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PERANCANGAN SISTEM HIBRID PEMBANGKIT LISTRIK TENAGA SURYA DENGAN JALA-JALA LISTRIK PLN UNTUK RUMAH PERKOTAAN Liem Ek Bien, Liem Ek Bien; Kasim, Ishak; Wibowo, Wahyu
Jurnal Teknik Elektro Vol 8, No 1 (2008)
Publisher : Jurnal Teknik Elektro

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Abstract

Solar cell is one of renewable energy. Solar cell can convert directly sunlight dissociationenergy of diatomic to become electric energy. Electric energy yielded by solar cell hardlyinfluenced by the sun intensity of light received, so that solar cell can only yield electricenergy if there are sunlight. Supply of electric energy should be able to be applied everytime. Hybrid of solar energy alternator (PLTS) with electrical grid of PLN will yieldcontinuous supply of electric energy. At this hybrid system, electrical supply from PLTS isdesigned to be around 30% from overall load of electrical equipment in household, the restload around 70% is fulfilled by PLN.Hybrid process of PLTS with the electrical grid iscontrolled by a switch controller which its working principal based on one way direction;when PLTS works (on), hence electric supply from PLN is disconnected and so vice versa.Keywords: solar cell, hybrid system, switch controller
SISTEM KENDALI KERETA OTOMATIS PADA KERETA REL LISTRIK VVVF Liem Ek Bien, Liem Ek Bien; Kasim, Ishak; Hartanto, Hednry
Jurnal Teknik Elektro Vol 5, No 2 (2006)
Publisher : Jurnal Teknik Elektro

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Abstract

The most challenging issues in railway systems today is a driverless systems which includesmodern requirements for safety and reliability and also allows the basic improvement of theflow and effectivity of the operation including a comfort improvements for operators. Thesystems was known as Automatic Train Control (ATC) system. The ATC here is able to keepthe scheduled time and to optimize the train running with respect to minimum energyconsumption, also considerably simplify the driver’s work.Keywords: Automatic Train Control, Automatic Train Operations, Automatic TrainProtection.
ANALYSIS OF POWER LOSSES CALCULATION IN MEDIUM VOLTAGE NETWORK OF FEEDER SERIMPI, PAM 1 AND PAM 2 AT NETWORK AREA GAMBIR PT.PLN (PERSERO) DISTRIBUSION JAKARTA RAYA AND TANGERANG Liem Ek Bien, Liem Ek Bien; Kasim, Ishak; Pratiwi, Erni Aprianti
Jurnal Teknik Elektro Vol 8, No 2 (2009)
Publisher : Jurnal Teknik Elektro

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Abstract

Power losses at medium voltage network distribution systems cannot be avoided. Although its value is difficult to know exactly but it can be calculate. The value is influenced by load and line resistance, it is one of the aspects of efficiency on power electric distribution. This paper uses two calculation methods. The first method is basic formula which PLN usually use based on field data acquisitioned. The second method is calculation based on research estimation power losses per year; this method is providing (IEEE, 2006: 1092). Keywords: Medium Voltage Network, Distribution Feeder, Llosses.
KEDUDUKAN HAK WARIS ANAK MENURUT HUKUM ADAT, HUKUM ISLAM, HUKUM PERDATA SEBAGAI PERBANDINGAN Kasim, Ishak
LEX ET SOCIETATIS Vol 4, No 5 (2016): Lex Et Societatis
Publisher : Sam Ratulangi University

