Aris Kiswanto
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EFEKTIFITAS PEMANFAATAN PASIR PANTAI KUKUP DAN SILANE SEBAGAI FILLER BAHAN ISOLASI RESIN EPOKSI UNTUK ISOLATOR LISTRIK Prasetyo, Moh Toni; Kiswanto, Aris
MEDIA ELEKTRIKA Vol 8, No 1 (2015): MEDIA ELEKTRIKA
Publisher : Program Studi Teknik Elektro Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.386 KB) | DOI: 10.26714/me.8.1.2015.%p

Abstract

Insulation materials that commonly used in air insulation, which, is operated at high voltage, are the porcelain, glass, and polymer materials. One of the insulating polymer materials that are used is epoxy resin because it has several advantages compared to that. However, this insulation material has a degradation of the surface due to environmental and cause insulation coated with dirt and chemicals in the long time. Material that was used in this research was epoxy resin polymer isolation using of comparison values (base material diglycidyl ether of bisphenol-A: hardener material metaphenylene diamine) were 1:1, with the increase of silane and high calcium coastal sand as filler by the value of 10%, 20%, 30%, 40%, and 50%.Research was done in laboratory according to standard IEC 587: 1984. In this study, the effect of variation in stoichiometry to the hydrophobic contact angle value, leakage current waveforms, and surface degradation caused by erosion and tracking processes and tracking time were analyzed.From the results of the research, it was obtained that the epoxy resin that was used in this research are categorized as hydrofobik and partially wetted. The increase concentration of silane dan Kukup coastal sand as filler caused the increase in contact angle which meant the increase in surface insulation resistance, so that leakage currents flew on the surface not easily and slow down the aging or the degradation decreasing on the surface of insulating material. Concentration value of filler that had the optimal performance of the tracking process and erosion was 40%.Keywords : angle of contact, epoxy resin, hidropobik, isolator, leaky current, materials filler
RANCANG BANGUN ALAT PENGHITUNG PENGUNJUNG PERPUSTAKAAN DENGAN MICROCONTROLER AT89S51 DENGAN PENAMPIL LCD Paring, -; Supradono, Bambang; Kiswanto, Aris
MEDIA ELEKTRIKA Vol 4, No 1 (2011): MEDIA ELEKTRIKA
Publisher : Program Studi Teknik Elektro Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1333.747 KB) | DOI: 10.26714/me.4.1.2011.%p

Abstract

Library is the heart of campus life and the entry gate of science. The number of visitors to the library is an indicator of the quality of the academic atmosphere in the university. Visitors during this data collection is done manually have limitations in terms of data accuracy and data processing electronics to follow up.Data has advantages in data accuracy and process. In this research aims to design tool Counters Visitors to the library with AT89S51 Microcontroller with LCD Viewer. This tool will automatically calculate how many students get in the library. So by knowing the number of student activities at the college library will be easy to determine the next steps to improve the quality of services at the library.Keywords : Libraries, electronic data, microcontroller AT89S51
PENGARUH OVER EKSITASI PADA TRANSFORMATOR DISTRIBUSI DI GARDU INDUK SERPONG TERHADAP PENUAAN ISOLASI KERTAS DITINJAU DARI SISI TERMAL Hakim, Muhammad Luqmanul; Kiswanto, Aris; Prasetyo, M. Tony
MEDIA ELEKTRIKA Vol 5, No 1 (2012): MEDIA ELEKTRIKA
Publisher : Program Studi Teknik Elektro Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (10440.32 KB) | DOI: 10.26714/me.5.1.2012.%p

Abstract

Distribution of electricity to consumers through some process that begins from power plants to substations supplied (sub-station), then lowered into the substation -a low-voltage distribution substations. The distance is too far between the point on the voltage distribution in particular between the IBT to the parent distribution substation secondary voltage drop triggers, It is as well as on the distance between new or IBT IBT cilegon Gandul to trigger serpong substation secondary voltage drop at substation serpong.To stabilize the voltage of the secondary to the primary voltage on distribution transformer tap changer operation. Problems arise when the tap changer to operate too much will lead to the over-excitation of the distribution transformer. The side effects of the over-excitation also trigger an increase in temperature of the thermal transformer, so the effect on the components within it, is no exception to the isolation of paper inthe process of thermal temperature rise is accelerating aging insulating paper it self. The exixtence of aging insulating paper must be accompanied by the estimated number of clear that the replacement of aging insulating paper on time, so it requires the calculation of accurate data on the thermal temperature kenaiakan to aging transformer paper insulation.Keywords: electricity distribution process, reduced secondary voltage, over-excitation, aging insulating paper, the estimated value.
ALAT UKUR TINGGI DAN MASSA BADAN OTOMATIS BERBASIS MIKROKONTROLLER ATMEGA 8535 Kahfi, Shokhibul; Solichan, Achmad; Kiswanto, Aris
MEDIA ELEKTRIKA Vol 8, No 2 (2015): MEDIA ELEKTRIKA
Publisher : Program Studi Teknik Elektro Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (544.051 KB) | DOI: 10.26714/me.8.2.2015.%p

