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All Journal Jurnal Pengabdian Polinema Kepada Masyarakat Jurnal ELTEK ELPOSYS: Jurnal Sistem Kelistrikan Jurnal Teknik Ilmu dan Aplikasi Jurnal Ekonomi, Bisnis, dan Akuntansi

Sungkowo, Heri

Jurusan Teknik Elektro, Politeknik Negeri Malang

Author-ID : 1287992

Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Published : 12 Documents Claim Missing Document

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Title

Analisis Penggunaan Energi Listrik di Gedung Instalasi Bedah Sentral dan Perawatan Intensif Slamet Nurhadi; Heri Sungkowo; Nunun Setyo Nadia Putri
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022)
Publisher : UPT - P2M POLINEMA

Energy audit is a technique for calculating Energy Consumption Intensity (IKE) and aims to determine the energy use profile of a building and seek efforts to increase energy efficiency without reducing the comfort level of the building. The analytical method used is to make observations at Waluyo Jati Hospital by measuring the building area and ensuring appropriate lighting. Based on the Initial Energy Audit (AEA) which has been calculated and measured, the value of the intensity of energy has not met the standard because it is below the IKE standard for hospitals, which is 32.90617486 kWh/m2 on account calculations and 31.51399876 kWh /m2 on measurements that have been made, while the hospital IKE standard is 380 kWh/m2. The lighting system in the building still does not meet the standard of lighting strength according to the Regulation of the Minister of Health of the Republic of Indonesia No. 7 of 2019 concerning hospital environmental health. And for the lighting system it is not optimal and efficient, where the power consumption before repair according to the calculation is 4343.04 kWh, while after repair it becomes 4181.76 kWh / month 4343.04 kWh. The way to make energy use more efficient is to utilize natural light from the sun and change lamps and install energy-saving stickers in every corner of the room in the Central Surgical Installation and Intensive Care building at Waluyo Jati Kraksaan Hospital

Analisis Manuver Penyulang Selecta untuk Menjaga Nilai Keandalan Sistem Distribusi di PT. PLN (Persero) ULP Batu Sukamdi; Awan Setiawan; Heri Sungkowo
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022)
Publisher : UPT - P2M POLINEMA

PT. PLN (Persero) ULP Batu, The Selecta feeder is one of the 7 feeders in the distribution system that supplies several areasin PT. PLN (Persero) ULP Batu. In the Selecta feeder themselves, the number of error that occurred from January to November 2020 wasfourteen times, with details of one time temporary error and thirteen times permanent errors. Delegating a portion of the load from feederswhich got error can have an impact on feeders which are working normally. This can cause a voltage drop on the feeder for maneuveringpurposes so that the distribution of electric power becomes less than optimal and requires some other loads to be temporarily transferredto other feeders. Based on the problems that occur, it is necessary to analyze the maneuver to reduce the impact of disruption on TheSelecta feeder and maintain the reliability value of the distribution system at PT. PLN (Persero) ULP Batu.

Perencanaan Rekonfigurasi Penyulang Mojoanyar Dengan Pengalihan Beban Ke Penyulang Elkishi Di Daerah Kawasan Industri Mojosari Pada PT PLN (Persero) UP3 Mojokerto Mochammad Mieftah; Heri Sungkowo; Mudjiono
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022)
Publisher : UPT - P2M POLINEMA

Mojosari is a customer area consisting of industrial customers and high power customers. Currently, the demand for electricalenergy in the area is supported by the Mojoanyar Feeder, which is supplied by the Transformer I Pulling Substation I with a capacity of 30MVA. The reconfiguration of the feeder was carried out for several reasons, one of which was the addition of power from an industrialcustomer in the Mojoanyar Feeder area of PT PLN (Persero) ULP Mojosari, namely PT Sinar Karya Duta Abadi (Arwana). If there is additionalpower, the additional load capacity also increases in a feeder. If the load capacity increases, the current flowing in the conductor alsoincreases. It can be seen from the loading data in February 2021 that the maximum current flowing in the Mojoanyar Feeder during the dayis 210 A, the maximum current flowing in the Mojoanyar Feeder at night is 215 A. And if there is a disturbance near the area, the MojoanyarFeeder will not maneuver because the load is close to the maximum. Therefore, PT PLN (Persero) ULP Mojosari plans a reconfiguration ofthe feeder by transferring the burden of the Mojoanyar feeder.The analysis was carried out using the simulation program ETAP Power Station12.6.0. and manual calculations according to standards. After being reconfigured, the Mojoanyar Feeder experienced a decrease in the valueof the voltage drop from 8.78% to 7.86%. Mojoanyar feeders experienced a decrease in losses of 5.84% compared to before thereconfiguration of 10.4%