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Abstract

Penelitian ini dilakukan dengan tujuan untuk mengetahui bagaimana keberadaan kedudukan hak waris anak menurut hukum adat, hukum Islam dan hukum perdata dan bagaimana pandangan hukum adat, hukum Islam, hukum perdata terhadap kedudukan hak waris anak. Dengan menggunakan metode penelitian yuridis normatif disimpulkan: 1. Keberadaan kedudukan hak waris anak menurut ketiga hukum (hukum adat; hukum Islam; hukum perdata) merupakan bagian yang terpenting dari ahli waris. Dari ketiga hukum tersebut di atas membedakan derajad/tingkat status anak yang menentukan karena terdapat anak sah, anak tiri, anak hasil perzinahan; anak pungut; anak di luar kawin. Inilah yang menentukan kedudukan hak waris anak. 2. Pandangan ketiga hukum (hukum adat, hukum Islam, hukum perdata) terhadap hak waris anak; terlihat bahwa hukum adat tidak mengenal legitieme pertia, hanya mengenal persamaan hak terletak pada keturunan. Adapun dalam hukum Islam mengenai ahli waris dari keturunan/kalangan laki-laki dan perempuan sesuai dengan dasarnya al-Qur’an dan sunnah nabi yang tidak mengakui anak angkat; anak hasil perzinahan, tidak mewarisi dari bapaknya. Sedangkan pandangan hukum perdata (BW) terhadap kedudukan hak waris anak mengutamakan anak sah (anak di luar kawin) hanya punya hubungan waris terhadap ibunya ini dilihat pada hukum keluarga; dengan demikian asas yang terdapat pada hukum perdata (BW) yang terlihat dalam beberapa Pasal BW berbeda dengan pandangan hukum adat dan hukum Islam terutama terhadap kedudukan hak waris anak (anak sah, anak di luar kawin, anak angkat, anak tiri, anak pungut) sehingga dengan perbedaan timbul perbandingan pada penerapan ketiga hukum tersebut diatas. Kata kunci: Hak waris, anak, hukum adat, hukum Islam, hukum perdata, perbandingan
ANALISIS PENAMBAHAN LARUTAN BENTONIT DAN GARAM UNTUK MEMPERBAIKI TAHANAN PENTANAHAN ELEKTRODA PLAT BAJA DAN BATANG Ishak Kasim; David Hana Hertog; Dean Corio
Jetri : Jurnal Ilmiah Teknik Elektro Jetri Volume 13, Nomor 2, Februari 2016
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.666 KB) | DOI: 10.25105/jetri.v13i2.497

Abstract

Grounding system is required in order to protect a building or electronic equipment from damage caused by exposed lightning strikes. The maximum value of grounding resistance for a building is 5 ohm (PUIL 2000) and 3 ohm  for electronic equipment (PT Telkom, 1994). A good grounding system is achiered by minimizing the value of the grounding resistance and it is done by giving an additives solution to the ground. The additive solution in this research is the mixture of bentonite and salt solution. After the additive solution was given, it shows the grounding resistance decrease to less then 1 ohm.Sistem pentanahan diperlukan untuk mengamankan suatu gedung atau peralatan elektronik yang ada di dalamnya agar tidak mengalami kerusakan akibat terkena sambaran petir. Nilai tahanan pentanahan maksimum untuk sebuah gedung adalah 5 ohm (PUIL 2000) dan 3 ohm untuk peralatan (PT Telkom, 1994). Perlu dilakukan perencanaan sistem pentanahan yang baik untuk memperkecil nilai tahanan pentanahan yang dapat dilakukan dengan penambahan zat aditif pada tanah. Pada penelitian ini zat aditif berupa larutan garam dan larutan bentonit. Pengukuran yang dilakukan setelah penambahan larutan garam dan bentonit menunjukan penurunan nilai tahanan pentanahan menjadi lebih kecil dari 1 ohm.
PERBAIKAN JATUH TEGANGAN PADA FEEDER B KB 31P SETIABUDI JAKARTA DENGAN METODE PECAH BEBAN Ishak Kasim; Chairul Gagarin Irianto; Fachrizal Fachrizal
Jetri : Jurnal Ilmiah Teknik Elektro Jetri Volume 11, Nomor 1, Agustus 2013
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (941.843 KB) | DOI: 10.25105/jetri.v11i1.1689

Abstract

                                                               Abstract The need for electricity in Indonesia now increases , along with an increase in the number of customers , which is industry and households. With the increasing need for electricity at the moment, the level of reliability of the electrical system becomes very important thing to guarantee the continuity for supply of power to consumers. In this final assignment will be discussed regarding repairs voltage drop at the feeder B KB 31P in Setia Budi Jakarta method breaks the load. Falling voltage on the network is very closely associated with the increasing load on each phase. The magnitude of the voltage and the voltage drop size on feeder network tip B KB 31P will be analysis of data by using two measurements which are in the daytime and night-time before and after a splits load will then be compared to the standard service voltage variations that have been determined by PLN. Keywords: network, intrusion, detection, snort, flooding.
A Deteksi Kekurangan Pelumas Bearing untuk Mencegah Kerusakan pada Motor Induksi Kompresor Udara Cachandra, Varel Farhan; Farhan, Varel; Irianto, Chairul Gagarin; Kasim, Ishak; Sari, Tyas Kartika
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 20, Nomor 2, Februari 2023
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v20i2.15597

