bluuebunny/crossref_metadata_2025 huggingface dataset:
RANCANG BANGUN APLIKASI RESERVASI SERVICE UNTUK BENGKEL SEPEDA MOTOR BERBASIS WEB
Authors: Widhiananda I Gusti Ngurah Agung , Arsa Suyadnya I Made , Oka Saputra Komang
Published: June 2019

Motorbike repair shops are one of the industries which provide services for repairs, tunings, or even providing availability of parts to the customer. Punctuality is one of the most important factor to every users that uses this kind of service. Nowadays, most of the repair shops provide several means to book and to make a reservation for most customer's intended services. But, they are done manually by the management, either by direct visits or by call. This will gradually become a tedious task and requires meticulous book keeping to track a huge numbers of reservations. This research was done as an attempt to develop a responsive web-based system, starting from its basic infrastructure analysis, built in PHP with standard MySQL database system. The result of this development is intended to cater and accommodate the needs of customers for reserving services ahead as well as to find the nearest, most suitable shops for their appointments automatically. All of this system functionalities are working as intended according to black box testing method.
SIMULASI PEREDAMAN DISTORSI HARMONISA MENGGUNAKAN FILTER AKTIF DAN ANALISIS RUGI-RUGI DAYA PADA SISTEM KELISTRIKAN DI HOTEL THE BENE KUTA
Authors: Agus Sudiatma Pratama I Nyoman , Rinas I Wayan , Ibi Weking Antonius
Published: June 2019

A non-linear load operation on a power system will generate harmonics. Operating non-linear loads on the simulated electrical system at the Bene Hotel Kuta created a harmonic current which resulted in power losses. In this study, the simulation used ETAP software, and determined the standard of THD (Total Harmonic Distortion) according to IEEE 519-2014, the standard maximum THDI value 5.0% and THDV maximum 5,0%. Compared the simulation results with the specified standards, installation of a high pass active filter, as well as power loss analysis before and after filter installation. THDI value of simulation result did not still meet the standard, with the average being 9.7%. The installation of a high pass active filter could reduce harmonic distortion with an average THDI value of 1.5% and a THDV value of 0.31%. The total power loss prior to installation of active filter was 153,119.8 Watt and after the installation it became 1,511.2 Watt. The decrease in filter values used 70% of the filter's maximum capability to obtain a more efficient filter, but it still met the specified THD standard. Total loss of power on electrical system was 11,885.5W.
ANALISIS PROPAGASI INDOOR WLAN 802.11g PADA GEDUNG DISHUBKOMINFO KABUPATEN BADUNG
Authors: Indra Prasetya AAN. Agung , Gunantara N. , Sudiarta P.K.
Published: June 2019

In practice the access point can not always cover the maximum range of distance due to signal wave propagation in the room, such as reflection, alteration, or scattering of signals. For the purpose of implementation optimization, this study aims to obtain characteristics of signal level quality and throughput at the Dishubkominfo Building of Badung Regency. The indoor propagation analysis of WLAN IEEE 802.11g is based on 3 models of measurement ie without barrier, wall barrier, and floor barrier. The result of the highest signal level measurement is -40 dBm, while the lowest signal level is -85 dBm. Maximum throughput measurement results 8.05 Mbps, from the maximum available bandwidth of 10 Mbps. While the coverage area based on testers using the software to adjust the floor plan on the building, almost in accordance with the calculation of signal level.
PENGGUNAAN PROPORTIONAL INTEGRAL DERIVATIVE ( PID ) CONTROLLER PADA FILTER AKTIF UNTUK MEREDAM HARMONISA AKIBAT BEBAN NON LINIER DI BALI NATIONAL GOLF RESORT
Authors: Widiarsana I Gusti Made , Rinas I Wayan , Arta Wijaya I Wayan
Published: June 2019

Bali National Golf Resort has a high level of non-linear load usage. A harmonic is emerged due to a high level of non-linear load usage which was the main problem on the quality of electric power. On the other hand, it is also lead to an adverse impact for the electric power system such as the wave form and voltage were not sinusoidal. Then, in order to reduce it, an active filter could be used as one of the best way. This research focused on the simulation of PID (Proportional Integral Derivate) Controller towards an active filter to reduce the harmonic and MATLAB R2013 software that applicated as the instrument. As the result,the usage of PID Controller on the active filter could reduce the THDi into 1.89% and THDv into 0.59 % as an average percentage at Bali National Golf Resort.
ANALISIS SETTING RELE OGS SEBAGAI SISTEM PENGAMAN TRANSFORMATOR 3 UNTUK MENJAGA KONTINYUITAS ALIRAN DAYA DI GARDU INDUK PESANGGARAN
Authors: Alit Wigunawan I Wayan , Dyana Arjana I Gede , Indra Partha Cok Gede
Published: June 2019

Transformer 3 of Pesanggaran Substation obtains additional power plants with a maximum power of 60 MW. Power generation is used to supply the load of feeders in Substation of Pesanggaran and also channeled to 150 kV transmission system at Substation of Pesanggaran through Transformator 3 to Substation of Nusa Dua to assist power supply at Nusa Dua Substation. If there is a feeders interruption in the Substation of Pesanggaran which causes the load of feeders to be disconnected, then the power from the generator that is flowed to the 150 kV system increases. Thus the Transformer 3 works heavier, resulting in the current and temperature of the transformer also increased. Increased temperatures in the transformer for long periods can result in damage and reduced lifetime of the transformer. From the problems then calculation of current and working time OGS and OCR as the Transformer 3 safety system. The result of calculation of OGS setting of phase1 is 1600 A with setting work time of 2 seconds, phase 2 is 1700 A with setting working time of 1,5 seconds and stage 3 of 1800 A with setting work time of 1 second. The OGS relay characteristic is definite. For OCR at 150 kV side, the current setting is 277 A and setting time is 1.36 seconds, while OCR setting at 20 kV side is obtained by setting current of 2078.4 A and setting time of 1.18 seconds with OCR Relay characteristic used is inverse.
RANCANG BANGUN APLIKASI KOMUNITAS MANCING BERBASIS ANDROID
Authors: Saputra Edo Halim , Arsa Suyadnya I Made , Oka Widyantara I Made
Published: June 2019

