Fathoni, Muhammad Maulana Irfan (2016) Analisis Setting Waktu Rele Pengaman Di PT. Pupuk Sriwidjaja Dengan Mempertimbangkan Transient Stability Assessment. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
2213105027-Undergraduate-Theses.pdf Download (2MB) | Preview |
Abstract
Pada sistem tenaga listrik, kestabilan transien mempunyai
peranan yang sangat penting dalam menjaga keamanan dan
keberlangsungan operasinya. Pada saat terjadi gangguan, rele pengaman
akan bekerja untuk membuka circuit breakers dalam kurun waktu
tertentu. Akan tetapi hal ini tidak menjamin sistem dapat terjaga
kestabilannya. Hal ini disebabkan adanya waktu pemutus kritis / critical
clearing time (CCT) pada sistem tenaga listrik. CCT adalah perhitungan
batas waktu kritis setelah terjadi gangguan dimana saat terjadi gangguan
harus diputus sebelum CCT. Apabila gangguan diputus setelah CCT
maka sistem tidak dapat terjaga kestabilannya. Dengan metode Time
Domain Simulation (TDS) nilai CCT yang didapatkan akurat tetapi
hanya berupa nilai batas stabil dan batas tidak stabil sistem tenaga
listrik. Pada PT. Pupuk Sriwidjaja saat ini telah mempunyai setting
waktu rele pengaman yang belum mempertimbangkan Transien Stability
Assessment. Agar perusahaan ini lebih handal dan dapat menjaga
kontinuitas kebutuhan produksinya maka harus didapatkan nilai CCT
metode TDS. Setelah diperoleh hasil CCT kemudian digunakan untuk
pertimbangan setting waktu rele pengaman. Hasil analisa didapatkan
bahwa terdapat beberapa bus di PT. Pupuk Sriwidjaja yang setting
waktu nya masih diatas nilai CCT. Penambahan peralatan proteksi yang
mampu bekerja secara cepat diperlukan, dalam hal ini adalah rele
differential yang mampu bekerja 1-3 cycle dalam mengisolir gangguan
agar sistem dapat terjaga kestabilannya.
================================================================================
In the electric power system, transient stability has a very
important role in maintaining the safety and continuity of operations. In
the event of interruption, the safety relay will work to open circuit
breakers within a certain time. However, this does not guarantee the
system stability can be maintained. This is due to the breaker time
critical / critical clearing time (CCT) on the power system. CCT is the
calculation of the critical time limit after which the interruption occurs
during disturbances must be disconnected before the CCT. If the
disorder is disconnected after CCT then the system can not be
maintained its stability. With methods Time Domain Simulation (TDS)
CCT values obtained are accurate but only in the form of limit values
and limit unstable stable power system. At the PT. Fertilizer Sriwidjaja
now has a time setting that is not considered a safety relay Transient
Stability Assessment. So that the company is more reliable and can
maintain the continuity of production needs to be obtained CCT value
TDS method. Having obtained the results of CCT is then used for the
consideration of setting a safety relay. Results of the analysis showed
that there are several buses in PT. Fertilizer Sriwidjaja the time setting
is still above the value of the CCT. The addition of protective equipment
that is able to work quickly is necessary, in this case the differential
relay which is able to work 1-3 cycle disorders in order to isolate the
system can be maintained its stability.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 621.312 Fat a |
| Uncontrolled Keywords: | Kestabilan Transien; CCT; Time Domain Simulation; Transient Stability |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves). |
| Divisions: | Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Anis Wulandari |
| Date Deposited: | 08 Jun 2017 04:18 |
| Last Modified: | 26 Dec 2018 07:56 |
| URI: | http://repository.its.ac.id/id/eprint/41529 |
Actions (login required)
 |
View Item |