Temat: low voltage networks

Skocz do pozycji: 1.

Tytuł:: Statistical analysis of supply voltage levels for rural customers
Autorzy:: Nęcka, K.
Trojanowska, M.
Tematy:: low voltage networks
supply voltage quality; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Powiązania:: https://bibliotekanauki.pl/articles/410783.pdf Link otwiera się w nowym oknie
Opis:: In the elaboration, levels of supply voltage at the ends of loaded low-voltage lines were statistically evaluated, describing them using basic statistical measures and examining the frequency distributions. Levels of voltages and time of their occurrence on the background of current regulations were also assessed. It was found out that in spite of the fulfilment of statutory requirements electricity consumers complained about the poor, in their opinion, quality of the voltage.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Economic analysis of the functioning of spin-cast pre-tensioned concrete electric power poles and ferroconcrete poles production plant using the Net Present Value Method
Autorzy:: Nicał, A.
Tematy:: Net Present Value Method
electric power
networks of low and medium voltage; Pokaż więcej
Wydawca:: Fundacja na Rzecz Młodych Naukowców
Powiązania:: https://bibliotekanauki.pl/articles/115873.pdf Link otwiera się w nowym oknie
Opis:: This paper presents an analysis of the investment profitability of producing spin-cast pre-tensioned concrete electric power poles, used for the construction of overhead power lines of low and medium voltage. Decision-making criterion for an evaluation of profitability of investment in this case was the Net Present Value. Additionally, the study characterizes the current state of distribution networks of low and medium voltage in Poland and presents the need for modernization, which is planned for the coming years.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Software controlled low cost thermoelectric energy harvester for ultra-low power wireless sensor nodes
Autorzy:: Markiewicz, Michał
Konieczny, Tomasz
Skotnicki, Thomas
Dziurdzia, Piotr
Skomorowski, Marek
Urard, Pascal
Opis:: General hardware architecture of an energy-harvested wireless sensor network node (EH-WSN) can be divided into power, sensing, computing and communication subsystems. Interrelation between these subsystems in combination with constrained energy supply makes design and implementation of EH-WSN a complex and challenging task. Separation of these subsystems into distinct hardware modules simplifies the design process and makes the architecture and software more generic, leading to more flexible solutions. From the other hand, tightly coupling these subsystems gives more room for optimizations at the price of increased complexity of the hardware and software. Additional engineering effort could be justified by a smaller, cheaper hardware, and more energy-efficient a wireless sensor node. The aim of this paper is to push further technical and economical boundaries related to EH-WSN by proposing a novel architecture which – by tightly coupling software and hardware of power, computing, and communication subsystems – allows the wireless sensor node to be powered by a thermoelectric generator working with about 1.5°C temperature difference while keeping the cost of all electronic components used to build such a node below 9 EUR (in volume).
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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