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JURNAL NASIONAL TEKNIK ELEKTRO
Published by Universitas Andalas
ISSN : 23022949     EISSN : 24077267     DOI : -
Core Subject : Engineering,
Electrical & Electronics Engineering
Jurnal Nasional Teknik Elektro (JNTE) adalah jurnal ilmiah peer-reviewed yang diterbitkan oleh Jurusan Teknik Elektro Universitas Andalas dengan versi cetak (p-ISSN:2302-2949) dan versi elektronik (e-ISSN:2407-7267). JNTE terbit dua kali dalam setahun untuk naskah hasil/bagian penelitian yang berkaitan dengan elektrik, elektronik, telekomunikasi dan informatika.
Arjuna Subject : -
Articles 610 Documents
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Unmanned Aerial Vehicle Robot untuk Pemadam Api dengan Rancangan Alat Pemadam yang Efisien Farouq, Ardiansyah Al; Riansyah, Moch Iskandar; Habibi, Ahmad
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 1: March 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.108 KB) | DOI: 10.25077/jnte.v10n1.839.2021

Abstract

When firefighters extinguish a fire there are certain points that are difficult to pass, while the speed of extinguishing the fire is important. Therefore, the existence of a UAV (Unmanned Aerial Vehicle) that can easily reach the area is very important to help the firefighters. Then the extinguisher used to extinguish must also be specially designed because the ability to carry the robot's UAV (Unmanned Aerial Vehicle) is limited. The flying robot UAV (Unmanned Aerial Vehicle) design used is a multicopter robot. Multicopter which is designed to have 6 propellers. Specially designed extinguisher is also designed to be able to extinguish the fire efficiently with the designed multicopter. The extinguisher is designed in the form of an inverted umbrella with the fabric of the umbrella using a fire extinguisher or a fire-resistant cloth. With this system design, the robot UAV is very efficient to use to extinguish fire in the form of a multicopter. The extinguisher designed has succeeded 100% in extinguishing the fire with an average time of 5 seconds, while when using water the fire is extinguished in an average time of 37.5 seconds. Keywords : UAV, Robot, Fire fighting,Mmulticopter, Extinguisher.AbstrakPada saat petugas pemadam api melakukan pemadaman api  terdapat beberapa titik tertentu yang sulit dilalui, sedangkan kecepatan dalam pemadaman adalah yang penting. Oleh sebab itu adanya UAV (Unmanned Aerial Vehicle) yang dapat dengan mudah menjangkau daerah tersebut sangatlah penting untuk membantu para pemadam. Kemudian alat pemadam yang digunakan untuk memadamkan juga harus dirancang khusus karena kemampuan angkut UAV (Unmanned Aerial Vehicle) robot terbatas. Desain UAV (Unmanned Aerial Vehicle) robot terbang yang digunakan adalah berbentuk multicopter robot. Multicopter yang didesain memiliki 6 baling-baling. Kemudan alat pemadam yang dirancang juga dirancang khusus agar dapat memadamkan api dengan efisien dengan multicopter yang telah didesain. Alat pemadam yang dirancang berupa payung terbalik yang bagian kaiin payung menggunakan kain pemadam atau kain tahan api yang biasa digunakan untuk memadamkan api. Dengan desain sistem tersebut maka UAV robot sangat efisien digunakan untuk memadamkan api dalam bentuk multicopter. Alat pemadam yang dirancang telah berhasil 100% memadamkan api dengan rata-rata waktu 5 detik, sedangkan bila menggunakan air maka api padam dalam waktu rata-rata 37.5 detik.Kata Kunci : UAV, Robot, Pemadam kebakaran, Multicopter, Alat pemadam.
Peningkatan Daya Output Photovoltaik Dengan Penambahan Lapisan Kaca Film Pada Permukaannya Pawawoi, Andi; Pranata, Vegi Apria
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 3: November 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1297.161 KB) | DOI: 10.25077/jnte.v9n3.712.2020

