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451	Electrical Engineering	ABS-95
IOT: Improved Home Energy Control System Based on Consumer Behavior Melky Radja,Gilbert Gutabaga Hungilo,Gahizi Emmanuel,suyoto Universitas Atma Jaya Yogyakarta Abstract the merge of urbanization in Indonesia results in a sharp increase in household energy consumption. Energy conservation is a global challenge for both individuals and decision-makers. The increasing household energy consumption is mostly caused by unwanted usage of electrical energy. The purpose of this paper is to design an improved smart home electricity management system based on consumer behaviour which will help household occupant to control the usage of electricity automatic using sensor and manual using a smartphone. The sensor used in the system are a motion sensor, temperature sensor, sound sensor, and light sensor also wireless technology is used for controlling electricity outside of the home using a smartphone. The proposed system has multiple benefits of saving electricity bill of the house and keep the owner of the house updated about home security with the ability to control the home appliances and reduce electrical energy consumption. Keywords: Electrical Management System; IOT, Control System, Smart Home Share Link | Plain Format | Corresponding Author (Gahizi Emmanuel)

452	Electrical Engineering	ABS-98
FREQUENCY CHANGING EFFECT ON CURRENT TRANSFORMER CLASS 0.5S Hendy Heryanto Surya(a*), Budi Sudiarto (b) (a) Department of Electrical Engineering, University of Indonesia. hendyheryanto[at]yahoo.com (b) Department of Electrical Engineering, University of Indonesia. Abstract This paper is aiming the frequency changing effect to an instrument current transformer, which is used in a measurement of an energy billing. As a technology is developing, the usage of non-linear load is increase. This will cause a problem in a power quality of an electrical system. This disturbance of power quality effected the working frequency on electrical system. As current transformer is one of the equipment in the system, when the primary of a current transformer is disturbed, it could also affected the secondary side. The result shows that the frequency changing has an effect to error ratio and phase displacement on a current transformer class 0.5s which will decrease while the frequency is increase but still within the standard limit. Frequency changing also has an effect on Security Factor on an instrument, which will increase when the frequency is increase. So, it is important to keep frequency within the fundamental frequency. Keywords: Current Transformer, Accuracy Class, Frequency Share Link | Plain Format | Corresponding Author (Hendy Heryanto Surya)

453	Electrical Engineering	ABS-100
The Comprehensive Review on Early Detection of Macro Nutrients Deficiency Based on Image Processing Technique Lia Kamelia , Titik Khawa Abdul Rahman, Reni Haerani UIN Sunan Gunung Djati Bandung Asia e-University , Selangor Malaysia Politeknik PGRI Banten Abstract Images are the significant source of data and information in the agricultural technologies. The use of image processing techniques had important implication for the analysis of smart farm. The analytical system using digital image processing would classify the nutrient deficiency symptoms much prior than human could identify. This will enable the farmers to adopt appropriate corrective action in time. The paper discusses various methods used in the detection of nutrient deficiencies in plants based on visual images. The image processing techniques has several stages to get the best results in nutrient deficiency detection, namely image acquisition, image enhancement, image segmentation, and feature extraction. Through analysis and discussion, the paper proposed new technique in every phase of image processing for the detection of nutrient deficiency as the basic of the implementation in future research.in the future the image processing will be more broadly used to resolve the nutrient deficiency detection problems, and will expand the crops quality and quantity with universal and robust performance of farming automation systems, consequently the research will support the growth of agricultural automation equipment and systems in a more smart approaches. Keywords: agriculture, detection, nutrient deficiency, image processing. Share Link | Plain Format | Corresponding Author (Lia Kamelia)

454	Electrical Engineering	ABS-101
ANALYSIS OF ELECTRICAL ENERGY EFFICIENCY USING LED IN THE BANK BUILDING Parjiman, Imam Arif Rahardjo, Massus Subekti, Aris Sunawar State University of Jakarta Abstract Abstract This study aims to analyze the efficiency of electrical energy by utilizing LED lights in the bank building in replacing flourecent type lamps which can later be used as a basis for consideration of energy efficiency. This research was conducted at the Bank Building and the Electrical Engineering Laboratory of the State University of Jakarta for seven months. This research was conducted using a qualitative description method by observing and measuring initial conditions, then conducting an analysis to calculate efficiency with recommended recommendations. To carry out energy efficiency analysis begins with an ideal plan for the need for strong intensity of light according to the standard using the type of LED lights. The total efficiency of electrical energy with the use of LED lights in the Bank Building is 18 (eighteen) percent. Keywords: Effeciency, Energy, Electrical, LED Share Link | Plain Format | Corresponding Author (Imam Arif Rahardjo)

