bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hybrid energy of Photovoltaic and Palm Oil Diesel for alternative electricity supply of Base Transceiver Station (BTS) on rural Area-South Sumatera
Authors: Basit A , Sudiarto B , Setiabudy R 
Published: March 2021

Abstract
The lack of electricity supply from PLN (The Indonesia State Electricity Enterprise) due to the remote and far geographical location, Some of the BTS rely on diesel generators as the main power plant. So, the cost of electricity generation in the BTS is very high because of the high cost of transportation of these fuels. Therefore, to make efficient use of diesel fuel requires a renewable energy-based power generation model by utilizing the natural potential around the area. This study to analyse the system models hybridization of Photovoltaic System with Palm oil Diesel (POD) to get power plants that have high reliability, low energy costs and low emissions for powering BTS in remote area located at a Sungai Ketupak Village of Ogan Komering Ilir-South Sumatera (Latitude 3o19.9’S and Longitude 105o38.9’E). The Hybrid Optimization Model for Electric Renewable Energy (HOMER) has been carried out to obtain an optimal design based on energy cost/kWh, annual operating costs, the daily loads demand, the NPV cost. The combination PV system and palm oil diesel will provide benefits for telecommunications companies in the savings for fuel generators. This system could also reduce gas emissions from hydrocarbon fuels. Therefore, the join of PV and palm oil diesel systems shows a good prospect of alternative energy for BTS tower energy sources.
Analysis of Knee Point Temperature (KPT) determination on High Capacity Low Sag (HCLS) conductors for optimizing the ampacity load and sag on the overhead transmission lines system
Authors: Prasetyo H , Sudiarto B , Setiabudy R 
Published: March 2021

Abstract
The modern overhead lines with High Capacity Low Sag (HCLS) conductors can be operated at higher current carrying capacity. The main advantage of HCLS conductors is the special design of operating conditions, which cause the transformation of the mechanical pull load from the conductors to the reinforcing core. This transformation is called “knee point temperature”. This study aims to determine the knee point temperature and the effect on sag HCLS conductors. The simulation will be conducted on the HCLS conductors, namely ACCC/TW LISBON (310), which stretches between a span of 100meters. The electrical loading of conductors is gradually giving until a temperature of 180oC is reached. From the simulation results, we can determine the knee point temperature of the ACCC/TW LISBON (310) conductor is around 60-62oC. The value of the sag after the knee point temperature tends to be stable even though the ampacity loading is increased.
Performance comparison analysis Sea Waves-Hydroelectric Power Plant (SW-HPP) with Beach Waves-Hydroelectric Power Plant (BW-HPP) as renewable energy sources and raw water for shrimp/milkfish ponds in Marunda Coast, North Jakarta
Authors: Subekti M , Muksin M , Rahardjo I A 
Published: March 2021

Abstract
This study conducted a comparative analysis of system performance between Sea Waves-Hydroelectric Power Plant (SW-HPP) and Beach Waves-Hydroelectric Power Plant (BW-HPP) as a source of renewable electrical energy as the source 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.
Techno – economic study of utilizing CPO as fuel replacement for existing diesel power plant
Authors: Simaremare A A , Cahyo N , Indrawan H 
Published: March 2021

Abstract
Indonesia as stated in General National Energy Plan (RUEN) aims to achieve 23% of new and renewable energy in its energy mix by 2025. One of the ways to achieve this goal is by replacing existing diesel power plant fuel from fossil based diesel to biofuel and crude palm oil or CPO. CPO is envisaged very potential fuel substitutes especially for low and medium speed diesel engine due to its simple process to acquire and availability in Indonesia. This study aims to evaluate the viability of CPO utilization as fuel replacement for low and medium speed diesel engine compared to high speed diesel from economic perspective. This study uses levelized cost of electricity (LCOE) calculation to determine equivalent CPO price compared to its respected diesel price taking into account technical considerations and project life time. The impact of CPO usage for energy production to the palm fruit farmer also briefly discussed. This study finds that CPO is economically viable to be used as diesel engine fuel replacement under certain technical and diesel price considerations. The continuity of the replacement project also plays important role in determining the economic feasibility of fuel replacement by CPO. Certain incentives may be needed to be passed on by the government to maintain the sustainability of the replacement project.
An entropy analysis of the Cirebon language script using the Ternary Huffman code algorithm
Authors: Kodir A , Fajar R , Awalluddin A S , Ruswandi U , Ismail N , Miharja D 
Published: March 2021

Abstract
Entropy is a statistical parameter that measures how much average information is generated for each symbol in a text. Each language usually has several important features that are hidden statistically and certain redundancy. These features can be utilized to form appropriate text compression tools for optimal use of resources. This study proposes an analysis of the entropy of the Cirebon language text for text compression using the Ternary Huffman Code algorithm. This entropy value then becomes the reference level of the Cirebon script compression level. The probability of each symbol in the Cirebon Regional Text is used to calculate the entropy value. The result shows the entropy of the Cirebon language script was 2.508 bits per symbol, with an expected code length of 2.565 bits per symbol. Estimated compression efficiency with Ternary Huffman Code is 97.77% and compression rate is 0.51308.
Implementation of ultrasonic sensor as a chemical percol fluid level control based on Atmega 16
Authors: Ahfas A , Hadidjaja D , Syahrorini S , Jamaaluddin J 
Published: March 2021