Abstract

One of the parameters that affect photovoltaic output is temperature. The optimum working temperature of photovoltaic is in the range of 25oC. Any increase in temperature will cause a decrease in photovoltaic output. Window film is one of the most widely used materials to block heat while still being able to pass sunlight. The main characteristic of window film that can block heat is known as the IRR (Infra Red Rejected) and the ability to pass light is known as the VLT (Visible Light Transmittance). The greater the VLT, the smaller its ability to block heat, and vice versa. In its application to photovoltaics, it is necessary to find and test suitable window film for increasing the photovoltaic output power. In this paper, the results of testing of 3 types of window films with different VLT, the highest, medium and low VLT films chosen according to the market, namely VLT: 90%, 72% and 60%. The third window film is applied by sticking it to the surface of the photovoltaic. The test is carried out by comparing it with standard photovoltaic (without window film) on sunny weather from 10:00 to 14:00 each for 3 days. The results showed that photovoltaic film coated with 90% VLT was able to increase the average output power by +49.36%, while  those coated with 72% and 60% VLT had decreased power respectively -6.53% and -26.20 % Keywords : Photovoltaic power, Window film, Heat reductionAbstrakSalah satu parameter yang mempengaruhi output photovoltaik adalah temperatur. Temperatur kerja optimum photovoltaik berada pada kisaran 25oC. Setiap kenaikan temperatur akan menyebabkan penurunan output photovoltaik. Kaca film adalah salah satu material yang banyak digunakan untuk memblok panas namun tetap mampu melewatkan cahaya matahari. Karakteristik utama kaca film yang dapat memblok panas dikenal dengan istilah IRR (Infra Red Rejected) dan kemampuan melewatkan cahaya dikenal dengan istilah VLT (Visible Light Transmittance). Semakin besar VLT maka semkin kecil kemampuannya memblok panas, demikian juga sebaliknya. Dalam aplikasinya pada photovoltaik, perlu dicari dan diuji  kaca film yang sesuai untuk peningkatan daya output photovoltaik. Dalam tulisan ini diuraikan hasil pengujian 3 jenis kaca film dengan VLT yang berbeda, dipilih kaca film dengan VLT tertinggi, sedang dan rendah sesuai yang ada di pasaran, yaitu VLT: 90%, 72% dan 60%. Ketiga kaca film tersebut diaplikasikan dengan cara ditempelkan pada permukaan photovoltaik. Pengujian dilakukan dengan membandingkannya dengan photovoltaik standar (tanpa kaca film) pada cuara cerah dari jam 10.00 hingga jam 14.00 masing-masing selam 3 hari. Hasilnya menunjukkan photovoltaik dilapisi kaca film dengan VLT 90% mampu meningkatkan daya output rata-rata 49,36%, sementara yang dilapisi kaca film dengan VLT 72% dan 60 % mengalami penurunan daya berturut-turut  -6,53 % dan -26,20% Kata Kunci : Daya Photovoltaik, Kaca film, Reduksi panas
Utilizing Unified Power Flow Controller for Voltage Stability Improvement of the Electric Power Transmission System of Ghana Asihene, William Duodu; Effah, Francis Boafo; Normanyo, Erwin
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 1: March 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (843.958 KB) | DOI: 10.25077/jnte.v9n1.760.2020

Abstract

Interconnecting power transmission systems provide reliability of electric power supply. The security of the system is however questioned when a disturbance in any part of the interconnected system causes instability in the entire network. Unified Power Flow Controller (UPFC), which is a member of the flexible alternating current transmission system (FACTS) family, has the capability of controlling active and reactive power flow in a transmission line thereby improving the voltage stability of the system especially at the 500 kV configuration level. The performance of a 161-kV UPFC modelled in SimPowerSystems is tested on Ghana’s power transmission network.  The optimal placement of the UPFC is done using fast voltage stability index (FVSI) and maximum loadability assessment (MLA). The results show that the device improved the connecting bus voltage from 0.88 p.u. to 0.98 p.u. Active power loss in the network was also reduced from 13.40 MW to 10.39 MW when the UPFC was in circuit.Keywords: Ghana, Stability, Transmission system and Unified Power Flow Controller (UPFC)
Pengembangan Electronic Load Controller untuk Self-Excited Induction Generator Berbasis Penyearah Tiga Fase Menggunakan Raspberry Pi Hakim, Ihsan Nur; Amdrian, Aan Listanto; Pradana, Adlan Bagus; Wardana, Awang Noor Indra
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 3: November 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1862.104 KB) | DOI: 10.25077/jnte.v9n3.802.2020