455	Electrical Engineering	ABS-358
Utilization of Water Flow to Revive the Internet-Based Water Meter System from a Household Scale Rio Wahyu Bramantyo, Wisnu Aji Nugroho, Mohamad Ramdhani, Sigit Yuwono School of Electrical Engineering ,Telkom University Jl. Telekomunikasi No. 1, Dayeuhkolot Bandung 40257, Indonesia Abstract Water is a vital element needed by humans, the use of renewable energy is a concept that is being developed at this time, one of which is the flow of water, electricity generation that utilizes water flow that uses water turbines that are placed in a rapid pipe which then turns the turbine wheel and converts the rotational power into electricity to power an Internet-based water meter system of Things. This research aims to develop PDAM water meters which are currently still analog then developed into digital and can be monitored by the system and utilize the water flow to turn on the whole system. Researchers design a tool that utilizes water flow to activate and store power reserves in the system by utilizing a monitoring system that makes it easy for consumers to find out the amount of water consumption and costs to be paid at intervals of a certain period. This system includes turbines, charging circuits, microcontrollers, and water rate sensors that are developed using the Internet of Things (IoT) and a power supply system in the form of batteries. The battery will charge when the generator reaches a stable condition. Keywords: Renewable energy; PDAM; turbines; Internet of Things Share Link | Plain Format | Corresponding Author (Mohamad Ramdhani)

456	Electrical Engineering	ABS-1126
DESIGN DAN SIMULATION DC TO DC CONVERTER CIRCUITS WITH CLOSED LOOP CONTROL SYSTEM Purwandito Tulus Asmoro, Mindit Eriyadi, Aris Suryadi Politeknik Enjinering Indorama Abstract For more industrial application, need to change of constant DC Voltage to variable DC Voltage, or otherwise. DC Chopper change directly from DC to DC which is called as DC to DC Converter. Like a transformer, the Chopper can used to step down or to step up DC Voltage source. The DC power source or DC generator basicly will supply the energy to DC load. If Voltage from generator or source largest than load, so its need to add DC to DC Converter so that the Voltage can be stable and be supplied to load. Buck Converter be used to step down Voltage source if it overshoot against set point. The Mosfet switching in DC to DC circuits be controlled by PWM (Pulse Width Modulation) with Closed Loop Control System method. Keywords: DC to DC Converter, Buck Converter, PWM, Closed Loop Share Link | Plain Format | Corresponding Author (Purwandito Tulus Asmoro)

457	Electrical Engineering	ABS-104
Performance Comparison Analysis Sea Waves-Hydroelectric Power plant (PLTA-GL) with hydroelectric power plant-beach waves (PLTA-OP) as Renewable Energy Sources and Raw Water for Shrimp / Milkfish Ponds in Marunda Coast, North Jakarta Massus Subekti (a*), Muksin (b), Imam Arif Rahardjo (c) a), b), c) Electrical Engineering, Faculty of Engineering, Universitas Negeri Jakarta Jalan Rawamangun Muka, East Jakarta, Indonesia * masus[at]unj.ac.id Abstract This study conducted a comparative analysis of system performance between Sea Waves-Hydroelectric Power plant (PLTA-GL) and hydroelectric power plant-beach waves (PLTA-OP) as a source of renewable electrical energy as a supplier of raw water for shrimp ponds, milkfish and salt farmers by taking research sites on the coastal coast of Marunda Cilincing, North Jakarta. Using the comparative method by comparing the parameters of pump force, water inlet speed, pump inlet pressure, water inlet velocity, pump inlet pressure, water discharge, turbine power and electric power generated. Assuming a sea wave height of 2 meters, a 4 second wave period, linear waves and turbine efficiency of 0.88. The results showed that both systems are very suitable as a source of renewable energy generation and raw water for shrimp or milkfish ponds in north jakarta marunda beach. With the same system size, PLTA-GL generates more electricity than PLTA-OP. Increasing the capacity and availability of water in the PLTA-GL reservoir can be done by installing 3 pump units and 1 turbine generator unit. Increasing the power capacity of the PLTA-OP unit can be done by increasing the coverage of the trap unit. Keywords: Sea Waves-Hydroelectric Power plant, hydroelectric power plant-beach waves, Alternative energy, Power Plant, Renewable Energy Share Link | Plain Format | Corresponding Author (Massus Subekti)

458	Electrical Engineering	ABS-1129
MAPPING THE POTENTIAL ENERGY OF MICRO-HYDROELECTRIC POWER IN LIMBOTO WATERSHED Sardi Salim Electrical Engineering Department, Universitas Negeri Gorontalo Abstract Abstract The use of river water flow energy for electricity generation has been widely developed to meet the electricity needs of the community. Reality in the field indicates that most of the micro-hydro power plants that are built in the river flow cannot be relied upon to meet the electrical energy needs of the community, especially in remote areas. Many micro-hydro plants cannot operate for a long time and even have a damaged condition. This is because the construction of the power plant has not gone through the proper planning and assessment process of the potential of the river flow energy to be able to operate the power plant continuously. This study aims to find out the potential of the perennial river flow energy through the hydrological modeling technique. The energy of the perennial river flow can be approached due to the amount of rain discharge in the catchment area and the components of the watershed system that affect the water flow. To determine the value of river discharges, it is carried out through the analysis of the dependable flow of the river. The results showed that the electrical energy that can be produced in Alo River is 192.55 KW, in Bionga River is 136.45 KW, in Batulayar River is 408.67 KW, in Marisa River is 147.44 KW, and in Talumelito River is 81.22 KW. Keywords: energy, flow, river, microhydro, electric Share Link | Plain Format | Corresponding Author (Sardi Salim)

