Juniardi, Hafizs (2015) Perhitungan Energi Busur Api Listrik Menggunakan Metode Time Domain Di PT.Pindo Deli. Undergraduate thesis, Institut Technology Sepuluh Nopember.
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Abstract
Berdasarkan standar IEEE 1584-2002 yang mengatur tentang
analisa bahaya busur api (arc-flash) pada sistem tegangan rendah dan
menengah, pengguna dapat dengan mudah menentukan batas keamanan
untuk para pekerja. Namun, perlu diperhatikan bahwa standar yang ada
diperoleh dari hasil pengukuran insiden energi busur api pada kondisi
tertentu dan dikombinasikan dengan teori. Menurut rekomendasi standar
IEEE, perhitungan arus hubung singkat selalu memperhatikan kontribusi
arus gangguan dari generator, motor induksi dan sinkron. Besar kecilnya
energi arc-flash dapat ditentukan dari beberapa sudut pandang.
Diantaranya ialah nilai energi arc-flash akan besar apabila dihitung
dengan menggunakan arus bolted three-phase fault, sedangkan dari
sudut pandang arc-clearing time yang didapat dari waktu dimana arus
gangguan saat itu terjadi akan menghasilkan nilai energi busur api yang
lebih rendah. Hal ini memunculkan metode perhitungan modifikasi yang
didasarkan pada perhitungan kontribusi arus hubung singkat dan waktu
pemadaman busur api (arc-clearing time) sehingga besar energi busur
api yang dihasilkan lebih rendah dari standar IEEE 1584-2002. Hal
tersebut dapat dijadikan sebagai acuan untuk perbaikan sistem
pengaman.
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Based on the IEEE 1584-2002 standards governing arc hazard
analysis at low and medium voltage systems, the user can easily
determine the limit of safety for the workers. However, please note that
the existing standards obtained from measurements of the arc energy
incident on certain conditions and combined with the theory. According
to IEEE standard recommendations, the calculation of short circuit
current is always concerned the fault current contribution from the
generator, induction and synchronous motor. The value of incident
energy arc-flash can be determined from several view points. There are
the arc-flash energy will be large when calculated using the current
bolted three-phase fault, whereas from the another view point of arcclearing
time that obtained from the time of fault current when it occurs
will result lower energy values of arc. This raises a new modified
calculation method are based on the contributions short circuit current
and the arc extinction time (arc-clearing time) so that the arc of the
energy produced lower than standard IEEE 1584-2002. It can be used
as reference for the improvement of safety systems.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 621.319 1 Jun p |
| Uncontrolled Keywords: | Arc-clearing time, Bolted three-phase fault dan Modifikasi Perhitungan. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive. |
| Divisions: | Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 19 Feb 2019 01:58 |
| Last Modified: | 19 Feb 2019 01:58 |
| URI: | http://repository.its.ac.id/id/eprint/62329 |
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