52 LPPM - Universitas Narotama ISSN : 2594 - 4777 (Online) 2597 - 4742 (Print) https://jurnal.narotama.ac.id/index.php/scj/index The Spirit of Society Journal International Journal of Society Development and Engagement The Spirit of Society Journal Volume 6, Number 1 September 2022 30GT Fishing Vessel Electrical System Design Mohammad Basuki Rahmat1, Joessianto Eko Poetro2*, Annas Singgih Setiyoko3, Rona Riantini4, Hendro Agus Widodo5, Purwidi Asri6 Department of Marine Electrical Engineering, Politeknik Perkapalan Negeri Surabaya, Indonesia Corresponding author: joessianto@ppns.ac.id2* mbasuki.rahmat@ppns.ac.id1, asinggih@ppns.ac.id3, hendro.aw@ppns.ac.id5, purwidi@ppns.ac.id6 Abstract: The ship electrification process is the process of installing or providing electric power to supply all the electrical power needs for ships. In general, main electricity supply will be provided, and emergency supplies in the form of batteries or emergency generators that are able to survive supplying emergency loads such as navigation equipment, navigation lights, and emergency lighting for about 3 hours. Another consideration in the electrification process on fishing vessels is also aimed at reducing dependence or even replacing conventional fuel. Of course, not all machines or equipment that are usually operated with conventional fuel can be directly replaced with electrical energy. The implementation of electrification on fishing boats takes into account the technological and cultural aspects of fishermen so that not all of them will be directly replaced by electrical energy. Keywords: ship; electrification; fishing vessels INTRODUCTION Indonesia is the largest archipelagic country in the world, has a total of 13,466 islands, a land area of 1,922,570 km2 and a water area of 3,257,483 km2. The data is based on data from the Geospatial Information Agency (BIG). Indonesia's marine area reaches 63% of the total area of the Republic of Indonesia which is one of the potential fields for capture fisheries (S. Irianto et al., 2021). To support the increase in marine capture fisheries, it is necessary to fulfill adequate facilities and infrastructure, such as ships, fishing gear, fishing ports, supporting industries and the big role of various parties to develop it. The State Fisheries Management Area of the Republic of Indonesia or often abbreviated as WPP NRI is a fishery management area for fishing, conservation, research, and fishery development which includes inland waters, archipelagic waters, territorial sea, additional zones, and the Indonesian exclusive economic zone (ZEEI). Several studies have conducted studies on activities in fishing ports. According to (Suherman & Dault, 2009) PPN Brondong has a strategic role in the development of fisheries and marine affairs, namely as a center or center for marine fisheries activities, especially those in the Lamongan Regency, East Java. PPN Brondong, apart from being a liaison between fishermen and users of the catch, both direct and indirect users such as: traders, processing factories, restaurants and others, is also a place for interaction of various interests of the coastal community located around PPN Brondong. Brondong PPN that functions properly will be a beneficial meeting point (terminal point) between economic activities at sea and economic activities on land. While fishing areas by fishermen are mostly in the Masalembu, Makasiri, Kramean and around Bawean areas. The length of the day at sea is 7-12 days, apart from one day fishing (Mahulette & Widodo, 2011). https://jurnal.narotama.ac.id/index.php/scj/index mailto:joessianto@ppns.ac.id mailto:mbasuki.rahmat@ppns.ac.id mailto:asinggih@ppns.ac.id mailto:hendro.aw@ppns.ac.id mailto:purwidi@ppns.ac.id Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 53 The Spirit of Society Journal Volume 6, Number 1 September 2022 In this study, a study of electrification was conducted. Where the consideration in the electrification process on fishing vessels is aimed at reducing dependence or even replacing conventional fuel. The implementation of electrification on fishing boats takes into account the technological and cultural aspect of fishermen so that not all of them will be directly replaced by electrical energy figures should be cited in numerical order. METHODOLOGY This research method was prepared by considering several previous studies with the