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481	Electrical Engineering	ABS-956
Technical and Financial Analysis of Mini-hydro Power Plant 2x500 kW Bandung Regency, Indonesia Hendra Fadholi Adi Prabowo (a*) , Budi Sudiarto (a) a:Faculty of Engineering University of indonesia * : hendrafadholi[at]gmail.com Abstract The new regulation of Indonesia Energy and Mineral Resource Minister PERMEN ESDM 50, 2017 changed the tariff of mini-hydro power plant in the Bandung Regency from Rp. 1,200/kWh to Rp.850/kWh. Although the tariff change, the scheme becomes Build, Own, Operate and Transfer after 20 years. It needs investment recalculation according to the new tariff. The technical studies provided the potential electrical energy and the turbine’s type. The Financial analysis provided the feasibility of the project used IRR, NPV and Payback period method.The Variable used is EPC cost of some turbine brands and civil work. This paper informed that the project is feasible for investment and construction. The results of calculation according Turbine Manufacturer “A” are IRR 9,69%, NPV RP. 8.373.579.334 and the Payback period 7 years and 9 months Keywords: Minihydro power plant, Tariff , financial Anayisis, Indonesia, PERMEN ESDM Share Link | Plain Format | Corresponding Author (Hendra fadholi adi Prabowo)

482	Electrical Engineering	ABS-459
The Reliability Study of Gili Trawangan Photovoltaic system using RBD (Reliability Block Diagram) Method Agussalim Syamsuddin PT PLN (Persero) Research Institute Abstract In order for Gili Trawangan On-grid photovoltaic system to be reliable in supplying electricity, it is necessary to know the reliability of the main equipment in the PV system. The aim of this study is to determine the reliability of the main equipment of the On-grid PV system. The methodology is, collecting primary data in the form of disturbance data reports on PV System Gili Trawangan in 2011-2018, compiling the Reliability Block Diagram (RBD) of the PV system and determining the reliability and critical of the PV system equipment using Reliasoft Blocksim software version 11. The On-grid PV systems Reliability Block Diagram consists of 3 sub-systems; Source System, String Combiner and Power Conditioning System, each of which is composed of main components. RBD simulation results with Reliasoft Blocksim software obtained the results that the reliability of the On-grid PV system is 49% at t=100 hours and 40% at t=300 hours, this condition is still far from the target of PV system reliability of 80%. From the simulation also obtained critical equipment on the On-grid PV system is an AC Inverter and Breaker component, which has a high Reliability Importance (RI) value and with the highest reliability value. Keywords: On-grid PV System; Reliability Block Diagram Method Share Link | Plain Format | Corresponding Author (Agussalim Syamsuddin)

483	Electrical Engineering	ABS-460
URGENCE OF IMPLEMENTATION OF VIRTUAL OFFICE INFORMATION SYSTEM SERVICES IN BASIC TELECOMMUNICATION TECHNIQUE PRACTICES Zainudin Bonok,Bambang Panji Asmara, Syahrir Abdussamad Gorontalo State University Abstract The porpose of this research (1) to be accessible anytime the use of virtual office information system services, (2) For more time efficient use of virtual office systems. This research was carried out in the electrical engineering laboratory of Gorontalo State University. The method used in this research is to study literature and develop PHP programming software and AJAX programming technology. The research tool is using tools in the form of laptop hardware or personal computer and software in the form of object-oriented programming language PHP and AJAX programming technology. The research results showed that the virtual office can process the implementation of office work in the laboratory with the work system being the target of work for laboratory managers, and students who are practicing Basic Telecommunications Engineering from the results of the Urgency Implementation of Virtual Office Information System Services in Basic Telecommunications Engineering practice Electrical engineering laboratories can be used quickly and easily if supported by adequate network infrastructure, Can work even if not in one place, Digital telecommunications applications, conducting office / laboratory administration and practicum activities can still be implemented with the presence of virtual office system services office / laboratory activities related to information services can be done with time efficiency, place efficiency, saving costs Keywords: Keywords: Virtual Office, telecommunications, implementation, systems, information, efficiency Share Link | Plain Format | Corresponding Author (Zainudin Bonok)

484	Electrical Engineering	ABS-210
REDESIGN GAS INSULATED SWTICHGEAR TO SEMI AIR INSULATED SWITCHGEAR 500 KV SIDE AND 150 KV SIDE TO ACCELERATE MAINTENANCE AND REPAIR ANOMALY IN EHVS KEMBANGAN Dami Johar Damiri, Tony Widya Prasetio INSTITUT TEKNOLOGI PLN Abstract Absract. The main role of 500 kV extra high voltage Gas Insulated Substation in transmission system is serves connection between the electrical generation and transmission system. To improve equipment performance and the quality and reliability of electricity distribution need time to maintain gas insulated line compartment but preparation to maintenance requires a long time, limited maintenance duration, long implementation of gas evacuation. This paper is object to redesign Gas Insulated Switchgear to semi Air Insulated Switchgear on 500 kV side and 150 kV side with new design of Gas Insulated Line compartment in order to accelerate maintenance, gas evacuation job. After redesign GIS to Semi AIS show maintenance IBT after redesign is 25 hours faster and duration anomaly on GIL after redesign 24 hours faster. Keywords: Redesign Gas Insulated Switchgear, Gas Section, Closed Type, Open Type Gas Insulated Line Share Link | Plain Format | Corresponding Author (Tony Widya Prasetio)

