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Heri Suyanto
Sekolah Tinggi Teknik PLN
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SISTEM PROTEKSI GENERATOR DENGAN TAHANAN TINGGI PADA PLTU LABUHAN ANGIN TERHADAP GANGGUAN SATU FASA KE BUMI Rinna Hariyati; Heri Suyanto; Marisa Dosma Sitanggang
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 (1308.662 KB) | DOI: 10.33322/sutet.v6i1.571

Abstract

High resistance grounding one of the ways ptotection generator for the single phase earth fault. High resistance grounding utilizes a distribution transformer with a primary voltage rating greater than or equal to the line to neutral voltage rating of the generator. The distribution transformer should have sufficient overvoltage capability so that it does not saturate on single line to ground faults with the generator operated at 105% of rated voltage. The power dissipated in resistor is approximately equal to the reactive volt-amperes of the zero sequence capasitive reactance of the stator windings. For High resistance grounding to be effective, the size of resistor must be carefully selected for each system. IEEE Standard C37.101 provides a detailed example of how to determine the size of the ground resistor to meet the requirements cited above, as well as calculate the resulting ground currents and voltages.
ANALISIS SUSUT ENERGI PADA TEGANGAN RENDAH DI WILAYAH PT. PLN (PERSERO) AREA BULUNGAN Zalmadi Syamsudin; Erlina Erlina; Heri Suyanto
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 (592.089 KB) | DOI: 10.33322/sutet.v5i2.593

Abstract

In the distribution of electrical energy from the power plant to the consumer occurs energy loss or shrinkage energy. Losses of energy in a electrical system must always exist. This is due to the content of prisoners on permanent conductor and the nature of the network itself. In the process of calculating the energy losses experienced many difficulties because of the extensive distribution network. So we need a method to calculate the shrinkage. By performing measurements on distribution substations and calculate the voltage drop across the channel as well as custody and subsequently look for peak power losses and average power losses. Next calculate the energy is channeled so that it can calculate energy losses.
ANALISA INTERKONEKSI SISTEM MENGGUNAKAN DlgSILENT (STUDI KASUS PLTU PULANG PISAU KALIMANTAN TENGAH) Christine Widyastuti; Heri Suyanto; Dyan Retno Febrianini
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 (738.511 KB) | DOI: 10.33322/sutet.v5i1.613

Abstract

One of the planned areas to be implemented is the construction of a 2x60 MW coal-fired steam power plant in Pulang Pisau District, Central Kalimantan. The development of this steam power plant aims to meet the demand for electricity in Central Kalimantan which has been supplied using barito systems and isolated isolated systems generated from diesel generators. The 80% own barito system is concentrated in South Kalimantan with an electrical interconnection system using 150 KV and 70 KV transmission lines covering South and Central Kalimantan that are connected to hydro, coal and diesel power plants. The other 20% is produced from Central Kalimantan, specifically the capital of Palangkaraya and Katingan regency. Based on the simulation done using DlgSILENT software on barito system after the entry of PLTU Pulang Pisau shows the total change of power supply and the occurrence of voltage changes where the peak load time before PLTU Pulang Pisau enter the total power system generated by 395.18 MW and then after PLTU Pulang Pisau Entered into the total power generation system to 411.14 MW. This value is close to the limit of the operating voltage value but the barito system's transmission rate capability is still sufficient to overcome the change in voltage rise.
Co-Authors Christine Widyastuti Dyan Retno Febrianini Erlina Erlina Marisa Dosma Sitanggang Rinna Hariyati Zalmadi Syamsudin