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STUDI KOORDINASI KERJA RELAI JARAK SEBAGAI PENGAMAN CADANGAN PADA SALURAN 150 KV GIS PESANGGARAN-GI NUSA DUA Deoka Gusti; I Gede Dyana Arjana; Cokorde Gede Indra Partha
Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (499.723 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i02.p14

Abstract

The development of Pesanggaran Conventional Substation into the Pesanggaran GasInsulated Switchgear (GIS) as a form of increasing the reliability of the electric power system inBali which led to changes in the protection system configuration on the transmission lineconnecting the GIS Pesanggaran and Nusa Dua Substation. The distance relay that waspreviously functioning as a primary protection was changed to backup protection due to the lackof selectivity of the distance relay in isolate the disruption and as the backup protection if themain protection experiencing a failure. Simulation testing using power system analysis softwareafter determining the value of the distance relay setting and tested with short circuit at 110%and 180% of the transmission line length shows the distance relay has worked according to theP3B JB regulation No. 211/151/P3B/2010 and distance relay can detect disruption in zone 2with a delay time of 0,815 seconds and detect disruption in zone 3 with a delay time of 1,615seconds.
ANALISIS KECEPATAN KERJA SACO SAAT MANUVER BEBAN DI BANDARA NGURAH RAI MENGGUNAKAN ARTIFICIAL NEURAL NETWORK Dewa Ngakan Made Barel; I Gede Dyana Arjana; Widyadi Setiawan
Jurnal SPEKTRUM Vol 4 No 1 (2017): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.817 KB) | DOI: 10.24843/SPEKTRUM.2017.v04.i01.p02

Abstract

Bandara Ngurah Rai memiliki beban daya sebesar 10.380 kVA, disuplai oleh duapenyulang yakni penyulang Gayatri dan peyulang Bandara. Penyulang Gayatri sebagaipenyulang utama dan penyulang Bandara sebagai penyulang cadangan. Penggunaan duapenyulang ini bertujuan untuk mengatasi gangguan pada jaringan, dikarenakan sensitifitasperalatan listrik di bandara yang tinggi. Namun apabila terjadi gangguan pada penyulangGayatri maka suplai beban secara otomatis akan dipindahkan ke penyulang Bandaramenggunakan sakelar otomatis bernama Switching Automatic Change Over (SACO). Tingkatsensitifitas peralatan listrik Bandara Ngurah Rai yang tinggi mengijinkan batas jatuh teganganmaksimum adalah 0,5 kV dari nilai tegangan nominal penyulang, dari permasalahan tersebutmaka dilakukan analisis perhitungan jatuh tegangan dan hubung singkat pada penyulangGayatri. Analisis ini menggunakan program Artificial Neural Network (ANN). Parameter yangdigunakan antara lain jumlah iterasi yaitu 60000 epoch, kecepatan pembelajaran 0,3 danhidden layer sebanyak 40 hidden layer, dimana nilai target pengujiannya adalah 0,00001.Proses pelatihan dan pengujian yang telah dilakukan menghasilkan nilai jatuh tegangan padatitik 100% (ujung penyulang) adalah 274,7 volt dengan nilai Mean Squarred Error (MSE) yaitu45,5. Nilai waktu tunda rele tercepat yaitu 0,3 detik pada titik gangguan 5%, dan nilai MSEdengan hasil terbaik adalah 0,00032 untuk gangguan 1 fasa ke tanah.
Rekonfigurasi Saluran Distribusi 20 kV Untuk Mengurangi Rugi-Rugi Daya dan Jatuh Tegangan Pada Penyulang Abang I Putu Arya Suardika; I Gede Dyana Arjana; Anak Agung Gede Maharta Pemayun
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 (451.527 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i02.p29

Abstract

The feeder of Abang is one of forty-one feeders in State Electrical Company (PT PLN) of east Bali Area. This feeder uses a configuration of radial type that serves consumers in the area of Padangkerta, Bias, Batannyuh, Kikian, Ababi, Datah, Kubu, Nusu, Tianyar and Ban. It has a line transect that is 212,8 kms in leght with a total of distribution subtatations of 167 transformers and its peaks load reaches 5669 kW. This conditions results in drop voltage of 16,255% and and power losses of 10,12%. Feeder reconfiguration is accomplished by two ways: the cutting of the network that is diverted to Subagan feeder and the planning of Kubu feeder. Reconfiguration by using a method of cutting the network shows a voltage correction of Abang feeder with the initial drop voltage of 16,255% to 3.05% and the initial power losses of 10,12% to 3,49%. The improvement of voltage and power losses occurring in this feeder is not followed by Subagan feeder, which experienced an initial rise in the percentage of drops voltage of 6,78% to 27,615% and its initial power losses of 3,89% to 13,28%. While reconfiguration with Kubu's feeder planning is able to repair the drop voltage of Abang feeder to 2.94% and its power losses to 3,41%. Meanwhile, Kubu’s feeder in accordance with the results of running the program ETAP that the value of drop voltage is 2,95% and power losses is 2,73%.
STUDI PENGARUH UPRATING SALURAN TRANSMISI TEGANGAN TINGGI 150 kV TERHADAP SETTING RELE JARAK ANTARA GI KAPAL – GI PADANG SAMBIAN – GI PESANGGARAN S.K. Supriana; I.G. Dyana Arjana; A.A.N. Amrita
Jurnal SPEKTRUM Vol 1 No 1 (2014): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.65 KB)

