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INDONESIA
Jurnal Ampere
Published by Universitas PGRI Palembang
ISSN : 24772755     EISSN : 26222981     DOI : http://dx.doi.org/10.31851/ampere
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering
Jurnal Ampere, The aim of this journal is to publish articles to all aspects of the latest outstanding developments in the field of Electrical Engineering. Power Systems ·Generator ·Power Distribution ·Electrical Power Convertion ·Protection Systems ·Electrical Materials ·Newreble Energy Signal, System and Electronics ·Digital Signal Processing ·Robotic Systems ·Micro Electronics ·Embedded Systems Computer system ·Information Technology ·Communication Systems
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 5 Documents
 1 
Search results for , issue "Vol. 5 No. 2 (2020): JURNAL AMPERE" : 5 Documents clear
Modifikasi Model Propagasi Ericsson Jaringan Lte-1800 Mhz Pada Daerah Lepas Pantai Dengan Menggunakan Least Square Method Romadona, Ade Yuda Wahyu; Alfaresi, Bengawan; Ardianto, Feby
Jurnal Ampere Vol. 5 No. 2 (2020): JURNAL AMPERE
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/ampere.v5i1.4734

Abstract

The 4G network has the advantage of accessing data at a higher speed compared to its predecessor, namely 3G. The purpose of this is to see the fluctuation of LTE-1800 MHz signal in the offshore area then modify the Ericsson propagation modeling to get the results with real conditions (real) and accurate. As well as making comparisons of calculation results from existing Ericsson Propagation modeling and comparisons of the results of modifying modeling that can. The method used in this research is four stages: 1). determination of initial data, 2). tools and materials, 3). data grouping and 4). pathloss calculation. The research was conducted in a coastal area off the shore in Panjang district, Bandar Lampung district. Testing the quality of the 4G-LTE network in offshore coastal areas is carried out by measuring several important influencing parameters such as RSRP (Reference Signal Recived Power). All activities are carried out using software devices. Probe by wawe. Analysis of the results before the value 173.5986043 dB obtained from the modeling results from the accurate results of 16.48853263 dB in this calculation using the Ericsson propagation model.
ANALISIS PEMBAGIAN ZONA PROTEKSI PADA JARINGAN DISTRIBUSI 20 kV PENYULANG MERANTI GI BUNGARAN UNTUK MENINGKATKAN PELAYANAN KE KONSUMEN Fitria, Dina; Maulana, Muhammad Arif
Jurnal Ampere Vol. 5 No. 2 (2020): JURNAL AMPERE
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/ampere.v5i2.5056

Abstract

Not all feeders of the 20 kV distribution network distribution of the protection zone work well, one of which is the Meranti feeder. Meranti feeders have a high failure of protection zone coordination. The feeder with the division of 6 protection zones has failed coordination of the protection zone 33 times in 2017. Where protection in zone 4, zone 5 and zone 6 always trips together with protection zone 3. This causes the continuity of service to be disrupted because the area is not disturbed too. go out too. From the analysis, it is found that the failure of coordination of protection relays in zone 4, zone 5 and zone 6 is caused because in zone 3 protection the amount of time setting is the same as zone 4, zone 5 and zone 6, namely 0.05 tms. And the coordination of the protection settings is said to be good if the downstream relay setting is faster than the upstream side, so that in setting the relay on the Meranti feeder it starts from the end protection relay with the fastest time (0.05 tms) and upstream can increase each stage by 0 , 3 secondsABSTRAK Tidak semua penyulang jaringan distribusi 20 kV pembagian zona proteksinya bekerja dengan baik, salah satunya adalah penyulang Meranti. Penyulang Meranti memiliki kegagalan koordinasi zona proteksi yang masih tinggi. Penyulang dengan pembagian 6 zona proteksi  tersebut memiliki kegagalan koordinasi zona proteksi sebanyak 33 kali pada tahun 2017. Dimana proteksi pada zona 4, zona 5 dan zona 6 selalu trip bersamaan dengan proteksi zona 3. Hal ini menyebabkan continuitas pelayanan terganggu karena daerah yang tidak terganggu juga ikut padam. Dari hasil analisis didapatkan bahwa kegagalan koordinasi relay proteksi pada zona 4, zona 5 dan zona 6 disebabkan karena pada proteksi zona 3 besaran setting waktunya sama dengan zona 4, zona 5 dan zona 6 yaitu 0,05 tms. Dan koordinasi setting proteksi dikatakan baik apabila setting relai disisi hilir lebih cepat dari sisi hulu, sehingga dalam melakukan setting relai pada penyulang Meranti dimulai dari relai proteksi paling ujung dengan waktu paling cepat (0,05 tms) dan ke hulu dapat naik setiap tahap sebesar 0,3 detik.
PENGARUH PARALEL PENTANAHAN TRANSFORMATOR DAN PENTANAHAN ARRESTER TERHADAP KINERJA RESISTANSI PENTANAHAN TRANSFORMATOR DISTRIBUSI 250 KVA GARDU BA 005 di PT. PLN (PERSERO) UP3 BENGKULU ULP TELUK SEGARA Rizki, Pebi Muhammad; Putra, Dian Eka
Jurnal Ampere Vol. 5 No. 2 (2020): JURNAL AMPERE
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/ampere.v5i2.5057