This research intends to build an application that can be a place for members of the fishing community. The application is built on three main modules: user management, spot fishing management, and discussion management. Applications built using java programming language with android platform this application also uses API (Application Programming Interface) built with PHP programming language as interface processing data to database. Application testing is done by black box method and usability software, with the test result stated that the three main modules are running well and deserve to be used to be a means of information exchange for members of the fishing community.
PROTOTYPE PENGUKURAN TINGGI DEBIT AIR PADA BENDUNG DENGAN MENGGUNAKAN SENSOR ULTRASONIK BERBASIS ARDUINO MEGA 2560
Authors: Jawas Hilmy , Wirastuti N.M.A.E.D. , Setiawan Widyadi
Published: June 2019

Prototype system for measuring the level of water debit on weir by using an Arduino mega 2560 based ultrasonic sensor. It is created for detecting flood system that works automatically by finding out the water level on the weir’s surface. This water surface level monitoring system is conducted by implementing an Arduino mega 2560 based ultrasonic system, which will compute the water level created at certain levels. This prototype device for measuring the water level on weir by using Arduino mega 2560 based ultrasonic sensor consists of Arduino Mega 2560, HC-SR04 Ultrasonic Sensor, 16 X 2 LCD, and Buzzer. Arduino serves to determine the sensor value and provides the output accordingly with the sensor measurement. HC-SR04 Sensor functions to read the water level from a distance of 2 cm to 300 cm, this water level would be displayed on the LCD and the sound from Buzzer is going to sound the alarm at an altitude of 16 cm to 45 cm.
UJI KEAMANAN KOMUNIKASI VOIP MENGGUNAKAN SISTEM KEAMANAN SRTP-TLS PADA JARINGAN NIRKABEL
Authors: Handayani Tri Febriana , Sudiarta Pande Ketut , Oka Widyantara I Made
Published: June 2019

VoIP is a technology used to communicate voice remotely and directly using data communication lines with TCP / IP protocol. But basically, VoIP communication does not guarantee data security when doing communication. A very important security system is added in VoIP communications to maintain the confidentiality of communication, so that communication can not be recorded and played back. To build a security when communicating VoIP, then in this study added an SRTP-TLS security system. The study was conducted on wireless networks by comparing the security of data communications when using the SRTP-TLS security system and without using a security system.Keywords: Wireless, Security System, VoIP
PERANCANGAN MODUL PEMBELAJARAN HURUF BRAILLE BERBASIS MIKROKONTROLER UNTUK MEMBANTU PROSES BELAJAR DISABILITAS NETRA
Authors: Padma Diana I Putu Agus , Putu Raka Agung I Gusti Agung , Rahardjo Pratolo
Published: June 2019

We design Braille-learning module based on microcontroller as a helping tool for Braille-learning process for people with vision disabillity. The main operating system used is Arduino ATMega 2560 as the input data processor and provide output commands according to planning. The result is a system consists of a push-button Keyboard for data input, DFPlayer mini for sound output and a LCD for character display. Braille-learning module can be used for 5.6 hours under standby keyboard module condtion and 5.04 hours in keyboard module condition suppressed with minimum or maximum mini DFPlayer volume.
LOAD BALANCING UNTUK PERBANDINGAN KINERJA VIRTUALISASI SERVER VMWARE DAN XEN SERVER
Authors: Primanata I Gede , Putra Sastra Nyoman , Wiharta Dewa Made
Published: June 2019

This study aims to compare VMware server virtualization technology and Xen server that simulates hardware into the software. In order to share loads can be balanced on both virtual servers, this research used HAproxy as Load Balancing which is implemented on Apache Web Server so performance from CPU usage side, memory and access speed from VMware and Xen server virtualization can be compared. By comparing these two models, it is expected to be used as a reference for selecting virtualization models for shared resource needs on one or more physical servers. From the results of testing in this study, it was found that the performance of VMware is better than Xen when viewed from the CPU usage. CPU usage in VMware is lower than Xen with 1.57% when handling one website and 1.58% when handling two websites. In terms of memory usage Xen Server is more efficient in memory usage when compared to VMware, Xen is more efficient memory of 29.11% and 34.84% for handling one and two websites when compared to VMware. While in terms of data access speed on Xen faster than VMware, which is about 42,132 Kbps.
ANALISIS PEMASANGAN FILTER PASIF DAN AKTIF TERHADAP KANDUNGAN HARMONISA DAN RUGI-RUGI DAYA GARDU DISTRIBUSI KA 2085 DI PT. PLN (Persero) DISTRIBUSI BALI RAYON MENGWI
Authors: Budi Aryawan I Putu , Ibi Weking Antonius , Rinas I Wayan
Published: June 2019

Operation of nonlinear loads can cause harmonic distortion in the voltage and current waveforms that result in abnormal electrical system condition. Content THD (Total Harmonics Distortion) an excess flow can cause power quality systems become worse, thus causing the system power factor is lower. Active filter and Passive filter which aims to reduce harmonics that arise. Analysis THD simulation and measurement results in accordance with IEEE 519-2014 and analysis designing of a passive filter and active filter is right to suppress harmonic distortion. The analysis shows that the installation of active filters causes the current and voltage THD contents to comply with the standard IEEE 519-2014 standards is ?12% and 5%. The use of passive and active filters can reduce THDi content to 8.45% and 3.07%, respectively. While for THDv decreased respectively to 3.68% and 3.45% which already meet the IEEE 519-2014 standards. Power losses decreased respectively to 4.36 kW and 3.86 kW. Installation of active filters is better for reducing THD (Total Harmonics Distortion) and power losses in KA 2085 transformers.
STUDI KOORDINASI KERJA RELE DIFERENSIAL DAN RELE RESTRICTED EARTH FAULT SETELAH UPRATING PADA TRANSFORMATOR II DI GI KAPAL
Authors: Dwi Cahyadi Jaya I Made , Dyana Arjana I Gede , Maharta Pemayun A.A Gede
Published: June 2019

