Results 81 to 90 of about 6,993,106 (201)

Evidence of a local BCC‐type coordination of cobalt in FCC taenite of iron meteorites

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 8, Page 1861-1874, August 2026.
Abstract Ni, Co, and Fe K‐edge X‐ray absorption fine structure (XAFS) measurements were performed, revealing an unexpected local structure around Co in well‐known iron and stony‐iron meteorites. Cobalt is enriched in kamacite but remains in taenite at concentrations of at least 0.3 atom%.
Kanako Yoshihara   +5 more
wiley   +1 more source

Design and Simulation of a Carrier PWM‐Based Capacitor to Support a Dynamic Voltage Restorer for Voltage Swell and Voltage Mitigation in the Distribution System

open access: yesEngineering Reports, Volume 8, Issue 7, July 2026.
This study designs and simulates a capacitor‐supported dynamic voltage restorer (DVR) using Carrier PWM control to mitigate voltage sags, swells, and distortions in three‐phase distribution systems. The self‐supported DVR employs a DC‐link capacitor as an energy buffer, eliminating external storage needs. Control via Synchronous Reference Frame Theory (
Tamiru Debela Awas   +3 more
wiley   +1 more source

Pemilihan Jenis Penerangan Berdasarkan Besar Daya, Fluks Cahaya, Suhu Warna Dan Total Harmonic Distortion (THD) Dalam Rangka Penghematan Energi

open access: yes, 2020
Kebutuhan akan energi saat ini semkain meningkat dengan kegiatan manusia yang banyak menggunakan energi terutama energi listrik. Sehingga perlu tindakan penghematan energi seperti penerangan dengan menggunakan perangkat elektronik yang hemat energi ...
Haryanto, Mulya
core   +1 more source

Verification of the indication correctness of total harmonic distortion meters [PDF]

open access: yes, 2008
W artykule opisano metodę sprawdzania dokładności wskazań mierników zawartości harmonicznych za pomocą sygnału napięciowego zawierającego wzorcową, ściśle określoną wartość współczynnika zawartości harmonicznych (THD).
Wojturski, J.
core  

Pengukuran Total Harmonic Distortion (THD) Tegangan dan Arus di Lingkungan MATLAB

open access: yesJurnal Manajemen Informatika & Teknologi
The daily operational landscape is fundamentally dependent on electrical energy, with the nature of the electrical loads frequently exhibiting varied profiles. A notable aspect of diminished power quality is harmonic distortion, which is characterized by disturbances in the electrical waveforms of both current and voltage.
openaire   +1 more source

Analisis Penggunaan Filter Damped untuk Mereduksi Total Harmonic Distortion (THD) di Rumah Sakit Umum Daerah (RSUD) Klungkung

open access: yesMajalah Ilmiah Teknologi Elektro, 2018
Pengoperasian beban non linier merupakan penyebab timbulnya harmonisa. Tingkat distorsi atau disebut Total Harmonic Distortion (THD) yang tinggi berpotensi menurunkan kualitas energi listrik yang disalurkan. Dalam penelitian ini dilakukan pengukuran THD pada tiap Sub Distribution Panel (SDP) di RSUD Klungkung.
I Kadek Arya Wiguna   +2 more
openaire   +3 more sources

PERANCANGAN CONTROLLER LOGIKA FUZZY SEBAGAI PENGENDALI RANGKAIAN SWITCHING FILTER AKTIF UNTUK MENGELIMINASI HARMONISA PADA TRANSFORMATOR DISTRIBUSI

open access: yesTeknologi dan Kejuruan, 2012
: This research designs controller of logic of fuzzy to control network of switching of at active filter so that can inseminate tension of compensation by precision.
Ahmad Fahmi
doaj   +1 more source

Studi Analisa Pengaruh Total Harmonic Distortion (THD) terhadap Rugi-Rugi, Efisiensi, dan Kapasitas Kerja Transformator pada Penyulang Kerobokan

open access: yesJurnal SPEKTRUM, 2019
Kerobokan feeder supply electrical energy in the area of Kerobokan. This feeder supplies 67 distribution transformers that serve a variety of customers with nonlinier electrical loads. Nonlinier electrical loads cause harmonics which adversely affect customers and power system equipment, especially distribution transformers. In Kerobokan feeder, only 3
I Wayan Sukerayasa   +2 more
openaire   +2 more sources

PERBANDINGAN DOUBLE TUNED FILTER DAN FILTER TIPE C DALAM MEREDUKSI TOTAL HARMONIC DISTORTION (THD) ARUS (STUDI KASUS DI GEDUNG FAKULTAS PENDIDIKAN ILMU PENGETAHUAN SOSIAL UNIVERSITAS PENDIDIKAN INDONESIA) [PDF]

open access: yes, 2015
Harmonisa merupakan suatu fenomena yang timbul akibat pengoperasian beban listrik non linier, yang merupakan sumber terbentuknya gelombang frekuensi tinggi (kelipatan dari frekuensi fundamental, misal: 150Hz, 250Hz, 350Hz, dan seterusnya).
Riantina, Firda
core  

Active Power Filter With Automatic Control Circuit For Neutral Current Harmonic Minimization Technique [QC446.3.H37 I98 2007 f rb]. [PDF]

open access: yes, 2007
Disertasi ini bertujuan untuk membangun penuras kuasa aktif yang cekap dan boleh dipercayai bagi meminimumkan lebihan harmonik arus neutral dan juga masalah harmonik di dalam talian neutral untuk sistem tiga fasa empat dawai. The aim of this thesis
A Bakar, Mohd Izhar
core   +1 more source

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