نتایج جستجو برای: lighting power substation

تعداد نتایج: 503782  

2003
Volker Lohmann

INTRODUCTION In view of the envisaged competitive electricity market era, utilities are examining the application of information technology (IT) as an alternative to support corporate business strategies that focus on improving service, power quality and reducing cost of operation and maintenance. Key issues for the improvement of the overall productivity are more and better information concern...

Journal: :Applied sciences 2022

Fault detection of Substation Power Transformer by Non-contact measurement is important for the safety machines, instruments, and human beings. To make non-contact as convenient possible, it desirable that efficient algorithms based on AE (acoustic emission) discrimination are developed. This paper presents a system quick effective fault substation power transformer, signals collected single mi...

2004
Marco Martinelli Enrico Tronci Giovanni Dipoppa Claudio Balducelli

The aim of this work is to propose an approach to monitor and protect Electric Power System by learning normal system behaviour at substations level, and raising an alarm signal when an abnormal status is detected; the problem is addressed by the use of autoassociative neural networks, reading substation measures. Experimental results show that, through the proposed approach, neural networks ca...

2007
M. Miki T. Hiroyasu

We propose a lighting system which adjusts lighting colors. The lighting system adjusting colors is a system that provides required illuminance and lighting color at an appropriate location. This system consists of many intelligent lighting with RGB fluorescent lamps, many chroma sensors and an electric power meter. These equipments are connected to a network. The chroma sensor can measure the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی برق 1387

گستره کاربرد پست های gis به خاطر مزیت های متعدد آن ها از قبیل کوچک سازی پست ها، مشخصه های ضد آلودگی، قابلیت اعتماد بالا و عدم نیاز به تعمیر و نگهداری متوالی، در حال توسعه می باشد. یکی از پدیده هایی که فواصل عایقی داخل محفظه بسته را در این نوع پست ها مورد تهدید قرار می دهند، وقوع اضافه ولتاژهای بسیار سریع می باشد که این نوع اضافه ولتاژها معمولا در اثر عملکرد کلیدزنی سکسیونرهای پست بوجود می آیند....

Journal: :Expert Syst. Appl. 2016
Hugo Rocha Igor S. Peretta Gerson Lima Leonardo Garcia Marques Keiji Yamanaka

A proper professional lighting design implies in a continuous search for the best compromise between both low power consumption and better lighting quality. This search converts this design into a hard to solve multi-objective optimization problem. Evolutionary algorithms are widely used to attack that type of hard optimization problems. However, professionals could not benefit from that kind o...

Journal: :JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 2006

Journal: :Minutes of the Proceedings of the Institution of Civil Engineers 1893

Journal: :E3S web of conferences 2021

The noise in substations has become one of the most concerning problems field power grid. In this paper, principle substation layout optimization based on maximum acoustic ray shielding method is established premise sound wave propagation rule complicated air medium to meet requirements relevant national environmental standards for at boundary substation. By establishing simulation analysis mod...

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