Abstract

A self-excited induction generator (SEIG) could provide electricity for isolated areas appropriately. An electronic load controller (ELC) with Raspberry Pi is designed to overcome the voltage and frequency changing of SEIG caused by load changing, while ab le to support distributed system trend with Framework for Distributed Industrial Automation and Control (4DIAC). The ELC design is based on the characteristics of SEIG and Indonesian electricity system standards. The design is then implemented, and the characteristics are identified. The output of SEIG is regulated at frequency of 50 Hz and terminal voltage of 294 V. A voltage sensor is designed with a transformer, filters, rectifier, and ADC. The actuator consisted of a three-phase rectifier, dump load, optocoupler driver, and IGBT. A PI-controller based on Python is applied in Raspberry Pi Zero with experimentally tuned Kp and Ki values both of 5.0. The output changing of SEIG caused by load changing could be regulated within the Indonesian electricity frequency standard in its steady state. The maximum voltage deviation from the nominal value is -12.24%, while the maximum frequency deviation is +3.2%, and the longest settling time is 832 ms.Keywords : induction generator, electronic load controller and Raspberry Pi.
Komparasi dan Optimasi Model Propagasi Pada Sistem Komunikasi Seluler Di Kota Palembang Fadhli, Mohammad; Soim, Sopian
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (364.641 KB) | DOI: 10.25077/jnte.v9n2.773.2020

Abstract

Various propagation models can be used to predict path loss. Each propagation model is classified according to its environment categories. These environment categories are purely subjective, therefore to get accurate predictions, proper environment category selection is needed. In this paper, four propagation models are compared with RSL measurements at five sites in Palembang City. The models being compared are Okumura Hata, ECC-33, Ericsson, and SUI. Based on comparison using RMSE parameters, large urban is the appropriate environment category for Palembang City in the Okumura Hata model. For ECC-33, the appropriate environment category is medium urban. In the Ericsson model, the appropriate category is suburban, and terrain type A for SUI model. From the comparison of four models based on RMSE and standard deviations, it is known that for measurement results of five sites in Palembang City, the ECC-33 model has high accuracy with RMSE of 3,28 dB and standard deviation of 2,74 dB. After optimization, the Okumura Hata model provides an RMSE of 1,75 dB and a standard deviation of 0,76 dB. It is recommended to use the Medium Urban ECC-33 model or the optimized Large Urban Okumura Hata model to predict path loss in Palembang City.Keywords : Propagation Models, Optimization, Environment Categories, Okumura Hata, ECC-33, Ericsson, SUI.' AbstrakTerdapat berbagai macam model propagasi yang dapat digunakan untuk memprediksi path loss. Setiap model propagasi diklasifikasikan berdasarkan kategori lingkungannya. Pembagian kategori lingkungan ini bersifat subjektif, sehingga untuk mendapatkan prediksi yang akurat diperlukan pemilihan kategori lingkungan yang tepat. Penelitian ini membandingkan empat jenis model propagasi dengan hasil pengukuran RSL pada lima site di Kota Palembang. Model yang dibandingkan adalah Okumura Hata, ECC-33, Ericsson dan SUI. Berdasarkan komparasi menggunakan parameter RMSE, Kota Palembang menurut model Okumura Hata termasuk dalam kategori large urban. Sedangkan pada model ECC-33 termasuk kategori medium urban. Pada model Ericsson termasuk kategori suburban, dan pada model SUI termasuk dalam tipe terrain A. Dari perbandingan keempat model berdasarkan RMSE dan standar deviasi, diketahui bahwa pada hasil pengukuran lima site di Kota Palembang, model ECC-33 memiliki akurasi yang tinggi dengan RMSE 3,28 dB dan standar deviasi 2,74 dB. Setelah dioptimasi, model Okumura Hata juga memberikan akurasi prediksi yang tinggi, dengan RMSE 1,75 dB dan standar deviasi 0,76 dB. Sehingga disarankan untuk menggunakan model ECC-33 medium urban atau model Okumura Hata large urban yang telah dioptimasi untuk mempredikasi path loss di Kota Palembang.Kata Kunci : Model Propagasi, Optimasi, Kategori Lingkungan, Okumura Hata, ECC-33, Ericsson, SUI
Pengaruh Keberadaan Partikel Asing Terhadap Karakteristik Medan Listrik Pada GIS Equilateral Tiga Fasa Pratama, Rizki Wahyu; Andre, Hanalde; Khayam, Umar
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 1: March 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7057.822 KB) | DOI: 10.25077/jnte.v10n1.850.2021

