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All Journal Jurnal Pengabdian Polinema Kepada Masyarakat ELPOSYS: Jurnal Sistem Kelistrikan

Ahmad Hermawan

Politeknik Negeri Malang

Author-ID : 5515779

Humanities Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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Instalasi Saklar PJU Otomatis Menggunakan Photocell di Komplek Permata Bandara Kab. Malang Sigit Setya Wiwaha; Muhammad Fahmi Hakim; Rhezal Agung Ananto; Ahmad Hermawan; Priya Surya Harijanto
Jurnal Pengabdian Polinema Kepada Masyarakat Vol. 9 No. 2 (2022): Jurnal Pengabdian Polinema Kepada Masyarakat
Publisher : UPT Penelitian dan Pengabdian Kepada Masyarakat Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jppkm.v9i2.142

Warga Perumahan Permata Bandara Pakis kab. Malang berjumlah sekitar 50 kepala keluarga, namun karena perumahan ini merupakan komplek baru dan ditujukan untuk keluarga baru kepala keluarga yang menempati rumah di komplek tersebut hanya berjumlah 20 kepala keluarga. Kondisi perumahan cukup sepi pada malam hari dan gelap. Mayoritas warga di perumahan permata bandara adalah pekerja kantoran yang lokasi kerjanya berada di kota Malang, Singosari, Lawang, Pandaan, bahkan ada yang di Surabaya. Kondisi ini menyebabkan pada saat mulai gelap yaitu malam hari terkadang warga masih belum sampai di rumah masing – masing sehingga kondisi perumahan sangat gelap. Bahkan pedagang keliling pun masih jarang lewat di sekitaran perumahan karena akses jalan masuk menuju perumahan belum memiliki akses penerangan yang cukup memadai. Instalasi PJU menggunakan saklar otomatis photocell ini merupakan solusi untuk bisa membuat perumahan lebih aman dan nyaman yaitu dengan membuat penerangan jalan yang bisa menyala secara otomatis tanpa perlu ada warga yang harus menyalakan secara manual. Karena penyalaan secara manual oleh warga akan terkendala saat hujan turun dan berbahaya terkena kejut listrik ketika membuka panel listrik utama saat basah. Penamabahan lampu jalan umum di akses menuju perumahan akan membuat pedagang keliling lebih merasa aman dan nyaman untuk melintasi jalan sehingga geliat ekonomi bisa semakin kuat di kawasan ini.

Analisis Aliran Daya Reconductoring Saluran Transmisi Paiton Kraksaan-Probolinggo 150 kV Terhadap Saluran Yang Terimbas Rohmanita Duanaputri; Ahmad Hermawan; Zulvina Arifah
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 2 (2022): ELPOSYS Vol. 9 No. 2 (2022)
Publisher : UPT - P2M POLINEMA

Provision of quality and sufficient electrical energy is something that must be done by PT. PLN (Persero). Based on data from PT. PLN (Persero), carried out work on replacing conductors on the Paiton – Kraksaan – Probolinggo transmission line from the TACSR 330 mm2 conductor with KHA 1190 A to 2xACCC/TW Copenhagen with KHA 2016 A. Reconductoring work is one of the efforts to uprating the transmission line by considering increasing load requirements. This reconductoring is carried out using the open circuit method or a total blackout in a circuit where the conductor is being replaced by taking into account the stages determined by PT. PLN (Persero). So that the power flow in the system must be considered when these conditions take place for the sake of service reliability or system reliability using a power flow simulator application, namely ETAP software. The simulation voltage tolerance with actual conditions is 5%. Next, analyze the power flow on the affected transmission line which is directly connected to the Kraksaan – Paiton – Probolinggo 150 kV transmission line based on voltage drop, transmission line losses and loading from each stage. As well as calculating the power transfer capability after and before reconductoring. The results of the simulation show that the most significant anomaly (deviation that should not be) is that there is a critical point loading of up to 89.220% on the Probolinggo - Gondangwetan channel when reconductoring has been carried out except for the Paiton - Kraksaan1 transmission line. Meanwhile, the value of power transfer capability increased after reconductoring, where the Paiton-Kraksaan1 and Paiton-Kraksaan2 channels increased by 63.91 MW, the Kraksaan - Probolinggo1 channel increased by 67.95 MW, and the Kraksaan - Probolinggo2 channel increased by 63.461 MW from previously