following steps (Cadick et al., 2012; Lee et al., 2014; Lim et al., 2019; Zahedi & Norum, 2013): First time doing Needs Identification. The occurrence of overfishing (fully-exploited and over- exploited) in the majority of WPPNRI makes the first step to conduct electrification studies on fishing gear so that they are able to explore areas that are still moderately-exploited or towards the open sea. Based on the roaming area and the appropriate design category, the technology needed for fishing, exploration and safety aids will be determined, and then the electricity needs will be calculated. The next step is mapping. This activity was started by conducting field surveys and interviews at one of the fishing ports in East Java to better map out the types of vessels and fishing gear used. This information will be useful for consideration of the placement and size of the module/prototype designed according to the general dimensions of the ship. The next stage is design and prototype. From the data collection in the 2 steps above, the design and prototype of the required electrification system will then be made with a possible combination of alternative energy uses. The final step is to do the analysis. The analysis is carried out on the principle of benefits, advantages and disadvantages of the electrification system compared to the conventional system. Including consideration of the weight and size of the installed module/prototype as input regarding reduction of catch and safe installation. RESULTS AND DISCUSSION The object of research is a fishing vessel with the following specifications: • Length overall (LOA): 21.00 m • Length waterline (LWL): 18.95 m • Breadth (B): 4.10 m • Draft (T): 1.60 m • Speed: 7 – 10 knots • Main Motor:170 HP/1500 rpm • Fuel tank : 3500 ltr • Fresh Water Tank : 2500 ltr Ships with the above specifications are designed to sail (fish) for 3-5 days with a crew of 16 people. 1. Load Identification The load/equipment that uses electrical energy is shown in table 1 and table 2. The equipment installed on this ship does not operate simultaneously. some equipment operate continuously (continuous) and some operate temporarily (intermittent). From this loading data, it will be used in determining the power supply capacity requirements that must be able to supply the installed equipment. 2. Loading Balance Calculation Load calculation is carried out by considering the loading characteristics of each equipment. There are equipments that operate continuously (continuous) and there are those that operate temporarily (intermittent). This data is used to determine the capacity requirements of all power sources that must be able to supply the installed equipment. Calculation of the need for power sources refers to Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 54 The Spirit of Society Journal Volume 6, Number 1 September 2022 the terminology of the rules of the Indonesian Classification regarding the need for electrical power (Rules For Classification And Construction Part 1 Vol. IV Rules For Electrical Installation, 2022), chapter 3. The power balance of electrical equipment must be carried out to ensure the adequacy of power generating units, storage units and units that transform electrical energy. The power balance calculation is done by detailing which loads operate continuously and which operate intermittently, as well as considering the diversity factor for intermittent loads. Table 1. DC power load data Table 2. DC power load data No Items Vol. (unit) Power/Unit (W) Voltage (V) 1 Emergency Lamp 3 15 12 2 Mast light 2 40 12 3 Side light 2 40 12 4 Stern light 1 40 12 5 Anchor light 1 40 12 6 Red light 1 40 12 7 HF radio 1 75 12 8 GPS Map + Fish Finder 1 75 12 9 Radar 1 75 12 10 SSB Radio 1 100 12 11 Wiper 1 45 12 12 Clear View Screen (CVS) 1 45 12 13 Horn 1 25 12 14 Bilge Pump 2 150 12 No Item Vol. (unit) Power/Unit (W) Voltage (V) 1 Wheel House Lamp 1 20 220 2 Lampu Crew room atas 1 20 220 3 Captain room Lamp 1 15 220 4 Lampu Crew Room bawah 2 15 220 5 Gang Way Lamp 2 15 220 6 Canopy Lamp 1 15 220 7 Stering gear Lamp 1 15 220 8 Crew Store Lamp 1 15 220 9 Lampu sorot AC 2 100 220 10 Engine room Lamp 1 15 220 11 Pompa Dinas Umum 1 750 220 12 Blower Kamar mesin 2 250 220 13 Bilga Pump AC 1 550 220 14 Fresh Water Pump 1 300 220 Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 55 The Spirit of Society