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Dissertations / Theses on the topic 'Measuring transformer'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Junaydin, Mohamed Murad. "Automatically measuring the losses of a transformer." Thesis, Blekinge Tekniska Högskola, Institutionen för signalbehandling, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-12870.

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This thesis is an ongoing project of Alstom Power Sweden AB, Växjö with a collaboration of Blekinge Institute of Technology [BTH] to automatically measure the losses of a transformer. So far the company performed the measurements manually to get this loss, and they decided to automatize the measurement process. This paper presents the state space modelling approach of DC-DC Buck converter and simulation of the whole measurement circuit incorporated with the PID controller. The PID controller will control the outputs voltage of the buck converter and the output current of the resonant circuit (

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2

Rakk, Adrian. "Automatically measuring the resistive loss of a transformer : A project in cooperation with Alstom Power Sweden." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-10791.

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In order to develop more economical and ecologically friendly transformers it is necessary to know the losses throughout the product development process. There are several losses related to transformers, but in this particular case the focus will be on the resistive loss of the transformer. In order to measure this loss first the resonant frequency of the transformer is determined. Since at resonance the secondary side of the transformer is considered to be purely resistive. The aim of this paper is to design and build a closed loop measurement system that is able to perform this task.

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3

Bálint, Zoltán. "Průvlekový transformátor proudu 25 kV, 400/5/5 A." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217917.

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The aim of this master’s thesis is the design of a double-core bushing-type current transformer. This appliance is intended for measuring and protection of high-voltage distribution systems of the internal type for the highest system voltage of 25 kV. The master’s thesis is divided into four parts. The first part describes the function of the current transformer. The next part deals with the analysis of the phasor diagram and errors of the current transformer. The major part of the thesis deals with the design of the protective and measuring core. The last part describes the 3D model of the bu

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4

Dragana, Naumović Vuković. "Prilog savremenom etaloniranju strujnih mernih transformatora." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107383&source=NDLTD&language=en.

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U ovoj doktorskoj disertaciji prikazana je koncepcija, realizacija i potvrda nove metodejednovremenog etaloniranja strujnih mernih transformatora sa dve različite merneaparature. Pregledom stručne literature ne postoji podatak da je ova metoda ranijeprimenjivana. U disertaciji su prikazane različite merne metode za ispitivanje ietaloniranje mernih transformatora koje imaju primenu u savremenoj praksi i kojepodrazumevaju i različite merne mogućnosti. Takođe je i ekperimentalno potvrđenojednovremeno ispitivanje i etaloniranje strujnih mernih transformatora sa nekolikomernih aparatura koje su zas

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5

Завадський, Богдан Володимирович, та Bohdan Zavadskyi. "Оптимізація системи електропостачання трансформаторної підстанції 110/10 кВ". Master's thesis, Тернопільський національний технічний університет імені Івана Пулюя, кафедра електричної інженерії,Тернопіль, Україна, 2021. http://elartu.tntu.edu.ua/handle/lib/36648.

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У зв'язку зі зростанням технологічного прогресу, розумні системи все частіше використовуються в різних сферах людської діяльності. Розумні системи дозволяють технікам, адміністраторам і менеджерам контролювати і продуктивність і роботу пристроїв з безпечної відстані. Сфера енергетики не є винятком. Розподільчі мережі компанії повинні управляти розподільною мережею, яка є однією з найважливіших частин електромережі [1]. В даний час для загального розвитку промисловості країни необхідні трансформації в енергетичному секторі. Завдання цифровізації енергетики було поставлено на найвищому р

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6

Šumberák, David. "Přístrojový transformátor proudu 12kV, 4000//5/5A." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220954.

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This master´s thesis describes the development proposal and production of instrument current transformer in one turn primary winding with 4000//5/5 A transfer. The thesis involves a theoretical analysis, a numerical calculation, a developmental 3D model, corresponding simulations and a standard testing of the transformers. There is a complete written description of measuring current transformer cycle from the development to the production. The transformer development and production works were collaborated with the company KPB Intra s.r.o. The company engages in development, production and sale

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7

Vykoukal, Tomáš. "Měřicí transformátor proudu 2500/1 A pro soustavy s nejvyšším napětím 0,72 kV." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399564.

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This thesis deals with the description, analysis, calculation, production and testing of current instrument transformer. It is a measuring current transformer in one turn primary winding with 2500/1 A transfer. This project includes theory, analysis, numerical calculation, thermal simulation and partial type test of the measuring current transformer. This transformer is developing in cooperation with KPB Intra s.r.o. KPB Intra is engaged in the development and production of instrument transformers.

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8

Lengvinas, Danius. "Elektros energijos apskaitos prietaisų charakteristikų tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100618_135329-87271.