485	Electrical Engineering	ABS-470
Modeling Wall Tracer Robot Motion Based on Fuzzy Logic Control Alwan Abdul Zaki (a), Rina Mardiati (a*), Edi Mulyana (a), Aan Eko Setiawan(a) a) Department of Electrical Engineering, UIN Sunan Gunung Djati Bandung Jl. A.H. Nasution No. 105, Bandung, Indonesia *r_mardiati[at]uinsgd.itb.ac.id Abstract Nowadays, robotic technology has experienced amazing progress, especially in the field of the wall tracer. This robotic wall trace will ease any mens work in the areas of industry, manufacturing, and infrastructure. The robotic wall tracer research and development have been conducted previously to improve the capability and the performance of robots. In this study, the blue print/plan of wall tracer was created so that the robots are always in the assigned set point position. The motion control system of the wall tracer robots were designed using fuzzy logic, with the input in the form of distance obtained from ultrasonic sensor planted on the peripheral parts of the robots, and the output is manifested in the speed of both left and right wheels. To achieve this, an AI was created and planted in the robots. Control fuzzy simulation was carried out by an employing a program using mamdani fuzzy logic models, so the robot can navigate down the wall with input decisions very close, near, middle, far, very far, and output decisions are very slow, slow, normal, fast, very fast. Based on the simulation result, we can concluded that the robot can perform their duties optimally, and could be implemented for the real system. Keywords: wall tracer robot, fuzzy logic, ultrasonic sensor, motion control Share Link | Plain Format | Corresponding Author (Rina Mardiati)

486	Electrical Engineering	ABS-726
Design and Implementation of Digital Library at Sharia and Law Faculty UIN Sunan Gunung Djati Bandung Didi Sumardi (a), Aan Radiana (a), Sarah Opipah (b), Miftahur Roifah (b) ,and Eki Ahmad Zaki Hamidi (b)* a) Sharia and Law Faculty, UIN Sunan Gunung Djati Bandung, Indonesia b) Electrical Engineering Department, UIN Sunan Gunung Djati Bandung, Indonesia *ekiahmadzaki[at]uinsgd.ac.id Abstract Abstract. The development of communication and media information technology has made an impact on how people can access information through a variety of media, including libraries that store collections of information that are stored and can be accessed electronically through digital libraries. The Sharia and Law Faculty of UIN Sunan Gunung Djati as a higher education institution responds to the challenges with the development of information and communication technology to provide information and communication based services by developing digital libraries that are directed to improve library service processes with good quality and speed, and to increase effectiveness and efficiency of library administration in order to facilitate teaching and learning for students. By using SLiMS software which is Open Source Software (OSS) based on digital web library at the Faculty of Sharia and Law designed and implemented so that it is possible to meet the needs of library automation (library automation) from small scale to large scale. Keywords: digital library, SLiMS, Web Share Link | Plain Format | Corresponding Author (Eki Ahmad Zaki Hamidi)

487	Electrical Engineering	ABS-727
Design and Implementation of Exam Assesment Thesis at Science and Technology Faculty UIN Sunan Gunung Djati Bandung Eki Ahmad Zaki Hamidi1 (a)*, Edi Mulyana (a), Mu’amar Wildan. F.A.R.(a) ,and Rizal Miftahussalim (a) a) Electrical Engineering Department, UIN Sunan Gunung Djati Bandung, Indonesia *ekiahmadzaki[at]uinsgd.ac.id Abstract Abstract. Web-based trial assignment thesis system is a website created to speed up the process of calculating the final assignment trial and add security from the value of student data that follows the trial because the data is directly stored in a database. The study aims to design and implement a web-based final assignment trial evaluation system at the Faculty of Science and Technology of UIN Sunan Gunung Djati Bandung. The method used in designing this assessment system is by designing it using a working principle which in the process of running it is done by the admin and user. In implementing the testing process where the user functions as a tester or supervisor and the admin functions as an operator or is usually part of the administration to run the work system of the assessment system. After doing the design and implementation process, good results are obtained, as evidenced by the results of tests that have been carried out by the user and admin showing that the work systems in the assessment system all function well in accordance with the design and objectives of the assessment system. Then all the input text, buttons and hyperlinks that exist in the rating system function properly. And according to the design, purpose and function of each. Keywords: Exam assignment thesis, web Share Link | Plain Format | Corresponding Author (Eki Ahmad Zaki Hamidi)