Abstract

ABSTRACT This combination; Automatic mass and high measurement device based on microcontroller ATMega 8535, is a combination which can measure for high and mass digitally. This combination consist of some blocks, power supply 5V and there are 2 censors; ultrasonic and optocoupler which is an input of this device, and microcontroller ATMega 8535 is as a program controller and LCD is as presenter. Censor ultrasonic HSCR-04 will detect things surrounding censor, censor radiator will send ultrasonic phase. If ultrasonic phase bounches back to the receiver, it means there is an object surroundings censor and optocoupler censor will count the hole in analog weights. Then, the second result is sent to microcontroller to be calculated to LCD to be shown. Keywords : Keywords: ultrasonic censor, optocoupler, Microcontroller ATMega 8535, LCD
REKAYASA PROTOTIPE ROBOT PEMADAM API DAN PELACAK JEJAK BERBASIS MIKROKONTROLER ATMEGA8535 Abdurohman, Muhammad; Kiswanto, Aris; Toni, Moh
MEDIA ELEKTRIKA Vol 9, No 2 (2016): MEDIA ELEKTRIKA
Publisher : Program Studi Teknik Elektro Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.769 KB) | DOI: 10.26714/me.9.2.2016.%p

Abstract

Rancang bangun robot pemadam api yang juga dapat mengikuti jejak menggunakan micro chip ATMega8535, dengan spesifikasi robot menggunakan foto dioda delapan buah sebagai sensorpelacak jejak sehingga robot lebih baik untuk kemungkinan keluar dari garis yang telah ditentukan, sensor jarak sebagai alat navigasi robot agar tidak menabrak, sensor api untukmendeksi api yang memungkinkan sensor ini bisa diganti-ganti sesuai dengan kebutuhan bisa dengan UVtron, LM35, LDR, atau foto dioda. Sensor mendeteksi adanya sumber api danmengaktifkan alat pemadam, penulis memasang fan sebagai pemadam apinya.Dilengkapi dengan LCD untuk memonitor progress kerja robot yang sekaligus untuk mengubah program robot secara langsung dengan bantuan empat tombol yang difungsikan sebagai menuatau cancel, ok atau start, up dan down. Program yang dapat dirubah melalui robot adalah kecepatan, pengambilan data sensor terhadap dasar putih sebagai kalibrasi, mencoba fungsi kerja robot dengan demo (maju, mundur, belok kanan, belok kiri). Juga dapat merubah program robot sesuai dengan program pilihan yang sebelumnya telah dimasukkan dalam menu utama robot tanpa menggunakan PC..Kata Kunci: robot, pemadam api, pelacak jejak, ATMega8535
SISTEM INFORMASI AKADEMIK BASED E-LEARNING METODE PEMBELAJARAN INTERAKTIF DI MUHAMMADIYAH BOARDING SCHOOL UNGARAN Setiono, Agus; Prasetyo, Moh Toni; Kiswanto, Aris
MEDIA ELEKTRIKA Vol 9, No 1 (2016): MEDIA ELEKTRIKA
Publisher : Program Studi Teknik Elektro Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (364.155 KB) | DOI: 10.26714/me.9.1.2016.%p

