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  Title: Научния електронен архив на ТУ – София (Репозиториум на ТУ - София) 2022  Date: 2022-10 Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Формуляр за предоставяне на право за публикуване на авторски материал  Date: 2022-10 Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: П Р А В И Л Н И К за работа с Научния електронен архив (Репозиториум) на Технически университет – Софи  Date: 2022-10 Abstract: резюме Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Изследване на програмируем токоизточник за електроекстракция на метали  Author: Захариев, Светлозар; Zahariev, Svetlozar; Димитров, Димитър; Dimitrov, Dimitar Date: 2009 Abstract: The process of metal extraction of solution with low and middle concentration is of great interest. It is worked out with programming current sources. A programming current source for impulse current with computer process control is represented. Block-structural scheme and algorithm of the developed and investigated source is shown. Well ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Енергийна ефективност и светлинни технологии  Author: Василев, Христо Николов; Vasilev, Hristo Nikolov Date: 2009 Abstract: The modern tendencies in a lighting technology and lighting energy efficiency are discussed in the paper. A review of the problems in that area is made. The global measures taken for improvement of the lighting efficiency and their influence on the methods and equipment used in lighting installations are pointed. The impact of those new ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Ограничаване на блуждаещите токове при постояннотоков релсов електрически транспорт  Author: Петкова, Полина; Petkova, Polina Date: 2009 Abstract: DC electrical grid system for railway transport feeding in Bulgaria uses track rails as a return path (feeder) to the substation. When this type of feeding is used the underground utility structures and the transportation equipment are exposed to active corrosion because of the stray currents going from the rails to the earth. Overview of ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Интелигентни системи на електрически инсталации  Author: Иванов, Захари Александров; Ivanov, Zahari Alexandrov Date: 2009 Abstract: Everybody wants from us to make main comfort, security of the appliances, as well to better the quality of his life. New technology EIB for intelligent systems of electric facilities that considerably will relieve our life is made. It is the goal of the present work for it clarifies this new technology with her particularities and the ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Постояннотоков цифров амперметър за лабораторни стендове  Author: Ангелов, Иван; Angelov, Ivan Date: 2009 Abstract: When building a new laboratory stands or upgrading of old ones require measuring the current through the shunt in the circuits [1]. Shunt is connected to a suitable measuring system with a scale corresponding to its parameters. Such measuring systems are relatively difficult and expensive. On the market there are many types of digital voltage ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Аспекти на промените в управлението на електроенергийната система, свързани с директива 2009/72/ес и произтичащи от тях възможности  Author: Кънева, Мария; Kaneva, Maria; Стоилов, Димо Георгиев; Stoilov, Dimo Georgiev Date: 2009 Abstract: The energy act in Bulgaria introduces new model for electricity market complying with Directive2009/72/EU that is to assure access to third party. In the dawn of common European market for electric energy it is important to study the possibilities for effective use of existing utilities as well as to introduce new for Bulgarian power system ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Изследване на енергийната ефективност на типови осветителни уредби в хотели  Author: Николова, Камелия Симеонова; Nikolova, Kamelia Simeonova Date: 2009 Abstract: The current paper presents an analysis of the imposed ways in the lighting design practice of illuminating public areas with continuous working time in the most popular hotels (foyers). There are evaluated the annual expenses for illuminating these areas per square meter basis on multiple lighting design with different sources and controlling ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Система за мрежово управление и контрол на осветителни уредби в обществени сгради  Author: Пачаманов, Ангел Саракинов; Pachamanov, Angel Sarakinov; Петринска, Ива; Petrinska, Iva; Матанов, Николай Стефанов; Matanov, Nikolai Stefanov Date: 2009 Abstract: The current paper presents a lighting monitoring and control system for public buildings, developed in the “Electrical Power Supply, Electrical Equipment and Electrical Transport” department of the Technical University – Sofia. The system consists of target units for the different rooms and a host unit for data storage. Every target unit ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Изменение на мощността на фотоволтаична система в експлоатационни условия  Author: Платиканов, Стойо; Platikanov, Stoyo; Цанков, Пламен; Tsankov, Plamen; Маркова, Дешка; Markova, Deshka Date: 2009 Abstract: The Technical University of Gabrovo has participated in projects under JOULE, Copernicus and the Fifth Framework Program of the European Commission. The project entitled “PV Enlargement – Technology Transfer, Demonstration