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ANALISA LIGHTNING ARRESTER AKIBAT UPRATING TRANSFORMATOR 150/20 kV DARI 30 MVA KE 60 MVA DI GARDU INDUK SANUR Dewa Putu Yudha Prawira; I Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.821 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i02.p26

Abstract

Salah satu Transformator di Gardu Induk Sanur mengalami uprating dari kapasitas 30 MVA menjadi 60 MVA. Bertambahnya kapasitas transformator tidak diikuti dengan uprating peralatan pengaman surja atau lightning arrester, sehingga perlu adanya kajian untuk mengetahui hal tersebut. Metode teori pantulan berulang dengan diagram tangga digunakan untuk mengetahui lightning arrester pada saat memotong kecuraman gelombang tegangan surja. Uprating Transformator diketahui berpengaruh terhadap lightning arrester. Lighning arrester pada transformator 30 MVA memiliki waktu percik 9,18 ?det, arus pelepasan 3,35 kA, dan tegangan kecuraman gelombang tertinggi tiba pada transformator 666,8 kV, sedangkan lighning arrester pada transformator 60 MVA memiliki waktu percik 8,14 ?det, arus pelepasan 3,98 kA, dan tegangan kecuraman gelombang tertinggi tiba pada transformator 816,8 kV atau sebesar 8,9 % diatas TID transformator tetapi tidak melewati standar yang diizinkan sebesar 20 % dari TID, Lightning arrester tidak diganti karena masih mampu mengisolasi transformator 60 MVA pada jarak tetap antara lightning arrester dengan transformator
Rancang Bangun Kapasitor Bank Otomatis Berbasis Mikrokontroler ATmega 328P Untuk Perbaikan Faktor Daya Putu Angga Juliantara; I Wayan Arta Wijaya; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 5 No 1 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.492 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i01.p23

Abstract

Inductive load with low power factor has led to the greater load current so that it is required a power factor improvement. Improvement of power factor in inductive load can be carried out by installing capacitor according to required proportion. Installation of capacitors can be used in parallel or series to electric source.The method of making design is divided into two parts, namely, the first is the designing of hardware and the second is the designing of the software. The designing of hardware consists of designing the power supply circuit, driver relay circuit, LCD circuit, minimum system circuit of ATmega 328P, capacitor bank circuit, current sensor circuit and voltage sensor circuit. The sensors used in this study were a non-invasive type SCT013-010 current sensor and a voltage sensor of a 500 mA type zero transformer. The design of software was in the form of work program tools that use the application of Arduino IDE. LCD displays the readout values of voltage, load current, active power, apparent power, reactive power and power factor. The ATmega 328P microcontroller processes data and determines the working relay so that the purpose of power factor value by cos phi ? 0.85 is achieved. The results achieved in this research is the design of automatic bank capacitor based on microcontroller of ATmega 328P can improve power factor by conducting injection capacitor to raise the power factor value according to PLN standard by cos phi ? 0.85 by connecting capacitor to the source of PLN paralleled by a single phase inductive load.
ANALISIS LIGHTING ARRESTER UNTUK MENGAMANKAN BUSBAR 150 kV TERHADAP GANGGUAN SURJA PADA GIS PECATU I Putu Agus Kumara Putra; I Gede Dyana Arjana; Cok. Gede Indra Partha
Jurnal SPEKTRUM Vol 8 No 4 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (555.796 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i04.p8

Abstract

GIS (Gas Insulated Switchgear) Pecatu is one of the GI built by PT. PLN (Persero) toprovide energy continuity to its customers. In the GIS Pecatu there is no lighting arrester (LA)because the equipment in the GIS Pecatu is located indoors. Where there is only LA from thedirection of the GI Nusa Dua to the GIS Pecatu with a distance of 12.08 km, so it is necessaryto do study to find out whether the LA from the GI Nusa Dua direction to the GIS Pecatu canprotect the busbar from the traveling wave of lightning surge .The results of the analysis showed using the software simulation method that LA fromthe direction of the GI Nusa Dua to the GIS Pecatu has been able to protect the GIS Pecatubusbar. Simulation results obtained that the current passing through the 150 kV busbar of 1,219kA and the voltage on the busbar during a lightning surge of 4 kV. The voltage on the busbarand the current through the busbar during a surge is still within the tolerance of the maximumsystem voltage of 170 kV and the current ratio of 4 kA.
ANALISIS RESETTING RELE JARAK AKIBAT UPRATING KONDUKTOR GIS PESANGGARAN - GI SANUR Rizal Akbar Fauzany; I Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.416 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i02.p03