Abstract

The grounding system in the distribution transformer substation is very important for the reliability of the supply of electrical energy and protects humans and equipment from overvoltages or leakage currents, besides that the mainly good neutral grounding system will produce the perfect voltage. To protect humans and distribution substation equipment BA 003 Distribution Transformer 250 KVA from touch voltage, especially in the dry season, sunny weather and peak loads using a 250 KVA Transformer requires parallel grounding Arrester and Grounding Body or Transformer shell. From the measurement results, the peak load occurs at night with the loading reaching 54% of the 250 KVA distribution transformer capacity of 194 KVA. For the measurement of the largest resistance on the grounding of the Transformer Arrester of 8.1 Ω, occurs at 14.00 - 15.00 WIB, the greatest resistance on the grounding of the Transformer Body or Shell of 8.3 Ω occurs at 14.00 - 15.00 WIB. From the parallel measurement of the grounding installation of the Transformer Arrester and the Transformer Body or Shell of 7.7 Ω at 14.00 - 15.00 WIB, with sunny weather conditions during the day.ABSTRAK Sistem Pentanahan  pada gardu transformator distrbusi sangatlah penting untuk kehandalan suplai energi listrik serta melindungi manusia dan peralatan dari tegangan lebih atau arus bocor, selain itu sistem pentanhan terutaman pentanhan netral yang baik akan menghasilkan  tegangan yang sempurna. Untuk melindungi manusia serta perangakat gardu distribusi BA 003 Transformator Distribusi 250 KVA dari tegangan sentuh terutama pada musim kemarau, cuaca cerah dan  beban puncak penggunaan Transformator 250 KVA diperlukan paralel grounding Arrester dan Grounding Bodi atau cangkang Transformator. Dari hasil pengukuran  Beban puncak terjadi pada malam hari dengan pembebanan mencapai 54% dari kapasitas transformator distribusi 250 KVA sebesar 194 KVA. Untuk pengukuran Resistansi terbesar  pada pentanahan Arrester Transformator sebesar 8,1 Ω tejadi pada pukul 14.00 – 15.00 Wib, Resistansi terbesar pada pentanahan Bodi atau Cangkang Transformator sebesar 8,3 Ω terjadi pada pukul 14.00 – 15.00 Wib. Dari pengukuran  Paralel Instalasi pentanahan Arrester Transformator dan  Bodi atau Cangkang Transformator sebesar  7,7 Ω pada pukul 14.00 – 15.00 Wib, dengan kondisi cuaca pada siang hari Cerah
EVALUASI KUALITAS PENERANGAN RUANG KULIAH FAKULTAS TEKNIK UNIVERSITAS PGRI PALEMBANG Pratama, Panji Anugrah; Nurdiana, Nita
Jurnal Ampere Vol. 5 No. 2 (2020): JURNAL AMPERE
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/ampere.v5i2.5058