488	Electrical Engineering	ABS-988
Analysis Of Impact Installation Of Distributed Generation In A 20 kV Distribution System Ghina Shofi Nur Aisyah (a*), Dr.Yadi Mulyadi, M.T. (b), Dr. Hasbullah, M.T. (b) Department of Electrical Engineering Education, Faculty of Technology and Vocational Education, Indonesia University of Education Abstract This study aims to determine the effect of the installation of Distributed Generation (DG) on the value of voltage drop and real power losses in the distribution network of 20 kV Gunung Dukuh feeder (GNDH). In addition, this study also aims to determine the optimal distribution location of Distributed Generation (DG) to get the best voltage drop and power losses. The background of this research is that the voltage drop and power losses are common in GNDH feeders at PT. PLN (Persero) Cimahi area. The voltage value on the GNDH feeder is sometimes still below the standards set by PLN. This will certainly cause the load not to work optimally and can even cause damage to the electricity load and in the end will be very detrimental to all parties, both the electricity consumer and PT. PLN (Persero). Based on the characteristics of DG directly connected to the distribution system, there is no need for a transmission system to deliver electricity. This is certainly very influential on the decrease in the voltage drop and the value of power losses. The method used in this research is power flow simulation using ETAP 16.0.0 software and analysis after getting simulation results. The findings of this study are the simulation results prove that the installation of DG affects the decrease in voltage drop and power losses in GNDH feeder, before installation of DG the voltage drop in GNDH is 10.1% and the value of power losses before DG installation is amounted to 446.5 kW. After the DG installation simulation, the optimal installation of two DGs is found on the TM 36 bus and the TM 42 bus with a decrease in the voltage drop to 1.18% and a power loss value to 117.2 kW. Keywords: Distributed Generation, Voltage Drop, Power Losses Share Link | Plain Format | Corresponding Author (Ghina Shofi Nur Aisyah)

489	Electrical Engineering	ABS-734
Design of Smart Plug Prototype In Bluetooth-Based Home Automation Using Arduino Uno Eki Ahmad Zaki Hamidi (a)*, Mufid Ridlo Effendi (a), Faisol Syarifuddin (a), Muamar Wildan F.A.R. and Uu Nurul Huda (b) a) Electrical Engineering Department, UIN Sunan Gunung Djati Bandung, Indonesia *ekiahmadzaki[at]uinsgd.ac.id b) Sharia and Law Faculty, UIN Sunan Gunung Djati Bandung, Indonesia Abstract Abstract. Home automation is one way to facilitate daily activities in the home environment. By automating the socket system, it can shorten the operation of the switch. Arduino uno is used as the main controller in the smart plug system. Server systems are used so that the range of devices can be wider. Using the HC-05 bluetooth module as a wireless transmission media. The test results obtained a maximum range of 17 meters with a barrier and 20 meters in an open space. Delay occurs with a time of 400ms. condition on or off that triggers the Contactor is a relay that is connected to a power outlet in the home environment. Keywords: Home automation, Arduino uno , Smart Plug , Bluetooth Share Link | Plain Format | Corresponding Author (Eki Ahmad Zaki Hamidi)

490	Electrical Engineering	ABS-223
The Influence of Harmonic Distortion Against the Percentage Error of kWh Meter Imam Arif Rahardjo, Massus Subekti, Fajar Faturachman, Sakirah State University of Jakarta Abstract ABSTRACT This study aims to describe the influence of harmonic distortion against the percentage error of digital kWh meter to overcome the problem of harmonic distortion in the electric power system to digital kWh meter. This research was conducted at the Electrical Engineering Laboratory at State University of Jakarta. This research was conducted using the experimental method. The experiment determined the impact of harmonic distortion on digital kWh meter errors by creating harmonics in the test circuit. Data collected by providing changes in non-linear loads then observing and measuring changes in harmonics, and errors in digital kWh meters. Then the measurement results are recorded and analyzed to conclude the influence of harmonic distortion against the percentage error of digital kWh meter. Linear and non-linear load will affect the measurement of the kWh meter. In load testing, the higher the power the more kWh meter is inaccurate. The linear load of 100 watts with THD-I of 3.25% has the highest kWh meter measurement error rate of 2.99%. While the non-linear load of 100 watts with THD-I of 137.91% has the highest error rate of kWh meter measurement of 14.83%. This shows that the high error rate of digital kWh meter measurement is due to the high non-linear load. While the low error rate of measuring the digital kWh meter is due to the low linear load. Keywords: Influence, Harmonic Distortion, Error, digital kWh Meter Share Link | Plain Format | Corresponding Author (Imam Arif Rahardjo)

491	Electrical Engineering	ABS-482
Review of Digital Substation Equipment and Technical Specification in Indonesia M Ridwan, A S Habibie, H B Tambunan, K Gausultan H M, P A A Pramana PT. PLN (Persero) Research Institute Abstract Digital substation concept improves substations in advance by enhancing the equipment at station level, bay level, and process level. This enhancement of substation requires changes of equipment at those levels. The design needs to meet each equipment’s compatibility with the others. However, some manufacturers of the digital substation in Indonesia provide different specifications for the equipment at the same level. This condition causes challenges of implementation design of the digital substation in existing substations. In order to enhance existing substations including conventional substation and modern substation, the digital substation specification and equipment are reviewed. The reviews are based on digital substation standards including communication protocol, network redundancy, and time synchronization. After the specification study, the provided equipment in Indonesia are compared based on their technical specification. The technical specifications are compared at station level, bay level and process level based on provided equipment in Indonesia. The compatibility study is analyzed by using provided equipment, following with the implementation study in Indonesia. This paper provides reviews of the technical specification gap of existing substations compared to the digital substation. Finally, the consideration of choosing technical specifications also provided when implementing the digital substation in Indonesia. Keywords: digital substation equipment, communication protocol, network redundancy, time synchronization, technical specification Share Link | Plain Format | Corresponding Author (Muhammad Ridwan)