Abstract

Increased load current on the Pesanggaran – Sanur transmission line by 333,536 Ampere or 83,384 % of the current carrying capacity caused the uprating conductor from ACSR Partridge 135 ????????2 into ACCC Lisbon 310 ????????2. Upratingj cause changes in impendance value. This change affects the zone reach protection of GIS Pesanggaran – GI Sanur distance relay which overlaps with Zone protection of GI Sanur – GI Gianyar distance relay. Resetting is done by recalculation according the distance relay rules and the result are tested with short circuit at 86 % Pesangaran – Sanur transmission line. Resetting result shows the distance relay operate appropriately according with the IEEE Standard C37.113-2015.
DESAIN SISTEM OTOMATISASI POMPA MENGGUNAKAN PICOBOX DI PDAM KOTA DENPASAR Dewa Gede Uki Atmaja; Cok Gede Indra Partha; I Gede Dyana Arjana
Jurnal SPEKTRUM Vol 7 No 3 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (394.973 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i03.p3

Abstract

One of the uses of water resources can be done through the Regional Water Company(PDAM). Equipment needed in a water supply system that uses wells as a source of waterinclude well pumps, booster pumps, and pump control systems so that the pumps can workeffectively and efficiently. The Operation and Maintenance Section is still using a manualsystem in carrying out its duties by coming to the location and immediately conducting aninspection. This study designed a pump automation system with Aplus Massenger picobox toolusing an SMS service. The pump automation system consists of a series of microcontrollers,GSM modules, RTC modules, and electric current sensors. SMS information on the value of theload current at the distribution substation is sent by the pump automation system according tothe sensor reading information and the time information set on the system. The load currentnotification system can provide an SMS warning of a disturbance of the load current at thedistribution substation. This pump automation system is carried out in the Treatment Room ofthe Water Treatment Pump Distribution Unit in the Denpasar City PDAM, with the result of anSMS reply in the form of "load current: 30-10-2019” is R = 64 Amperes, S = 63 Amperes, T = 64Amperes to receive the information about the value of the load at the distribution substation.
RANCANG BANGUN MONITORING ENERGI LISTRIK MENGGUNAKAN SMS BERBASIS MIKROKONTROLER ATMEGA328 Raden Ajeng Gusti Ramadhianti; Ir. Cok Gede Indra Partha; I Gusti Agung Pt Raka Agung
Jurnal SPEKTRUM Vol 5 No 1 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.065 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i01.p19

Abstract

Customer PT. PLN (Persero) has been getting prepaid and postpaid electric service programs, on postpaid electricity PT. PLN is still using conventional ways to monitor the electricity consumption of its customers. PLN officers must record meters, calculate and publish accounts to be paid by customers. In this study using electrical energy monitoring system using SMS that can measure and monitor the use of electrical energy in real time, using the method of direct measurement. Results from the current sensor readings and voltage sensors will be forwarded to the microcontroller to be converted into the amount of electrical energy consumption and the amount of payment in accordance with tariffs that have been determined PLN. The research was conducted in Basic Laboratory of Electrical Engineering, Laboratory of Energy Conversion, Laboratory of Workshop & Electrical Installation, Electrical Engineering Study Program, Faculty of Engineering, Udayana University.
ANALISIS PERBANDINGAN UNJUK KERJA WIND TURBINE TSD-500 DAN GH – 0.5K DI PILOT SMART GRID TEKNIK ELEKTRO UNIVERSITAS UDAYANA I. W. Dhanan Arieyasa; Cok. G. Indra Partha; I. W. Sukerayasa
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.958 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i01.p7