Analisis Komparasi Performa Bohlam LED Berbagai Merk Rahman Azis Prasojo; Hafiz Furqoni; Muhammad Fahmi Hakim; Hari Kurnia Safitri; Heri Sungkowo
Elposys: Jurnal Sistem Kelistrikan Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020)
Publisher : Politeknik Negeri Malang

LED bulb are increasingly being adopted not only because of their good efficacy, but also because they are known to havehigh controllability. LED lighting has developed rapidly in recent years to achieve more efficient and reliable LED performance. Severalstudies have conducted experiments to obtain the characteristics and performance of LED lamps. However, study comparing theperformance of LED bulbs with various manufacturer and considering the price factor has not been found. In this study, the performancecomparison of six LED bulb manufacturers that are commonly found in the Indonesian market were conducted. Each brand is sampledfrom three rated powers. The results of this study show a weak correlation between the price and performance. Nonetheless, theperformance of LED bulb from different manufacturers were observed.

Analisis Perencanaan Capacitor Bank Untuk Perbaikan Faktor Daya Pada Pusat Perbelanjaan Blitar Square Sulistyowati; Muhammad Fahmi Hakim; Ikfi Asmaul Khusna; Heri Sungkowo
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v8i3.80

From the research that has been done at the Blitar Square Shopping Center, it was found that the power factor value is still below the standard with an average value of 0.711. Therefore, it is necessary to improve the power factor by installing a capacitor bank. The calculation results show that global compensation requires 12 capacitor banks with a rating of 10.4 kVAR, while sectoral compensation on the chiller load panel requires 7 capacitor banks with a rating of 10.4 kVAR and the foodmart load panel requires a capacitor bank with a rating of 10. 4 kVAR is 6 pieces. In addition, the installation of a capacitor bank also results in an increase in the voltage value in the system, this voltage increase is still below the permissible standard of ± 5%. The simulation of installing a capacitor bank on global compensation can improve the power factor value from 72.99% to 96.97%, with a voltage increase of 0.479% from the initial value of 397 V to 398.9 V, and a decrease in the current value of 24.645% from the initial value. 330.7 A to 249.2 A. While the simulation of installing a capacitor bank in sectoral compensation can improve the power factor value from 72.99% to 93.57%, with a voltage increase of 0.401% from the initial value of 397 V to 398.6 V , and a decrease in the value of current by 21.593% from the initial value of 330.7 A to 258.1 A.

Analisis Koordinasi Relai Proteksi Transformator I 150/20kV GI Bumicokro Akibat Uprating Daya 50MVA Menjadi 60MVA Anang Dasa Novfowan; Mochammad Mieftah; Heri Sungkowo
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 2 (2023): ELPOSYS vol. 10 no. 2 (2023) (In Progress)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v10i2.2521

Nowadays, Electricity is a important thing for people. As the load grown at the Bumicokro Substation, transformer I had replaced from 50 MVA to 60MVA. Because of that, the relays protection had to be resetting because of the changes of nominal current. Therefore, the objectives of this research are calculated and simulated the setting of OCR (Over Current Relay), GFR (Ground Fault Relay), SBEF (Stand by Earth Fault), differential and REF (Resistance Earth Fault) relay. ETAPv12.6 software is used to get the relay coordination Outgoing 22kV, Incoming 150kV, OCR (Over Current Relay), GFR (Ground Fault Relay), SBEF (Stand by Earth Fault), differential and REF (Resistance Earth Fault) after the calculation and simulation finished, then the result indicated the appropriate conditions to overcome the distrubance at the transformer according to the protection zone. The result of current setting for Differential relay is 2,88A, Primary REF is 0,5A, Secondary REF is 1,1A, 150kV OCR is 3,5A, and the moment setting is 28A, 22kV OCR 150kV 4,7A, GFR 1,44A, SBEF 1,0A. While, the result of time setting for Differential relay, Primary REF, Secondary REF are instant, for 150kV OCR is 1,06s, 22kV OCR is 1,07s, GFR 1,51s, and SBEF 8,8s.

Co-Authors Abd. Rasyid Syamsuri Aldiansyah Dwi Teguh Setyawan Anang Dasa Novfowan Awan Setiawan Bakti Indra Kurniawan Budi Aji Edo Enka Putra Pradana Epiwardi Epiwardi Epiwardi Epiwardi Epiwardi Fahmi Hakim, Muhammad Hafiz Furqoni Hafiz Furqoni Hari Kurnia Safitri I Ketut Suada Ikfi Asmaul Khusna Mieftah, Muhammad Mochammad Mieftah Mudjiono Mudjiono Nunun Setyo Nadia Putri Nurhadi - Nurhadi, Slamet Rachmat Sutjipto Rahman Azis Prasojo Rahman Azis Prasojo Reni Dwi Lestari Ruwahjoto Ruwahyoto Sukamdi Sulistyowati Wiwiek Rabiatul Adawiyah

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