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EVALUASI SETTING RELAI JARAK (DISTANCE RELAY) PADA SALURAN UDARA TEGANGAN TINGGI (SUTT)150 kV ANTARA GARDU INDUK SIDERA-GARDU INDUK TIPO
No full textAbstract-Overhead line high voltage (SUTT) or commonly called a transmission network or transmission line has very important role in the process of distribution of electrical from power plants to load centers continuously. However, overhead line is one component in the system which is often fault. To avoid damages and greater losses, it has used the distance which is as the primary protection in securing the transmission network or transmission line. In this research, it discussed about one phase-neutral short circuit that happens on line transmission connected to Sidera-Tipo substation by calculating the current fault andoperating time of distance relay using the software of ETAP (electric transientandanalysis program) 12.6.0.
 
EVALUASI SISTEM DISTRIBUSI DESA KAMARORA KECAMATAN NOKILALAKI KABUPATEN SIGI
Full text linkThe development of technology from year to year is greatly improved, many supporting needs must be prepared specifically for electrical energy needs. The side ofthe distribution of electricity and its utilization must meet the requirements so that in its use can be more optimal and does not cause harm and accidents for humans and loss of property. Kamarora is one of the villages that also uses and utilizes electricity resources in Nokilalaki district. The village has 1 unit of 100 kVA capacity portal type transformer.
In this study used measurement methods, customer data collection, and checking directly on the connection in each phase to find out the percentage of transformer loading performance and minimize unbalance of the load transformer.
The results of research and analysis, the distribution transformer in Kamarora village have the highest loading conditions with peak load times (PLT) line 1 and 2 at 19:00 pm with a loading percentage value of 60.47 %, the value of imposing a transformer means that it is still underloaded. And then, the unbalance of the load transformer is high enough, the total power used in line 1is phase R (3600 VA), S (9400 VA), T (17400 VA). Line 2 westward is phase R (16150 VA), S (18900 VA), T (21950 VA) and line 2 eastward is phase R (17050 VA), S (18850 VA), T (3850 VA). Planning the load distribution for each line 1 and 2, namely in the line of 1is phase R (10200 VA), S (9400 VA), T (10800 VA).Line 2 westward is phase R (19250 VA), S (18900 VA), T (18850 VA) and line 2 eastward is phase R (23841 VA), S (23844 VA), T (24188 VA)
PERANCANGAN FLYBACK CONVERTER UNTUK CATU DAYA DRIVER MOTOR BLDC ( BRUSHLESS DIRECT CURRENT )
Full text linkFlyback Converter is an electronic circuit that can increase the output voltage value, the voltage value can be adjusted by changing the value of the duty cycle. This Flyback Converter will be controlled by the Pulse Width Modulation method as the output voltage setting and this research is equipped with a feedback function as monitoring and control of Input Pulse Width Modulation.
This designed flyback converter aims to provide an isolated power supply as a power source for Brushless Direct Current Motor drivers, and this research was conducted to analyze how much power the flyback converter can produce to be able to supply Brushless Direct Current Motor drivers.
The results of the analysis obtained in the research Design of flyback converter for power supply of BLDC (Brushless Direct Current) motor driver that is flyback converter is given an input voltage of 31 VDC and output voltage of 15 VDC, rheostat load with a capacity of 39 Ohm, a frequency of 31 KHz in the form of a box wave duty cycle reaches 70%. Flyback converter designed to produce maximum power of 49.6 watts on 70% duty cycle testing
RANCANG BANGUN MODUL PRAKTIKUM APLIKASI OP-AMP BERBASIS IC 741 DAN IC 301
Full text linkThe objective of this research is to design and create a practicum application of op-amp (operational amplifier) based on IC 741 and IC 301. By adding the components R (Resistor) C (Capacitor) IC op-amp can be applied into several series. In this practical tool there are several modules of the experiment such as multiplier, the enumerator, deduction, comparison, integrator, differentiators. This tool also equipped with a series active filter such as low pass filter, high pass filter, band pass filter and band stop filter. This practical tools requires some tool support in the form of power supply as an input voltage, a function generator to generate signals with different shapes as desired in accordance with the requirements when the practical activities and the oscilloscope as a tool of reader input waveform and the output of the circuit that exist in practical tools. Practical activities and oscilloscopes as input and output wave reader from the circuits in the practicu
ANALISIS SETTING RECLOSER & PENENTUAN RATING FUSE CUT OUT BERDASARKAN ZONA GANGGUAN PADA JARINGAN DISTRIBUSI 20 KV GI SIDERA FEEDER PALOLO PT. PLN (PERSERO) BERBASIS ETAP 16.0.0
Full text linkIn the distribution of electrical energy from substations to the load center distribution channels are needed. The problem that often occurs in distribution channels is short circuit interference. Often the location of the disturbance cannot be immediately located, thus slowing down the process of handling the disturbance. Disturbances that occur in the 20 kV distribution network are temporary (temporary interruption) and permanent (permanent fixes that take a long time). Even the interference that was originally only temporary can turn into permanent interference, because the protection system installed does not work optimally. To overcome this, it is necessary to analyze the disturbance zone in the distribution network.
