Garuda - Garba Rujukan Digital

p-Index From 2019 - 2024

P-Index

This Author published in this journals

All Journal Cakrawala Pendidikan Jurnal Penelitian Saintek INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni Journal of Mechanical Engineering Science and Technology Jurnal Teknik Mesin dan Pembelajaran

Sunomo Sunomo

Universitas Negeri Yogyakarta

Author-ID : 2910282

Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

Published : 6 Documents Claim Missing Document

Claim Missing Document

Articles

MODIFIKASI DAN IMPLEMENTASI" RELAI ELEKTRONIK· TEGANGAN LEDIH DAN TEGANGAN KURANG UNTUKJARINGAN LISTRIK SATU FASA Sunomo Sunomo
Jurnal Cakrawala Pendidikan CAKRAWALA PENDIDIKAN, EDISI 2,1992,TH.XII
Publisher : LPMPP Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/cp.v2i2.8906

Tujuan penggunaan relai elektronik tegangan lebih dantegangan kurang untuk jaringan listrik satu f~sa adalah untukmemutus tegangan jaringan satu fasa ke pemakai (beban)secara otomatis untuk melindunginya dari kemungkinan kerusakan. jika oleh suatu sebab, tegangan' jaringan listrik naikmelebihi batas normalnya ,atau turun. melampaui ambangbatas minimum yang telah ditentukan. Beban yang dilindungidapat berupa: televisi, video, perangkat tata suara, komputerdan peralatan llstrik a tau elektronik lainnya. Modifikasi daniinplementasi dimaksudkan sebagai pengembangan dan pelaksanaandalam bentuk rangkaian nyata berdasar gambardiagram blok dari TS Madava Rao, profesor. teknik listrikberkebangsaan India.Gambar blok diagram Rao untuk tegangan lebih dantegangan kurang yang menggunakan dua saklar pemutusmaknetik pada keluarannya, oleh penulis dikembangkan dandiwujudkan menjadi hanya menggunakan satu saklar pemutusmaknetik saja, dilengkapi dengan indikator audio dan visual.Indikator audio berupa sistem alarm yang akan berbunyi jikategangan jaringan telah naik atau turun melebihi batas yangtelah ditentukan bersamaan ...dengan memutusnya kontaktor.Indikator visual berupa tiga buah diode pancar cahaya yangmasing-masing menunjukkan apakah tegangan jaringan sedangdalam batas normal, melebihi atau kurang dari harga pengaturan yang telah ditetapkan.Uji laboratorium terhadap rangkaian menunjukkankinerja yang memuaskan dalam arti mampu bekerja memutu5jaringan ke beban sesuai dengan rancangan pada pengaturan140 volt dan 260 volt. Pada tegangan jaringan 380 volt alatmasih bekerja, pada 440 volt sekering pemutus .bekerjamemutus catu daya ke rangkaian sehingga reJai elektroniksepenuhnya terbebas dari jaringan.

MODIFICATION OF TRIGGER SYSTEMS ON THIRD POWER ELECTRICAL CONTROL OF MEDANG VEDC PHASE Haryanto Haryanto; Sunomo Sunomo
Jurnal Penelitian Saintek Vol 11, No 1: April 2006
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

AbstractThe fault of the pulse transformer and the TCA 785 triggering systems in themodule of Power Electronics made by VEDC Malang make it difficult tosubstitute due to the high prices and unavailability in Yogyakarta market.The purpose qf this application research is to substitute of TCA 785 with twooutputs by two pieces of NE 555 which work in the same manner, and tosubstitute ofpulse transformer for SCR and TRIAC phase control (firing) withoptocoupler MDC 302/ in module 501 for laboratorium practicum: Themodification is needed because of unavailability of the two components and theprice. For three phase control, the system need three pieces of both TCA 785 '.I'and pulse transformers. So, the substitution needs six pieces of both NE 555 '.I'and MOC302I '.1'. Using of optocouplerfor coupling offiring the SCR '/TRlAC '.I'is to avoid induction voltage from the main to the controlling part system whenthere is afault or short circuit in the main system.This experiment applied to the SCR firing of 0"-180" phase control and to theTRIAC of U' -180" and 180" -360" phase control. in this action. the performanceofthe NE555's and the MDC 3021 '.I' must be the same of the TCA 785 and thepulse transformer.The result shows that without the compensation circuit of main networksynchronization, NE 555 's have good performance for SCR half wave phasecontrol. For TRIAC phase control, the control of positive and negative cycledone in serial manner, not in the same period, the first action is/rom (/' to 180",and then followed from 180" to 360". With the compensation circuit of mainnetwork synchronization, the behavior offiring 111 phase control has the same manner with TCA 785 but notforfiring of 0"-45" The cause is comingfrom the fact that the firing signalfrom the of NE 555 is done by the rear of the output pulses. and the histeresis of serial synchronization system for NE 555 triggering To improve the performance, new design of main network synchronization is needed, that work in the leading scheme of zero crossing.