The differential relay on the power transformer II in the Kapal Substation has a sensitivity setting of 30% to the nominal current of winding. Fault current that occurs below setting is not detected because the fault current has not reached the set limit. To overcome the fault current it is equipped with REF relay that has sensitivity below 30%. The analysis was performed by calculation method according to the relay setting manual. The results of sensitivity setting of REF relay is 382.75 A or fault point at 22.09% of the transformer winding, while the differential relay is 519.6 A or fault point at 30% of the transformer winding. The calculation result shows that the first to work is the REF relay than the differential relay. So the fault on the transformer winding is overcome by the REF relay.
ANALISIS KEANDALAN PADA PENYULANG ARJUNA DENGAN TERPASANGNYA RECLOSER DOUBLE SIX MENGGUNAKAN METODE SECTION TECHNIQUE
Authors: Adi Wicaksana I Ketut , Rinas I Wayan , Arta Wijaya I Wayan
Published: June 2019

Penyulang Arjuna is a medium voltage Network in supply from GI Pemecutan Kelod power with a capacity of 60 MVA, and channel length 10,202 km. Before mounted Recloser Double Six, the Reliability Index Penyulang Arjuna 0,4001 SAIFI value times/ customer/year, and the value of SAIDI 3,9355 hours/customers/year. Penyulang Arjuna never had 10 times the trip in the year 2015, thus affecting the level of reliability. To tackle these problems, in doing the installation of Recloser Double Six. Reliability analysis using the method of Section Technique. The results of the analysis after the installation of the Recloser Double Six is the value of SAIFI 0,2240 times/customer/year, and the value of SAIDI 2,0714 hours/ customers/year. With the declining value of SAIFI and SAIDI after mounting the Recloser Double Six, increased reliability and meet the standards of reliability index SAIFI of 3,2 times/year and SAIDI, amounting to 21 hours/year corresponding SPLN No. 68-2 years 1986.
ANALISIS KETIDAKSEIMBANGAN BEBAN PADA GARDU DISTRIBUSI KA 2085 DI PT. PLN (Persero) DISTRIBUSI BALI RAYON MENGWI BADUNG
Authors: Suputra R. , Weking A. I. , Rinas W.
Published: June 2019

The difference in the value of the current flowing in each phase conductor in a power distribution network, causes an unbalanced state. The unbalanced state of a power grid will result in an increase in power losses. This study is conducted by analyzing balanced state power losses and unbalanced state under peak load conditions at JTR and SR of K8585 distribution relay, unbalance burden on secondary distribution network KA 2085 has resulted in the loss of load-balanced power of peak load time of 0.104 kW with a loss-loss prosenase of 0.33%. While the losses for unbalanced load peak load time of 0.211 kW with a percentage loss of 0.69%.
ANALISIS UNJUK KERJA ZERO FORCING EQUALIZER PADA SISTEM OFDM MIMO
Authors: Prayitno R. A. , Wirastuti N.M.A.E.D. , Hartawan I.G.A.K.D.D.
Published: June 2019

Wireless network is one of the most important things in the development of telecommunication. However, the existing wireless technology has not been able to efficiently create a very high data rate because it was very sensitive to fading. Therefore, Orthogonal Frequency Division Multiplexing (OFDM) technology combined with MIMO (Multiple Input Multiple Output) transceiver system was used to gain more diversity and bandwidth efficiency. The propagation performed on the OFDM MIMO system was multipath propagation. To reduce Intersymbol Interference (ISI) was used Zero Forcing (ZF) equalizer which works by combining channel response and equalizer response itself to eliminate ISI. This study aims to determine the effect of Zero Forcing Equalizer on OFDM MIMO system using rayleigh fading channel and compared the result with OFDM MIMO STBC system. The research method used was simulation using MatLab R2015a. The simulation results showed that the performance of OFDM MIMO ZF system was worse than OFDM MIMO STBC system i.e BER vs EbNo simulation, eye diagram simulation, and constellation diagram simulation. The OFDM MIMO ZF system was required an Eb / No value more than 25 dB to achieve BER 10-4 while the OFDM MIMO STBC system only required an Eb / No value of 10.5 dB to achieve BER 10-4. The eye pattern generated by the OFDM MIMO ZF system was more closed and the dispersion of constellation signals away from the ideal point while OFDM MIMO STBC system displayed a more open eye pattern and the dispersion of its constellation signal closer to the ideal point. It indicated more ISI occurs in the OFDM MIMO ZF system than that in OFDM MIMO STBC system.
SISTEM PAKAR DETEKSI KERUSAKAN HARDWARE HANDPHONE BERBASIS DESKTOP
Authors: Ananta Eka Lilla , Jasa Lie , Arya Mertasana Putu
Published: June 2019