Protection on the electricity distribution network has a very important role for the reliability and continuity as well as the security of electricity distribution, especially at the end of the load and one-phase branching. The inter-safety coordination on the distribution network must be in accordance with the standards set by PT PLN (Persero) ). In one phase branching area there is a safety against the current interference that may occur, namely Fuse Cut Out (FCO). very small short circuit, for that we need to pay attention to the way the recloser works with FCO (fuse Cut Out) so that the two safeguards can work well and avoid coordination failures on one-phase branching lines, so that the blackout area can be reduced. do the OCR relay settings in recl oser and Determination of suitable FCO rating so that the type used can be in accordance with the standard and can be in accordance with the load conditions in the field
PERANCANGAN GEOGRAPHIC INFORMATION SYSTEM UNTUK TRACKING DAN ROUTING MENGGUNAKAN ALGORITMA DIJKSTRA PADA KENDARAAN ANGKUTAN UMUM
Full text linkThe ability to do tracking and routing of a motorized vehicle is very useful in everyday life, such as security on private vehicles, public transportation systems, mass transportation fleet management and others. In this study, we designed a Geographic Information System (GIS) application that will be applied to public transport services. This system will in real time track the position of each vehicle (taxi) and be able to perform automatic service for every taxi request by the customer.
Dijkstra's algorithm is a graph search algorithm that solves the shortest path problem that originates from one node for a graph where the weight of the node must not be negative. The analysis is done by examining the node with the smallest weight and inserting it into the set of solutions with the initial search for the origin node requiring knowledge of all paths and weights. Dijkstra's algorithm which is applied to this system will function to find the most suitable taxi for customers by using distance parameters and traffic density levels as the weight value
RANCANG BANGUN ALAT UKUR FLEKSIBILITAS TUBUH MENGGUNAKAN SENSOR JARAK BERBASIS MIKROKONTROLER
Full text linkBody flexibility is one of the factors that greatly helps physical health because it can help in prevention, help restore muscle, and improve efficiency in various physical activities. One method to measure the body speed level is Sit and Reach Test using the Sit and Reach Box Scale measurement tool. Technically, this measuring instrument is still manual, simple and its production is still very limited. Therefore we need a measuring device to use electronic components to help process better and better in terms of which can be adjusted to good or bad by using the parameter norm Sit and Reach Test. The purpose of this study is to design a flexibility measuring instrument using a microcontroller based proximity sensor. This tool works with the arduino unu microcontroller as the main controller, HC-SR04 ultrasonic sensor as a distance reader for body flexibility, LED indicators and speakers as a sign of body flexibility, then LCD and delphi 7 applications using serial communication as a display of body flexibility
RANCANG BANGUN ALAT PEREKAM DATA LIKUIFAKSI BERBASIS ARDUINO NANO
Full text linkCentral Sulawesi, precisely in the city of Palu, is one of the areas that frequently occurs in earthquakes and has high seismicity. The regional geology of the Palu area and its surroundings is dominated by quarterly deposits consisting of fluivatil and alluvium deposits. These natural conditions have several potentials that are detrimental, including the potential for liquidity. (Widyaningrum, 2012).
Liquidation is an event that occurs when a soil becomes saturated or loses its ability to support the mass above it because the land changes form into heavy water or becomes liquid. Lack of further knowledge about the faction by the surrounding community causes a lack of vigilance in dealing with the faction.
The things that people need to know about potentially liquefaction soils are data on soil moisture, changes in underground temperature, and vibrations that are felt underground when earthquakes occur shortly after liquefaction using a device in the form of an arduino nano-based data recorder. The Design of Arduino Nano Based Likuefaction Data Recording Tool can be used to record and record data on lycufaction disaster events. And is used to make it easier to analyze the potential occurrence of liquefaction in certain regions by utilizing the sensor to measure soil temperature, soil moisture, and vibrations that occur in the soil
RANCANG BANGUN PEMBACAAN VOLUME AIR YANG DIKONSUMSI PELANGGAN PDAM MELALUI SMS
Full text linkThe PDAM is still using an analog flow meter. For PDAM customers, information on analog flow meters is difficult to access and convert into payment amounts. With an analog reading system, the PDAM officer still records using the manual method of the customer's total water consumption data.
From the problems above, we need a digital reading system that can display customer water consumption and payment data that can be accessed by customers. The reading of the volume of water consumed by PDAM customers via SMS is a device designed based on the Arduino Uno microcontroller, equipped with the ability to monitor water usage in real time using SMS media.
The reading of the volume of water consumed by PDAM customers uses a water flow sensor that functions to read the flow of water that passes and provides pulse output. Arduino Uno receives pulse output from the water flow sensor which is then converted into a number that shows the number and tariff of water usage of PDAM customers. The LCD displays information on total usage, usage rates, time and date in real time. The SIM800L module sends SMS based on orders received from customers and PDAM officials. The results achieved in this study are the water flow sensor is able to read the amount of water consumption of PDAM customers with an average deviation of 0.034%. Tests show the results of payment conversions are in accordance with the PDAM payment model in Palu City
PEMODELAN DIRECT FIELD ORIENTED CONTROL (D FOC PADA PENGATURAN KECEPATAN MOTOR INDUKSI TIGA PHASA
Full text linkThe 3 phase induction motor in its use is increasingly growing, so research on the speed regulation of the 3 phase induction motor is also increasingly being studied. This is because the use of 3 phase induction motors in industry and especially hybrid vehicles is increasingly being developed. But there are some disadvantages of induction motors, one of which is the characteristics of non-linear parameters, especially rotor resistance which has varying values for different operating conditions, so it cannot maintain its speed constantly if there is a change in load. This of course can affect the performance of an induction motor. To get a constant speed and better system performance on load changes a controller / controller is needed. This study aims to model the parameters used in Direct Field Oriented Control (DFOC) using Matlab SIMULINK. With the controlled dq parameter, the induction motor will be more stable, because the dq parameter determines the stability of the changes in torque and flux in the induction motor. In the results of implementation, it can be seen that the use of DFOC can be used as an approach in the speed regulation of the induction motor. and with the use of PI controls it can help the output response get better with a shorter response time to reach the reference value