Journal Volume 6, Number 1 September 2022 The power balance calculation is expressed in tabular form and is called the Electric Power Consumption Table (Sakai et al., 1989). In this calculation, the first step is to separate the use of loads into continuous and intermittent categories. After being separated, for each category, the load power is added up. Especially for intermittent loads, after meeting the total load power value, it is then multiplied by the diversity factor. The value of the diversity factor based on discussions with the engineering department is given a value of 0.8 which indicates a safe and realistic number from the experience of the engineering department. So at the time of sailing the total power is: PT= Pcont. + (KxPint.) (1) PT= 525 + (0,8 x 540) PT= 957 W When this power is supplied by a battery that has a voltage of 12 V, the current that flows is: 𝐼𝐼 = 𝑃𝑃 𝑉𝑉 (2) 𝐼𝐼 = 957 12 𝐼𝐼 = 79,75 𝐴𝐴 The complete results of power balance calculations for DC loads are summarized in table 3 and for AC loads in table 4. With a calculated current value of 79.75 A, the battery with a capacity approaching is a battery with a capacity of 100 Ah. This 100 Ah battery when used to supply a current of 79.75 A will be able to last for 1 hour 15 minutes. Batteries with a capacity of 100 Ah can use dry or wet types. Based on the two tables (table 1 dan 2), the generator needs to supply both AC and DC loads can be calculated. The calculation of the generator power requirement is to consider the optimal power that is usually used by the generator for operation of 0.8 of its maximum power so that the generator power is obtained: PGENSET = (Pload-DC + Pload-AC)/0,8 (3) = (957 + 2140)/0,8 = 3097/8 W = 3871,25 W Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 56 The Spirit of Society Journal Volume 6, Number 1 September 2022 Table 3. DC load power balance APPARATUS N o. LOAD DEMAND FACTOR (%) CONSUMPTION POWER (WATT) O ffs et O ut pu t In pu t Going Harbor In & Out REST IN PORT % C on t. In te rm it. % C on t. In te rm it. % C on t. In te rm it. No. Item (W) (W) (W) (W) (W) (W) (W) (W) 1 Emergency Lamp 3 15 15 100 45 100 45 100 45 Total 3 45 45 45 II. NAVIGATION LIGHT 1 Mast light 2 40 40 100 80 - 100 80 - 100 - 80 2 Side light 2 40 40 100 80 - 100 80 - 100 - 80 3 Stern light 1 40 40 100 40 - 100 40 - 100 - 40 4 Anchor light 1 40 40 100 - 40 100 - 40 100 40 - 5 Red light 1 40 40 100 - 40 100 - 40 100 40 - T o t a l 7 200 80 200 80 80 200 COMMUNICATION & NAVIGATION EQUIP. 1 HF radio 1 75 75 100 75 - 100 75 - 100 - 75 2 GPS Map + Fish Finder 1 75 75 100 75 - 100 75 100 - 75 3 Radar 1 75 75 100 75 - 100 75 100 - 75 4 Wiper 1 45 45 100 - 45 100 - 45 100 - 45 5 CVS 1 45 45 100 - 45 100 - 45 100 - 45 6 Horn 1 25 25 100 - 25 100 - 25 100 - 25 7 SSB Radio 1 100 100 100 100 - 100 100 - 100 - 100 T o t a l 7 325 115 325 115 440 IV. PUMP, VENT, ETC 1 Bilga Pump 2 150 300 100 - 300 100 - 300 100 300 - T o t a l 2 300 300 300 Continuous Load Total (W) 525 525 380 Intermitten load Total (W) 540 540 685 Diversity factor 0,8 0,8 0,8 Equivalent cont. power (W) 432 432 548 TOTAL REQUIRED POWER (Watt) 957 957 928 TOTAL REQUIRED POWER (Ampere) 79,75 79,75 77,33 Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 57 The Spirit of Society Journal Volume 6, Number 1 September 2022 Table 4. DC load power balance 3. Determination of Delivery and Security Determination of the conductor of the electric power system begins with calculating the current absorbed by each load. Results From the table above, the current required load is calculated and is shown in table 5. The total amount of current that must be supplied by the battery is 88.75 A, so the base/mains safety that must be used is a fuse with a capacity of 100 A. With this fuse capacity, based on the BKI APPARATUS No. LOAD DEMAND FACTOR (%) CONSUMPTION POWER (WATT) O ffs et O ut pu t In pu t A Going Harbor In & Out Rest In Port % C on t. In te rm it. % C on t. In te rm it. % C on t. In te rm it. No Item (W) (W) (W) (W) (W) (W) (W) (W) I GENERAL LIGHT 1 Wheel House 1 20 20 100 20 100 - 20 100 20 2 Crew room atas 1 20 20 100 20 100 20 100 20 3 Captain room 1 15 15 100 15 100 15 100 15 4 Crew Room Bawah 2 15 30 100 30 100 30 100 30 5 Gang Way 2 15 30 100 30 100 30 100 30 6 Kanopi 1 15 15 100 15 100 15 100 15 7 Stering gear 1 15 15 100 15 100 15 100 15 8 Crew Store 1 15 15 100 15 100 15 100 15 9 Lampu