Abstract

Uprating saluran transmisi pada penelitian ini merupakan pembesaran penampang yang sebelumnya ACSR 240 mm2 menjadi ACCC Lisbon 300 mm2. Adanya uprating saluran transmisi menyebabkan perubahan nilai impedansi. Penelitian ini bertujuan untuk mendapatkan nilai setting rele jarak yang sesuai dengan impedansi zone reach setelah dilakukan uprating SUTT 150 kV. Hasil perhitungan diperoleh nilai setting rele jarak setelah dilakukan uprating yaitu zone pengaman Kapal – Padang Sambian nilai setting rele jaraknya sebesar zone 1 : 1,428 ? (122%), zone 2 : 2,240 ? (197%), zone 3 : 3,640 ? (361%), dan zone 3 reverse : 0,385 ?. Zone pengaman Padang Sambian – Pesanggaran nilainya zone 1 : 1,040 ? (133), zone 2 : 3,300 ? (142%), zone 3 : 6,160 ? (259%), dan zone 3 reverse : 0,302 ?.
ANALISA SETTING RELAI PENGAMAN AKIBAT REKONFIGURASI PADA PENYULANG BLAHBATUH I K. Windu Iswara; G. Dyana Arjana; W. Arta Wijaya
Jurnal SPEKTRUM Vol 2 No 2 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

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Abstract

Penyulang tegangan menengah merupakan saluran yang menghubungkan sumber daya listrik dari gardu induk ke konsumen, di dalam pendistribusian sumber daya listrik di jaringan 20 kV seringkali menyebabkan terputusnya pasokan daya listrik ke pelanggan. Salah satunya sistem pengaman relai pada penyulang. Seperti yang terjadi pada penyulang Blahbatuh perlu dianalisa setting relai pengaman sebelum dam sesudah rekonfigurasi yang dibandingkan dengan data di lapangan. Mencari arus gangguan hubung singkat menggunakan aplikasi Electrical Transient Analisys Program Power Station (ETAP). Hasil analisa mendapatkan arus gangguan hubung singkat sebelum rekonfigurasi jaringan sebesar 9.389 A dan setelah rekonfigurasi jaringan sebesar 9.381 A. Hasil yang diperoleh nilai setting relai sebelum rekonfigurasi dari nilai setting over current relay (OCR) pada pangkal penyulang sebesar 271,2 A dan TMS 0,157 SI, sedangkan hasil yang diperoleh nilai setting relai setelah rekonfigurasi dari nilai setting over current relay (OCR) pada pangkal penyulang sebesar 226,8 A dan TMS 0,170 SI. Hasil yang diperoleh nilai setting relai sebelum rekonfigurasi dari nilai setting ground faulth relay (GFR) pada pangkal penyulang sebesar 25 A dan TMS 0,107 SI, sedangkan Hasil yang diperoleh nilai setting relai setelah rekonfigurasi dari nilai setting ground faulth relay (GFR) pada pangkal penyulang sebesar 23,6 A dan TMS 0,109 SI.
STUDI KOORDINASI KERJA RELE DIFERENSIAL DAN RELE RESTRICTED EARTH FAULT SETELAH UPRATING PADA TRANSFORMATOR II DI GI KAPAL I Made Dwi Cahyadi Jaya; I Gede Dyana Arjana; A.A Gede Maharta Pemayun
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 (179.759 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i01.p07

Abstract

The differential relay on the power transformer II in the Kapal Substation has a sensitivity setting of 30% to the nominal current of winding. Fault current that occurs below setting is not detected because the fault current has not reached the set limit. To overcome the fault current it is equipped with REF relay that has sensitivity below 30%. The analysis was performed by calculation method according to the relay setting manual. The results of sensitivity setting of REF relay is 382.75 A or fault point at 22.09% of the transformer winding, while the differential relay is 519.6 A or fault point at 30% of the transformer winding. The calculation result shows that the first to work is the REF relay than the differential relay. So the fault on the transformer winding is overcome by the REF relay.
Studi Optimasi Reposisi Recloser Untuk Meningkatkan Keandalan Pada Penyulang Blahkiuh Menggunakan Metode Algoritma Genetika I Ketut Ariek Astana Adi; I Gede Dyana Arjana; Widyadi Setiawan
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 (442.711 KB) | DOI: 10.24843/SPEKTRUM.2018.v05.i02.p34

