hybrid vehicles in the past few years. the full hybrid vehicles need a large number of batteries creating up to 300 (v) to meet the required voltage of electric motor. the size and weight of the batteries cause some problems. this research investigates the mild hybrid vehicle. this vehicle includes a small electric motor and a high power internal combustion engine...
Few U.S. industries have been as directly affected by public policy as has electric power. From its beginning, the industry that provides us with electric energy has been at the center of shifting public debates over its structure and the form of its ownership. New policies drastically affecting the industry have been adopted in response to serious problems. Those policies, however, either fail...
The world is getting warmer, both in the atmosphere and in the oceans. The year 2005 was the warmest year in over a century, according to a recent NASA report (2006A). Data gathered from 1995 to 2006 have revealed that 11 of the past 12 years have ranked among the 12 warmest years in the instrumental record. Observations since 1961 have shown that the average ocean temperature has increased to ...
Exponent Failure Analysis Associates 149 Commonwealth Drive Menlo Park, CA 94025 [email protected] EPRI (formerly the Electric Power Research Institute), behalf of its member companies worldwide, has initiated a strategic research program in Human Performance (HP), designed to enhance HP management by development of approaches and tools for anticipating, monitoring, and addressing factors wit...
Proton exchange membrane (PEM) fuel cells being employed in fuel cell vehicles (FCVs) are promising power generators producing electric power from fuel stream via porous electrodes. Structure of carbon paper gas diffusion layers (GDLs) applying in the porous electrodes can have a great influence on the PEM fuel cell performance and distribution of temperature, especially at the cathode side whe...
49 he liberalization of the world’s energy markets is forcing the electric supply industry to reorganize itself from the ground up. On the one hand, it is expanding to include energy services, power marketing and information technology based services; and on the other, it is increasing asset utilization, reducing maintenance costs, and saving on investments by optimizing operation of the existi...
The role of the four electric power sectors in the Korean national economy: an input–output analysis
The electric power industry has played an important role in the dramatic economic development in Korea, and electricity has become a critical factor sustaining the well-being of the Korean people. This study uses input–output analysis to investigate the role of the four electric power sectors (hydroelectric, fossil-fuels, nuclear and non-utility) in the Korean national economy for the period 19...
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