492	Electrical Engineering	ABS-740
THE DEVELOPMENT OF ENVIRONMENTAL KNOWLEDGE AND THE USE OF SOLAR ENERGY USING ENVIRONMENTAL RESPONSIBILITY BEHAVIOR IN CENTRAL JAVA Hamiyati (a*), Masus Subekti (b), Imam Arif Rahardjo (c) a) Family Welfare Education Study Program, Faculty of Engineering, University Negeri Jakarta b)Electrical Education Study Program, Faculty of Engineering, University Negeri Jakarta c)Electrical Education Study Program, Faculty of Engineering, University Negeri Jakarta *E-mail: hamiyati[at]unj.ac.id Abstract Abstract: Energy has an essential meaning in life to continue to develop and support economic and environmental activities. Every year energy in Indonesia increases rapidly in line with human growth. To supply energy needs, renewable energy sources must be developed. Renewable energy potentials such as solar energy have never been used on a large scale even though Indonesia has enormous energy potential. Solar energy can be used in the form of solar cells for electricity generation. The utilization of solar cells can help people who live in remote areas far from the electricity network. This research was conducted in Central Java by using descriptive qualitative methods and using research and development (R&D) methods. The technique used is an expressive qualitative analysis technique. The result solution implemented is to meet the increasing electrical energy needs of the community. This research produces renewable energy that can be used as a solution to solving the electrical energy crisis at an affordable cost and can increase the independence of the community so that it does not depend on government electricity supply and improve environmental responsibility behavior. Keywords: Responsible Behavior, Environmental Knowledge, Solar Energy Share Link | Plain Format | Corresponding Author (hamiyati hamiyati)

493	Electrical Engineering	ABS-1000
Implementation of Animal Tracking and Its Health Monitoring Systems Based on GPS And SMS Gateway Kurniawan Saputra, Lia Kamelia, Eki Ahmad Zaki Electrical Engineering Depatment, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung Abstract Animal temperature monitoring system and location tracking system based on Global Positioning System (GPS) and SMS gateway is one of the effective solutions to solve problems in detecting the health level of pets and decrease the amount of pet-loss cases. The system using GPS technology installed on the animals body. The system uses Arduino Pro Mini microcontroller that is connected to the GSM module as a communication channel between the user and the system. The system is designed to display the temperature and location data based on user requests sent via SMS. Tests show the system can work according to the initial scenario using the MLX 90614 sensor, Arduino Pro Mini AT Mega 328, GSM Module and GPS module. The system has the accuracy 99.62% compared to conventional thermometers. The system also has accuracy at 98.7% compared to the location accuracy on Google Maps. Keywords: Animal tracker, GPS, health monitoring, SMS gateway Share Link | Plain Format | Corresponding Author (Lia Kamelia)

494	Electrical Engineering	ABS-489
Performance Evaluation of Modified Gap Arrester Nur Widi Priambodo, Brian Bramantyo S.D.A Harsono, Achmad Syerif Habibie, Joko Hartono PLN Research Institute Abstract Arrester is used to increase the reliability of power transfer in the distribution network due to lightning strikes. There are several types of arresters to be developed. A modified multi gap arrester was tested to know its performance. The method used to determine its performance was done by comparing it with metal oxide type arresters through a series of laboratory tests. The testing consists of impulse test, salt fog test, and follow current interrupting test. The arrester performance related to residual voltage, breakdown voltage, and the ability to interrupt follow current were obtained through the tests. By knowing the performance of modified multi gap arrester, it can be used as a consideration in applying this technology related to the insulation stress of protected equipment and the potential for follow current phenomenon. Keywords: modified multi gap arrester; metal oxide arrester; arrester performance; insulation stress; follow current Share Link | Plain Format | Corresponding Author (Nur Widi Priambodo)

495	Electrical Engineering	ABS-490
Analysis of Unbalanced Voltage due to Varying Amounts Penetration of Rooftop PV in Distribution Network with Balanced Load Dhandis R. Jintaka, N. W. Priambodo, Brian Bramantyo S.D.A Harsono, Joko Hartono PLN Research Institute Abstract The increased penetration of rooftop PV on distribution networks is triggered by the increasingly cheap prices of solar panels and free energy obtained from the sun, so that it will get closer to reach the grid parity. However, the massive rooftop PV without storage at medium and low voltages will cause power quality problems, namely increased of voltage fluctuations, unbalanced voltages and harmonics, besides the emergence of active load fluctuations and power factors on the nearest bus. This paper analyzes the increase in unbalanced voltages in the distribution network due to the massive rooftop PV without storage. In a balanced load configuration, the presence of rooftop PV in certain phases with varying amounts penetration will cause voltage imbalances in the distribution network. From the results of this simulation it can be concluded that with a higher number of rooftop PVs, the spread of rooftop PVs on a higher number of phases results in a smaller voltage imbalance than if the rooftop PV is only concentrated in one particular phase. Then, Longer network lengths provide greater imbalance compared to networks with shorter distances. Keywords: rooftop PV, penetration level, unbalanced voltage, distribution network Share Link | Plain Format | Corresponding Author (Dhandis Rito Jintaka)