APLIKASI ELEKTRONIKA DAYA UNTUK PENGATURAN MOTOR INDUKSI BAGI PARA GURU SMK DI DAERAH ISTIMEWA YOGYAKARTA Istanto Wahyu Djatmiko; Muhammad Ali; Sunomo Sunomo; Yuwono Indro Hatmojo
INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni Vol 19, No 1: Februari 2015
Publisher : LPPM UNY

Community Service Activity (PPM) on training "Power ElectronicsApplications for Induction Motor Settings for vocational teachers in YogyakartaSpecial Region" conducted at the Laboratory of Power Electronics andElectrical Machine Laboratory in the Department of Electrical EngineeringEducation FT UNY. This activity is conducted by the PPM team consisting oflecturers in the Department of Electrical Engineering Education , FT UNY withthe aim of: (1) provide basic knowledge and skills application of power electronics circuits, namely a series of alternating voltage regulator for inductionmotor control; (2) provide knowledge and skills of the induction motor settingsby utilizing one of the instructional media in the form of a variable speed driveunit; (3) do the programming unit of variable speed drives for induction motorsrotation speed controlling; and (4) do the programming variable speed driveunit for braking the motor induction. PPM activities conducted during the three-day meeting with the allocation for 25 hours. The training material covers the theory and practice include:induction motor theory, the theory of series AC drives, AC drive circuit practice, and practice of induction motor control using Altivar 312. This trainingwas attended by 23 people who had a vocational teacher expertise associatedwith this training. Training method used lectures, discussions, question andanswer, demonstration, and practice directly. The achievement of this result can be expressed PPM activities: (1) theparticipants have increased knowledge and skills in power electronics and itsapplications to induction motor settings are indicated by an increase in the valueof the mean pre-test and post-test participants of 48.9 into 76.5; (2 ) of theparticipants felt the benefits of the PPM activity shown from a mean value of 95 96 3.46 questionnaire scores that can be categorized, this activity is very good; and(3) the participants can develop the training materials as a instructional mediafor the control induction motors

Analysis of Casting Defect, Tensile Strength, and Hardness of Al-Si Casting Alloy with Percentage Variation of Clay Binder Bangkalan Imam Muhtarom; Sunomo Sunomo
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 2, No 2 (2018)
Publisher : Universitas Negeri Malang

Casting is one of method that used in forming the work piece by melting specific metal and pouring into moulding that has been prepared. This study aimed to determine the effect of the use of Bangkalan clay as binder in sand moulding against tensile strength, hardness, and defects in Al-Si casting alloy by using gravity casting method. The method used in this study was experimental method then using descriptive analysis. Descriptive analysis included explanation of the test result of tensile strength, hardness, and the type of surface defect of Al-Si casting. Based on the research result obtained the highest shear strength in wet condition obtained on sand moulding which had the highest tensile strength, that was sand moulding with composition of 12% Bangkalan clay, and 0.5% bentonite. While the highest hardness value of Al-Si casting result obtained on specimen with variation of 12% Bangkalan clay with the value of 131.9 HV. Casting defects that appeared on the surface of all casting product variations. The defects that found were fin defects, pinhole defects, sand loss defects, and surface roughness. Based on the result above, could be concluded that variation of 9% Bangkalan clay and 0.5% bentonite as binder was the best variation.

Studi Pengelolaan Uji Kompetensi Keahlian Berlisensi Lembaga Sertifikasi Profesi Pada Jurusan Teknik Mesin di Smkn 1 Blitar Andika Setiawan; Widiyanti Widiyanti; Sunomo Sunomo
Jurnal Teknik Mesin dan Pembelajaran Vol 1, No 1 (2018)
Publisher : Universitas Negeri Malang

Uji kompetensi keahlian berlisesnsi LSP di SMKN 1 Blitar bertujuan untuk menyertifikasi peserta didiknya terhadap kompetensi yang dimiliki selema menempuh pembelajaran di sekolah. Sertifikat LSP diberikan oleh siswa yang berkompeten dan diterbitkan langsung oleh Badan Nasional Sertifikasi Profesi (BNSP). Dengan adanya sertifikat ini siswa akan mendapat pengakuan terhadap kompetensi yang dimilikinya. Pengelolaan uji kompetensi LSP ini terdiri dari beberapa tahap yaitu, persiapan, pelaksanaan, evaluasi dan penerbitan sertifikat. Selain seagai pengakuan sertifikat ini diharapakan bisa menjadi pertimbangan dalam penyerapan tenaga kerja di dunia usaha maupun dunia industri.

Bahaya Asap dan Radiasi Sinar Las Terhadap Pekerja Las di Sektor Informal Abdul Qolik; Yoto Yoto; Basuki Basuki; Sunomo Sunomo; Wahono Wahono
Jurnal Teknik Mesin dan Pembelajaran Vol 1, No 1 (2018)
Publisher : Universitas Negeri Malang

Proses pengelasan jika tidak diperhitungkan sebelumnya dapat mengakibatkan bahaya-bahaya yang tidak diinginkan bagi pekerja las, contohnya kebakaran, peledakan, keretakan, dan bahaya yang tidak kalah pentingnya adalah bahaya yang mengganggu alat pernapasan. Bahaya tersebut berasal dari asap dan radiasi sinar las. Meskipun demikian, pedoman untuk bekerja secara aman sesuai dengan prosedur kesehatan dan keselamatan kerja seringkali diabaikan, terutama oleh pekerja las di sektor informal dengan skala kecil. Oleh karena itu sangat wajar jika seringkali ditemukan tenaga kerja di bengkel pengelasan yang bekerja dengan tingkat keamanan yang sangat minim. Keadaan tersebut menyebabkan perlunya diadakan pelatihan guna meningkatkan pemahaman bahaya proses pengelasan serta keselamatan dan kesehatan pekerja las di sektor informal.

Co-Authors Abdul Qolik Andika Setiawan BASUKI BASUKI Haryanto Haryanto Imam Muhtarom Istanto Wahyu Djatmiko Muhammad Ali Wahono . Widiyanti Widiyanti Yoto Yoto Yuwono Indro Hatmojo, Yuwono

Title

Found 6 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 6 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 6 Documents
Search