459	Electrical Engineering	ABS-618
The Effects of Rain Fall and Discharge Rate towards Hydro Electric Power Plant Productivity (Case Study at Kracak Sub Unit PLTA, Bogor Regency Jawa Barat) Suyitno Muslim, Imam Arif Rahardjo, Massus Subekti, Wildan Gunawan University State of Jakarta Abstract ABSTRACT This research is aimed to understand the effects of rain fall and discharge rate towards hydro electric power plant productivity (case study at Kracak Sub Unit PLTA, Bogor Regency Jawa Barat). Multiple regression tecnique analysis is used as research method with quantitative approach for describing the effects of rain fall and discharge rate towards hydro electric energy productivity. Based on Sub Unit PLTA Kracak during a highest down pour in June 2018 has gained electrical power about 173,583 kWh for 15,84 mm rain fall and the lowest rain fall in July 2018 is 0,86 mm only obtain 49,772 kWh electrical power with the average rain fall record in three stations is 8,9592 mm. Mean while, for the highest river discharge rate happened in February is 10,08 m3/detik which produce 198,296 kWh electrical power and the lowest in June that only gained 3,53 m3/detik which produce 49,772 kWh electrical power with the average of river discharge rate in 2018 is only 7,9858 m3/detik. The average of electrical power it self is only 156,0105 kWh for 8,9592 mm of rainfall and 7,9858 m3/detik river discharge rate record in 2018. The conclusion oh this research is the discharge rate in headwaters area is affected by rainfall intensity, but not necessarily affected to hydro electric energy productivity. Keywords: Effects, Rain Fall, Discharge Rate, Hydro Electric Power Plant, Productivity Share Link | Plain Format | Corresponding Author (Imam Arif Rahardjo)

460	Electrical Engineering	ABS-619
THE COMPARATION DROP VOLTAGE ANALYSIS IN POWER FLOW OF GANDUL SUBSTATION Imam Arif Rahardjo, Muhammad Rifan, Massus Subekti, Endiansyah Pradana University State of Jakarta Abstract ABSTRACT This study aims to determine the results of the drop voltage transformer 4 with 10 bus power at the Gandul Substation of PT. PLN (Persero) with MATLAB Power System Analysis Toolbox (PSAT) 2.1.7 and ETAP software 12.6. Data analysis technique used in this study is quantitative descriptive analysis method. Power flow simulation with MATLAB PSAT 2.1.7 software completed at 0.066 s with two iterations (first iteration shows Maximum Convergency Error 0.0011257 and second iteration shows Maximum Convergency Error 1.2621e-06), and ETAP 12.6 software complete in three iterations. Meanwhile, the results of voltage drop with MATLAB PSAT 2.1.7 software and ETAP 12.6 have a fairly small error. Almost every feeder has the same error. The conclusion in this study is that the results of the simulation of drop voltage with MATLAB Power System Analysis Toolbox 2.1.to ETAP 12.6 software has a difference of -0.02 with a percentage error of -0.1%. Each feeder has a small error. Keywords: Comparation, Drop Voltage, Analysis, Power Flow, Share Link | Plain Format | Corresponding Author (Imam Arif Rahardjo)

461	Electrical Engineering	ABS-108
Forecasting electrical energy needs PT. PLN (Persero) UP3 Sukabumi Uses Analytical, Econometrics, and Trends Methods Massus Subekti (a*), Imam Arif Rahardjo (b), Desitha Rosyanti (c) a), b), c) Electrical Engineering Faculty of Engineering, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta 13220, Indonesia * Correspondence : masus[at]unj.ac.id Abstract This research was conducted to determine the electrical energy needs of PT. PLN (Persero) UP3 Sukabumi uses analytical methods, econometrics and trends in 2019-2029. This research uses a combined method which is a method compiled by combining several models such as econometrics, analysis, and trends with a sectoral approach which is an approach by grouping electricity consumers into four sectors, namely the household, commercial, public, and industrial sectors. The results showed that the population rate rose 0.36% per year, the GRDP growth rate rose 6.26%; the number of electricity customers in the household sector rose 5.26% per year, the number of commercial electricity customers rose by 13.96% per year, the number of public sector electricity customers rose 7.58% per year, and the number of industrial sector electricity customers rose 3.53 % per year. it can be concluded that over the next 10 years the electricity demand will increase by 3,080.83 Gwh with an average growth of 10.69% per year. Keywords: PT. PLN (Persero) UP3 Sukabumi, Electricity Needs, Forecast, Analytical, Econometrics, and Trends Share Link | Plain Format | Corresponding Author (Massus Subekti)

