Distributed vs. spot temperature measurements in dynamic rating of overhead power lines
نویسندگان
چکیده
منابع مشابه
Lightning Protection of Overhead Power Distribution Lines
Distribution lines are often located in areas with high ground flash densities, being therefore subject to lightning-caused power interruptions. This paper presents an overview of the various types of lightning overvoltages that can arise on overhead power distribution networks, as well as typical voltage waveforms. The effectivenesses of the most important methods for mitigating such overvolta...
متن کاملPower transmission capacity upgrade of overhead lines
Electric power consumption, has been increasing uninterruptedly, being this increase specially accelerated in the last years. New power generators are been built, the installed power increases each year, thus it is necessary a way to transmit the bulk energy. Nowadays electric lines are saturated, they are reaching critical values of ampacity and sag. Therefore building new lines is necessary t...
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اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...
15 صفحه اولEmissions of electromagnetic fields caused by sagged overhead power lines
Nowadays people became aware of the overhead lines and their emissions of electromagnetic fields. This work presents a method for calculation of the electric field strength and magnetic field density caused by the overhead power lines at the ground level. The method considers the conductor sagging. It is shown that the sagged conductors can be replaced with the properly placed straight conducto...
متن کاملAtmospheric Sensors and Energy Harvesters on Overhead Power Lines
We demonstrate the feasibility of using novel, small energy harvesters to power atmospheric sensors and radios simply attached to a single conductor of existing overhead power distribution lines. We demonstrate the ability to harvest the required power for operating multiple atmospheric and power-system sensors, together with short-range radios that could broadcast atmospheric sensor data to th...
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ژورنال
عنوان ژورنال: Electric Power Systems Research
سال: 2019
ISSN: 0378-7796
DOI: 10.1016/j.epsr.2019.01.038