Abstract

Keandalan pada dasarnya merupakan kemampuan suatu peralatan atau komponen dalam menjalankan fungsinya dengan baik pada suatu sistem dalam kondisi operasi tertentu. Indeks keandalan penyulang Blahkiuh berdasarkan penelitian tahun 2016 adalah SAIDI 35,894 jam/pelanggan/tahun dan SAIFI 16,534 kali/pelanggan/tahun. Keandalan suatu penyulang harus perlu ditingkatkan guna menunjang tujuan PT. PLN (Persero) mencapai WCS dan WCC yaitu dengan indeks keandalan SAIDI 100 menit/pelanggan/tahun dan SAIFI 3 kali/pelanggan/tahun. Salah satu cara yang dapat dipakai yaitu dengan mereposisi recloser saluran ke tempat yang lebih tepat dengan mempertimbangkan jumlah pelanggan dan panjang saluran penyulang tersebut. Algoritma Genetika digunakan untuk mendapatkan letak reposisi recloser yang optimal yaitu pada load point-load point yang sudah ditentukan dengan meminimalkan indeks keandalan berupa nilai SAIDI dan SAIFI. Metode ini dapat mudah diimplementasikan dalam berbagai persoalan pengoptimasian karena memberikan solusi yang lebih baik di setiap iterasinya. Dengan menggunakan metode algoritma genetika, didapatkan nilai fitness tertinggi mencapai 0,560 dengan letak recloser yang paling optimal yaitu di load point 11, 21, 48, 78 serta nilai SAIDI 0,919 jam/pelanggan/tahun dan SAIFI 0,864 kali/pelanggan/tahun. Bila dibandingkan dengan penelitian tahun 2016 maka dengan menggunakan metode algoritma genetika didapatkan hasil keandalan berupa indeks SAIDI dan SAIFI yang sudah memenuhi standar WCS dan WCC.
ANALISIS SETTING RELE OGS SEBAGAI SISTEM PENGAMAN TRANSFORMATOR 3 UNTUK MENJAGA KONTINYUITAS ALIRAN DAYA DI GARDU INDUK PESANGGARAN I Wayan Alit Wigunawan; I Gede Dyana Arjana; Cok Gede Indra Partha
Jurnal SPEKTRUM Vol 4 No 2 (2017): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.447 KB) | DOI: 10.24843/SPEKTRUM.2017.v04.i02.p19

Abstract

Transformer 3 of Pesanggaran Substation obtains additional power plants with a maximum power of 60 MW. Power generation is used to supply the load of feeders in Substation of Pesanggaran and also channeled to 150 kV transmission system at Substation of Pesanggaran through Transformator 3 to Substation of Nusa Dua to assist power supply at Nusa Dua Substation. If there is a feeders interruption in the Substation of Pesanggaran which causes the load of feeders to be disconnected, then the power from the generator that is flowed to the 150 kV system increases. Thus the Transformer 3 works heavier, resulting in the current and temperature of the transformer also increased. Increased temperatures in the transformer for long periods can result in damage and reduced lifetime of the transformer. From the problems then calculation of current and working time OGS and OCR as the Transformer 3 safety system. The result of calculation of OGS setting of phase1 is 1600 A with setting work time of 2 seconds, phase 2 is 1700 A with setting working time of 1,5 seconds and stage 3 of 1800 A with setting work time of 1 second. The OGS relay characteristic is definite. For OCR at 150 kV side, the current setting is 277 A and setting time is 1.36 seconds, while OCR setting at 20 kV side is obtained by setting current of 2078.4 A and setting time of 1.18 seconds with OCR Relay characteristic used is inverse.
KOMBINASI LA DAN FCO SEBAGAI PENGAMAN TRANSFORMATOR DISTRIBUSI DI PT. PLN (PERSERO) AREA BALI SELATAN I Putu Adi Sumastra; I Gede Dyana Arjana; I Wayan Rinas
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 (415.598 KB) | DOI: 10.24843/SPEKTRUM.2021.v08.i04.p11