and Scientific Exchange Action for the Establishment of a Strong European PV Sector” under the Fifth Framework Program ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Конструирането на улични осветители съc светодиоди изисква нови бази знания  Author: Василев, Христо Николов; Vasilev, Hristo Nikolov; Георгиев, Вълчан Тодоров; Georgiev, Vulchan Todorov; Ганчев, Ганчо; Ganchev, Gancho Date: 2009 Abstract: The LEDs are the future of the lighting technology. The power of the single LED is in the range of 1-5 W and more. Therefore certain issues concerning the thermal management and lighting flux control arise. The body of the luminaries increases in size and weight which hampers the construction of the optical; system. The design of LED ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Стенд за изследване на реактивни товари с променлив характер и тяхното компенсиране  Author: Георгиев, Вълчан Тодоров; Georgiev, Valchan Todorov; Бойчев, Борислав Богданов; Bojchev, Birislav Bogdanov; Матанов, Николай Стефанов; Matanov, Nikolai Stefanov; Господинов, Васил Спасов; Gospodinov, Vasil Spasov Date: 2009 Abstract: The character of the reactive power of the load (leading or lagging) cash change according to the working regime in a specific topology of electrical power supply network. That can lead to significant financial expenditure dew to the power energy returned to the main. Different ways of compensation of reactive loads in such a case are ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Изследване на кaчеството на електрическата енергия в електроснабдителна система ниско напрежение захранваща помпена станция  Author: Цветкова, Светлана Георгиева; Tzvetkova, Svetlana Georgieva; Петлешков, Ангел Стоянов; Petleshkov, Angel Stoyanov; Цанев, Цанчо Борисов; Tzanev, Tzancho Borisov Date: 2009 Abstract: The frequency drives are basic element in the automation and control systems of the pump units. The large use of frequency drives lead to worsen of the electrical energy quality indexes and increasing of the active power and electric energy losses in the basic elements of the electric supply system. Results from measurement and analysis of ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Изследване сезонните колебания на слънчевата енергия  Author: Стоянов, Ивайло; Stoyanov, Ivaylo Date: 2009 Abstract: The result of continuous observations of the monthly solar radiation, on the territory of Ruse University from January 2005 to August 2009, have been presented in this study. The levels of solar energy for the different seasons and months of the year, and their influence on a low power photovoltaic system have been analyzed. Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Управление на инверторно асинхронно електрозадвижване с програмируем логически контролер от фамилията SIMATIC S7-200 НА SIEMENS  Author: Павлов, Георги Митков; Pavlov, Georgi Mitkov; Димитров, Васил; Dimitrov, Vasil Date: 2009 Abstract: This paper presents the technical parameters and characteristics of a contemporary microprocessor control with a programmable logic controller (PLC) of the S7-200 series on an inverter asynchronous electrical drive. It is suggested to build a laboratory simulator, which meets the contemporary requirements for the educational and research ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Система за адаптивно управление на улични осветителни уредби  Author: Пачаманов, Ангел Саракинов; Pachamanov, Angel Sarakinov; Матанов, Николай Стефанов; Matanov, Nikolai Stefanov; Христов, Константин; Hristov, Konstantin Date: 2009 Abstract: The current paper describes the functions of a control system for adaptive road lighting, developed in the “Electrical Power Supply, Electrical Equipment and Electrical Transport” department of the Technical University of Sofia. The system’s hierarchy consists of power line controllers, mounted in the base of the lighting poles and bridge ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Разработване на унифицирана методика за обучение по обследване енергийната ефективност на асинхронни електрозадвижвания  Author: Динолов, Огнян; Dinolov, Ognjan; Андонов, Кондю; Andonov, Kondio; Кръстева, Анка; Krusteva, Anka; Коев, Константин; Koev, Konstantin Date: 2009 Abstract: Based on the constructed automated system a unified training procedure on energy-efficiency investigation in induction motor drives is developed. The procedure and the corresponding learning process, respectively, are organized into six main stages. In order to implement the procedure in the teaching and training of specialists, a computer ... Library:

  TECHNICAL UNIVERSITY - SOFIA
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  Title: Моделиране на приходите при анализ на проектите с възобновяеми източници на енергия  Author: Андонов, Кондю; Andonov, Kondyu; Мартев, Красимир; Martev, Krasimir; Коев, Константин; Koev, Konstantin; Динолов, Огнян; Dinolov, Ognyan; Новакова, Атанаска; Novakova, Atanaska Date: 2009 Abstract: A solar photovoltaic energy park (117 kW) and a wind energy generator (225 kW) are investigated. An assessment and prognostic revenues methodology for sale and trading the harmful emissions of electrical produced energy by render an account of interests, inflation and the cost change of same energy is offers. The purpose of methodology is ... Library:

  TECHNICAL UNIVERSITY - SOFIA

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