462	Electrical Engineering	ABS-1135
Redesigning Public Street Lighting Using Photometric Method Cep Ubad Abdullah Universitas Pendidikan Indonesia Abstract Street lighting with LED technology is currently the main option of public lighting in almost every country. Even though LED technology is a less costly selection, there needs to be well planning in an attempt of acquiring high efficiency. Photometric approach was tested in this study in order to redesign the existing approach used in the street lighting in Indonesia. The redesigning process was carried out using a software namely DIALux on two different schemes; one with homogeneous luminaire and the other one with non-homogeneous luminaire. The results of this study showed that the most significant factors in redesigning street lighting covered types of the lamp, pole distance, pole height, and proper lighting angles which could affect the illumination value on both the main road and the sidewalks. In addition, it has also been proven that homogeneous approach using LED lamps lighting uniformity as well as optimum illumination. Therefore, it is recommended that further studies focus on LED selection from different brands and its impact to energy efficiency and life cycle of the lamps selected. Keywords: Street lighting, photometric method, homogeneous and non-homogeneous luminaire, LED technology Share Link | Plain Format | Corresponding Author (Cep Ubad Abdullah)

463	Electrical Engineering	ABS-368
BROKEN RAIL DETECTION SYSTEM USING LASER BEAM Ahmad Sugiana (a*), Fiky Y. Suratman (a), Krisna Muhammad Luthfi (a) a. Department of Electrical Engineering School of Electrical Engineering Telkom university Jl. Telekomunikasi Terusan Buah Batu Indonesia 40257, Bandung , Indonesia sugianaa[at]telkomuniversity.ac.id Abstract Recently, train contol system has emerged to impact railway technology in order to improve its services especially for passenger. To ensure a safe train operation, some devices are applied to control the infrastucture and rollingstock work safely such as track, signaling system, rollingstock and etc. Track is a main part of infrastructure that has to be monitored before train operation passes it. By operation times, the rail will decrease in quality due to several factors such as temperature and material durability. If the condition is not handled, the rail can be damaged. One type of rail damage that is often encountered is broken rails. If the rail breaks, the train passes through it can be derailed. To address this problem, periodical rail check need to be carried out. At present, railroad operators have a manual rail checking program by a railroad checking officers. In this research, a rail damage detection system will be developed using a laser beam. Lasers have been used for many years in various fields. The use of lasers is considered more sophisticated, efficient, and practical to use. This rail detection laser will be designed as a prototype. If this prototype successfully fulfills the criteria with 5 mm gap. It is supposed to be implemented directly to assist officers in checking the railroad tracks. Keywords: Insfrastructure, rollingstock, train control system, broken rail, laserbeam Share Link | Plain Format | Corresponding Author (Ahmad Sugiana)

464	Electrical Engineering	ABS-881
Alteration from Radial to Ring Power Distribution to Improve System Reliability: A Case Study Herry Winandi (a*), Budi Sudiarto (b*) a) Electrical Engineering Department, Universitas Indonesia Depok, Indonesia *herry.winandi81[at]ui.ac.id b) Electrical Engineering Department, Universitas Indonesia Depok, Indonesia *budi.sudiarto[at]ui.ac.id Abstract Outage of power system supplying oil and gas production facilities causes hundreds of barrel of oil equivalent loss per hour. Hence, there is a need to improve the supply continuity by e.g. altering the power distribution configuration from radial to ring. However, switching to ring configuration demands adjustment related to system capability in delivering higher current, taking longer route, or handling higher fault current. This study develops an approach to assess those requirements and benefits. The evaluation includes load flow, short circuit, protection relay coordination, and reliability analysis. This study aims to evaluate the existing system capability in applying ring configuration and recommend any required adjustment. This study also intends to estimate the reduction of outage duration. Overall, the existing radial power distribution system can be switched to ring configuration with several adjustments. The ring application offers 43.07 percent annual outage reduction from 17.322 to 9.861 hours annually. Keywords: Power distribution topology, load flow, short circuit, protection relay coordination, reliability Share Link | Plain Format | Corresponding Author (Herry Winandi)

465	Electrical Engineering	ABS-630
Understanding failure modes and Mitigations for Overhead HV Transmission Lines A.P. Purnomoadi, N.W. Priambodo, A.S. Surya, H.B. Tambunan, A.H. Syarief, K.M. Tofani, M. Ridwan PLN Research Institute Abstract Transmission lines are responsible to deliver the electricity from power plants to customers. In Indonesia, most of the High Voltage (HV) lines are the overhead lines (OHL) that use bare conductors. Cheaper installation cost in comparison to the Underground Cable (UGC) is the main reason why OHL was selected. However, OHL is more prone to disturbances from its surrounding. Over the years, lightnings were suspected as the main reasons of interruptions, followed by the vegetations and social encroachments along the lines. Besides, catastrophic failures have also been reported. These failures include tower collapsed, broken conductors, and broken insulators. These failures contribute to long interruptions, and high corrective costs. Therefore, should be avoided by correct design, operation, and maintenance strategies. This paper presents different triggers that may lead into interruptions based from historical data of over 800 High Voltage OHL in Java and Bali. Follows to that, the deterioration of OHL components and the possible inspections and diagnostics to avoid a catastrophic failure, are discussed. An insight into the risk-based maintenance strategy for overhead lines also provided in this paper. Keywords: Overhead Line; Transmission Line; Failure Mode; Risk-based Maintenance Share Link | Plain Format | Corresponding Author (A.P. Purnomoadi)