Abstract

Sight is not improved only by the number or quantity of light but also by its quality. The quantity and quality of good lighting was determined by the light reflection level and the lighting ratio in the room. Inappropriate exposure to light standards can be harmful to teachers and students. The college of engineering at PGRI Palembang University is a room with key activities of teaching, studying, reading and writing. By indonesia’s national standards (SNI), the strong minimum illumination expected for college space was 250 lux. In this case the writer did research on lighting in the college of engineering at PGRI Palembang University school of engineering aimed at strong know ledge of light in the PGRI Palembang school of engineering, and to find out the standards or not of lighting in the existing PGRI Palembang school of engineering room 03-6575-2001. From the data of the results of the one study of engineering at PGRI Palembang University, the R.D,Lt.1,R.1 in 90,4658 lux, for measurements at 49,46667 lux in the morning 106,4889 lux.ABSTRAK Penglihatan tidak menjadi lebih baik hanya dari jumlah atau kuantitas cahaya tetapi juga dari kualitasnya. Kuantitas dan kualitas pencahayaan yang baik di tentukan dari tingkat refleksi cahaya dan tingkat rasio pencahayaan pada ruangan. Pemasangan penerangan listrik yang tidak sesuai dengan standar penerangan yang berlaku, akan menimbulkan kerugian bagi dosen dan mahasiswa. Ruang Kuliah di Fakultas Teknik Universitas PGRI Palembang merupakan ruang dengan aktifitas utama mengajar,belajar,baca dan menulis. Menurut Standar Nasional Indonesia (SNI), Kuat penerangan minimum yang diharapkan untuk Ruang Kuliah adalah 250 Lux. Dalam hal ini penulis melakukan penelitian terhadap pencahayaan yang ada pada ruang kuliah Fakultas Teknik Universitas PGRI Palembang yang bertujuan untuk mengetahui kuat penerangan di ruang kuliah Fakultas Teknik PGRI Palembang, dan untuk mengetahui standar atau tidaknya pencahayaan di ruang kuliah Fakultas Teknik PGRI Palembang yang sudah di tetapkan SNI 03-6575-2001. Dari data hasil pengukuran disalah satu ruang kuliah Fakultas Teknik Universitas PGRI Palembang, ruang R.D.Lt.1,R.1 sebesar 90,4658 lux, untuk hasil pengukuran di waktu pagi 49,46667 lux dan di waktu siang  menunjukan 106,4889 lux 
EFISIENSI MOTOR INDUKSI JENIS SHADED POLE SEBAGAI PENGGERAK BLOWER Al amin, M Saleh; Emidiana, Emidiana
Jurnal Ampere Vol. 5 No. 2 (2020): JURNAL AMPERE
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/ampere.v5i2.5069

Abstract

Shaded pole induction motors are most widely used for everyday use, for low-power equipment, such as: fan or blower drive. But in use, the motor quickly decreases its speed and the sound gets louder. This is due to the high value of the losses on the motor, which results in a low value of efficiency, 59.1%. High losses cause the motor to heat up, so that the speed decreases and the sound becomes even more noisy. In the shaded pole induction motor, the iron core is very dominant, it can reach 60% of the total motor material. This will make the magnetic field path long, which can result in lower motor efficiency. To resolve this low efficiency, it is better if the motor coil wire dimensions are enlarged to reduce the motor impedanceAbstrak--Motor induksi jenis kutub terbelah (shaded pole) paling banyak digunakan untuk penggunaan sehari-hari, yaitu untuk kebutuhan dengan daya rendah, seperti : penggerak kipas angin atau blower. Tetapi dalam penggunannya, motor tersebut cepat mengalami penurunan kecepatan dan suaranya semakin keras. Hal ini disebabkan karena tingginya nilai rugi-rugi pada motor tersebut, yang berakibat rendahnya niali efisiennya, yaitu 59,1%. Rugi-rugi yang tinggi menyebabkan motor menjadi panas, sehingga kecepatannya menurun dan suaranya semakin bising. Pada motor induksi jenis shaded pole, inti besinya sangat dominant, dapat mencapai 60% dari total material motor. Hal ini akan membuat jalur lintasan medan magnetnya panjang, yang dapat mengakibatkan rendahnya efisiensi motor. Untuk mengatasi efisiensi yang rendah tersebut, maka sebaiknya dimensi kawat kumparan motor diperbesar untuk menurunkan impedansi motor

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