Audit Kelistrikan pada Gedung Administrasi Niaga (AB) dan Akuntansi (AC) Politeknik Negeri Malang Ahmad Hermawan; Roby Tri Stya Hutama; Budi Eko Prasetyo; Candra Wiharya
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 1 (2021): ELPOSYS vol.8 no.1 (2021)
Publisher : Politeknik Negeri Malang

This study aims to analyze the average consumption of electrical energy and the Intensity of Energy Consumption (IKE)and the effect of temperature of electrical equipment in the main panel of the AB and AC buildings on the applicable electrical standards in the AB and AC buildings of Politeknik Negeri Malang. From the research, the results of the average consumption of electrical energy in each building are 2591.96 kWh and 1799.74 kWh per month, the value of Energy Consumption Intensity (IKE) is 34.55 kWh / m2 and 34.11 kWh / m2, both results fall into the category of energy use. very efficient, all the equipment in the panels of the two buildings is in good condition according to the PLN SK DIR 520 2014 book, the highest temperature value of the safety equipment is 32.8 ᵒC at NH Fuse T. this is due to the current flowing of 34.29A, the value of the equipment with the lowest temperature of 27.8 C on MCB C16 with a maximum standard of 45 C, the current conductive capacity is still in accordance with using a 2.5 mm2 cable with KHA 46 A, while the load current for each branch is protected by MCB 10 A. For cooling in rooms that use AC The split is 28,000 BTU / hour and it is still below the standard of 38,000 BTU / hour

Analisis Resetting Relay Dan Load Presentase Terhadap Pola Pelaksanaan Dan Pemeliharaan Pada Gardu Induk 150 Kv Saketi Banten Rohmanu Dwi Kuncoro; Ahmad Hermawan; Rhezal Agung Ananto
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 2 (2021): ELPOSYS vol.8 no.2 (2021)
Publisher : UPT - P2M POLINEMA

The Saketi substation has three 150/70 kV power transformers with a capacity of 3x60 MVA with a frequency of 50 Hzwhere all three transformers have the capacity, transformer 1 60 MVA (PAUWELS TRAFO) has 3 feeders with an average load of 300 A, 10 MW, transformer 2 60 MVA (UNINDO) has 3 feeders with an average load of 200 A, 6.9 MW and transformer 3 60 MVA (UNINDO) has 4 feeders with an average load of 300 A, 10 MW. This calculation and simulation analysis is carried out aiming to find out the relay settings on each transformer under normal conditions and in a maintenance state on one of the transformers for a long period of time. From the results of the analysis and calculation, it was found that the OCR relay setting under normal conditions of the incoming 150 kV transformer transformers 1, 2, and 3 has a current setting value of 0.92 A and a time setting of 0.36 seconds. On the outgoing side the 20 kV transformers 1, 2, and 3 have a setting of 1,039 A and a time setting of 0.166 seconds.

Analisis Audit Energi Terhadap Intensitas Konsumsi Energi Listrik Sistem Pencahayaan dan Sistem Penyimpanan Ikan di Cold Storage Kabupaten Malang Asfari Hariz Santoso; Ahmad Hermawan; Sugeng Harianto
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021)
Publisher : Politeknik Negeri Malang

Energy audit is one of the processes in managing energy use to bec ome more efficient. The purpose of this study was to determine the potential for energy savings that can be carried out optimally and accurately in Cold Storage, Malang Regency. Data retrieval using a Web-based Power Quality Meter PM5110 which is carried out for 24 hours on weekdays, then the total consumption of kWh in one day reached 119,538 kWh, while the total usage of kWh in one month is 3586.14 kWh for the month of June and for the total usage for the period of one year is 43631.37 kWh. Regarding the value of energy consumption kWh in a period of one year, it can be generated by dividing the total energy consumed by the building in one year by the total gross floor area of the building. Based on the results of the IKE calculation in the Cold Storage Building, Malang Regency from the results before the recommendation of 34.91 kWh/m2/year and for the result after the recommendation is 174,841 kWh/m2/year, which is included in the very efficient category according to the ASEAN USAID 1987 standard. For energy saving opportunities in the lighting system and cooling system, it can be done by using energy-efficient lamps and changing the operating pattern in the cooling room.