466	Electrical Engineering	ABS-893
Conceptual Design of Fuzzy Logic and IoT Based Monitoring and Controlling for Smart Aquaponics Rina Yuhasari (a) Akbar Riansyah (a) Muhammad Daffa Fadillah (a) Rina Mardiati (a*) Electrical Engineering, UIN Sunan Gunung Djati Bandung Abstract Nowadays, aquaponic system becomes an alternative in overcoming the lack of agricultural land. To produce more optimal aquaponic system, it is necessary to control and monitor the level of Electrical Conductivity and water pH in Auaponic system. This paper proposes a conceptual design to control and monitor the levels of Electrical Conductivity and pH in the aquaponic system. The EC and pH control system uses the fuzzy logic concept, using Internet of Things monitoring system. The input that used in Fuzzy Logic System is the Electrical Conductivity level and pH obtained from several sensors such as TDS meter, DS1820, and pH meter. The Output of the control system can automatically add electrical conductivity levels as nutrients of plants in the event of a nutrient deficiency. Automatic pH stabilization and temperature control are also based on Fuzzy logic. On the other hand, the Internet-based monitoring system is designed to provide notifications on the development of rates on the smart Akuaponic system. The expected results of the conceptual design of this smart akuaponic system are the stability of the electrical conductivity levels at 0.8-1.2 ms/CM, pH at 6.5-8, and temperatures at 26-29 °c, as well as the feeding of nutrients automatically works every 2 hours. Keywords: smart aquaponic, fuzzy logic, internet of things Share Link | Plain Format | Corresponding Author (Rina Mardiati)

467	Electrical Engineering	ABS-383
IMPLEMENTATION OF ULTRASONIC SENSOR AS A CHEMICAL PERCOL FLUID LEVEL CONTROL BASED ON ATMEGA 16 Akhmad Ahfas1, Dwi Hadidjaja2, Syamsudduha Syahrorini3, Jamaaluddin4 Electrical Engineering, Muhammadiyah University Sidoarjo, East Java, Indonesia Abstract The use of a transmitter level detects the liquid level of a chemical percol tank instead of a level switch, because the transmitter level provides accuracy in reading the value of the chemical fluid level. Ease of installing the transmitter level can be programmed and set up easily. The high price of a transmitter level causes entrepreneurs in the industrial world not to use the transmitter level as a reader or detector of chemical fluid levels in the production process. Based on these considerations, the chemical fluid level control device percol was made using an ultrasonic sensor, by implementing the Atmega16 microcontroller as a controller. Controlling the level of chemical percol liquid level using ultrasonic sensor HC-SR04 as a reader or level detector. Drivers to run the motor when filling the chemical fluid tank of percol are run manually or automatically. The overall test results of ultrasonic sensors work optimally according to program settings. The average value of the ultrasonic sensor error to detect the level of fluid per tank 1 is 0.125 cm while the tank 2 is 0.0625 cm. Keywords: Atmega16 Microcontroller, Chemical Percol, Fluid Level Control, Motor, Ultrasonic Sensor Share Link | Plain Format | Corresponding Author (Akhmad Ahfas)

468	Electrical Engineering	ABS-641
Modification of Ground Plane of Ultra-Wideband Double Layer Printed Antenna For Partial Discharge Detection Yuda Muhammad Hamdani (a*), Dani Usman (a), Aris Suryadi (a), Sarosa Castrena Abadi (a), Mindit Eriyadi (a) a) Teknologi Listrik, Politeknik Enjinering Indorama Kembang Kuning, Ubrug, Jatiluhur, Purwakarta 41152, Indonesia *yuda.muhammad[at]pei.ac.id Abstract Partial discharge is an electrical discharge phenomenon which connects partially to the insulation between the conductor and that occurs both on the surface of the conductor and inside the conductor. One of the PD measurements uses the UHF method, by measuring the waves generated by partial discharges. Antenna is a form of antenna that was developed from a square microstrip antenna with symmetrical T-shape rationing. Modifications are made by changing the dimensions of the Ground Plane in various sizes. The simulation results show that the implemented antenna for partial discharge detection has a large bandwidth ranging from 50MHz to 2.30GHz. Keywords: Partial Discharge ; Antenna ; Sensing Element Share Link | Plain Format | Corresponding Author (Yuda Hamdani)

469	Electrical Engineering	ABS-134
The effect of changing the type of lamp, lighting power and adding light points to the strength of the lighting in the Classroom and Reading Room of the Postgraduate Program at the Bung Hatta Building, Universitas Negeri Jakarta Massus Subekti 1*), Imam Arif Rahardjo 2), Eka Mardiana 3) 1), 2), 3) Electrical Engineering Faculty of Engineering, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta 13220, Indonesia * Correspondence : masus[at]unj.ac.id Abstract This research was conducted to determine the effect of changing the type of lamp, the addition of power and the number of lighting points to the strength of lighting in the Classroom and Reading Room of the Postgraduate Program at the Bung Hatta Building, Universitas Negeri Jakarta. This research was conducted because the room has strong lighting that is too large during the day and too low at night. This research uses a quantitative approach with a descriptive engineering method through three stages of engineering namely manual measurement using Luxmeter, manual calculations based on SNI standards and simulations. The results showed that when the treatment has not been done, the average value of the measured illumination and based on the simulation results in the reading room (6th floor) and lecture room (7th and 8th floor) do not meet SNI 03-6197: 2011 Standards. Through changing the type of lamp, the addition of power and the number of points there are 15 rooms that meet the standards with an average optimization presentation of 20% to 88%. Keywords: strong lighting, classroom, lamp type, lamp type. Share Link | Plain Format | Corresponding Author (Massus Subekti)