sorot AC 2 100 200 100 200 100 200 100 200 10 Engine room 1 15 15 100 15 100 15 100 15 Total 375 375 375 II GENERAL EQUIPMENT 1 Pompa Dinas Umum 1 750 750 100 - 750 100 - 750 100 - 750 2 Blower Kamar mesin 2 250 250 100 500 100 500 100 500 3 Bilga Pump AC 1 550 550 100 550 100 550 - 100 550 4 Fresh Water Pump 1 300 300 100 - 300 100 - 300 100 - 300 Total 1050 1050 1050 1050 550 1550 Continuous Load Total (W) 1050 1050 550 Intermitten load Total (W) 1425 1425 1925 Deversity factor 0,80 0,80 0,80 Equivalent Cont. Power (W) 1140 1140 1540 TOTAL REQUIRED POWER (Watt) 2140 2140 2090 Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 58 The Spirit of Society Journal Volume 6, Number 1 September 2022 regulation (Rules For Classification And Construction Part 1 Vol. IV Rules For Electrical Installation, 2022), parts 5, copper conductors used is a cross-sectional area of 50 mm2 which has a current- carrying capability of 133 A when arranged with other measuring cables/control cables, 104 A when arranged with other power lines, and 157 A when separated from other wiring. While the busbar used to divide the load is 15 mm x 3 mm which has the ability to carry a current of 200 A. The conductor and safety values above are installed for each battery, if the number of batteries is added to increase capacity Table 5. Calculation of Current Value at DC Load Voltage 12 V The total amount of current that must be supplied by the battery is 88.75 A, so the base/mains safety that must be used is a fuse with a capacity of 100 A. With the capacity of the fuse, based on the BKI regulation, (Rules For Classification And Construction Part 1 Vol. IV Rules For Electrical Installation, 2022) parts 5, copper conductors used is a cross-sectional area of 50 mm2 which has a current- carrying capability of 133 A when arranged with other measuring cables/control cables, 104 A when arranged with other power lines, and 157 A when separated from other wiring. While the busbar used to divide the load is 15 mm x 3 mm which has the ability to carry a current of 200 A. The conductor and safety values above are installed for each battery, if the number of batteries is added to increase the capacity (ampere-hour, Ah) it must be installed safety and delivery. Table 6. Determination of Safety and Conductor For DC Load Voltage 12 V No Items Vol. (unit) Daya/ Unit (W) Current (A) Rating Fuse (A) Conductor (mm2) 1 Emergency Lamp 3 15 3,75 4 1,5 2 Mast light 2 40 6,67 8 1,5 3 Side light 2 40 6,67 8 1,5 No Items Vol(unit) Power/Unit (W) Current (A) 1 Emergency Lamp 3 15 3,75 2 Mast light 2 40 6,67 3 Side light 2 40 6,67 4 Stern light 1 40 3,33 5 Anchor light 1 40 3,33 6 Red light 1 40 3,33 7 HF radio 1 75 6,25 8 GPS Map + Fish Finder 1 75 6,25 9 Radar 1 75 6,25 10 SSB Radio 1 100 8,33 11 Wiper 1 45 3,75 12 Clear View Screen (CVS) 1 45 3,75 13 Horn 1 25 2,08 14 Bilge Pump 2 150 25,00 TOTAL 88,75 Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 59 The Spirit of Society Journal Volume 6, Number 1 September 2022 4 Stern light 1 40 3,33 4 1,5 5 Anchor light 1 40 3,33 4 1,5 6 Red light 1 40 3,33 4 1,5 7 HF radio 1 75 6,25 8 1,5 8 GPS Map + Fish Finder 1 75 6,25 8 1,5 9 Radar 1 75 6,25 8 1,5 10 SSB Radio 1 100 8,33 10 1,5 At the load supplied by the AC generator, for wiring efficiency it is necessary to group the load on the conductor group. The conveying group is intended to supply loads from adjacent conveyance locations and lines. Based on the load grouping based on the conductor that supplies it in the table 6, it can then be determined the size of the conductor and the required safety. For alternating current (AC) loads, the conductors installed for each group use a minimum cross-sectional area of 1.5 mm2 which has a maximum current carrying strength of 12 A when several conductors are installed close together. Based on the total value of the secured current of 14.72 A, the generator set outgoing safety is 16 A. While the busbar as a load divider is used which is 15 mm x 3 mm which has a maximum current carrying strength of 200 A. To connect the output a generator with a busbar is used as a conductor with a cross-sectional area of 2.5 mm2 which has a maximum current carrying strength of 25 A. With a current of 14.72 A and a load voltage of 220 V, the generator needs as a power supplier are: P = V x I x 𝑐𝑐𝑐𝑐𝑐𝑐φ (4) 𝑃𝑃 = 220 𝑥𝑥 14,72 𝑃𝑃 = 3238,4 𝑊𝑊𝑊𝑊𝑊𝑊𝑊𝑊 Gensets, under normal