Audit Energi dan Penilaian Kualitas Daya Pada Penerangan Jalan Umum Politeknik Negeri Malang Ahmad Hermawan; Galih Hardika Sakti; Ferdian Ronilaya; Satria Luthfi Hermawan
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022)
Publisher : Politeknik Negeri Malang

Public Street Lighting (PSL) is an important thing for campus residents especially in night time activities. PJU also function as the beauty and comfort of college student when doing activities / organization at night and also influencing the results of carried active by college student. PSL also serve to ease visions for campus guard so that it is easier to see or supervise the area around the campus from thieves or individuals who want to behave crimefully at State Polytechnic of Malang

Studi Pengaruh Pembebanan sebagai Dasar Scheduling Maintenance untuk Meminimalisir Susut Umur Transformator 1 GI Blimbing Ahmad Hermawan; Rachmat Sutjipto; Shafira Irmadhani Hidayat; Florentina Berlian Suryaningtyas
Elposys: Jurnal Sistem Kelistrikan Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020)
Publisher : Politeknik Negeri Malang

Transformer 1’s load in Blimbing Substation has increased significantly each year. In 2016 until 2018 the load on Transformer 1 was 33.81%, 43.53%, and 71.75%. The amount of this transformer’s load will affect the hot spot temparature. Hot spot temperature is also affected by environmental temperature. In this study, load curve method was used then followed by calculate the loss life of transformer. From the calculation, known that the higher of hot spot temperature, the higher impact to loss life of transformer too. In 2018, the highest loading data was on November and it was obtained loss life of transformers by 0.649% per month, so it is estimated that this Transformer 1 at Blimbing Substation has a lifespan of 30 years 9 months. According to IEC 60076-7 normal life of transformers with loading under nominal is 20.55 years or 180000 hours. To minimize loss life of transformer or in other words extend the life time of transformer can be done by scheduling maintenance. Scheduling maintenance is the activity which monitoring the main transmission material on scheduled and provided a treatment based on the monitoring results. It can be concluded that the lifespan of Transformer 1 at Blimbing Substation can exceed the specified standard. The one of factors that affect this, is scheduling maintenance.

Analisis Power Quality Sistem Kelistrikan Pada Apartemen Malang City Point Zahra Mulia Sari; Ahmad Hermawan; Sapto Wibowo
Elposys: Jurnal Sistem Kelistrikan Vol. 7 No. 3 (2020): ELPOSYS vol.7 no.3 (2020)
Publisher : Politeknik Negeri Malang

The use of equipment with a high non-linear load causes a decrease in the quality of power (Power Quality) at Malang City Point Apartment. Power quality analysis is an important requirement in the electrical system and needs special attention to save energyand costs. Savings can be achieved by reducing or even eliminating losses resulting from the use of non-linear loads. This thesis aims topresent the results of an analysis of power quality conditions at Malang City Point Apartments. This analysis includes voltage, current,voltage and current imbalance, power factor, current THD and measured voltage. The system is designed using Web - Based PowerQuality Meter (PM 5110) as a measurement tool, then the results are analyzed and compared with existing standards to evaluate powerquality in Malang City Point Apartments. Among the various power quality problems measured, it was found that the main problems ofpower quality in Malang City Point Apartments were the occurrence of overvoltages and current harmonic distortion. So it is necessary todo repairs on this to overcome the overvoltage by reducing the operation of equipment that has a large load and repairing neutralconductors. Furthermore, to reduce the system harmonics, it is designed by designing a single tuned passive filter and simulated using theETAP software version 16.0.0