Expert System to Detection Damage of Handphone Hardware Based Desktop Based is an application used to obtain a solution in overcoming damage to mobile phones. During this time people have difficulty when faced with obstacles and damage that occurred on their mobile phone. Interaction model between system and user using question and answer model, and have knowledge base system for Knowledge Engineer in order to add new knowledge. This system used backward chainning method. Tree diagram that are modeled on the rules of the knowledge base are stored in the MySQL database and in the making of the system using the Visual Basic 6.0 programming language. The use of backward chainning method can help the user to get mobile damage solution, the solution has been obtained can give the user a knowledge of damage to his mobile phone.
PEMERATAAN BEBAN PADA GARDU KD 056 PENYULANG TABANAN PT PLN (PERSERO) DISTRIBUSI BALI AREA BALI SELATAN
Authors: Agus Semara Putra I Putu , Wijaya I Ketut , Mataram I Made
Published: June 2019

Load balancing is a routine done by PLN to manage a distribution substation. It is done on Peak Load Time (WBP) only. Initial load measurements and load data on a distribution transformer need to be done for balancing as input of simulation software. The load imbalance in a power distribution system is due to an imbalance in single phase loads in the R, S and T phases in low voltage networks due to the imbalance of the load the current in the neutral transformer arises. The current flowing in the neutral of the transformer causes losses, i.e. losses due to neutral currents in the neutral conductor of transformers and losses due to neutral currents flowing to the ground. In this research load equalization in substation KD 056 was done by making a simulation on the ETAP program by measuring the value of the voltage on the KD 056 substation. The result of load balancing in KD 056 substation with the simulation ETAP program i.e. the voltage drop obtained from the percentage of KD 056 substation after being balanced by voltage drop on phase R which decreased from 7.30% to 1.36% from the 219VA source voltage. Once the KD 056 substation is balanced, it can lower the voltage drop and power losses, thus the system voltage meets the standards of PLN.
AUGMENTED REALITY BERBASIS ANDROID UNTUK PENGENALAN PERALATAN LABORATORIUM
Authors: Arya Wiratama I Kadek , Care Khrisne Duman , Sudarma Made
Published: June 2019

To gift a chance to students, lab learning is a learning process that supervised practical application with practical tools of a previously studied theory. Lack of lab clerk and time, causing lack of understanding of using tools when practical process. This study aims to assist the introduction phase of practicum tools, with Augmented reality technology, built on unity3D, Vuforia and blender with marker in the form of Augmented reality Book (AR book). From test refound that marker detection at best performance when marker is build at A4 paper size with color information and maximum of 3 closed marker area. Testing with System Usability Scale tested by Electrical Engineering Study Program students got best score at statement point 1,7 and 9
ANALISIS HASIL DRIVE TEST MENGGUNAKAN SOFTWARE GENEX PROBE DAN GENEX ASSISTANT PADA JARINGAN LTE
Authors: Putra S.G.Y.P. , Sudiarta P.K. , Sukadarmika G.
Published: June 2019

Pengimplementasian Long Term Evolution (LTE) di Bali mengalami kendala terutama dalam menjaga performansi jaringan yang diakibatkan oleh lonjakan data yang semakin meningkat dan kualitas coverage yang kurang maksimal. Maka perlu dilakukan pemeliharaan jaringan untuk mengetahui kualitas dari suatu jaringan yang dapat dilakukan melalui pengamatan secara real di lapangan dengan pengukuran parameter 4G LTE pada suatu wilayah yang belum optimal. Metode yang digunakan adalah dengan melakukan Drive Test menggunakan software GENEX Probe dan analisa hasil drive test menggunakan software GENEX Assistant. Adapun parameter yang diukur antara lain RSRP, SINR, RSSI, RSRQ, CQI, PCI dan PDCP Throughput yang kemudian dibandingkan dengan standar KPI XL. Hasil dan analisa diperoleh nilai RSRP sebesar 93,36% > -105 dBm, SINR sebesar 91,14% > 3 dB, PDCP DL Throughput sebesar 92,18% > 5 Mbps dan PDCP UL Throughput sebesar 88,73% > 3 Mbps yang belum memenuhi standar KPI XL sebesar 95% diakibatkan oleh faktor variasi obstacle sehingga terjadi area bad spot pada beberapa titik wilayah. Optimalisasi yang dilakukan menggunakan metode mekanikal tilt dengan mengubah tilt antena dari 20 menjadi 30 pada area bad spot menyebabkan peningkatan performansi RSRP sebesar 3,49%, SINR sebesar 5,91%, PDCP Download Throughput sebesar 4,7% dan PDCP Upload Throughput sebesar 10,73% dari standar Key Performance Indicator (KPI) XL.
STUDI ANALISIS KEMAMPUAN PENYEDIAAN SUPLAI DAYA AKIBAT PENINGKATAN BEBAN DI GARDU INDUK NUSA DUA
Authors: Indra Pratiwi Nur Ayu Puspita , Dyana Arjana I Gede , Ibi Weking Antonius
Published: June 2019

The area of South Bali is a tourist attraction that has many hotel buildings, villas, and tourism sector as well as a venue for the implementation of National and International events. Causing the burden on the Nusa Dua Main Entity will increase. Along with the load development, Nusa Dua Substation must be able to supply from GIS Airport and GIS Pesanggaran. Forecast load using linear regression to obtain the value of the development of the transformer load and power supply up to 5 years.The calculation of the growth rate of the transformer load of the Nusa Dua Substation Transformer is 8.9% per year, and the calculation of 2018 in Transformer 1 is 113.38A Trans-former 2 about 124.3A, and the Transformer 3 is 137.09A. The calculation results of the growth rate of power supply through the transmission of 150 Kv to the Nusa Dua Substation is 179,612A supplied from GIS airport, and 238.32A from GIS Pesanggaran. The difference between load and power supply in 2018 is 18.53A (0.430%) of GIS Airport and 24.53A (0.570%) of GIS Pesanggaran. Transformer 3 in 2025 is not capable of carrying the load, Transformer 2 can not loads in 2026, and Transformer 1 is not able to the burden in 2027. So that required the addition of new Transformer or construction of new substation in the area of increasing load.Keywords: growth rate, power supply, transformer.
RANCANG BANGUN MONITORING ENERGI LISTRIK MENGGUNAKAN SMS BERBASIS MIKROKONTROLER ATMEGA328
Authors: Gusti Ramadhianti Raden Ajeng , Indra Partha Ir. Cok Gede , Raka Agung I Gusti Agung Pt
Published: June 2019