Abstract

This paper analyzes the effect of the presence of foreign particles on an equilateral arrangement of 3 phase gas insulated switchgear (GIS) insulation equipment. In this calculation, the electric field characteristics will be analyzed in 3-phase equilateral GIS by varying the location of the particles in the GIS tank. Particles are modeled to have a length of 5 mm and a thickness of 0.5 mm located in a 3 phase GIS equilateral arrangement with a tank diameter of 150 mm and a conductor diameter of 25 mm. The electric field calculations are reviewed at several points in the 3-phase equilateral GIS tank. The simulation and calculation of the electric field were calculated with FEM method software. The results of the calculations show that there are differences in the characteristics of the electric field between normal GIS and GIS where foreign particles are present. The difference in these characteristics can be seen in the magnitude of the electric field, and the ratio of eccentricity from some point of view. Keywords : gas insulated switchgear, equilateral, foreign particles, electric field, eccentricity ratioAbstrakPaper ini menganalisa tentang pengaruh keberadaan partikel asing pada peralatan hubung isolasi gas/ gas insulated switchgear (GIS) 3 fasa susunan equilateral. Pada perhitungan ini, akan dianalisa karakteristik medan listrik pada GIS equilateral 3 fasa dengan memvariasikan letak partikel dalam tangki GIS. Partikel dimodelkan memiliki panjang 5 mm dan ketipisan 0.5 mm terletak di dalam GIS 3 fasa susunan equilateral dengan diameter tangki 150 mm dan diameter konduktor 25 mm. Perhitungan medan listrik ditinjau pada beberapa titik dalam tangki GIS equilateral 3 fasa. Simulasi dan perhitungan medan listrik dilakukan dengan perangkat lunak menggunakan metode FEM. Hasil dari perhitungan menunjukkan adanya perbedaaan karakteristik medan listrik antara GIS normal dengan GIS yang terdapat partikel asing. Perbedaan karakteristik ini dapat dilihat pada besar medan listrik, dan rasio eksentrisitas pada beberapa titik tinjau keberadaan partikel. Kata Kunci : gas insulated switchgear,  equilateral, partikel asing, medan listrik, rasio eksentrisitas
Perancangan Sensor Gerak Benda pada Benturan Berlebihan untuk Pengujian Pre-Straining Spring Momentum Exchange Impact Dumper (PSMEID) Dengan Metoda Prediksi Waktu Benturan (Preview) Darmawan, Darmawan; Lovelyson, Lovelyson; Pharmayeni, Pharmayeni
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 3: November 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.031 KB) | DOI: 10.25077/jnte.v9n3.713.2020

Abstract

Vibration that occurs due to excessive impact can damage the construction of an object. Excessive Impact which usually occurs at certain times such as aircraft landing gear collisions with runways that can be fatal if the vibrations produced cannot be controlled properly. One method to reduce vibration caused by excessive impact is called PSMEID (Pre-Straining Momentum Exchange Impact Dumper), which in this case utilizes momentum from a period placed in the main period in which the direction of the style is opposite to the force produced by the collision. In previous studies the PSMEID system was activated shortly after the collision, due to the absence of a sensor mechanism to detect the vibrations and movements of objects that occur. In this case, this research tries to design a sensor system that can detect the movement of objects before an Excessive impact occurs. By knowing the position and condition of the object just before the collision, it can be predicted the time of the collision so that the time of mass release with a spring push that has been stretched (pre-straining) in the opposite direction from the direction of collision gives more optimal results to reduce vibrations from the collision. This study designed various of sensors system consisting of vibration sensors, acceleration sensors and proximity sensors that work in such a way that the PSMEID activation time is close to / equal to the time of the initial collision so that momentum and acceleration can be reduced. In the initial testing this sensor system only involves vibration sensor, where PSMEID can be activated 32 millisecond.Keywords : Excessive Impact, PSMEIDAbstrakGetaran yang terjadi diakibatkan oleh benturan  yang berlebihan (Excessive Impact) dapat merusak kontruksi sebuah benda. Excessive Impact yang biasanya terjadi pada waktu tertentu saja seperti benturan roda pendaratan pesawat dengan landasan pacu yang dapat berakibat fatal jika getaran yang dihasilkan tidak dapat dikontrol dengan baik. Salah satu metoda untuk mereduksi getaran yang diakibatkan dari (Excessive Impact) disebut sebagai PSMEID (Pre-Straining Momentum Exchange Impact Dumper), dimana dalam hal ini memanfaat momentum dari sebuah masa yang ditempatkan pada masa utama yang arah gayanya berlawanan dengan gaya yang dihasilkan oleh benturan. Pada penelitian sebelumnya system PSMEID diaktifkan sesaat setelah terjadinya benturan, karena tidak adanya mekanisme sensor untuk mendeteksi vibbrasi dan pergerakan benda yang terjadi. Maka dalam hal ini, penelitian ini mencoba merancang sistem sensor yang dapat mendeteksi pergerakan benda sebelum terjadinyanya Excessive impact. Dengan mengetahui posisi dan kondisi benda sesaat sebelum terjadi benturan maka dapat diprediksi waktu benturan sehingga waktu pelepasan massa dengan dorongan pegas yang sudah diregangkan (pre-straining) dengan arah yang berlawanan dari arah benturan memberikan hasil yang lebih optimal untuk mereduksi getaran dari benturan yang terjadi. Penelitian ini merancang system multinsensor yang terdiri dari sensor vibrasi, sensor percepatan dan sensor jarak yang bekerja sedekian rupa sehingga waktu aktifasi PSMEID mendekati/sama dengan waktu terjadinya benturan awal sehingga momentum dan percepatan dapat direduksi. Pada pengujian awal system sensor ini hanya melibatkan sensor vibrasi saja, dimana PSMEID mampu diaktifkan 32 ms.Kata Kunci : Excessive Impact, PSMEID
Implementasi Sistem Cerdas Pada Gedung Workshop Otomasi Industri Balai Latihan Kerja Banda Aceh sebagai Solusi dalam Penghematan Energi Listrik Yusuf, Muhammad; Sara, Ira Devi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (803.883 KB) | DOI: 10.25077/jnte.v9n2.703.2020