Abstract

Wind power generation is a power plant that converts kinetic energy into electrical energy by utilizing wind as its energy source. The Smart Grid Pilot Project in Microgrid, Udayana University's Electrical Engineering Study Program has a wind power plant for research. The wind power plants in the Smart Grid Pilot Project in Microgrid Udayana University's Electrical Engineering Study Program totaled 10 turbines with rated power of 500 Watt each, from 10 wind turbines there are 8 wind turbines with TSD-500 models made in Indonesia and 2 wind turbines with GH-0.5K models made in China. The data logger contained in the Pilot Smart Grind in Electrical Engineering, Udayana University, logs 10 wind turbines at a time, so the output power of each wind turbine is unknown. Performance analysis of wind turbine TDS-500 and GH-0.5K using a measuring instrument based on the ATmega 328 microcontroller so that it can find out which wind turbine is larger which results in better power output and performance. The results of this study indicate that the TSD-500 wind turbine performance is better than the GH-0.5K wind turbine.
PERANCANGAN SISTEM PENGAMAN BUSBAR 150 KV MENGGUNAKAN RELE DIFERENSIAL DI GARDU INDUK SANUR Ahmad Fauzi; Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (568.317 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i02.p13

Abstract

Sanur substation has an important role to fulfill electricity consumption in the Sanurarea and parts of the city of Denpasar. Bursbar is very important part of the performance of asubstation. failures that occur on the busbar can result in widespread blackouts that disrupt thecontinuity of the flow of electric power. A sensitive, selective and fast busbar protection systemis needed to prevent widespread blackouts. This research is designed to design dual 150 kVbusbar protection using differential relays. The power flow and short circuit current in Sanursubstation in this study were analyzed using simulation of load flow and short circuit withcomputer software. Current calculation as the basis for designing and setting differential relaysettings as busbar protection is carried out by the Merz price calculating current method, allcurrents entering and leaving the secured equipment, compared to each other. The busbarprotection system using differential relays was successfully designed with a pick up currentsetting of 0.88 A for busbar A and 1.046 A for busbar B, as well as breakpoints 6 A, slope1;30%, slope2; 135%, and zero seconds working time for both relays the. The differential relaydesigned is able to isolate busbar failures more sensitive, more selective, and faster with aclearing time of 0.035 seconds compared to the existing condition protection system with aclearing time of 1.185 seconds.
PERENCANAAN SISTEM TATA UDARA RUANG OPERASI DI RUMAH SAKIT IBU DAN ANAK PURI BUNDA TABANAN BALI I Gusti Ngurah Kade Suwiherawan; I Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 8 No 1 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (334.154 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i01.p33

Abstract

The Puri Bunda Mother and Child Hospital in Denpasar opened a new branch inTabanan. The operating room is one of the focuses in realizing patient safety-oriented services.The government with PMK No. 24 of 2016 and Technical Guidelines for Hospital Infrastructurefor Air System Installation Systems in 2012 requires operating rooms to meet requirements suchas: room temperature ranges from 20ºC - 24ºC, humidity 40% - 60%, equipped with HEPA filterwith 99.97% efficiency, positive pressure of 15 pascal to the surrounding space, and equippedwith a clean air exchange system. the result research and calculations in planning theoperating room air conditioning system at the Puri Bunda Tabanan Mother and Child Hospitalaccording to the standards obtained a split duct capacity of 60,000 btu / h, a heater of 7KW, aBooster fan of 1900 CFM, a HEPA filter of 120cm x 80cm. 2 units for each room, 42cm x 42cmducting inlet outlet, 20cm x 25cm RAG and FAG ducting, 380 CFM exhaust fan.
ANALISA SISTEM PENGAMAN GENERATOR PLTDG DI PT INDONESIA POWER UNIT PEMBANGKITAN BALI Putu Wira Asta Dharma; Cok Gede Indra Partha; Ngakan Putu Satriya Utama
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.713 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i02.p18