496	Electrical Engineering	ABS-492
Design of Automatic Goods Carrier Robot System Based on Line Sensor and Fuzzy Logic Control Mamdani Abdul Mutolib (a), Rina Mardiati (a*), Edi Mulyana (a), Aan Eko Setiawan(a) a) Department of Electrical Engineering, UIN Sunan Gunung Djati Bandung Jl. A.H. Nasution No. 105 Bandung, Indonesia *r_mardiati[at]uinsdg.ac.id Abstract The development of control technology, especially in the field of robotics is improving more progress in efforts to complete human work. One of them is goods transport robot that used in industry. At present, the majority of robots transporting goods still controlled by human. In this paper, a design of the automation system for robotic goods carriers will be presented. One of the challenges in the development of a goods transport robot system is how the robot can run stably when carrying goods. This paper presents a design of a robotic goods transport based on line sensors and fuzzy logic control so that when the robot is running, it can run smoothly. The input used in this fuzzy logic system is the light and weight which obtained from the BFD-1000 sensor and barometric sensor. Whereas the output of the fuzzy system is the speed of right motor and the left motor that can stabilize the robot when the load is added. The simulation was done using Matlab to get the membership function value. Based on the simulation results using a case example, it is known that the load carried is 404 grams and the living sensor is sensor 3. Then the simulation results obtained speed of right motor PWM value of 128 and speed of left motor PWM value of 128. So that the robot runs in a straight state. Based on this result, we can conclude that this control model could be implemented well to the real system. Keywords: Goods Carrier Robot, Fuzzy Logic Control, Mamdani, Weight, Speed Share Link | Plain Format | Corresponding Author (Rina Mardiati)

497	Electrical Engineering	ABS-1005
Raspberry Pi based SCADA System Using Codesys for Workshop Facilities Sarosa Castrena Abadi, Mindit Eriyadi, Dani Usman, Yuda Muhammad Ramdani, Aris Suryadi Politeknik Enjinering Indorama Abstract This study aims to create a prototype of the SCADA system used to control the lighting source facilities and a fan-based Raspberry Pi in the workshop of the Electrical Engineering Study Program of Politeknik Enjinering Indorama. This system consists of Raspberry Pi model B, UL 2803 Driver, switch module, relay module, lamp, and fan. Raspberry Pi as a controller or mini PLC programmed using CodeSys software with the ladder logic diagram programming. The System control process can also be done through the HMI display (Human Machine Interface), HMI display is designed using Codesys Web Visualization feature so the system can be controlled through a PC or mobile web browser while connected to the campus intranet network. The results showed the prototype SCADA system that was built was able to control sources for lighting and fans both locally and remotely through a mobile or PC in real-time with an average control time of 200 ms. Keywords: SCADA, Raspberry Pi, Codesys, Ladder, PLC Share Link | Plain Format | Corresponding Author (Sarosa Castrena Abadi)

498	Electrical Engineering	ABS-494
Design & Analysis Of Multiple Charge Controller Systems In Hybrid Power Generation Mohammad Noor Hidayat, Atika Dyah Wulandari, Ferdian Ronilaya State Polytechnic Of Malang Abstract Currently, the demand for electricity is increasing from time to time. While the existence of fossil fuels to generate electricity is depleted. This condition resulted in the use of renewable energy source in electrical power generation. Since the electricity generated from renewable energy sources is not constant because it is depending on the climatic conditions, a controller of the charging and discharging mechanism on a battery is necessary for it to work optimally for storing electricity. To overcome this problem, one of the solutions is by applying hybrid power generation technology. One the important equipments related to this technology is the application of a charge controller. The charge controller here is used to control the charging and discharging mechanism to store electricity in a battery. The charge controller is found mainly in a stand alone mechanism where the controller only have one input from one renewable energy source. If we have more than one renewable sources, therefore we need a charge controller with multiple input terminals. This study examines and compares the design of a stand alone charge controller and a multiple input charge controller. The result shows that it is more efficient to use a multiple input charge controller rather than to use two single input charge controller. Keywords: battery, charge controller, Maximum Power Point Tracking (MPPT) Share Link | Plain Format | Corresponding Author (ATIKA DYAH WULANDARI)