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Šio darbo tyrimo tikslas – ištirti elektros energijos apskaitos prietaisų, indukcinių ir elektroninių, charakteristikas. Buvo atlikta informacijos šaltinių analizė apie indukcinių ir elektroninių elektros energijos skaitiklių ir srovės matavimo transformatorių parametrus, apsprendžiančius jų charakteristikas. Remiantis informacijos šaltinių apibendrinimu suformuota hipotezė: ne visos elektroninių elektros energijos prietaisų charakteristikos geresnės už indukcinių elektros energijos apskaitos prietaisų charakteristikas. Suformuoti tyrimo uždaviniai: ištirti elektroninių ir indukcinių elektros

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9

Ванько, В. М., В. Р. Куць та В. Б. Здеб. "Сучасна агрономічна тростина для моніторингу температури грунту при вирощуванні сільськогосподарських культур". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66760.

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На даний момент в Україні одним з перспективних напрямків підвищення врожайності сільськогосподарських культур вважається застосування новітніх технічних і технологічних засобів для моніторингу стану ґрунту, в якому здійснюється вирощування того чи іншого аграрного продукту. Відомо багато прикладів нових технічних пристроїв для вимірювання параметрів ґрунту, що характеризують його температуру, вологість, вміст корисних і шкідливих речовин, призначених для ефективного вирощування аграрного продукту, захисту від шкідників та наявних у ґрунті речовин, що мають місце через вплив навколишнь

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10

Zimek, Alois. "Snímače střídavého a stejnosměrného proudu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217921.

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The aim of this master’s thesis is to focus on analysis of a current transformer with feedback correction of measuring error, make an AC current sensor and verify its qualities experimentally. The measuring scale of this transformer is I = 0 to 100A, f = 50Hz.

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11

Berryman, Fiona. "Fourier transform profilometry for measuring back shape in scoliosis." Thesis, University of Wolverhampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430997.

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12

Kutrowski, Tomasz. "A steady state model for prediction of amplitude and phase errors in measuring current transformers." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/74527/.

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Foreseen expansion and increasing complexity of power distribution networks will increase demand for accurate metering of electric energy flow. The current transformer (CT) is widely used in measurement systems and has direct effect on the overall accuracy of electric power measurement. Therefore, its design and performance are of great importance. A steady state model of a CT is proposed to relate its performance to basic magnetic properties of its core. It enables a CT amplitude and phase errors to be predicted from the magnetic permeability and power loss of its core. Therefore it can be ea

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13

KOSA, NADHIR BAHJAT. "NEW INTERFEROMETRIC METHOD FOR MEASURING CHROMATIC DISPERSION IN SINGLE MODE FIBERS (FOURIER TRANSFORM)." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184171.

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A new interferometric method which indirectly measures the total chromatic dispersion of a single mode fiber is demonstrated. The technique utilizes a short length of fiber, an unmodulated broadband source, simple low frequency electronics, and a standard interferometer. The concept of this measurement is based on the behavior of the uncorrelated individual bursts of light from the elemental emitters that constitute a thermal source. Their propagation through a dispersive media, e.g., silica fiber, which is placed in one arm of the interferometer, is delayed and broadened. They will interfere

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14

Tomaštík, Roman. "Měření pomocí vzorkovací počítačové karty - laboratorní úloha." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218597.

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This thesis focuses on the measurement with the help of sampling cards and determination of the basic parameters of the measured signal. There will be described basic characteristics of the used card Alazartech ATS860- 256M and brief description of the programming languages which will control the cards. In these environments there were the created driving programs for the operation of these cards. Main measuring program was created in the language C\C++, that shall work as oscilloscope and the same time as spectral analyzer. This programme will determine basic characteristics of the measured s

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15

VELOSO, MARCELO N. "Avaliação in vitro dos efeitos da radiação ionizante em tecido ósseo bovino por espectroscopia ATR-FTIR e análise dinâmico-mecânica." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10573.

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Made available in DSpace on 2014-10-09T12:42:07Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:04:44Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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16

Hanák, Pavel. "Optická detekce elektrogramů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220286.

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The aim of the study was focused on problem of electrograms recording with using voltage sensitive dyes. Study of electrograms recording was extended with thema of optical detectors suitable for measurement and noise analysis. Elimination of noise and disturption was made in program Matlab; lowpass filtration and wavelet transformation was used. Application for electrograms analysis was developed in latter part of this work.

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17

Hanák, Pavel. "Měření a zpracování elektrogramů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-374605.

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The aim of the study was focused on problem of electrograms recording from alive tissue. Study of electrograms recording was extended with noise analysis and its elimination. Elimination of noise and disturption was made in program Matlab; lowpass filtration and wavelet transformation was used. Application for electrograms analysis was developed in latter part of this work.

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18

Dejana, Herceg. "Modelovanje mernih transformatora bez jezgra sa feromagnetskim oklopom." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. https://www.cris.uns.ac.rs/record.jsf?recordId=96158&source=NDLTD&language=en.