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Sistem Informasi Akademik Muhammadiyah Boarding School dirancang dan dapat diakses melalui internet. Dengan website tersebut segala informasi tentang akademik dapat diketahui,dapat dilihat mulai dari siswa , data akademik, guru, semua kawasan civitas akademika dan oranng tua siswa. Muhammadiyah Boarding School merupakan Sekolah setingkat Sekolah Menengah Pertama, yang direncanakan akan segera menerapakan sistem akademik berbasis web yang dinamis sehingga dapat melakukan pengolahan data sewaktu-waktu oleh administrator maupun pengguna yang lain. Dalam Sistem Akademik tersebut menerapkan manajemen basis datayang optimal. Dimana manajemen basis data ini menggunakan MySQL sebagi DBMS-nya dan Apache sebagai web server serta PHP sebagai bahasa pemrogramannya kemudian menggunakansoftware tambahan Dreamweaver dan Notepad ++ GNU. Website yang akan menampilkan segala informasi tentang Akademik Muhammadiyah Boarding School sehingga informasi menjadi update.Termasuk informasi guru, siswa, metode pembelajaran e-learning dan hasil nilai masing-masing siswa dengan menggunakan sistem login dan passwordKata Kunci: e-learning, manajemen basis data, Sistem Informasi Akademik, website, web server
DESAIN INSTALASI LAMPU NAVIGASI PADA KAPAL PERINTIS 2000 GT Setiawan, Andi; Prasetyo, Moh Toni; Kiswanto, Aris
MEDIA ELEKTRIKA Vol 10, No 1 (2017): MEDIA ELEKTRIKA
Publisher : Program Studi Teknik Elektro Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.04 KB) | DOI: 10.26714/me.10.1.2017.%p

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Navigasi merupakan bagian dari aktivitas kapal yang berlayar dari satu tempat ke tempat lain dengan lancar, aman, dan efisien. Pengetahuan tentang alat navigasi sangat penting untuk membantu seorang pelaut di kapalnya berlayar. Lampu navigasi atau lampu navigasi juga merupakan alat navigasi yang biasanya digunakan di kapal untuk menentukan arah, posisi, dan jenis kapal pada malam hari. Salah satu kecelakaan laut terbesar menyebabkan faktor-faktor yang terjadi di Indonesia, mereka bertanggung jawab untuk melaksanakan tugas navigasi di kapal, oleh karena itu dalam menjalankan tugas kapten kapal harus mengerti dan menerapkannya secara keseluruhan, sekaligus menjaga agar tetap Petugas navigasi saat melakukan tugas penjagaan di laut Lampu navigasi kapal sesuai peraturan yang ada diperoleh jumlah lampu navigasi sebagai lampu penerangan 6 buah lampu navigasi antara lampu jangkar antara lampu jangkar, lampu di bagian atas tiang, lampu samping kiri, lampu samping kanan, lampu navigasi, danpenerangan tanpa perintah.Kata Kunci: Desain Navigasi, Kapal Perintis, standar COLREGS
PEMBUATAN ALAT UJI KEKASARAN PERMUKAAN (SURFACE ROUGHNESS TEST) JP., Rubijanto; Kiswanto, Aris; Subri, Moh.
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2004: PROSIDING SEMINAR NASIONAL HASIL-HASIL PENELITIAN
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5039.503 KB)

Abstract

Gesekan antara dua atau lebih elemen mesin akan membawa konsekuensi keausan pada elemen-elemen yang saling berkontak tersebut. Dengan kemajuan teknologi manufaktur. kualitas presisi suatu elemen mesin semakin meningkat. Dalam presisi tinggi, kekasaran permukaan sangat berpengaruh dalam kinerja elemen mesin tersebut.Dengan nilai kekasaran permukaan yang tepat, koefisien gesekan permukaan dari suatu elemen mesin akan mudah ditentukan dan akan menjadi suatu data yang penting dalam suatu perancangan.
RANCANG BANGUN ALAT PEMANAS AIR DAN KONSERVASI ENERGI PADA MESIN PENDINGIN AC 1PK Sumarta, Gilang Akbar; Supradono, Bambang; Kiswanto, Aris
MEDIA ELEKTRIKA Vol 5, No 1 (2012): MEDIA ELEKTRIKA
Publisher : Program Studi Teknik Elektro Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5900.341 KB) | DOI: 10.26714/me.5.1.2012.%p