499	Electrical Engineering	ABS-495
ANALYSIS OF IMPLEMENTATION OF VFD CONTROLLER IN PADDY DRYING MACHINE PROTOTYPE Mindit Eriyadi, Dani Usman, Yuda Muhammad Hamdani, Sarosa Castrena Abadi, Aris Suryadi Politeknik Enjinering Indorama Abstract The prototype of the paddy drying machine is a device used for paddy dryers that are not weather dependent. The driver of this prototype paddy drying machine uses ½ HP induction motor as its main mover. To be able to adjust the induction motor rotation, the writer uses the Variable Frequency Drive (VFD) brand LS iC5 with 1 HP power. The rotation needed to rotate the load can be done by changing the frequency and voltage so that the rotation speed of the induction motor can be adjusted as needed. From the testing of a no-load induction motor with a frequency adjustment range from 5 Hz to 13 Hz, the induction motor speed is 142.8 rpm to 375.3 rpm. The measured voltage is 76.5 V to 116.7 V and the measured current is 2.5 A to 1.6 A. From the results of the test of a no-load induction motor it can be concluded that the Frequency to voltage ratio is directly proportional while the frequency to current ratio is inversely proportional. In testing induction motors with a frequency adjustment range from 5 Hz to 9 Hz, they produce the same conclusions as those of no-load induction motors. VFD is certainly appropriate to be used as a speed regulator as needed. Keywords: Induction Motor, Variable Frequency Drive (VFD), Speed Control, Motor rotation Share Link | Plain Format | Corresponding Author (Mindit Eriyadi)

500	Electrical Engineering	ABS-508
Voltage stress reduction for distribution line covered conductor Putu Agus Aditya Pramana, Anindita Satria Surya, K. G. H. Mangunkusumo, Handrea Bernando Tambunan, Dhandis Rito Jintaka, Kemas M. Tofani, Muhammad Ridwan PLN Research Institute Abstract Most of distribution line in Indonesia is surrounded by the vegetation, and it causing frequent interruptions of temporary ground phase when bare conductors are used to distribute power. To face this problem, the distribution utility replaced the bare conductor by using a covered conductor, which in the current standard, covered conductor has only one insulation layer, that is XLPE. During its operation, many covered conductors are found broken. The phenomenon is started by the occurrence of pinholes which is caused by cable degradation by voltage stress. When the lightning strikes, it cause over voltage and short-circuit current flowing from the phase to the ground through the pinhole. Under the mechanical tension, if the short-circuit current has sufficient energy, the covered conductor broken. To reduce the voltage stress and probability of pinhole occurrence, this paper proposed the novel design of covered conductors and it accessories. The study was conducted through simulations using finite element simulation tools. The simulation results show that voltage stress reduction can be done by adding semiconductor layer into the XLPE insulation, replacing the insulator material from ceramic to polymer, placing the bonding tip at the top, and modifying the binding method using the special clamp method. Keywords: covered conductor, pinhole, stress reduction Share Link | Plain Format | Corresponding Author (putu agus aditya pramana)

501	Electronics Engineering	ABS-771
Implementation Project based learning Using E-Learning : SPOT UPI Asep Maosul, Muktiarni, Nia Lestari Universitas Pendidikan Indonesia Abstract Learning model is an important component in learning activities, in this case not all characteristics of the learning model match the characteristics possessed by students. Project-based learning model (project based learning) is innovative learning that is centered on students (student centered) and sets the teacher as a motivator and facilitator, where students are given the opportunity to work autonomously to construct their learning. SPOT is an online-based learning application program for lecturers and students at Universitas Pendidikan Indonesia (UPI). The objectives of this study are: 1) Getting a general picture of Project based learning. 2) Knowing the implementation of project based learning with the SPI UPI 3) Knowing the effectiveness of SPOT as e-learning in the UPI environment. This research implementation project based learning using E-Learning uses a descriptive approach in its implementation through several stages, namely: Finding facts in the research process and then describing the results of the research obtained in accordance with the facts found in the field. This research is focused on developing the format. Keywords: Project based learning,E-Learing, SPOT Share Link | Plain Format | Corresponding Author (Asep Maosul)

502	Electronics Engineering	ABS-772
Smart Trash-can Robot based on Internet of Things (IoT) Pitoyo Yuliatmojo, Taryudi*, Muhammad Marwan Sugiyanto Faculty of Engineering, Universitas Negeri Jakarta, Jakarta, 13220, Indonesia Abstract Waste is one of the crucial issues in Indonesia. Some of the main causes are the lack of waste management as well as a lack of concern for people in getting rid of waste in place. Therefore, this study has developed a prototype of a smart trash-can robot based on the Internet of things (IoT) as the implementation of the advances technology in the era of industry 4.0. The overall system consists of a line follower robot that uses a microcontroller ATMEGA 2560 as a controller system and equipped with a line detection sensor. The robot automatically carries the trash-can to a specific location along the track that has been marked with an RFID tag according to the user request through BLYNK application on the smartphone. The trash-can is equipped with the Ultrasound sensor that can detect the level of garbage and provide notifications to the IoT based application on the smartphone and also to the users email address. While the ESP8266 module is used as a medium of communication between the robot and the user through the Internet. The results of this study showed that the system has a good performance with a success rate of 87.2 percent. Keywords: Smart Trash Can, Robot, Internet of Things, Blynk Share Link | Plain Format | Corresponding Author (Taryudi .)