operating conditions are usually operated at 80% of their capacity. Overhead 20% is used as a backup to anticipate loads which in their starting conditions require relatively high starting currents, usually motor loads. Thus, the capacity of the generator required is equal to; P = 3238,4/0,8 Watt P = 4048 Watt With this power requirement, generators with a power range of 5000 Watt are widely available in the market, both premium and gas fueled. Table 7. the summary result of the electrical design No Items (Conductor grouping) Vol. (unit) Power/unit (W) Current/Load (A) Load Current (A) 1 Wheel House Lamp (1) 1 20 0,09 0,09 2 Crew upper room lamp(1) 1 20 0,09 0,09 3 Captain room Lamp (2) 1 15 0,07 0,07 4 Crew bellow Room lamp (2) 2 15 0,14 0,28 5 Gang Way Lamp (1) 2 15 0,14 0,28 6 Canopy Lamp (1) 1 15 0,07 0,07 7 Steering gear Lamp (3) 1 15 0,07 0,07 8 Crew Store Lamp (3) 1 15 0,07 0,07 9 Spotlight AC (4) 2 100 0,91 1,82 Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 60 The Spirit of Society Journal Volume 6, Number 1 September 2022 CONCLUSION In planning the electrical system, it is very important to pay attention to AC loads and DC loads. DC load, namely navigation and safety equipment, is supplied by a battery with a capacity of 100 AH with a duration of 1 hour 15 minutes. While the AC load is supplied by a generator set with a capacity of 5000 Watt. Meanwhile, an AC load will receive a supply from a generator with a capacity of 5000 Watt. Where there are several equipment whose wiring is combined. The conductors used have a cross- sectional area of 1.5 mm2 except for the DC bilge pump which requires a conductor with a cross- sectional area of 2.5 mm2. Acknowledgments: Thanks are given to the Ministry of Education and Culture for funding this initial research. Also addressed to the leadership of PPNS who supported the implementation of the initial research activities. And lastly, for not to forget to support the shipyard partners in Banyuwangi. Conflicts of Interest: The researchers stated there was no conflict of interest. Everything is done in his capacity as a researcher and observer of shipping issues and supporting technology. REFERENCES Rules For Classification And Construction Part 1 Vol. IV Rules For Electrical Installation, IV (2022). www.bki.co.id Cadick, J., Capelli-Schellpfeffer, M., Neitzel, D., & Winfield, A. (2012). Electrical Safety Handbook, 4th Edition. McGraw-Hill Professional. https://doi.org/doi:10.1036/9780071745147 Lee, D. K., Jeong, Y. K., Shin, J. G., & Oh, D. K. (2014). Optimized design of electric propulsion system for small crafts using the differential evolution algorithm. International Journal of Precision Engineering and Manufacturing - Green Technology. https://doi.org/10.1007/s40684-014-0029-9 Lim, C. og, Park, B. cheol, Lee, J. chul, Kim, E. S., & Shin, S. chul. (2019). Electric power consumption predictive modeling of an electric propulsion ship considering the marine environment. International Journal of Naval Architecture and Ocean Engineering. https://doi.org/10.1016/j.ijnaoe.2019.02.011 Mahulette, R. T., & Widodo, A. A. (2011). POTENSI TANGKAPAN IKAN LAUT PADA TEMPAT PELELANGAN IKAN DI PULAU JAWA, BALI DAN NUSA TENGGARA BARAT. Jurnal Kebijakan Perikanan Indonesia. https://doi.org/10.15578/jkpi.3.2.2011.159-168 S. Irianto, B., Warka, M., & Yudianto, O. (2021). Law Enforcement in Indonesia’s Exclusive Economic Zone in the Framework of Indonesia’s National Interest in the Marine Sector. International Journal of Multicultural and Multireligious Understanding. https://doi.org/10.18415/ijmmu.v8i9.3010 Sakai, H., Akizawa, H., Kitano, Y., & Yamane, K. (1989). Study on Electric Power Consumption Table for Fishing and Training Vessel. JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN. https://doi.org/10.5988/jime1966.24.10_436 Suherman, A., & Dault, A. (2009). Pengembangan Pelabuhan Perikanan Nusantara (PPN) Pengambengan Jembrana Bali. J Saintek Perikanan. 10 Engine room Lamp (3) 1 15 0,07 0,07 11 General service pump (5) 1 750 3,41 3,41 12 Engine room Blower (6) 2 250 2,27 4,54 13 Bilga Pump AC (7) 1 550 2,50 2,50 14 Fresh Water Pump (8) 1 300 1,36 1,36 TOTAL 14,72 Rahmat, M. B., et al, 30GT Fishing Vessel Electrical System Design, (p. 52 – 61) 61 The Spirit of Society Journal Volume 6, Number 1 September 2022 Zahedi, B., & Norum, L. E. (2013). Modeling and simulation of all-electric ships with low-voltage DC hybrid power systems. IEEE Transactions on Power Electronics. https://doi.org/10.1109/TPEL.2012.2231884 © 2022 by the authors. Submitted for possible open access publication under the terms and conditions of the Creative Commons Attribution (CC BY SA) license (https://creativecommons.org/licenses/by-sa/3.0/). 