Customer PT. PLN (Persero) has been getting prepaid and postpaid electric service programs, on postpaid electricity PT. PLN is still using conventional ways to monitor the electricity consumption of its customers. PLN officers must record meters, calculate and publish accounts to be paid by customers. In this study using electrical energy monitoring system using SMS that can measure and monitor the use of electrical energy in real time, using the method of direct measurement. Results from the current sensor readings and voltage sensors will be forwarded to the microcontroller to be converted into the amount of electrical energy consumption and the amount of payment in accordance with tariffs that have been determined PLN. The research was conducted in Basic Laboratory of Electrical Engineering, Laboratory of Energy Conversion, Laboratory of Workshop & Electrical Installation, Electrical Engineering Study Program, Faculty of Engineering, Udayana University.
RANCANG BANGUN MONITORING DAN PENYIMPANAN NILAI DAYA LISTRIK SECARA REAL TIME PADA BASIS DATA
Authors: Bayu Wiranatha I Dewa Gde , Indra Partha Cok Gede , Setiawan Widyadi
Published: June 2019

Hotel management to monitor the energy to know the electrical energy consumption at the hotel. Energy monitoring is carried out in order to achieve the efficient use of electrical energy, for accurate energy monitoring requires a tool that can monitor the power consumption in real time and store on digital media or database so easy to access. Data stored on the database using the help of microcontroller and Ethernet Shiled connected to the LAN network. The sensors used in this research are voltage down 220VAC: 9VAC and current sensors with maximum current capacity of 100 A. The result of data recording is the highest current sensor deviation of 2.4% and the highest voltage sensor deviation is 0.4%.
Rancang Bangun Kapasitor Bank Otomatis Berbasis Mikrokontroler ATmega 328P Untuk Perbaikan Faktor Daya
Authors: Angga Juliantara Putu , Arta Wijaya I Wayan , Indra Partha Cok Gede
Published: June 2019

Inductive load with low power factor has led to the greater load current so that it is required a power factor improvement. Improvement of power factor in inductive load can be carried out by installing capacitor according to required proportion. Installation of capacitors can be used in parallel or series to electric source.The method of making design is divided into two parts, namely, the first is the designing of hardware and the second is the designing of the software. The designing of hardware consists of designing the power supply circuit, driver relay circuit, LCD circuit, minimum system circuit of ATmega 328P, capacitor bank circuit, current sensor circuit and voltage sensor circuit. The sensors used in this study were a non-invasive type SCT013-010 current sensor and a voltage sensor of a 500 mA type zero transformer. The design of software was in the form of work program tools that use the application of Arduino IDE. LCD displays the readout values of voltage, load current, active power, apparent power, reactive power and power factor. The ATmega 328P microcontroller processes data and determines the working relay so that the purpose of power factor value by cos phi ? 0.85 is achieved. The results achieved in this research is the design of automatic bank capacitor based on microcontroller of ATmega 328P can improve power factor by conducting injection capacitor to raise the power factor value according to PLN standard by cos phi ? 0.85 by connecting capacitor to the source of PLN paralleled by a single phase inductive load.
PROTOTIPE MOBILE STATION UNTUK PEREKAMAN KANDUNGAN UDARA
Authors: Bella Gusti Ketut , Putra Sastra Nyoman , Diafari Djuni Hartawan I G. A. K.
Published: June 2019

This study aims to monitor the air quality of Denpasar city with mobile station that can transmit air content information in mobile and real time. This mobile station was built using Wemos D1 Mini Board which is a small wifi board based on ESP8266. Information sent via the Wemos D1 board is information obtained from sensors MQ-7 and MQ-135 and DHT11. DHT11, MQ-7 and MQ-135 sensors can detect the temperature, CO and NH3 gas, NOx, alcohol, benzene, smoke and CO2. Information obtained from the sensors will be posted on a website so that people can know the level of air pollution in the city of Denpasar. This developed monitoring system has successfully displayed data in the form of a folder on the web server.
Analisis Pengaruh Harmonisa terhadap Rugi-Rugi Daya pada Sistem Tegangan Rendah dan Transformator GR088 di Penyulang Menjangan
Authors: Afif Salim , Sukerayasa I W. , Ariastina W. G.
Published: June 2019

Menjangan feeder is a medium-voltage network system which distributes electricity throughout Gilimanuk and some areas in Buleleng. It has 69 distribution substations, which one of them, substation GR088, contributes to the highest value of the total harmonic distortion (THDi). In this research, the effect of harmonic distortions on losses at low voltage system of substation GR088 will be evaluated.The method used in this study is direct measurement of harmonic distortions at each low-voltage costumer whose electricity is generated by substation GR088 at Menjangan Feeder. Software is also used to perform harmonic load flow analysis and simulations. The total value of losses on transformer and low voltage system of substation GR088 Menjangan feeder, in a no-harmonic condition is 1481,7 Watt. On under-harmonic condition, the total value of losses is 1552,5 Watt. Therefore there is a 70,8 Watt difference between the two conditions. At this case, beside the heat created by the harmonic distortion that can affect the performance of transformers, it also cause a quite great value of losses, which is 1,7 kWh per day, or approximately 620 kWh per year. It means the harmonic distortion in substation GR088 can cause PT PLN (Persero) lose Rp.910.018,8 per year.
APLIKASI PRAKIRAAN CUACA WILAYAH BALI BERBASIS ANDROID
Authors: Wipradnyana Pande Gede , Arsa Suyadnya I Made , Ary Esta Dewi Wirastuti Ni Made
Published: June 2019