Abstract

The induction motor is one of the most important parts in the industrial world today, so if an induction motor is damaged it can affect the production process. Therefore, disturbances that exist in induction motors must be predicted or detected as early as possible. One of the causes of bearing damage is lack of lubrication which can cause an increase in motor temperature, noise, vibration and sparks which can cause damage to other parts of the induction motor. So the authors will conduct research using four different parameters namely starting current, vibration, and temperature on Air Compressor motors whose maintenance treatment in re-lubrication is carried out differently. In this study it was found that if the lubrication on the bearings is not maintained properly then the vibration value is very high at 23 to 24 mm/s, the starting current itself increases up to 8 times the nominal current where this can cause large voltage losses, the current is above the nominal current of the motor, which is 133% of the nominal current, with dry lubrication on the bearings of the induction motor, friction cannot be minimized so that the temperature of the motor increases where data is obtained on the temperature rise of the induction motor for 5 minutes the motor works at 74.3⁰ C and this can endanger the induction motor itself, it can be concluded that the lack of lubrication on induction motor bearings affects 4 parameters mentioned before. Keywords: 3 phase induction motor, Air Compressor, Bearing, Lubrication Oil, Vibration  
Analisis Perbandingan Efisiensi dan Biaya Penggunaan Lampu AC dan DC Menggunakan PLTS Alfathina, Ghina; Irianto, chairul Gagarin; kasim, ishak; Abduh, Syamsir; sari, tyas kartika
Jetri : Jurnal Ilmiah Teknik Elektro Vol. 21 No. 1 (2023): Jetri, Volume 21, Nomor 1, Agustus 2023
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jetri.v21i1.17032

Abstract

Abstract Solar power plant is one of the developments in the use of renewable energy that has received government support through Ministerial Regulation No.49 of 2018 and Ministerial Regulation No.26 of 2021 regarding rooftop solar power plant. Based on the 2019 solar power plant roadmap draft, the investment cost of rooftop solar power plant per kWp is around 14-25 million rupiah, the amount of this investment is an important consideration for the community to install rooftop solar power plant. One alternative to reduce the investment cost of rooftop solar power plant is to reduce the capacity of the inverter by using lighting from DC lamps. This research was conducted by comparing the efficiency values and investment costs, and using the benefit-cost analysis method to compare a series of relevant costs and benefits between the use of DC lamps and AC lamps for household lighting using PLTS. The results of this research is that DC lamps have a light current of 280 – 350 lumens, an illumination intensity of 48 lux, and a PLTS system efficiency of 98,5% which is higher in value compared to AC lamps which have a light current of 250 lumens, an illumination intensity of 21 lux, and a PLTS system efficiency of 49,3% with the same lamp power of 3W. Analysis of the investment feasibility of on-grid and off-grid PLTS, both 2200VA and 900VA shows that the NPV is negative and the BCR value is less than 1, so the investment is not yet feasible. Keywords: Investment feasibility analysis, DC Lamps, AC Lamps, Solar Rooftop
ANALISIS PENGARUH BEBAN TERHADAP EFISIENSI DAN SUSUT UMUR TRANSFORMATOR KERING 630KVA DI MODA RAYA TERPADU JAKARTA Adami, Raja Ali; Irianto, Chairul Gagarin; Sari, Tyas Kartika; Kasim, Ishak
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 26, No 4 Oktober (2024): TRANSMISI: Jurnal Ilmiah Teknik Elektro
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transmisi.26.4.185-191

Abstract

Kehandalan suatu sistem tenaga listrik ditentukan juga oleh peralatan dalam sistem tenaga listrik. Salah satu peralatan sistem tenaga listrik yang sangat penting fungsinya adalah transformator yang digunakan untuk operasioal di Moda Raya Terpadu Jakarta yaitu Transformator berjenis kering. Penelitian yang dilakukan untuk menganalisis penyusutan umur, pengaruh beban terhadap masa pakai, besarnya efisiensi dan menganalisis pengaruh pembebanan yang berlangsung pada transformator kering di stasiun MRT Lebak Bulus dan stasiun MRT Fatmawati. Penelitian ini mencakup banyak metode penelitian dengan menghitung rasio pembebanan, suhu transformator, penyusutan umur selama 24 jam serta % susut umur transformator sehingga dapat diketahui hasil sisa umur transformator. Persentase pembebanan yang didaptkan distasiun MRT Lebak Bulus dengan hasil terendah hingga tertinggi mencapai 10,57% LWBP dan 16,64% WBP sedangkan persentase pembebanan stasiun MRT Fatmawati memiliki hasil lebih tinggi yaitu 9,95% LWBP dan 18,25% WBP. Hasil penyusutan umur Stasiun MRT Lebak Bulus sebesar 0,05925% dengan sisa usia pakai transformator kering selama 14,1945 tahun. Hasil penyusutan umur transformator kering pada stasiun MRT Fatmawati sebesar 0,06% dengan sisa usia transformator kering selama 14,19 tahun. Hasil perhitungan yang didapatkan yaitu Efisisensi pada transformator kering stasiun MRT Fatmawati lebih besar dengan hasil rata-rata 96,94% dan efisiensi yang didapat pada stasiun MRT Lebak Bulus adalah 96,99%.