1,720,952 research outputs found
MONITORING SUPLAI TEGANGAN PADA MOTOR INDUKSI TIGA FASA MENGGUNAKAN MIKROKONTROLER ARDUINO DAN SENSOR TEGANGAN ZMPT101B
Full text linkABSTRAK
PUTRI RAMADHANI ADAM, MONITORING SUPLAI TEGANGAN PADA MOTOR INDUKSI TIGA FASA MENGGUNAKAN MIKROKONTROLER ARDUINO DAN SENSOR TEGANGAN ZMPT101B, Skripsi. Jakarta: Fakultas Teknik Universitas Negeri Jakarta 2020. Dosen Pembimbing: Drs. Purwanto Gendroyono, MT., Nur Hanifah Yuninda, ST.MT.
Penelitian ini bertujuan untuk membuat sistem monitoring suplai tegangan motor induksi tiga fasa berbasis mikrokontroler Arduino Uno menggunakan sensor tegangan ZMPT101B. Selain itu, dalam penelitian ini bertujuan untuk mengetahui persentase ketidakseimbangan tegangan sumber yang masuk pada motor induksi 3 fasa berdasarkan standar The National Standard for Electric Power System and Equipment ANSI Std C84.1-1995, NEMA Std MGI.2009 dari hasil monitoring alat yang telah dibuat.
Metode penelitian yang digunakan penulis yaitu metode eksperimen laboratorium yang meliputi manipulasi, pengendalian, dan pengamatan. Adapun penelitian yang dilakukan yaitu membuat sistem monitoring tegangan menggunakan tiga Arduino Uno dan tiga sensor tegangan ZMPT101B yang dihubungkan pada laptop. Kemudian dibuat pemrograman untuk pembacaan masing-masing sensor tegangan ZMPT101B yang telah dihubungkan pada sumber tegangan yang masuk ke motor induksi tiga fasa. Setelah itu, hasil monitoring pembacaan sensor dapat ditampilkan pada serial monitor yang ada di aplikasi Arduino IDE pada laptop.
Hasil penelitian menunjukkan bahwa nilai persentase ketidakseimbangan tegangan rata rata untuk di waktu pagi nilainya masih di bawah 1 %. Sedangkan untuk nilai persentase ketidakseimbangan tegangan di waktu siang dan sore hari nilainya sudah di atas 1 %. Jika sesuai dengan standar, persentase ketidakseimbangan tegangan yang diijinkan tanpa melakukan derating (penurunan daya) berdasarkan NEMA adalah 1 %. Sedangkan, maksimum persentase ketidakseimbangan tegangan yang diijinkan adalah 5 %. Maka, hasil dari data penelitian ketiga waktu tersebut yang paling aman kondisinya adalah di waktu pagi hari. Sedangkan, data penelitian yang diambil saat siang dan sore hari kondisinya masih aman tetapi akan ada penurunan daya. Selain itu, Perbandingan sensor tegangan ZMPT101B dengan alat ukur AVO meter digital saat mendeteksi tegangan memiliki error rata-rata yaitu 0,07 % untuk sensor tegangan ZMPT101B yang pertama, 0,28 % untuk sensor tegangan ZMPT101B yang kedua dan 0,15 % untuk sensor tegangan ZMPT101B yang ketiga. Sehingga dapat dikatakan bahwa sistem monitoring tegangan yang dibuat sesuai dengan ketentuan dan bisa diaplikasikan sebagai pembelajaran mahasiswa Pendidikan Teknik Elektro.
Kata Kunci: Ketidakseimbangan Tegangan, Monitoring, Motor Induksi 3 Fasa, Arduino Uno, Sensor Tegangan ZMPT101B
PUTRI RAMADHANI ADAM, VOLTAGE SUPPLY MONITORING ON THREE PHASE INDUCTION MOTOR USING ARDUINO MICROCONTROLLER AND ZMPT101B VOLTAGE SENSOR, Skripsi. Jakarta: Faculty of Engineering, Jakarta State University 2020. Supervisor: Drs. Purwanto Gendroyono, MT., Nur Hanifah Yuninda, ST.MT.
The purpose of this study is to create a three-phase induction motor voltage monitoring system based on Arduino Uno microcontroller using a ZMPT101B voltage sensor. In addition, this study aims to determine the percentage of voltage unbalance on a 3 phase induction motor based on the National Standard for Electric Power System and Equipment ANSI Std C84.1-1995, NEMA Std MGI.2009 from the results monitoring tools that have been made.
The research method used by the author in completing this research is the laboratory experimental method which includes manipulation, control, and observation. The research conducted is to create a voltage monitoring system using three Arduino Uno and three ZMPT101B voltage sensors that are connected to a laptop. Then programming is made for the reading of each ZMPT101B voltage sensor which has been connected to the voltage source that enters the three-phase induction motor. After that, the results of monitoring the sensor readings can be displayed on the serial monitor in the Arduino IDE application on the laptop.
The results showed that the value of the percentage of voltage unbalance, the average for the morning the value is still below 1%. As for the value of the percentage of voltage unbalance in the afternoon and evening, the value is already above 1%. If according to the standard, the percentage of voltage unbalance permitted without derating (based on power reduction) based on NEMA is 1%. Meanwhile, the maximum percentage of allowable voltage unbalance is 5%. So, the results of the research data of the three times the safest condition is in the morning. Meanwhile, research data taken during the afternoon and evening conditions are still safe but there will be a decrease in power. In addition, the comparison of the ZMPT101B voltage sensor with a digital AVO meter when detecting the voltage has an average error of 0.07% for the first ZMPT101B voltage sensor, 0.28% for the second ZMPT101B voltage sensor and 0.15% for the sensor the third voltage ZMPT101B. So that it can be said that the voltage monitoring system that is made in accordance with the provisions and can be applied as learning by students of Electrical Engineering Education.
Keywords: Voltage Unbalance, Monitoring, 3 Phase Induction Motor, Arduino Uno, ZMPT101B Voltage Senso
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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