470	Electrical Engineering	ABS-137
Sea Wave Power Hybrid Power Generation Through Utilization of Wave and Wind Energy as Renewable Electric Energy Sources for Leading, Outermost and Disadvantaged Areas Massus Subekti 1*), Parjiman 2), Nur Hanifah 3) Imam Arif rahardjo 4) 1), 2), 3) Electrical Engineering Faculty of Engineering, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta 13220, Indonesia * Correspondence : masus[at]unj.ac.id Abstract This study carried out the design of sea wave power plants through the incorporation of vertical energy in the form of waves AUTOMASS unit (Automatic Maritime Safety System) with wind energy in the form of wind turbines. This system corrects the weakness of electrical energy fluctuations that occur in the AUTOMASS unit from previous studies as a result of wave fluctuations. using research and development methods through several studies and improvements. AUTOMASS consists of a buffer, piston and cylinder, intake and exit valves, reserviors, wind turbines and generators, while wind power consists of wind turbine units, gears and generators. Electrical energy generated by the second unit is combined in the control module. This research produces energy that is quite stable and is very suitable for use in the Frontier, Outermost and Disadvantaged Areas of Indonesia which has been struggling to get electricity supply Keywords: Hybrid sistem, wave energy, wind energy, leading, outermost and underdeveloped Share Link | Plain Format | Corresponding Author (Massus Subekti)

471	Electrical Engineering	ABS-138
Test Analysis of the Application of the Wave Power Hybrid Power Generation System in the Waters of the Pakis Muaran Gembong Beach, Bekasi, West Java Massus Subekti 1*), Parjiman 2), Nur Hanifah 3), Imam Arif Rahardjo 4) 1), 2), 3) Electrical Engineering Faculty of Engineering, Universitas Negeri Jakarta Jalan Rawamangun Muka, Jakarta 13220, Indonesia * Correspondence : masus[at]unj.ac.id Abstract This study conducted a Test on the Implementation of Sea Wave Power Hybrid Power Generation Systems in the Pakis Muaran Gembong Beach area of Bekasi, West Java. Hybrid system is carried out by combining vertical energy of ocean waves in the form of an AUTOMASS (Automatic Maritime Security System) unit with wind energy in the form of wind turbines as an effort to repair the weaknesses of electrical energy fluctuations that occur in the AUTOMASS unit from previous studies. AUTOMASS consists of buffers, pistons and cylinders, inlet and outgoing valves, reserviors, wind turbines and generators, while wind power consists of wind turbine units, gears and generators. Bekasi West Java into the system to analyze the stability of the generated voltage. The study results can be used as a reference type of wave characteristics that are most suitable for hybrid systems that are built Keywords: Hybrid systems, wave energy, wind energy, application test Share Link | Plain Format | Corresponding Author (Massus Subekti)

472	Electrical Engineering	ABS-408
Economic Impact of 300 KWp PV Rooftop Penetration on Soy Sauce Companies Muhamad Fahmi Amrillah(a*), Iwa Garniwa(b), Fajar Ari Kristianto(b), Eki Ahmad Zaki Hamidi(c) a) Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia Depok, Indonesia *muhamadfahmiamrillah[at]gmail.com, muhamad.fahmi82[at]ui.ac.id b) Department of Electrical Engineering, Faculty of Engineering, Universitas Indonesia Depok, Indonesia c) Department of Electrical Engineering UIN Sunan Gunung Djati Bandung Bandung, Indonesia Abstract One of the greatest potentials of renewable energy is solar energy which can be utilized to produce electricity. This was welcomed by the industry to utilize solar energy to produce electricity through a PV rooftop system. The advantage of PV rooftop in producing electrical energy is in terms of investment costs that can eliminate the land component because it utilizes the roof of an industrial building as a place for PV rooftop to produce electrical energy. Soy Sauce companies as one of the industries engaged in food can utilize a rooftop PV with a capacity of 300 KWp to produce electricity. The electrical energy produced by the PV rooftop can reduce 17.23% of the total electrical energy consumed by soy sauce companies in one day from PT. PLN electrical energy sources. Rooftop PV investment capacity of 300 KWp has a payback period of 12 years with an IRR value of 4% and a lifetime of using PV rooftop for 25 years. Keywords: Pay Back Period; PV Rooftop System; Renewable Energy; Solar Energy; Soy Sauce Companies. Share Link | Plain Format | Corresponding Author (Muhamad Fahmi Amrillah)

