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Juara Mangapul Tambunan
Sekolah Tinggi Teknik PLN
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EVALUATION OF MEDIUM VOLTAGE PROTECTION NETWORK 20 KV IN PLTD MERAWANG BANGKA Juara Mangapul Tambunan; Albert Gifson; Harry Saputra
Sutet Vol 6 No 1 (2016): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (949.791 KB) | DOI: 10.33322/sutet.v6i1.574

Abstract

Medium voltage feeder is a media for distribute power electric from main stasion to the customer. But in the fact, the feeders almost have a disturbance, such as short circuit disturbance. So is needed protection system which is fulfill the qualification such as sensitivity, realibilty, and speed, which all of that depend on the accuration of tool protection setting. In general it used for medium voltage feeder are Over Current Relay (OCR) and Ground Fault Relay (GFR), that is relay which has function to instruction the PMT for open the circuit, so SUTM/SKTM which has disturbance separate from nerwork. In this final project it will discuss about condition in the protection system for medium voltage 20 KV network in PLTD Merawang Bangka.
KERJA PEMBEBANAN DAN TEMPERATUR TERHADAP SUSUT UMUR TRANSFORMATOR TENAGA 150/20 kV 60 MVA Juara Mangapul Tambunan; Agung Hariyanto; Wahyu Kurniadi Tindra
Sutet Vol 5 No 2 (2015): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (631.968 KB) | DOI: 10.33322/sutet.v5i2.599

Abstract

In Indonesia have been in the design of a transformer with an environmental temperature of 2000C and operate around 3000C, so a working transformer must be adapted to the load. Shrink age transformer affected by isolation transformer oil and transformer entanglement. Excessive heat can damage the transformer coil insulation and temperature rise on oil can change the viscosity of the oil transformer. In the observations of work load and temperature on the Power Transformer lead shrink age and ability of the smaller the transformer supplying the load is also on the wane. The increase will raise the temperature of the load end of the hot-spot, which is approaching the maximum allowable value. From observations obtained temperature hot-spot only reached 107.180C, then your age will increase the transformer of 1.3891 years. So according to the calculation, the transformer on a GI Kembangan can operate for 20.55 years according the IEEE when coupled with the age 1.3891 years, then the transformer will be 21.9391 year. To date, Transformers GI Kembangan has been operating for 13 years so the rest of the transformer is expected to become age 8.9391 years.
PERHITUNGAN KAPASITAS TRAFO PEMBUMIAN TITIK NETRAL PADA GENERATOR Juara Mangapul Tambunan; Tony Koerniawan; Ganjar Ramadhan
Sutet Vol 5 No 1 (2015): JURNAL ILMIAH SUTET
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (594.086 KB) | DOI: 10.33322/sutet.v5i1.614

Abstract

Generator is an important component of plant. Therefore the reliability and sustainability of a generator in generating electricity depends on the grounding system used. The transformer capacity generated from the calculation of 33.045 kVA in the event of interference. So the capacity of the transformer used must exceed the capacity of the transformer during interruption.
Co-Authors Agung Hariyanto Albert Gifson Ganjar Ramadhan Harry Saputra Tony Koerniawan Wahyu Kurniadi Tindra