30GT Fishing Vessel Electrical System Design INTRODUCTION METHODOLOGY This research method was prepared by considering several previous studies with the following steps (Cadick et al., 2012; Lee et al., 2014; Lim et al., 2019; Zahedi & Norum, 2013): First time doing Needs Identification. The occurrence of overfishing (fully-exploited and over-exploited) in the majority of WPPNRI makes the first step to conduct electrification studies on fishing gear so that they are able to explore areas that are... From the data collection in the 2 steps above, the design and prototype of the required electrification system will then be made with a possible combination of alternative energy uses. The final step is to do the analysis. The analysis is carried out ... RESULTS AND DISCUSSION The object of research is a fishing vessel with the following specifications:  Length overall (LOA): 21.00 m  Length waterline (LWL): 18.95 m  Breadth (B): 4.10 m  Draft (T): 1.60 m  Speed: 7 – 10 knots  Main Motor:170 HP/1500 rpm  Fuel tank : 3500 ltr  Fresh Water Tank : 2500 ltr Ships with the above specifications are designed to sail (fish) for 3-5 days with a crew of 16 people. 1. Load Identification The load/equipment that uses electrical energy is shown in table 1 and table 2. The equipment installed on this ship does not operate simultaneously. some equipment operate continuously (continuous) and some operate temporarily (intermittent). From th... 2. Loading Balance Calculation Load calculation is carried out by considering the loading characteristics of each equipment. There are equipments that operate continuously (continuous) and there are those that operate temporarily (intermittent). This data is used to determine the c... Table 1. DC power load data Table 2. DC power load data The power balance calculation is expressed in tabular form and is called the Electric Power Consumption Table (Sakai et al., 1989). In this calculation, the first step is to separate the use of loads into continuous and intermittent categories. After ... When this power is supplied by a battery that has a voltage of 12 V, the current that flows is: The complete results of power balance calculations for DC loads are summarized in table 3 and for AC loads in table 4. With a calculated current value of 79.75 A, the battery with a capacity approaching is a battery with a capacity of 100 Ah. This 100... Table 3. DC load power balance Table 4. DC load power balance 3. Determination of Delivery and Security Determination of the conductor of the electric power system begins with calculating the current absorbed by each load. Results From the table above, the current required load is calculated and is shown in table 5. The total amount of current that must be supplied by the battery is 88.75 A, so the base/mains safety that must be used is a fuse with a capacity of 100 A. With this fuse capacity, based on the BKI regulation (Rules For Classification And Construction... Table 5. Calculation of Current Value at DC Load Voltage 12 V The total amount of current that must be supplied by the battery is 88.75 A, so the base/mains safety that must be used is a fuse with a capacity of 100 A. With the capacity of the fuse, based on the BKI regulation, (Rules For Classification And Const... Table 6. Determination of Safety and Conductor For DC Load Voltage 12 V At the load supplied by the AC generator, for wiring efficiency it is necessary to group the load on the conductor group. The conveying group is intended to supply loads from adjacent conveyance locations and lines. Based on the load grouping based on... Gensets, under normal operating conditions are usually operated at 80% of their capacity. Overhead 20% is used as a backup to anticipate loads which in their starting conditions require relatively high starting currents, usually motor loads. Thus, the... With this power requirement, generators with a power range of 5000 Watt are widely available in the market, both premium and gas fueled. Table 7. the summary result of the electrical design CONCLUSION REFERENCES