Abstract-The specific objective of this research is to produce a system of internallightning and Eksternal lightning rod with grounding which has been widely used in industries such as lightning protection and grounding system of substation, transmission lines and coupling wire used in high-rise buildings either belong to government or private property. In this study, lightning rod is located outside the building structure that serves to catch or receive the bolt of lightning and the lightning deliver to the ground safely.

Abstract-On one hand, the particular objective of this research is to yield the software program in order to control efficiently the important aspects in electric power systems which can be implemented in industries. In the other hand, the longterm objective is to extend the curriculum, syllabi, laboratory facilities, and to improve the abilities and qualities of graduates continuously either within State Polytechnic of Ujung Pandang or outside. Method used to achieve these objectives is making, design and implementation which will be last for two years. Simulator for generation system in the first stage of the research is balanced six-phase system yielded from the circuit of 3-one phase centre-tap transformers of 220/18 V, 15 A, as the supply of low-tension 3-phase system, which feeds six one-phase transformer of 18/220 V, 20 A, whose output as another balanced 3-phase system with 220 V/phase. From balanced 6-phase system, a balanced 3-phase will simulate generator number 1 and another balanced 3-phase will simulate that of number 2. Interface which is based on Delphi program is to switch all transmission lines. The result of experiment shows that voltages in the two generator busbars experience the significant drop voltage if they work separately, that are 20.5% -36.4% and 20.5% -63.6% for generator number 1 and number 2 respectively, for one to three load busbars operated sequentially, which also reveals that greatest voltage drop occurs in the generator busbar with most lines supplied. Simulating the two generators working simultaneously, then voltage drops are more significant, that are 65.9% -72.7% and 65.9% -79.5% for generator number 1 and number 2 respectively, for one to three load busbars operated sequentially, which also proves that transformer bank as generator simulator needs to increase its current capacity.

Prediction of electrical load on 150 kV Sulselrabar electrical system, analyzed using approach at night peak load using Fuzzy Logic based intelligent method. The peak load characteristics are certainly different from the load in normal time, therefore a special approach is needed to predict the peak night load. As input data will be used data of night peak load in 2010 until 2015, on the same day and date, each 4 days before day-H or day date which will be predicted load. For the data processing stage is divided into several stages, namely pre-processing, processing, and post-processing. The load data processing follows several procedures, ie computing WDmax, LDmax, TLDmax and VLDmax each year. Data processing is processed using excel software and then using Matlab software to run Fuzzy Logic. From the analysis results obtained, Error Prediction The peak evening load is very small that is equal to -0.070033687%. As comparison data used actual day-H data is April 2016. The graph of analysis result also shown in this paper.Keywords– Fuzzy Logic Control, Load Forecasting, Error, VLDmax

The electric power system is one of the sources of electricity found in the vehicle which functions as a starter and electric component of the vehicle. The battery (battery) is a source of electricity to meet the electrical system in the car, but the battery is only a place to store electric charge. Therefore, there is an alternator as a power generator to charge the battery. The alternator on a car uses artificial magnets in its rotor which still require excitation. Therefore, it encourages the author to analyze the comparison of alternators using permanent magnets and artificial magnets. The problem that arises is how to compare rotation, voltage, and output power on the alternator using permanent magnets and artificial magnets. The purpose of this study was to determine the ratio of the output power generated by the alternator using permanent magnets and artificial magnets. Research and Development Methods are research methods used to produce certain products, and test the effectiveness of these products. Based on the results of the tests carried out, it was found that at the same rotation an alternator with a permanent magnet generates a greater output power than the artificial magnet. However, at the same rotation the motor requires more input power to rotate the alternator when using permanent magnets. When the alternator output voltage is the same, the rotation of the alternator using the permanent magnet is lower.

Abstrak: Generator sinkron bekerja dengan mengubah energi mekanis menjadi energilistrik tiga fasa. Tegangan keluaran generator harus konstan. Namun, padakenyataannya tegangan yang dihasilkan generator akan berubah akibat perubahanbeban. Untuk menjaga agar tegangan tetap konstan pada tegangan nominalnya, makadibutuhkan alat yang disebut AVR (Automatic Voltage Regulator). AVR ini bekerjadengan mengatur arus eksitasi agar nilai tegangan keluaran generator konstan. Hal itusangat penting dalam menjaga tingkat stabilitas generator. Penelitian ini bertujuanuntuk menganalisis penggunaan AVR pada sistem eksitasi generator. Dengan metodepenelitian, mengukur parameter pada sistem eksitasi hingga tegangan keluarangenerator. Kemudian dari data-data yang diperoleh, dapat dianalisis perfoma AVRkedua generator sehingga diketahui stabilitas generator pada setiap unitnya. Hasilpenelitian menunjukkan bahwa AVR pada generator 2 bekerja lebih optimaldibandingkan dengan AVR pada generator 1. Ditunjukkan dengan regulasi teganganpada generator 2 lebih rendah (0,279%) dibandingkan regulasi tegangan padagenerator 1 (0,385%). Hal ini dikarenakan AVR generator 2 menggunakan AVR barudengan tipe PRISMIC A3100 sedangkan AVR generator 1 tipe Unitrol F ABBmemiliki usia pemakaian yang lama sehingga daya gunanya pun menurun.Kata Kunci: AVR generator, Generator Sinkron, dan Sistem Eksitasi,