Analisis Perbaikan Sistem Pentanahan Tower 70 kV pada Transmisi Wlingi - Blitar Budi Eko Prasetyo; Ahmad Hermawan; Safira Azizah
Elposys: Jurnal Sistem Kelistrikan Vol. 9 No. 3 (2022): ELPOSYS vol.9 no.3 (2022)
Publisher : Politeknik Negeri Malang

High Voltage Air Line (in Indonesian known as SUTT) is defined as part of an electric power transmission network that is likely to be struck by lightning. This condition may lead to back flashover (BFO) phenomenon if the grounding value in the transmission is found to be high (>5 Ohms) and may also generate equipment failure. This research was intended to analyze the grounding improvement in tower T17, so that traveling-wave voltages may not result in failure of the main equipment at the substation, specifically the transformer. The value of the traveling wave at the substation was measured through simulation by means of the ATP Draw application in tower T17 to the substation. The grounding value may be reduced by increasing and widening the distance between the electrodes. The value obtained by modeling 4 electrodes with a distance of 0.5 meter was amounted to 1.73 Ohms. Furthermore, modeling 3 electrodes with a distance of 1 meter had successfully generated a value of 1.06 Ohm, and a value of 1.67 Ohm was also successfully obtained through modeling 2 electrodes with a distance of 2 meters. The ground resistance with a value of 67.05 Ohms that has not been repaired will lead to back flashover (BFO) caused by lightning strikes. However, this may be reduced properly with a lightning arrester which is capable of cutting the overvoltage at the substation, so that the voltage entering the transformer is below the BIL (Basic Insulation Level) value.

Kajian Teknis Pemeliharaan Transformator Arus Pada Gardu Induk Pltu Tanjung Awar – Awar Babat Rhezal Agung Ananto; Kalam Syamsul Arifin; Ahmad Hermawan; Popong Effendrik
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 1 (2023): ELPOSYS vol.10 no.1 (2023)
Publisher : Politeknik Negeri Malang

The current transformer is an electric power instrumentation device that functions to change a higher current value to a lower value for protection and measurement purposes. Field conditions and service life cause the current transformer to decrease and not function. Therefore, it is important to do this research to determine the current condition of the current transformer. The method used to obtain current transformer quality indicators is the insulation resistance test method and the tangent delta test method. The results of testing the insulation resistance of current transformers at GI Tanjung Awar Awar Babat in 2020-2021 using the VDE standard (Catalogue 228/4) and IEEE std 43-2000 show that the insulation resistance value of all current transformers has increased by an average of 81900Ω from the previous period but, this value is still in good criteria, namely 170 + 1 MΩ and there is an increase in the current transformer grounding resistance test from the previous period with an average of 0.176 however, according to the PLN book 605.K/DIR/2010 the results of the ground resistance test have good criteria. of < 1. Based on ANSI C 57.12.90 and IEEE C57.152-2013 standards, the tan delta test results are still in good condition because the tan delta value is not more than 0.5%. Current transformer tan delta testing in 2020-2021 has decreased, indicating that the insulation performance of current transformers in 2021 is better than in 2020.

Co-Authors Afriana Viro Fadilla Alif fitrah Asfari Hariz Santoso Aulia Nur Rahma Budi Eko Prasetyo Candra Wiharya Chandra Wiharya Fahmi Hakim, Muhammad Fandi Kurniawan Florentina Berlian Suryaningtyas Galih Hardika Sakti Jamik Apriliasari Kalam Syamsul Arifin Kumala Mahda Habsari Mohammad Noor Hidayat Mudjiono Mudjiono Muhammad Aden Herry Prakoso Muhammad Azzam Wian Panantuan Muhammad Ilham Rifqi Nurhayati Popong Effendrik Priya Surya Harijanto Rachmat Sutjipto Rhezal Agung Ananto Roby Tri Stya Hutama Rohmanita Duanaputri Rohmanu Dwi Kuncoro Ronilaya, Ferdian Rosina Ahda Dini Safira Azizah Sapto Wibowo Satria Luthfi Hermawan Shafira Irmadhani Hidayat Siffa Seftiana Sigit Setya Wiwaha Sugeng Harianto Wijaya Kusuma Zahra Mulia Sari Zulvina Arifah

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