Master Theses
Master Theses
Recently added
Now showing items 81-100 of 172
-
Analisis Pemanfaatan Data Mining dalam Penentuan Variabel untuk Prediksi Indeks Prestasi Mahasiswa Menggunakan Metode Back-Propagation Neural Network
(Universitas Sumatera Utara, 2011)The use of electronic academic data processing makes the administrative job easy. These academic data has also been used as the basis of decision making and when doing a research. The purpose of this study was to analyze ... -
Analisis Peningkatan Stabilitas Tegangan dengan Menggunakan Statcom Aplikasi PT. PLN (PERSERO) UPB Sumbagut
(Universitas Sumatera Utara, 2011)The demand for electricity has been substantially increasing while the expansion of power generation and power transmission very limited because of environmental restrictions and the limited resources. The consequence ... -
Pengurangan Arus Harmonisa Urutan Nol Dengan Zero Sequence Blocking Transformer dan Transformator Zig-Zag yang Menggunakan Tiga Buah Transformator Satu Fasa
(Universitas Sumatera Utara, 2014)The zero-sequence harmonics current or the third sequence of harmonic current generated by non-linear loads potentially cause power quality problems on 4-wires 3-phase distributed systems. This research exposes an harmonic ... -
Optimasi Saluran Pencatu Antena Mikrostrip Patch Segi Empat Dualband 2 Elemen pada Aplikasi Band Selular 1800 MHz dan WLAN 2400 MHz
(Universitas Sumatera Utara, 2017)A rectangular patch microstrip antenna is designed for dualband frequency on communications base on cellular 1800 MHz and WLAN 2400 MHz. The optimal configuration is obtained from using 2 units of 1 element antenna patch ... -
Analisis Penggunaan Dstatcom untuk Mengurangi Fluktuasi Tegangan yang Disebabkan oleh Tanur Busur Listrik Ac
(Universitas Sumatera Utara, 2010)EAF (Electric Arc Furnace) is a non-linear load with rapid change of load causes voltage fluctuations and flicker when connected to a weak electrical system. Harmonics on the EAF is caused by the voltage-current ... -
Peningkatan Kinerja Sistem Peramal Cerdas Perilaku Konsumen Menggunakan Teknik Regresi Kuadratik
(Universitas Sumatera Utara, 2015)Along with advances in the technology and increasing business competition today, especially in the field of sales of consumer products requiring an effective way to increase sales results. To support this activity is ... -
Karakterisasi Rugi-Rugi Lintasan Gelombang Radio di Atas Permukaan Laut pada Jaringan 4G 900 MHz
(Universitas Sumatera Utara, 2021)Saat ini, penggunaan perangkat komunikasi bergerak telah menjadi kebutuhan pokok, salah satunya di lingkungan maritim. Komunikasi di lingkungan maritim berbeda dengan di lingkugan darat karena sifat unik nya permukaan laut ... -
Prediksi Kerusakan Motor Induksi Menggunakan Metode Jaringan Saraf Tiruan Backpropagation
(Universitas Sumatera Utara, 2013)Induction motor (IM) is electric equipment which changes electric energy to mechanical energy as a revolving power. It is frequently used as a drive for doing many processes in industry. Even though it is reliable, it ... -
Perancangan Passive Single Tuned Filter untuk Mereduksi Harmonik Arus pada Transformator Arus akibat Beban Nonlinier
(Universitas Sumatera Utara, 2014)Current transformer, which is used for measurement and protection, can produce harmonics that usually causes problems such as the equipment does not function and the current is cut off from network. The result of the ... -
Analisa Perbandingan Perancangan Filter LCL pada Penyearah Terkendali Satu Fasa Full Converter dengan Penyearah PWM Satu Fasa Full Bridge
(Universitas Sumatera Utara, 2012)Electronics devices need a direct current power supply although now only one alternating current power supply is available. Therefore, ac-dc converters which can convert an alternating current power supply to a direct ... -
Analisis Dampak Harmonisa terhadap Kinerja Rele Proteksi Arus Lebih Statis
(Universitas Sumatera Utara, 2011)In recent years, there has been an increase of using electronical devices. Electric power or non-linear charge not only as a load but also as a control device resulting the form of voltage and currents to become non ... -
Perbandingan Penggunaan Filter Single Tuned dan Filter Orde Tiga untuk Mereduksi Harmonisa pada Juicer
(Universitas Sumatera Utara, 2014)Juicer is a household appliance used to squash fruit to make a drink called juice. Juicer is frquently used to make a dessert during a banquet. The result of measurement using PQ meter fluke 435 showed that this appliance ... -
Reduksi Harmonisa pada Sistem Distribusi 3 Fasa 4 Kawat Menggunakan Four Branch Star Filter dan Passive Single-Tuned Filter (Studi Kasus pada Transformator Distribusi 20 Kv/400 V)
(Universitas Sumatera Utara, 2014)Non-linear load in the electric power system of three four-wire phases generates positive/negative order current harmonics and zero order harmonics. These harmonics bring about the increase in resonant, voltage distortion, ... -
Analisis Dekomposisi Spektral Data Seismik dengan Tranformasi Wavelet Kontinu
(Universitas Sumatera Utara, 2011)Seismic data, is naturally a non-stationary signals that have different frequencies and in the form of time. Non-stationary signal is the seismic waves generated by elastic disturbances that propagate from one city to ... -
Analisa Dampak Harmonisa terhadap Transformator Distribusi dan Kerugian Finansial
(Universitas Sumatera Utara, 2011)The increasing development of technology today, bringing the changing pattern of human life in performing daily activities, including in terms of completing tasks that they were not separated from the use of assistive ... -
Deteksi dan Analisis Partial Discharge secara Online pada Generator Turbin Gas PLTGU Sicanang PT. PLN (Persero) Unit Pelaksana Pembangkitan Belawan
(Universitas Sumatera Utara, 2021)Partial discharge is a discharge of electricity in the insulation medium between two not completely connected electrodes. The effectivity and efficiency of a power plant to meet the electricity needs of an area is ... -
Patron Harmonisa Orde nol Sebagai Indikasi Arah DC Bias Pada Transformator
(Universitas Sumatera Utara, 2021)Transformator merupakan peralatan listrik yang sangat banyak digunakan dalam sebuah sistem kelistrikan baik mulai dari sisi pembangkitan dan tegangan tinggi hingga tegangan menengah dan tegangan rendah. Harmonisa merupakan ... -
Perbandingan Passive LC Filter dan Passve Single Tuned Filter untuk Mereduksi Harmonisa Variable Speed Drive dengan Beban Motor Induksi Tiga Fasa
(Universitas Sumatera Utara, 2014)Most of the tools that used as speed control of three phase induction motors rotation is 1 phase Variable Speed Drive (VSD), where VSD is a harmonic generator. Therefore the harmonics that arise in the VSD can be reduced ... -
Peredaman Harmonisa Beban Rumah Tangga dengan Low Pass Filter LCL
(Universitas Sumatera Utara, 2014)Nearly 90% of the household electrical load today uses either electronic load or non-linear load. The use of non-linear load includes energy-saving lights, televisions, radio-tape recorders, computers, printers, chargers, ... -
Karakterisasi Rugi-Rugi Lintasan Gelombang Radio di Atas Permukaan Laut pada Jaringan 4G 900 MHz
(Universitas Sumatera Utara, 2021)Currently, the mobile communication has become a basic need, one example is communication in the maritime environment. Communication in the maritime environment is different from that in the ground environment due to the ...
RSS 1.0