Abstract

The need for electrical power, especially in Bali, is increasing every year. Therefore, the Bali’s Generating Unit of PT Indonesia Power has replaced the Diesel-powered Electrical Generator Pembangkit Listrik Tenaga Diesel (PLTD) with ‘the Gas-powered Diesel of Electrical Generator Pembangkit Listrik Tenaga Diesel Gas’ (PLTG). Such a replacement causes the change in the generating capacity power which affects the setting and system of protection. This current study was intended to analyze the relay protecting system using the short connecting simulation method in the ETAP program in order to be able to identify the maximum and minimum disturbing current, the working time setting and the OCR (Over Current Relay) and GFR (Ground Fault Relay) protecting coordination. Based on the result of simulation and calculation, it can be concluded that the OCR took 1.18 seconds to work, faster than the GFR, which took 2.25 seconds to work.
Co-Authors A. A. Gde Agung Semarabawa A. I. Weking A.A Ngurah Amrita Adi Prasetyo, Wibisono Agung, I Gusti Agung Putu Raka agus mardiana putra Agus Teja Ariawan Ahmad Fauzi Anak Agung Istri Pandawani Anak Agung Ngurah Wanda Ariesta Angga Tata Pradana, I Putu Ariany Frederika Aryasuta, I Ketut Bima Aditya Putra D. Sitompul Daton Trisnadana, I Nyoman Deoka Gusti Dewa Gede Uki Atmaja Dewa Made Rian Sanjaya Dewa Putu Yudha Prawira Duman Care Khrisne Dwi Girantari, Ida Ayu Edyama Vasabri Genta Maulana Eka Pratama, I Gusti Putu Eka Yulia Indri Christanti G. A. P. Yuni Maheswari G. D. Arjana Gordon Arifin Sinaga I Dewa Gde Agung Budhi Udiana I Dewa Gde Bayu Wiranatha I Dewa Gede Bayu Satya Nugraha I Gd. Dyana Arjana I Gede Budiyasa I Gede Dyana Arjana I Gede Eka Saputra I Gst Agung Putu Raka Agung I Gusti Ngurah Kade Suwiherawan I Kadek Rogan Bayu Candra Dwipa I Kadek Wisnu Wirawan I Ketut Aryasuta I Made Agus Artha Putra I Made Bagas Sastra Negara I Made Deny Setiawan I Made Mataram I N Satya Kumara I Nyoman Benny Rismawan I Nyoman Budiastra I Nyoman Setiawan I Nyoman Sutarja I Nyoman Wardana I P. G. Eko Putra I Putu Agus Kumara Putra I Putu Dimas Darma Laksana I Putu Gede Aras Widya Pratama I Putu Gede Mahendra Sanjaya I Putu Indra Saputra I Putu Weda Jayanthana I W. A. Wijaya I Wayan Alit Wigunawan I Wayan Arta Wijaya I Wayan Arta Wijaya I Wayan Arta Wijaya I Wayan Artha Wijaya I Wayan Sastrawan I Wayan Sukerayasa I Wayan Sukerayasa I Wayan Widhiada I. W. Dhanan Arieyasa I.M. Suartika I.N.Y. Prayoga I.W.A Wijaya I.W.A. Wijaya Ida Ayu Dwi Giriantari Ida Bagus A. Swamardika Ida Bagus Gede Manuaba Ignatius I Wayan Rexci Indra Parmana Ilham Affandy Janardana, I G N Janardana, I Gusti Ngurah Kadek Bayu Kusuma Karim Mewal, Karel A Kheri Arionadi Komang Budiarta Kresna Dharma Yudha, A.A. Gede l Gusti Ngurah Janardana M, I Gede Mahardika Made Dwi Krisna Putra Sudiharta Made Niantara Riandana Made Niken Ayu Larasati Danianto Made Satria Tresnajaya Mangun Yasa, Made Galang Manuaba, Ida Bagus Gede Mawadah Wr Febriyani Muhammad Namiruddin Al Hasan Natih Evan Bayu, I D G Ngakan Putu Satriya Utama Paisal, Muhammad Pratama, I Putu Indra Putu Agung Ananta Wijaya Putu Angga Juliantara Putu Arya Mertasana Putu Quentin MP Putu Wira Asta Dharma Quentin MP, Putu Raden Ajeng Gusti Ramadhianti Reki Aji Saputra Riyan Bhaskara Surya A, I.B Rizal Akbar Fauzany Rizal Arifin, Ahmad Sahabat Nazara Saputra, I Gede Eka Sianturi, Roni Sitanggang, Rafael Sukerayasa, I W Suta Adya Dharma Triandani Ayuningsih, Ni Nyoman W. Arta Wijaya Wayan Reza Yuda Ade Putra Wiawan Adhi Guna, I Putu Gede Widyadi Setiawan Wikan Pradnya Dana, Gde Wirawan, I Kadek Wisnu Yoga Divayana Yoga Kusuma Wardhana