Abstract

The increase in electricity consumption does not only occur in the industrial and household sectors but also in the government office sector. The government through the Minister of Energy and Mineral Resources regulation No. 13 of 2012 demands savings in electricity usage. Balai Latihan Kerja Industri Banda Aceh is a building managed by considering the efficiency of electricity. In this research, a smart system that can control the use of equipment is designed to be able to streamline usage costs. System was controlled using a Programmable Logic Control (PLC). Input for the system are a PIR sensor, a smoke detector, a water level sensor, a photocell sensor, switch, emergency button, door lock, and window sensor. The controlled equipment consists of four air conditioners, fifteen lights, a water pump, main door lock, alarm, and telephone. The system is controlled by on/off method, PLC analyzes the input signal and then adjusts the output state according to the conditions specified based on the control program. The results shows that this system succeeded in controlling equipment efficiently. Management can reduce the electricity accounts by Rp. 11.398.962,- in a year. The payback period is less seven months. The implementation of a smart system in Balai Latihan Kerja Industri Banda Aceh for electricity efficiency can support government programs for energy sustainability.Keywords : Electric power, smart systems, PLC,efficiency AbstrakPeningkatan konsumsi energi listrik bukan hanya terjadi di sektor industri dan rumah tangga tetapi juga terjadi di sektor perkantoran pemerintah. Pemerintah melalui peraturan Menteri ESDM No. 13 tahun 2012 menuntut penghematan pemakaian energi listrik. Balai Latihan Kerja Industri Banda Aceh merupakan salah satu gedung yang memperhatikan penghematan energi listrik tersebut. Pada penelitian ini dirancang sebuah sistem cerdas yang dapat mengendalikan penggunaan peralatan listrik untuk dapat mengefesienkan biaya penggunaan. Pengendalian dilakukan menggunakan programmable logic controller (PLC). Masukan dari sistem adalah sensor PIR, sensor asap, sensor ketinggian air, sensor fotocell, saklar, tombol darurat, tombol buka pintu utama dan sensor jendela. Peralatan yang dikendalikan terdiri dari empat pendingin ruangan, lima belas lampu, satu pompa air, kunci pintu utama, alarm dan telepon. Peralatan dikendalikan dengan metode on/off dimana PLC menganalisa sinyal input kemudian mengatur keadaan output sesuai dengan kondisi yang telah ditentukan berdasarkan kontrol program sistem cerdas yang telah deprogram pada PLC. Sistem telah berhasil mengendalikan peralatan secara efisien sehingga diperoleh penghematan penggunaan energy listrik. Balai Latihan Kerja Banda Aceh dapat menekan penghematan pembayaran rekening pemakaian energi listrik sebesar Rp. 11.398.962,-. Berdasarkan biaya yang dikeluarkan untuk membuat sistem dan efisiensi yang dihasilkan, maka modal dapat dikembalikan dalam rentang waktu kurang dari tujuh bulan. Dengan diimplementasikan sistem cerdas penghematan pemakaian energi listrik yang dicanangkan dalam peraturan pemerintah dapat direalisasikan.Kata Kunci : Sistem cerdas, PLC dan Penghematan
Harmonics of CF and LED lamps - Maximum Penetration Perspective on Power Quality in Distribution Systems Effah, Francis Boafo; Gasu, Philip; Okyere, Philip; Acakpovi, Amevi
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 3: November 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v9n3.795.2020