503	Electronics Engineering	ABS-1033
Design and Implementation of Pipe Cutting Machine with AC Servo Motor and PLC Based on HMI Syufrijal Syufrijal (a*), Muhammad Rif’an (a), Agung Wibisono Rivai P (a), Rimulyo Wicaksono (a) a) Electronics Technology Diploma, Faculty of Engineering, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta 13220, Indonesia *syufrijal[at]unj.ac.id Abstract This research aims to design a pipe cutting machine using an AC servo motor and PLC as controller based on HMI (Human Machine Interface). The use of AC servo motors is done to maintain accuracy and precision in cutting pipe lengths. This research uses experimental methods which include hardware and software design. PLC LS XGT Series is used to control the pipe cutting machine automatically based on the input signal from the proximity and encoder. Proximity is used to detect the presence of pipe while encoder is used to detect AC servo motor rotation. By knowing the number of turns of the AC servo motor through the encoder, the length of the pipe can also be determined. The AC servo motor with Mitsubishi HC-KFS43 400W models are used to pull the pipe, gripping the pipe, and moving the cutting machine while a modified AC circle saw motor is used to drive the cutting blade. Based on the results of the study, the cutting machine can cut pipes automatically according to the desired number and length of the pipe. The work process can be monitored and controlled on a computer through HMI. Keywords: Cutting Machine, AC Servo Motor, PLC, HMI Share Link | Plain Format | Corresponding Author (Syufrijal Syufrijal)

504	Electronics Engineering	ABS-1043
Analysis of Scanning Electron Microscopy on Cleaning Weights Using Ultrasonic Cleaner Irawati Dewi Syahwir (a*), Prasetyo Wibowo Yunanto (b) (a) Metrology and Instrumentation, Metrology and Instrumentation Academy, Bandung, Indonesia *irawatidewisyahwir[at]gmail.com (b) Informatics and Computer Engineering Education, Faculty of Engineering, Universitas Negeri Jakarta Abstract Current cleaning methods have been developed with the use of ultrasonic. Ultrasonic is a sensor that emits certain frequency waves that are 20 kHz to 20 MHz. At a frequency of 40 kHz cleaning is more effective than frequencies below 25 kHz or above 60 kHz. The method used is the Scanning Electron Microscopy (SEM) weights before and after cleaning with an Ultrasonic Cleaner. The SEM results show that there are changes in chemical elements after cleaning, by comparing the SEM results before cleaning with after cleaning. Keywords: cleaning; ultrasonic cleaner; weights Share Link | Plain Format | Corresponding Author (prasetyo wibowo yunanto)

505	Electronics Engineering	ABS-277
Design and Implementation of The pH Control System for Wastewater Treatment using pH sensor V1.1 and Arduino Microcontroller Asep Najmurrokhman(*), Kusnandar, Udin Komarudin, Maulani Kapiudin, Reja Mulki Hadiansyah Dept. of Electrical Engineering, Universitas Jenderal Achmad Yani Jl. Terusan Jend. Sudirman Cimahi 40531, Indonesia *asep.najmurrokhman[at]lecture.unjani.ac.id Abstract Water is a primary human need for carrying out daily activities. Before being consumed or used in daily life, water must be free of germs and free of pollutants. One of the water pollutants is household waste that comes from used water containing soap. If the water is to be reused, the pH of the water should be around 7 by mixing acidic solution with a certain concentration into the wastewater. This paper describes the prototype of a closed loop pH control system using the pH sensor V1.1 and Arduino microcontroller. The pH control process is carried out by mixing an acidic solution into the wastewater. A stirrer is activated to accelerate the neutralization process through the actuation signal sent from the Arduino microcontroller to the DC motor that connected to the stirrer. By comparing three pollutant samples, the experimental results show that the final value of pH around 7 is rendered effectively between 90 to 130 seconds of mixing process. Keywords: Arduino microcontroller; DC motor; neutralization process; pH sensor; wastewater Share Link | Plain Format | Corresponding Author (Asep Najmurrokhman)

506	Electronics Engineering	ABS-799
A Wideband Microstrip Triangle Patch Antenna with Double Dumbbell Shaped Defective Ground Structure for 5G Application Efri Sandi, Baso Maruddani, Darwan Flores Ronald and Reza Ramadhan Universitas Negeri Jakarta Abstract In this study, the addition of defective ground structure (DGS) to a microstrip triangle antenna was developed to improve bandwidth performance. Development is carried out through the addition of a double dumbbell-shaped at the DGS antenna structure that works at 28 GHz for 5G applications. The sample design is 4T4R microstrip antenna using Rogers RT5880 substrate material with a dielectric constant (ε_r) of 2.2, h = 0.787 mm. The sample antenna design has dimension 30.11 × 19.89 mm. This study uses a research and development approach through the calculation of DGS structure and design of multiple dumbbell-shaped on the ground layer. The simulation and measurement results show a significant increase in bandwidth performance compared to without using DGS. This study also shows the improvement in bandwidth performance and the gain of microstrip antenna with the addition of double dumbbell-shaped compared to the addition of single dumbbell-shaped in previous studies. Keywords: DGS structure, Triangle Patch, Dumbbell-Shaped, Wideband Antenna, 5G Antenna Share Link | Plain Format | Corresponding Author (Efri Sandi)