Weather forecast information is very important for tourism in Indonesia, especially Bali as one of the main tourist destinations. That information must be easily accessible by the users, as one of them through a mobile phone. In this research developed an application to showing the city weather forecast information and area tourist weather forecast information in Bali through mobile devices based on android operating system. The data sourced from Indonesian Agency for Meteorological, Climatological and Geophysics (BMKG). Generally, the system is divided into two parts, such as the server and client (user). Admin created in the form of web server by using HTML, PHP and JavaScript that used for the management of weather forecast data and convert data from Indonesian Agency for Meteorological, Climatological and Geophysics (BMKG), while on the client side is an application based on adroid to access the weather forecast data. In the design of the application, the planning begins with the analysis of system requirements, the implementation of coding until testing applications. The result of this research is an application of the city weather forecast information and area tourist weather forecast information in Bali which can be displayed on the mobile devices based on android operating system. Based on the result of the application testing with black box method overall funcional application has been running well.
ANALISIS PENAMBAHAN TRANSFORMATOR SISIPAN UNTUK MENGATASI OVERLOAD PADATRANSFORMATOR DB0244 DI PENYULANG SEBELANGA
Authors: Wahyudi Widiatmika Kadek , Arta Wijaya I Wayan , Setiawan I Nyoman
Published: June 2019

Penyulang Sebelanga berada di wilayah PT.PLN (Persero) Area Bali Selatan yang disuplai oleh Gardu Induk Pemecutan Kelod dengan kapasitas penyulang sebesar 280 A. Penyulang Sebelanga mensuplai tranformator DB0244 yang terbebani sebesar 103,4 % dengan kapasitas 250 kVA. Standarisasi pembebanan untuk sebuah transformator adalah sebesar 80% dari kapasitas transformator. Solusi untuk mengatasi permasalahan ini adalah dengan melakukan pemasangan transformator sisipan yang bertujuan untuk membagi beban dari transformator DB0244. Berdasarkan data PT. PLN (Persero) Area Bali Selatan tahun 2017 peningkatan penggunanan energi listrik di kota Denpasar setiap tahunnya adalah sebesar 8,3%. Maka dengan menggunakan transformator sisipan yang berkapasitas 250 kVA, dimana persentase pembebanan awal sebesar 26,8% akan dapat melayani peningkatan penggunaan energi listrik selama lima tahun kedepan dengan total persentase pembebanan setelah lima tahun adalah sebesar 68,3%.
Aplikasi Sistem Pakar Berbasis Instant Messenger Untuk Diagnosa Awal Penyakit Ginjal
Authors: Rizki Arifianto Wahyu , Arsa Suyadnya I Made , Sudarma I Made
Published: June 2019

In Indonesia, the number of people who dead from suffered kidney disease has increasing. It’shappens because many people has less knowledge about the early symptoms of this disease. Kidney is one of the important organ in human body, which’s it performs to filtrating excess salt, water, and acid. Information technology utilization could be a great solution for this case. Build an expert system application based on instant messenger for early diagnose check of kidney disease is expect to do the initial diagnose process to be faster and could engage more people who curious about this disease. The system method that was used in this research is forward chaining method who based on multiplatforms using Telegram instant messanger application. This application could solves the problem which is it application can displaying the diagnosis result quickly and accurately based on the symptoms that will be asked by the system. In black box testing, this application has functions that have been successful. And based on the results of usabilty scale system testing (SUS), obtained ascore of 78 which means this application can run well on Telegram Messaging.
Studi Perbandingan Jaringan Optik Eksisting dengan Gigabit Passive Optical Network (GPON) di Kampus Universitas Udayana Bukit Jimbaran
Authors: Yuda Pramana Putra I Putu , Sudiarta Pande Ketut , Sukadarmika Gede
Published: June 2019

The purpose of this study is to compare the existing optical network conditions that use point to point technology with GPON network designed for Udayana University campuses area in Bukit Jimbaran Bali. The Existing optical network is currently able to serve only 14 buildings from 77 existing productive buildings due to the limited number of available optical cores.. It means in order to connect each building at the campuses area, it is required much more optical fiber. Alternatively is using Gigabit Passive Optical Network (GPON) technology. This research was conducted by analyzing the condition of the existing optical network and designing the GPON network. Here are compared some network feasibility parameters ie Link Power Budget, Rise Time Budget and Bit Error Rate. Then compare the use of cores, the number of subscribers as well as device estimation and transmission costs. The study found that to connect all of the buildings are GPON configuration required only 22 optical cores, compared to 154 cores for eksisting network designs. However, the GPON design has lower network quality but is simpler and much more economical if it is implemented for a wide network.
PERENCANAAN SETTING PENGAMAN SALURAN UDARA TEGANGAN TINGGI 150 KV DENGAN DIBANGUNNYA GIS TANAH LOT
Authors: Wanda Ariesta Anak Agung Ngurah , Dyana Arjana I Gede , Indra Partha Tjok Gede
Published: June 2019

In an effort to increase electricity supply PT PLN (Persero) build GIS Tanah Lot in Nyitdah Village Tabanan regency. The new GIS development makes the network transmission system High Voltage Air Line 150 kV changed. Changes in this transmission system impact on the channel safety settings due to changes in transmission length and impedance value. Prior to the analysis of the impedance setting, the Distance Relay Distance Zone with current, working time and OCR Relay coordination (Over Current Relay) firstly analyzes short circuit flows two phases and three symmetric phases using ETAP PowerStation program. After calculation of distance relation setting, the value of channel impedance in Tanah Lot GIS is 2,4 + j 6,96 ? with Zone 1 setting (80%): 0,200 + j 0,588 ?, Zone 2 (120%): 0,30 + j 0.882 ?, and Zone 3 (220%): 0.68 + j 2.30 ?. OCR (Over Current Relay) release time setting is indicated by releasing delay (tD>) for Tanah Lot GIS - Antosari and Tanah Lot GIS - The vessel has a value of 0.48 with an actual working time release of 1.134 seconds.
ANALISIS KOORDINASI RELAY ARUS LEBIH (OCR) DAN RECLOSER PADA SISTEM EKSISTING PENYULANG BUKIT JATI
Authors: Wijana Wayan , Wijaya I Ketut , Mataram I Made
Published: June 2019