Abstract

Global energy saving efforts have led to replacement of incandescent lamps with energy-efficient ones like light-emitting diode (LED) and compact fluorescent lamps (CFLs). These lamps, being non-linear loads, have the potential of injecting harmonics into distribution networks. In this paper, harmonics injection of common CFL and LED lamps at a facility point of common coupling is investigated. To gain insight into large scale penetration effects on power quality, field measurement results of popular lamps used in Ghana were replicated in MATLAB/Simulink through simulation. The field results showed that LED lamps exhibit more harmonics compared to CFL lamps. Maximum possible loading on a 100-kVA, 11kV/0.433kV distribution transformer was found to be 24.02% for CFL, 27.14% for LED, and 40.91% for a mixture of the two lamps, respectively, in order not to violate IEEE 519-2014 standard. The influence of other common loads such as ceiling fans on the lamps’ harmonics were assessed in the field measurement. The use of ceiling fans with the lamps in the facility reduced the harmonics and improved the power factor of the facility. Since the lamps exist in residential and commercial facilities with other loads, more penetration of energy-saving lamps in the distribution system will have little influence on power quality.Keywords: Compact fluorescent lamps, light emitting diodes, maximum power loading, total harmonic distortion, point of common coupling
Peningkatan Faktor Penuaan Arester Tanpa Sela Isolasi Polymer Akibat Kontaminan Kalsium Karbonat Novizon, Novizon; Nofriadi, Nofriadi; Yustasia, Dano
JURNAL NASIONAL TEKNIK ELEKTRO Vol 9, No 2: July 2020
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.233 KB) | DOI: 10.25077/jnte.v9n2.733.2020

Abstract

Gapless arester leakage current can be used as an indicator to determine the aging level of the arester. Leakage current is influenced by contaminants present in the arester insulation. This paper analyzes the effect of contamination on arester leakage currents as an indicator of arester aging. Contaminants used are calcium carbonate plus kaolin dissolved into water, to determine the level of calcium carbonate contaminants, the ESDD (Equivalent Salt Deposit Density) method is used. Contaminated aresters are measured as leakage currents flowing to the block elements and to the arester insulation. Based on experiments that have been carried out, the increase in leakage current of the arester on the block element that increases the leakage current to the level of light, medium and heavy contamination rises by an average of 17.5% for the voltage of all test voltages. While at low and moderate contamination the leakage current that occurs in the polymer arester insulation does not significantly change, the leakage current generated is linear with the level of contaminants in the arester body. It can clearly be concluded that the effect of contamination is very significant in changes in leakage currents.Keywords : Gapless arester, Leakage current, Kontamination, Aging, AbstrakArus bocor arester tanpa sela dapat digunakan sebagai indikator untuk menentukan tingkat penuaan arester. Arus bocor dipengaruhi oleh kontaminan yang ada pada isolasi arester. Paper ini menganalisa pengaruh kontaminasi terhadap arus bocor arester sebagi indikator penuaan arester. Kontaminan yang digunakan adalah kalsium karbonat di tambah kaolin yang di larutkan kedalam air, untuk menentukan tingkat kontaminan kalsium karbonat maka digunakan metode ESDD (Equivalent Salt Deposit Density). Arester yang sudah berkontaminasi diukur arus bocor yang mengalir pada elemen blok dan pada isolasi arester. Berdasarkan percobaan yang telah dilakukan, kenaikan arus bocor arester pada elemen blok bahwa kenaikan arus bocor untuk tingkat kontaminasi ringan,sedang dan berat naik rata-rata 17.5 % untuk semua tegangan uji. Sementara pada kontaminasi rendah dan sedang arus bocor yang terjadi pada isolasi polimer arester tidak. singnifikan perubahannya,Arus bocor yang dihasilkan linier dengan tingkat kontaminan pada badan arester. Secara jelas dapat disimpulkan bahwa pengaruh kontaminasi sangat signifikan dalam perubahan arus bocor.Kata Kunci : Arester tanpa sela, Arus bocor, Kontaminasi, Penuaan,

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