507	Electronics Engineering	ABS-801
Design Of Patiserie Learning Media Based On Hybrid Learning As Ready For Competency Test Yulia Rahmawati, Sudewi Yogha, Asep Maosul Universitas Pendidikan Indonesia Abstract This research is motivated by a problem in the use of lerarning media not entirely interesting and varied, the collection and evaluation task still print-based learning outcomes, One of the difficulties associated with the technical problem is to understand the material and collect assignments. From the standpoint of the excess, one of which is that the student no longer print the job so they are more efficient because there are no printing costs for a college assignment. Chapter discussion is divided into three sub-topics. The first is planning an online course in qualitative research program. Planning the semester learning, learning strategies and the preparation of the material in the form of software files, making it easy to upload and downloaded by faculty and students. The second is the implementation of online courses in qualitative research program. This research aims to develop learning media patiserie is user frendly and customized on hybrid learning system to test the readiness of competence. Keywords: Hybrid Leerning, Media Learning, Competency Test Share Link | Plain Format | Corresponding Author (Yulia Rahmawati)

508	Electronics Engineering	ABS-815
DESIGN AND DEVELOPMENT OF MAINCOURSE LEARNING MEDIA BASED ON ANIMATION VIDEO Atat Siti Nurani, Ai Mahmudatussaadah, Muktiarni Universitas Pendidikan Indonesia Abstract Learning Media is the facilities, tools, support space in the learning process. There are several reasons that allow the necessity of learning media such as limited learning time in class, to understand the material saturated with media and the books have to spend if to attend training courses. Maincourse especially learning that requires students to have the skills in practice maincourse dish. Thus requiring escort facility when outside the classroom learning with learning methods that effectively and efficiently as presenting a tutorial manufacture maincourse dish with explanations and steps are clear, do not have to use the internet access or a training course to learn. Media that was developed to support the learning process maincourse namely video animation. Keywords: Learning Media, Video Animation, Maincourse Share Link | Plain Format | Corresponding Author (Atat Siti Nurani)

509	Electronics Engineering	ABS-820
DESIGN OF VIDEO ANIMATION BASED LEARNING MEDIA IN PATISERI LEARNING Sudewi Yogha,Yulia Rahmawati, Asep Maosul Universitas Pendidikan Indonesia Abstract Video animation is perfect as a media tool in the learning process in the classroom. In patiseri learning students demanded to be able to master the material and able to practice patiseri products they have learned. For teaching materials can be easily understood by users, in particular by students of this material needs to be delivered through the medium of an interesting learning. One is to use animated videos are delivered in the form of information about the product patiseri well as ways and steps in the manufacture of products patiseri. Instructional media animated video is expected to be a solution to help improve the skills of students in the learning process. The research methodology of learning media application making animated videos using multimedia development methodology Luther-Sutopo version that is the concept, design, collection of materials, manufacture, test, and distribution. The conclusion shows that the application of instructional media animated video can be used to deliver material appropriate patiseri with special needs in accordance with the learning, and has fulfilled the concept is expected. Keywords: Learning Media, Video Animation, Patiseri Share Link | Plain Format | Corresponding Author (Sudewi Yogha)

510	Electronics Engineering	ABS-827
DESIGN OF CONCRETE STRUCTURE TEST DEVICE ON BRIDGE USING GEOPHONE Rizki Ardianto Priramadhi, Rahadian Reza Rizaldy, Muhammad Ary Murti Electrical Engineering, Telkom University Abstract The increase in population every year makes more and more owners of motorized vehicles and cars resulting in full access to the highway, not only the highway that experiences density while the bridge is one of the factors of density due to the number of motorized vehicles and cars that pass not only at a certain time the bridge will be congested and experience enough vibrations because the load carried by the bridge is different, the greater the load held by the bridge, the more the bridge vibrates, therefore the writer will make an instrument using a geophone sensor that can measure how much vibration on the bridge and analyze how strong concrete works on the bridge which often occurs density, with the elastomer or rubber pads used between abutments with the placement of the elastomer feeding road will reduce vibrations that occur due to the burden carried by the bridge. This tool will use the main components in the form of geophone sensors. Geophone converts ground motion into voltage, Geophone is a transducer of ground movement that is very sensitive. A geophone converts seismic energy, or vibration, into an electric voltage that can be measured accurately. In this study, it was found that geophone sensors can find out the amount of voltage and deflection that occurs when a vehicle crosses the bridge, to process data in this system using a microcontroller in the form of Arduino uno and displayed in excel data to facilitate data collection. From this study it can be concluded with a maximum deflection of 0.3 cm or 0.003 meters at a time of 1045kg, meanwhile when a vehicle load of 2 tons to 10 tons will occur a maximum deflection of up to 2 cm on the Cilampeni Bridge and on the Kopo Tol Bridge Keywords: geophone, elastomer, Arduino uno, seismic energy Share Link | Plain Format | Corresponding Author (Rizki Ardianto Priramadhi)

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