Abstract
The use of a transmitter level detects the liquid level of a chemical percolation 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 this background, the chemical fluid level control device was designed using an ultrasonic sensor, by implementing Atmega16 as a controller. Controlling the level of chemical percolation fluid level using an 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 optimum that is 75% of the 8 test data according to program settings. The average value of the ultrasonic sensor error to detect the level of percolating fluid in both tank 1 and tank 2 is 0.125 cm.
Safety for Electric Shower Water Heater installation in Indonesia
Authors: Purnomoadi A P , Priambodo N W , Surya A S , Tambunan H B , Jintaka D R , Tofani K M , Ridwan M 
Published: March 2021

Abstract
Death casualties due to electrocution when showering using electric shower water heater (ESWH) 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. 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 it protects the user from an electrical shock in shorter duration than the common Main Circuit Breaker (MCB). A successful ELCB depends also on the correct installation of protection earth wiring and grounding.
Adaptive Underfrequency Load Shedding design based on generation losing estimation using Artificial Neural Network method
Authors: Hartono J , Tofani K M , Jintaka D R , Ridwan M , Purnomoadi A P 
Published: March 2021

Abstract
Under Frequency Relay (UFR) is used to prevent the frequency instability of a generation outage by balancing the load with the supply. The approach of this paper is to design an Adaptive Under Frequency Load Shedding (AUFLS) model in power system simulation software by estimating the magnitude of losing generation using artificial neural network (ANN) based on the early response of frequency after the disturbance occurred then the shed loads will be obtained based on this value estimation. The New England IEEE 39 bus system is used for this dynamic simulation. There are three operation scenarios planned with different dispatches of the generators, each generator is simulated by removing it from the system then the frequency system response is used as training data for the ANN model. The analysis is performed by comparing the frequency response of the system using Conventional 4 Steps Under Frequency Relay Load Shedding (UFLS) and the Adaptive Under Frequency Load Shedding (AUFLS). The results show that the frequency response after disturbance using the Adaptive Under Frequency Load Shedding (AUFLS) revert to the initial frequency closer and faster than using Conventional 1 Steps Under Frequency Relay Load Shedding (UFLS).
Review of digital substation equipment and technical specification in Indonesia
Authors: Ridwan M , Tambunan H B , Mangunkusumo K G H , Habibie A S , Pramana P A A 
Published: March 2021

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. 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.
Performance evaluation of modified multi gap arrester
Authors: Priambodo N W , Harsono B B S D A , Habibie A S , Hartono J 
Published: March 2021

Abstract
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.
Voltage stress reduction for distribution line covered conductor
Authors: Pramana P A A , Surya A S , Mangunkusumo K G H , Tambunan H B , Jintaka D R , Tofani K M , Ridwan M 
Published: March 2021

Abstract
Interruptions due to vegetation frequently occur at the distribution line in Indonesia. Follows to that, the distribution utility decided to replace the bare conductor with the one-layer XLPE cable. However, new problems occurred mainly at the link between the XLPE cable and the post insulator on each of distribution pole. The high permittivity material of XLPE and the ceramic insulator enhance the local electric field that produces pinholes on cables. In the later phase, the pinholes become more extensive and if there is a lightning strike that causes a voltage that exceeds the Basic Insulation Level of the insulator, then the electric arc will flow from the conductor to the ground isolator through the pinhole. This paper proposed a novel design to cover the cable, including its accessories. Based on a simulation using a finite element analysis, the electric field stress is reduced by the following steps: 1. Add a semiconductor layer on the XLPE layer, 2. Replace the ceramic insulator with the polymer one, 3. Modify the binding between the cable and the post insulator by using a unique clamping method.
Technical and economical evaluation of distribution transformer with amorphous metal core in Indonesia
Authors: Harsono B B S D A , Hartono J , Priambodo N W , Tambunan H B , Jintaka D R , Tofani K M , Ridwan M 
Published: March 2021

Abstract
High efficiency electrical equipment usage is an alternative solution to support carbon emission reduction in Indonesia. In this research, new distribution transformer design using amorphous metal core (AMDT) was evaluated by conducting laboratory testing and field installation. According to the laboratory test result upon 4 samples, AMDT had 60.91 – 67.35% smaller no-load loss but 0.58 – 9.79% higher load loss compared to national standard requirement (although the load loss value of AMDT was within total losses tolerance). One AMDT sample failed during impulse test which should be followed up further by conducting insulation testing and design evaluation. Since the AMDT sample used 5-legged core design, the weight of the AMDT was heavier than conventional cold rolled grained oriented (CRGO) silicon steel transformer; thus, the construction planning and design should be re-evaluated for AMDT installation. According to total cost calculation based on life cycle approach by using obtained data and related assumptions, it was found that AMDT would potentially give higher economic benefit than conventional CRGO silicon steel transformer when the load factor (LF) is below 79% for 100 kVA AMDT, below 78% for 50 kVA AMDT, and below 68% for 25 kVA AMDT.
Integrated Internet of Things (IoT) technology device on smart home system with human posture recognition using kNN method
Authors: Siddiq M I , Wibawa I P D , Kallista M 
Published: March 2021