473	Electrical Engineering	ABS-923
ELECTRICITY AND ECONOMIC VALUATION OF SMART GRID SYSTEM ON NUSA PENIDA ELECTRICITY MARKET Efraimy Ruth, Nurmela, Yadi Mulyadi, Sudarmono Sasmono Department of Electrical Engineering Education, Faculty of Technology and Vocational Skills Education, Indonesia university of Education Abstract Smart Grid Technology is widely applied in various countries to reduce the basic cost of generation electricity in the region. The eksisting generation on Nusa Penida Island is only used PLTD, that leads the generation cost are relatively higher, with cost generally Rp 1198,44884 /KWh and more high cost for consumers, to overcome the problems of the system is applied a SG technology, by combined PLTD with photovoltaic (PV) penetration as renewable energy generation and battery energy storage system (BESS) on Nusa Penida grid. This studi is anylized the grid impact and economic value from this technology on Bali, with study case of Nusa Penida island. With used SG concept is Renewable Energy, Storage and Micro Grid Development (RESMG) as base concept of this study. By determined the scenario and conducting the calculation LCOE on PV penetration place, then choose the appropriate scenario there found 3 PV penetration site. With 3-PV penetration site, then calculated the LCOE, and the lower cost is Sakti with Level Cost of Electricity (LCOE) Rp 780,791591/KWh after PV-penetration on GH-Sakti. Keywords: Smart Grid (SG); Photvoltaic (PV); BESS; PLTHybrid; PLTD; Short Circuit (SC); Load Flow(LF); Reability. Share Link | Plain Format | Corresponding Author (Efraimy Ruth)

474	Electrical Engineering	ABS-412
Safety for Electric Shower Water Heater Installation in Indonesia A.P. Purnomoadi, N.W. Priambodo, A.S. Surya, H.B. Tambunan, D.R. Jintaka, K.M. Tofani, M. Ridwan PLN Research Institute Abstract Death casualties due to electrocution when showering using electric shower water heater have been reported. The cases included the use of either water heater with storage system or the instantaneous water heater. There are three factors that may contribute to the event, namely, the improper installation including the grounding and wiring systems, the equipment factor, and the human error. The first two factors are the most dominant ones. This paper presents scenarios when one may experience an electrocution during showering, the current safety regulations in Indonesia regarding the installation of the electric shower water heater, and the mitigations to avoid casualties. The additional of ELCB (Earth Leakage Circuit Breaker) may increase the safety factor as long as the protection earth wiring and grounding are properly installed. Keywords: Electric Shower Water Heater; Safety; ELCB; Earth Leakage Circuit Breaker; Electrocution Share Link | Plain Format | Corresponding Author (A.P. Purnomoadi)

475	Electrical Engineering	ABS-932
Intelligent Control System for High Efficiency Electric Vehicles Muhammad Rifan, Ermi Medias, Heri Firmansyah Universitas Negeri Jakarta Abstract Brush-less Direct Current (BLDC) motor drive systems are widely used in electric vehicles (EV). However, most EV control strategies only focus on BLDC motors without considering changes in different driving conditions. This paper propose an intelligent control strategy based on an intelligent neural network that is able to change control parameters based on changing driving conditions. This system has the ability to self-learning and adapt based on driving conditions. The simulation is carried out using the Electric Vehicle Drive Train model and run on the MATLAB-SIMULINK platform. The simulation results show that the smart control strategy designed shows very good efficiency with minimal errors and quickly adapts to different driving conditions. Keywords: Intelligent Control System, BLDC, Efficiency, Electric Vehicles Share Link | Plain Format | Corresponding Author (Muhammad Rifan)

476	Electrical Engineering	ABS-429
Controlling Temperature of Chicken Egg Incubator Based on Fuzzy Logic Control Mamdani Indri Nurfazri Lestari(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.ac.id Abstract Today, the development of technology is rapidly expanding into all fields, including in the field of animal husbandry. In an effort to produce more optimal animal production, the use of technology has begun to be used with various methods and approaches, one of which can be implemented in the process of hatching eggs in the field of chicken farming. The optimal process of hatching eggs is an important process to minimize the process of failure in hatching eggs. This study described a design of a chicken egg incubator system that the temperature was control using fuzzy logic control, so that the hatching process can run optimally. The input used in this fuzzy logic system are the temperature and humidity which obtained from the LM35 sensor and the DHT22 sensor. Meanwhile, the output of these fuzzy system is the speed of the fan and the light, in order to reach the temperature that needed for the incubator system. The simulation was done and the simulation results show that using a case example it is known that the temperature value is 44 ℃ and the humidity value is 42%, the PWM value is 168 Rpm. Based on this simulation we can concluded that the model of temperature control for this incubator is quite good and could be implemented to the real system. Keywords: Egg Incubator, Fuzzy Logic, Mamdani, Temperature Control. Share Link | Plain Format | Corresponding Author (Rina Mardiati)