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U ovoj doktorskoj tezi razvijen je postupak za ispitivanje uticajaoklopa na merni transformator bez jezgra sa stanovištalinearnosti transformatora i zaštite transformatora oduticaja elektromagnetske smetnje. Formiran je parametarski modeloklopa i mernog transformatora bez jezgra. Izvedena su merenjamagnetskih karakteristika feromagnetskih materijala, dat je novianalitički model histerezisa i određene su krive magnetisanja ipermeabilnosti materijala. Na osnovu numeričkih ieksperimentalnih rezultata, a u skladu sa definisanimkriterijumom, izvršena je analiza kvaliteta oklapanja zarazmatrane tipo

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19

MUSUMECI, LUCIANO. "Advanced signal processing techniques for interference removal in Satellite Navigation Systems." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2550137.

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This thesis investigates the use of innovative interference detection and mitigation techniques for GNSS based applications. The main purpose of this thesis is the development of advanced signal processing techniques outperforming current interference mitigation algorithms already implemented in off-the-shelf GNSS receivers. State-of-the-art interference countermeasures already investigated in literature, which process the signal at the ADC output, provide interference components suppression in the time domain or in the frequency domain, thus leading to a significant signal degradation in harm

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20

Komárek, Filip. "Návrh rekonstrukce stávající vstupní rozvodny a kabelové sítě 22 kV v areálu fakultní nemocnice." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377072.

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This master's thesis deals with the area hospital distribution networkand one of the hospital's entry substation. The first part of this master's thesis deals with the project of the new cable network, her gradual revival without any power outages at the collection points. Futher, in this thesis is project of temporary transformer station for supplying power during the reconstruction of the HV switchboard. Subsequently, in this thesis is project of the new HV switchboard in one of the entry substation. new HV switchgear and a new HV substation were projected. Futher, in this thesis is proposed

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21

Koníček, Pavel. "Diagnostika vibrací elektromagnetického původu v asynchronním motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220713.

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The aim of this master´s thesis is to introduce methods of diagnostics of vibrations in electrical machines. Describe the various vibration sources located inside and outside of the electric machine. Description of the sources of vibration is then preferably dedicated to vibration of electromagnetic origin. There is a description of the construction of an asynchronous motor and the magnetic circuit, the theory of vibrations and their origin. Described are also vibration sensor enables measurement and mathematical tools for their evaluation. In this work also practical vibration measurements on

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22

Clemmer, Katharine W. "How Involving Secondary Students in the Assessment Process Transforms a Culture of Failure in Mathematics to a Culture of Accountability, Self-Efficacy and Success in Mathematics: Student Action Plans, Assessment, and Cultural Shift." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-79595.

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Learn how to realize a measurable increase in student engagement and achievement in mathematics through a guided, collaborative, and active process grounded in mathematics. Students and teachers collaboratively devise a data-driven plan of action that moves learning forward for all students and effectively supports at-risk secondary students in urban environments. Learn how teachers in the LMU Math and Science Teaching Program effectively implement assessments as motivations for student achievement and develop opportunities for students to demonstrate comprehension and retention of essential c

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23

Hsu, Pei-Huei, and 徐百輝. "A Study of Applying Hough Transform in Measuring Fiducial Marks and Conjugate Points of Photogrammetry Images." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/55743213547404498937.

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24

Yi-Shiaw, Huang, and 黃奕孝. "The Development and Application of Fourier Transform Infrared Technology Measuring VOC Emissions From Petrochemical and Semiconductor Industries." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/48706976142136568469.

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25

Friesen, Rachel Katherine. "Measuring the submillimeter dust emission from hot molecular cores testing a fourier transform spectrometer for the submillimeter." 2004. http://hdl.handle.net/1828/596.

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26

Chen, Hong-Jie, and 陳虹潔. "Establishment of a rapid detection method for measuring soybean oil quality by Fourier transform near infrared spectroscopy." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/xx6as9.

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碩士<br>國立屏東科技大學<br>食品科學系所<br>106<br>Oil is one of the important essentials in people life. People attached importance to oil quality after tainted oil event. Acid value (AV) and peroxide value (POV) are indicators of deterioration of fat rancidity index. According to Chinese National Standards (CNS), edible soybean oil conform standards that AV is below 0.15 mg KOH / g and POV is below 10 meq/kg. Traditional titration method was time-consuming and not environment-friendly. In order to be able to maintain oil quality and detect quickly, this study combines Fourier transform near-infrared spectro

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27

(5929973), Cheng-Hsien Lin. "MEASURING SOIL NITROUS OXIDE EMISSIONS BY USING A NOVEL OPEN PATH SCANNING TECHNIQUE." Thesis, 2019.

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A better way to improve understanding and quantification of nitrous oxide (N<sub>2</sub>O) emitted from intensive maize cropping systems is to develop an advanced emissions measurement method This study developed an open path (OP) method to measure N<sub>2</sub>O emissions from four adjacent maize plots managed by tillage practices of no-till (NT) and chisel plow (ChP), and different nitrogen (N) treatments from 2014 to 2016. Anhydrous ammonia (220 kg NH<sub>3</sub>-N ha<sup>-1</sup>) was applied in once or equally split (full vs. split rate) and applied in different timing (Fall vs. Spring).

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