Protection systems play an important role to maintain the reliability of distribution line. Over current relay (OCR) is one of the equipments used as a protection line of 20 kV distribution. Feeder of Bukit Jati is equipped over current protection relay equipment installed in Recloser of Banda and relay in the substation feeder. Based on the data of PT. PLN (Persero) APD Bali, there are 5 time-short circuit disorders which one of them tripped the Bukit Jati feeder. Problems over current relay coordination failures can be overcome by analyzing the coordination of protection systems in the feeder of Bukit Jati. The analysis was done by recalculating the over current relay setting and create the coordination curve of the existing setting and compared it with the coordination curve setting according to the calculation result. The results of the calculation of instant recloser recycling settings obtained by 1.246 A with time multiple setting (Tms) of 0.11 while the value of the instant current setting of the feeder of 2.992 A with Tms of 0.38. Based on the simulation result using ETAP program, it is known that over current relay coordination has worked according to the protection zone when the noise occurrence behind the recloser bus did not result in a trip feeder.
OPTIMASI PENEMPATAN DISTRIBUTED GENERATION PADA PENYULANG GOA LAWAH MENGGUNAKAN METODE PARTICLE SWARM OPTIMIZATION (PSO)
Authors: Bagas Sastra Negara I Made , Satriya Utama Ngakan Putu , Indra Partha Cok Gede
Published: June 2019

Distributed Generation (DG) is a small-scale power plant located close to the center of load. Goa Lawah feeder is a broadcast that is close to the potential of DG namely the Mini Hydro Power Plant on the Unda River in Klungkung Regency. In this research the optimization of Distributed Generation placement to Goa Lawah feeder. Optimization of Distributed Generation placement aims to reduce the value of loss of power that exist in the feeder Goa Lawah. The results of the research obtained at the point of bus 123 by Distributed Generation placement using Particle Swarm Optimization (PSO) method, with power loss 41 kW (44%). The initial loss before the Distributed Generation interconnection of 72 kW after the Distributed Generation interconnection to 31 kW.
Perencanaan Sistem Long Term Evolution di Wilayah Kota Denpasar Memanfaatkan Bale Banjar untuk Menempatkan Base Station
Authors: Sthefianus Yoel , Sudiarta Pande Ketut , Sukadarmika Gede
Published: June 2019

Perencanaan sistem jaringan LTE dipengaruhi oleh beberapa faktor, salah satunya adalah faktor kontur wilayah yang berbeda. Kontur permukaan wilayah berpengaruh terhadap cakupan area yang dihasilkan suatu base station. Perencanaan jaringan berdasarkan analisis perhitungan, tidak mempertimbangkan kontur wilayah, maka untuk menunjang hal tersebut diperlukan simulasi menggunakan software Atoll. Metode pada penelitian ini menggunakan perhitungan dan simulasi software Atoll. Penempatan base station memanfaatkan 385 Bale Banjar sebagai titik site menara rooftop. Penempatan ini dilakukan di Bale Banjar dikarenakan mudahnya akses perijinan tempat, seperti base station pada Bale Banjar Balun. Berdasarkan hasil perhitungan dan pemodelan simulasi jarak jangkauan antena base station dengan model propagasi Cost-231 Hatta frekuensi 1800 MHz, diperoleh jarak sebesar 1,186 km. Simulasi perencanaan sistem LTE di wilayah kota Denpasar memerlukan 55 site, terdiri dari 54 site yang memanfaatkan Bale Banjar untuk menempatkan base station dan 1 site di luar kawasan Bale Banjar, serta diperlukan pengaturan electrical tilt sebanyak 40 site untuk mengatasi permasalahan cakupan area.
ANALISA KONSUMSI DAYA SISTEM PELACAKAN POSISI MUATAN ROKET BERBASIS ARDUINO
Authors: Rama Windhu Putra Anak Agung Bagus , Wiharta Dewa Made , Putra Sastra Nyoman
Published: June 2019

This study examines the power consumption of the Arduino-based rocket payload position tracking system. The system device consists of Arduino Mega 2560, Sensor Compass, Barometer Sensor, GPS (Global Positioning System) Sensor, LCD (Liquid Crystal Display) character, Xbee-Pro 900HP, and two servo motors. Testing is done using a Digital Watt Meter tool that is able to read the voltage, current, and power used in the system. Test method by observing digital watt meter when the system runs tracking the rocket payload. Data retrieval interval is once every 10 minutes for 1 hour and calculates usage time, until the battery reaches the maximum usage limit. This research has been carried out successfully. When test performs on interval of 1 hour, the power usage by the system is 0.470 Ah until the battery voltage reaches 11.8 volts and the average power reaches 5.56 watts. Usage time of a Li-Po 1300 mAh battery is 3 hours 56 minutes until the battery voltage reaches 10.08 volts.
SISTEM MONITORING TEMPAT PEMBIBITAN IKAN ARWANA BERBASIS IoT MENGGUNAKAN APLIKASI CISCO PACKET TRACER 7.0 SEBAGAI SIMULATOR
Authors: Arsarahadi Oka Brahmansa Ketut , Sudiarta Pande Ketut , Gunantara Nyoman
Published: June 2019