Abstract
IoT device technology is currently developing rapidly, for example in smart home systems that have several features including lighting, surveillance security, temperature control, water sensors, and smart electricity. IoT device consists of smart electricity integrated with human action recognition using sensor vision are developed in this work. In smart electricity system, we build some relays controlled by smartphone applications and web-based platforms. We can control the relays and monitor the voltage, current, and power used from electricity appliances that are connected to our IoT device. In human action recognition, we use a single RGB camera to capture some human poses into spatiotemporal sequences to get data for training. There are six poses for testing scenario, these poses will be clustered using kNN (k-Nearest Neighbor) method. Each human action that is recognized will be connected to an IoT device for controlling the switching mode on the relays in smart electricity system. The result in this experiment shows that the system successfully reads every single posture with quite good accuracy performance using confusion matrix.
Design and implementation of prototype smart plug at home automation based on bluetooth using Arduino Uno
Authors: Hamidi E A Z , Effendi M R , Syarifuddin F , Wildan M , Huda U N 
Published: March 2021

Abstract
Home automation is one of the simplify daily activities at home. Automation of the stop contact system, can make the switch operation be shortening. Arduino Uno is used as the main controller in a smart plug system. Server systems made wide the device. Bluetooth module HC-05 is used as a wireless transmission medium. The result tests got a maximum range of 17 meters with barrier and 20 meters in open space. Delay occurs with a time of 400ms. by conditioning on or off to take a trigger of contactor in a home.
Design and implementation of the quality of mineral water test equipment using fuzzy logic method based on Internet of Things
Authors: Kurniawan E , Sumaryo S , Budiman F , Happy A , Aprillia B S 
Published: March 2021

Abstract
Water is a chemical compound that is very important for living things on this earth. The function of mineral water for human life cannot be replaced by other compounds. To ensure that it can be used for needs, quality monitoring must be carried out continuously. This study aims at designing mineral water quality test equipment using the fuzzy logic algorithm method that is equipped with a pH sensor, TDS sensor, temperature sensor, LDR sensor, LCD, Wi-Fi module. The simulation results show that an average value of pH sensor of 8.5 - 12, TDS sensor of 300 - 350 ppm, sensor temperature of 22-25oC, and the resistance of the LDR of 110-170 Ohm sensor for daytime while the evenings of 920 - 970 Ohm. The several types of water tested was 5 areas around Bandung and Telkom University Dormitories. The accuracy of this tool reaches of 80%, it can be seen from the calibration results.
Mapping the potential energy of micro-hydroelectric power in Limboto watershed
Authors: Salim S 
Published: March 2021

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.
Development of electronic rubric to assess improvement of employability skills student
Authors: Subekti S , Ana A , Muktiarni M 
Published: March 2021

Abstract
This research is carried out on the basis of the need for assessment tools to assess employability skills. Assessment which made refer to the applicable competency standard and adjusted to the needs of each proficiency field. The urgency of this research is to design an electronic rubric evaluation tool for educators. This study aims to develop electronic rubric in measuring employability skills due to the condition which not every skills assessment uses standard assessment tools, it encourages researcher to develop assessment tools that can be used as the process of measuring employability skills by work based learning. The research method that used is Design Based Research to develop prototypes of performance evaluation tool or performance assessment. The design of performance assessment in this research is web based using SmartRubric platform. The SmartRubric application uses browser technology and is accessed through a computer network. Besides using a computer or laptop system on this application is also using mobile, such as mobile phones, smartphone, tablet PC, Mac, Android, BB and others, as long as the device has a browser application for internet access. The SmartRubric application has a program that is stored on the Server and sent via the internet and accessed through a browser interface, so that it can be accessed using a web browser through an internet network or intranet. The use of SmartRubric application through computer software that is coded in a programming which supports web-based software namely HTML, JavaScript, CSS, Ruby, Python, Php, Java and any other programming.
Implementation of portable mini wind power generator as renewable energy simulation media
Authors: Achmad F , Muslim S 
Published: March 2021

Abstract
This study aims to implement the portable mini wind power generator as simulation media, Indonesia as a country with two-thirds of its territory is the ocean, crowning the Indonesian nation as the world’s maritime axis. To face these challenges, the balance of technology and natural resources (oceans) is the responsibility of all Indonesian citizens, especially in the field of education which has a role to create and foster human resources. Vocational High Schools take an important role in creating skilled and competent students in their fields. The design functions to design the design of the system to be made, to sort out the functions and usefulness of the tool, as well as the components used so that there are no difficulties in making the system to be built. After the design is continued, the process of making and assembling tools. In the research implementation of Portable Mini Generator Wind Power as a simulation medium for alternative renewable electrical energy by making portable mini wind generator. Based on data from measurement and analysis results, it can be concluded that the working principle of portable mini wind power generators is to use wind as a mini generator drive, which in turn will result in a change in mechanical energy source motion into a renewable electrical energy source.