Abstract

The 20 Kv distribution network at Dewa Ruci has 61 distribution substations using the SUTMnetwork with AAAC conductors 1 x 150 mm², because distribution substations are placed in theopen, lightning surge disturbances and overloads that result in damaged transformers,transformers need protection against disturbances, so selected LA placement before and afterFCO to protect the transformer from lightning surge interference with a fast 4/10 us wavepropagation. Placement of LA before the FCO with a distance of 2 meters from the transformerthere is a voltage increase of 89.3515748 kV with a working voltage of LA 87 kV for a LAprotection factor of 95.7 kV, the possibility of LA failing to secure the transformer. Placement ofLA after FCO with a distance of 0.3 meters from the transformer there is a voltage increase of13.40273622 kV still at the working voltage and LA protection factor so that the transformer isstill safe.
ANALISA KEGAGALAN LIGHTNING ARRESTER PADA PENYULANG SULAHAN BANGLI I Kadek Agus Yodha Bhaskara; I Gede Dyana Arjana; I Made Suartika
Jurnal SPEKTRUM Vol 6 No 3 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.389 KB) | DOI: 10.24843/SPEKTRUM.2019.v06.i03.p13

Abstract

In the process of electrical power distribution, various types of interference can occur so that a protection system is needed to maintain the continuity and stability of electrical power distribution. Arrester is one of the main protection systems used to protect electrical equipment against overvoltages caused by lightning strikes. Penyulang Sulahan is a 20kV medium voltage distribution system that gets power supplies from Gianyar Substation 1/60 MVA and is located on a plateau that is prone to natural phenomena such as lightning. During 2016 there were three times the failure of conventional arresters. Based on these data, it is necessary to analyze the failure of arresters at Penyulang Sulahan so that the continuity of electricity can be better. The method used in this study is to collect data in the form of single line diagrams, disturbance data, and large grounding resistance on Sulahan Feeders. Next, compare Metal Oxide Arrester with Multi Chamber Arrester. The results obtained were grounding in the Feeder over 5 ohms which caused conventional arrester to not work properly. Multi Chamber Arrester is an arrester that has no effect on the value of grounding resistance. After installing the Multi Chamber Arrester, failure of arresters has decreased to one failure during 2017
Co-Authors A A Gd Maharta Pemayun A. A. Gde Agung Semarabawa A. I. Weking A.A Ngurah Amrita A.S. Murti Ahmad Fauzi Alfian Hadianto Anak Agung Gede Maharta Pemayun Anak Agung Ngurah Wanda Ariesta Antonius Ibi Weking Arya Surya Darma bagus widyananda yoga Bhrama Sakti K.P. Cok Gede Indra Parta Deoka Gusti Dewa Gede Uki Atmaja Dewa Made Rian Sanjaya Dewa Ngakan Made Barel Dewa Putu Yudha Prawira Diky Wahyu Kusuma Budi F. Iskandar Fajar Rizky Kurniawan G. A. P. Yuni Maheswari Galih Budi Santosa Ganggas B Maulana Idham Gede Teguh Pradnyana Yoga Hery Samudra I Dewa Gde Agung Budhi Udiana I Gede Gerry Julius Perdana I Gede Krisnayoga Kusuma I Gede Riana I Gede Wiyoga Putra I Gusti Agung Putra Sanjaya I Gusti Ngurah Kade Suwiherawan I Gusti Nyoman Indra Wiguna I K. Windu Iswara I Kadek Agus Yodha Bhaskara I Kadek Dodik Darma Putra I Kadek Rogan Bayu Candra Dwipa I Ketut Ariek Astana Adi I Komang Anom Astana Ady I Made Adi Purwa Adnyana I Made Deny Setiawan I Made Dian Purnawan I Made Dwi Cahyadi Jaya I Made Mataram I Made Suartika I N Satya Kumara I Nyoman Budiastra I Nyoman Julyantara I Nyoman Setiawan I Nyoman Sutarja I Nyoman Tri Juliarta I Nyoman Upanayana I Nyoman Wardana I Putu Adi Sumastra I Putu Agus Kumara Putra I Putu Arya Suardika I Putu Dimas Darma Laksana I Putu Gede Aras Widya Pratama I Putu Weda Jayanthana I W Rinas I Wayan Agus Teja Baskara I Wayan Alit Wigunawan I Wayan Arta Wijaya I Wayan Artha Wijaya I Wayan Rinas I Wayan Sastrawan I Wayan Sukerayasa I Wayan Swi Putra I Wayan Yoga Prasetya I. N. Partawan I.B.G. Manuaba Ian Rahmadi Kurniawan Ida Bagus A. Swamardika Komang Dody Pramudya Indra Jaya l Gusti Ngurah Janardana M. N. Hanifan M. Nordiansyah Made Ananta Pradnya Made Dwi Krisna Putra Sudiharta Made Niken Ayu Larasati Danianto Nur Ayu Puspita Indra Pratiwi Nyoman Ananda Tri Utami Putu Agus Satriya Guna Adnyana Putu Arya Mertasana Rizal Akbar Fauzany Rukmi Sari Hartati S.K. Supriana Tjok Gede Indra Partha Tjok. Gede Indra P W. Arta Wijaya W. Setiawan Widyadi Setiawan Wikan Pradnya Dana, Gde yoga armika