Abstract

Presidential Instruction recently about saving and energt efficiency, it is necessary that efforts should be made to support the program. In energy savings in the household sector can be done in various wavs from the smallest thing turning off lights that are not necessary to the utilization of waste heatfrom air conditioning to hot water purposes. Alternative technologies, the heat energy generated by the air conditioning unit is the potential energy that can be utilized to get hot water for free. Given theclimate in Indonesia is quite hot, many hospitals, hotels, residential upper middle or apartment is equipped with air-conditioning and heat generated in the cooling system is disposed into the environment. Infact. the heat energy can be used for heating water can be usedf or water bath or otherpurposes. It is necessary to develop a means of combined cooling and heating water. These devices are expected simultaneously to increase comfort and save energy.Keywords: Conservation of energy in refrigeration I pk
Peningkatan Mesin Cetak dan Kekuatan Mekanik Batu Bata Press Menggunakan Mesin Cetak Kapasitas 1000 Buah/Jam pada Usaha Keluarga di Desa Kalipucang Kulon Solechan, Solechan; Kiswanto, Aris
Jurnal Surya Masyarakat Vol 1, No 1 (2018): November 2018
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26714/jsm.1.1.2018.40-46

Abstract

Kota Jepara salah satu kota dimana terdapat peluang usaha untuk memenuhi kebutuhan batubata. Sentra batu bata salah satunya berada di desa Kalipucang Kulon kecamatan Welahan. Dari kekuatan mekanik batu bata masih di bawah standar, densitas rendah, porositas tinggi dan warna merah. Batu bata mengandung pasir besi dan jenis tanah lempung merah. Usaha pembuatan batu bata di desa Kalipucang Kulon sebanyak 54 buahyang terdaftar di kantor Kelurahan tahun 2015. Banyak terjadi permasalahan di mitra UK batu bata Kalipucang Kulon, antara lain, pembuatan batu bata konvesnsional dan ukuran batu bata tidak standar SNI. Aspek pemasaran masih menunggu pembeli, manajeman usaha bersifat kekeluargaan dan minimnya strategi pemasaran,modal terbatas, dan kurangnya informasi mengakses pinjaman modal. Tujuan pengabdian pada masyarakat Program Kemitraan Masyarakat (PKM) yaitu pembuatan mesin batu bata untuk meningkatkan produksi, pembuatan dan pemeliharaan website e-commerce untuk jual produk batu bata, manajemen usaha, strategi pemasaran, member informasi dan pendampingan mendapatkan modal usaha. Metode yang dipakaiadalah Workshop pembuatan dan pengoperasian mesin batu bata press sesuai standar SNI, pelatihan pembuatan dan pemeliharaan website e-commerce, memberikan pelatihan kewirausahaan, strategi pemasaranproduk, member informasi dan pendampingan untuk mendapatkan modal usaha,dan cara mengakses bantuan dana. Hasilnya dengan penerapan mesin batu bata press manpu meningkatkan 880% dibandingkan denganmanual tenaga manusia. Kekuatan mekanik batu bata merah paling optimal dimiliki oleh komposisi campuran dengan kode B3 dengan kekuatan tekan 41.712 Kg/cm2 dan densitas 25,87 kg/m3. Peningkatan produksi dengan sifat mekanik batu bata press mampu meningkatkan pendapatan usaha keluarga dan kualitas batu bata.Kata kunci: Kalipucang, batu bata, mesin, ektruder, densitasAbstractJepara is one of town where there is a business opportunity to meet the need of bricks. The brick industry center is located in Kalipucang Kulon Village, Welahan Subdistrict. Seen from the mechanical power, the bricks are still below the standard, with low density, high porosity, and red in color. Bricks contain iron sand and are made of red clay soil. There are 54 registered business entities of bricks in Kalipucang Kulon Village in 2015. There have been a lot of problems faced by the partner of the community service program in Kalipucang Kulon Village, such as the brick making is still conventional and the dimensions are not based on the (Indonesian National Standard or SNI. The marketing aspect is that they still wait for buyers. Besides, the management is family-based, the marketing strategies are still minimal, the capical is limited, and there is a lack of information about how to access capital loan. The Community Partnership Program was aimed at creating a brick making machine that would increase the production rate, creating and maintaining e-commerce website to sell the bricks, teaching about business management and marketing strategies, and giving information and assistances to get venture capital. Method applies was by giving a workshop on creating and operating press brick machine based on the SNI, training on creating and maintaining ecommerce website, training on entrepreneurship, and product marketing strategies, and giving information and assistances to get venture capital and how to access capital loan. The result showed that by using the press brick machine, the production had been increasing up to 880% compared to when making manually. The most optimal mechanical power of red bricks was when the bricks were made of the composition of mixture coded B3 with compressive strength of 41.712 Kg/cm2 and density of 25,87kg/m3. The production increase using press brick machine has improve the family’s revenue as well as the bricks’ quality itself.