Arowana fish farming sector is one sector that can support the economy of Indonesia society. But most fish farmers in Indonesia are still using conventional procedures for the cultivation of fish that can cause a variety of losses. In this study offered a solution in the form of a simulation design of an Arowana Fish Nurseries Monitoring System-Based on The Iot Scheme using Cisco Packet Tracer 7.0 Application as a Simulator. In the designing process, the monitoring system will be split into two sub system such as security system and arowana aquaculture support system. There are four kind of sensor that can be used in the simulation process such as CO2 Detector, Temperature Monitor, Motion Detector, and Water Level Monitor. If the sensor detects a value that does not match the specified parameter then the attenuator of the sensor will react according to the conditions set through the condition setting. Information generated by these devices will then be sent to the server, then to access information and monitor the devices can be done through a web server that has been available. The result from this study is that the simulation can run well but there are still shortcomings because of the limitations of the simulator used so it is expected that in the next version of simulator the limitations can be overcome
POTENSI PEMANFAATAN ATAP GEDUNG PUSAT PEMERINTAHAN KABUPATEN BADUNG UNTUK PLTS ROOFTOP
Authors: Yaya Putra Pratama I Dewa Gde , Satya Kumara I Nyoman , Setiawan I Nyoman
Published: June 2019

In the RUPTL PT PLN Years 2017 untill 2026, the goverment aim to reach 5000 MW of PV plant potential in 2025. But, until November 2016, the number of PV plant in Indonesia is around 11 MW. To reach the 5000 MW target, many approach must be use. One of the approach is install PV plant on goverment buildings. Pusat Pemerintahan Kabupaten Badung (Puspem Badung) is a goverment buildings complex which located in Badung Regency, Bali is one of the goverment building that can be use for this approach. This paper aim to know the potency of electrical power dan electrical energy produced by Puspem Badung if the PV plant installed on the north, east, west, and south side of the roof. Electrical energy produced by PV plant is simulated by using System Advisor Model (SAM). From the simulation results, north side of the roof can produce energy of 1.847.361 kWh/year. From the analysis, the total energy that can be produced by PV plant is 6.169.092 kWh/year. This amount can supply Puspem Badung energy need by 124,72 %.
OPTIMASI PENEMPATAN RECLOSER UNTUK MEMPERBAIKI KEANDALAN PADA PENYULANG LEMBONGAN MENGGUNAKAN METODE PARTICLE SWARM OPTIMIZATION-FUZZY
Authors: Luis da Costa Jaime , Sari Hartati Rukmi , Setiawan Widyadi
Published: June 2019

In Bali, especially at Tiga Nusa, the need for electricity is increasing along with the development of the construction of resorts and hotels. In this study, a sample of cases was taken in 2014 regarding the Lembongan feeder network system which was still installed with several LBS (Load Break Switch) which used to localize interference. Therefore, to anticipate interference and improve the reliability of feeders, one of many ways is to add an automatic back cover (recloser). This study aims to determine the optimal recloser location in the Lembongan feeder by using a combined method of fuzzy logic and particle swarm optimization with the help of MATLAB software. The results of this study obtained the best location of the recloser in group 5, namely the area between LBS SD 3, LBS Celagi Empak, and LBS Lembongan by adding one recloser. The SAIFI value is 1,9471 times / customer / year and the SAIDI value is 1,4596 hours / customer / year where the world class service parameter standard for the SAIFI reliability index is 3 times / customer / year and the SAIDI reliability index is 2,5 hours / customer / year.
ANALISIS KEANDALAN DAN SUSUT DAYA PENYULANG TABANAN SETELAH REKONFIGURASI
Authors: Al Farisi Salman , Sari Hartati Rukmi , Sukerayasa I Wayan
Published: June 2019

The need for electricity in this global era is increasing, so that a more reliable electrical system is needed. A reliable system cannot be separated from interference, so there needs to be a system reliability analysis and power loss to the feeder by configuring the network. This research was conducted to find the reliability index value in the form of interference frequency and duration of interference (SAIFI and SAIDI). In one Tabanan feeder the results obtained exceed the standard so reconfiguration is performed Based on the analysis obtained before reconfiguration, the reliability index for SAIFI is 6,7456 (failure / year) and SAIDI is 11,4767 (hour / year) and power loss by 6,27 %. After reconfiguration of Tabanan feeder, the reliability index was better, for SAIFI is 5.2475 (disturbance / year) and SAIDI is 9,8798 (hour / year), the power loss was 2.82%. Sanggulan feeder is a new feeder reconfiguration result from Tabanan feeder, where the analysis was carried out to find out the reliability index of Sanggulan feeder, it was obtained the SAIFI value of 4.5753 (disturbance / year) and SAIDI of 9.5297 (hour / year) and power loss of 4,80%.
ANALISA SISTEM PENGAMAN GENERATOR PLTDG DI PT INDONESIA POWER UNIT PEMBANGKITAN BALI
Authors: Wira Asta Dharma Putu , Indra Partha Cok Gede , Satriya Utama Ngakan Putu
Published: June 2019

The need for electrical power, especially in Bali, is increasing every year. Therefore, the Bali’s Generating Unit of PT Indonesia Power has replaced the Diesel-powered Electrical Generator Pembangkit Listrik Tenaga Diesel (PLTD) with ‘the Gas-powered Diesel of Electrical Generator Pembangkit Listrik Tenaga Diesel Gas’ (PLTG). Such a replacement causes the change in the generating capacity power which affects the setting and system of protection. This current study was intended to analyze the relay protecting system using the short connecting simulation method in the ETAP program in order to be able to identify the maximum and minimum disturbing current, the working time setting and the OCR (Over Current Relay) and GFR (Ground Fault Relay) protecting coordination. Based on the result of simulation and calculation, it can be concluded that the OCR took 1.18 seconds to work, faster than the GFR, which took 2.25 seconds to work.