477	Electrical Engineering	ABS-685
Ratio Analysis CT (Current Transformers) in Indirect Measurement Systems for Installed Power Sriwati, Agus Siswanto 1 Electrical Engineering Study Program, Universitas Islam Makassar, Jln. Perintis Kemerdekaan Km.10 Makassar 90245, Indonesia 2 Electrical Engineering Study Program, Faculty of Engineering, Universitas 17 Agustus 1945 Cirebon, Indonesia Abstract Distribution of electric power systems to consumers through various processes, namely generation, transmission and distribution of electricity. Large power customers will certainly flow (currents) large electricity anyway, therefore kWh (kilowatt-hour) meters require CT (current transformers). CT is a measurement tool that functions to transform large load currents into small currents according to the ratio so that it can be read by a kWh meter using an indirect measurement system. Indirect measurement is a measurement that requires tools. CT ratio error caused by saturation of CT and discrepancy of CT value attached with the CT value following the customers contracting power results in losses at PT. PLN (Persero), which affects the kWh meter as an indicator of billing because it reduces the cost of consumer electricity bills. To reduce these losses, it is necessary to calculate the CT ratio to the customer so that PT. PLN (Persero) did not experience a loss. The average loss ratio of installed CT is 373,6748 kWh. Examination of the CT ratio of large customers of 41.5-197 kVA (as many as +/- 100 customers) found 14 CT findings on 10 customers who have a CT current error limit of <-5%. The nominal value of kWh loss per month due to the CT saturation ratio is 3094.08 kWh. Keywords: CT, Indirect Measurement Systems, errors, losses, ratios Share Link | Plain Format | Corresponding Author (Sriwati Sriwati)

478	Electrical Engineering	ABS-430
Adaptive Underfrequency Load Shedding Design Based on Generation Lossing Estimation using Artificial Neural Network Method Joko Hartono, Dhandis Rito Jintaka, Kemas M Tofani, Muhammad Ridwan, Andreas P Purnomoadi PT PLN (Persero) Puslitbang Abstract Underfrequency relay is used to prevent the frequency instability because of losing generation by balancing the load with the supply. The approach of this paper is to design an adaptive underfrequency load shedding (AUFLS) model in power system simulation software by estimating the magnitude of losing generation using artificial neural network (ANN) furthermore the shedded loads will be obtained based on this value. The new england IEEE 39 bus system is used for this dynamic simulation, there are 10 generators that each outage frequency response simulations is used as training data for the ANN dataset. The analysis is showed by comparing the frequency response of the system without any load shedding methode, using tradisional 4 steps underfrequency load shedding and adaptive underfrequency load shedding. The results shows that the frequency response using adaptive underfrequency load shedding is the fastest method to stabilize the system after an outage Keywords: Frequency Stability, Artificial Neural Network (ANN), Estimation, Dynamic Simulation, Frequency, Magnitude of disturbance, Underfrequency Load Shedding Share Link | Plain Format | Corresponding Author (Joko Hartono)

479	Electrical Engineering	ABS-432
Optimal Sizing and Sensitivity Analysis of Hybrid Renewable Energy Systems: A case of Ur Island in Indonesia Indra Ardhanayudha Aditya, Siti Aisyah, Arionmaro Asi Simaremare PLN Research Institute Abstract This study presents the design optimization and sensitivity analysis of the hybrid renewable energy system (HRES) for Ur island in Indonesia. The Ur Island is a remote island where local residents unreachable by electrical network systems but has potential to utilize the solar Photovoltaic (PV) and wind energy. The analysis of the hybrid systems are modeling in the Hybrid Optimization Model for Electric Renewable (HOMER) to find out the most cost-effective configurations for electricity requirement of 234 kWh/day primary load with 25.6 kW peak load. The results show that system with the configuration of PV-Wind-Diesel-battery delivers the best optimal design for Ur island in terms of cost of energy (COE) and Total Net Present Cost (TNPC). In addition, the impact of solar radiation, wind speed, diesel price, O&M cost, investment cost and replacement cost are identified by carrying out the sensitivity analysis. Keywords: Optimization, HOMER, Cost of Energy (COE), Net Present Cost (NPC), sensitivity analysis, renewable energy Share Link | Plain Format | Corresponding Author (Indra Ardhanayudha Aditya Aditya)

480	Electrical Engineering	ABS-440
Risk Based Approach for Surge Arrester Replacement A.P. Purnomoadi, K.G.H. Mangunkusumo, D.R. Jintaka, K.M. Tofani, M. Ridwan PLN Research Institute Abstract Surge arrester is a critical component in tropical countries since the likelihood to have a lightning stroke in the transmission system is higher in comparison to those in sub tropics. Therefore, assuring the reliability of this component is important. However, the surge arresters are sometimes being overlooked during the replacement plan because of its insignificant price in comparison to the protected assets. People mostly just install and forget. This paper presents a methodology to replace the High Voltage (HV) and Extra High Voltage (EHV) surge arresters based on the risk of a failure. The statistical reliability curve based on lifetime assessment, the manufacturer-made, and the condition assessment based on 4955 resistive leakage currents define the likelihood of failure. While the consequences are based on the ENS (Energy Not Served) and type of served customers. The risk-based approach is beneficial for replacement prioritization when resources (budget, spares, workability) are limited. Keywords: Surge Arrester; Maintenance; Risk-based maintenance; Condition Assessment Share Link | Plain Format | Corresponding Author (A.P. Purnomoadi)

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