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ITS » Undergraduate Theses » Teknik Fisika S1
Posted by dewi007 at 02/06/2009 15:52:12  •  13252 Views


ANALISIS GANGGUAN HUBUNG SINGKAT TRANSFORMATOR TIGA FASA PADA JARINGAN DISTRIBUSI MENGGUNAKAN TRANSFORMASI WAVELET DAUBECHIES

SHORT-CIRCUIT FAULT ANALYSIS OF THREE PHASE TRANSFORMER AT DISTRIBUTION NETWORK USING DAUBECHIES WAVELET TRANSFORM

Author :
Parapa`, Hendra Budiono Putra 




ABSTRAK

Gangguan hubung singkat pada transformator di jaringan distribusi umumnya disebabkan karena gangguan pada jaringan. Hal ini menyebabkan perlunya pendeteksian secara dini pada transformator. Untuk mengetahui keadaan transformator yang normal dan terganggu maka digunakan transformasi wavelet. Pada tugas akhir ini dilakukan analisa wavelet menggunakan Daubechies orde 2. Hasil analisis menunjukkan pola sinyal hasil transformasi pada koefisien detail 2 untuk keadaan normal dan terganggu. Berdasarkan penghitungan nilai sum of absolute untuk masing-masing koefisien detail 2 hasil transformasi wavelet ternyata terdapat selisih nilai sum of absolute detail 2 untuk masing-masing hasil transformasi. Selisih terbesar terjadi pada saat gangguan hubung singkat dua fasa ke ground. Dari analisis wavelet diketahui bahwa gangguan hubung singkat pada transformator yang paling berpengaruh terjadi pada gangguan dua fasa ke ground.


ABSTRACT

Short circuit fault at transformer in distribution network it is often because fault at network. This thing causes the importance of detection earlyly at transformer. To know state of normal and fault transformer hence used wavelet transform. At this final project research wavelet analysis using Daubechies order 2. Result of analysis shows signal cupola result of transformation at Coefficient detail 2 for normal state and faulted. Based on calculation of value sum of absolute for each Coefficient detail 2 result of wavelet transform simply there is value difference sum of absolute detail 2 for each result of transformation. The biggest difference happened at the time of short circuit two phases fault to ground. From analysis wavelet it is known that short circuit fault at transformer that is very influential happened at two phases fault to ground.



KeywordsTransformator; Gangguan hubung singkat; Transformasi Wavelet.
 
Subject:  Transformator listrik
Contributor
  1. Ir. Ronny Dwi Noriyati, Mkes
Date Create: 02/06/2009
Type: Text
Format: pdf.
Language: Indonesian
Identifier: ITS-Undergraduate-3100009034543
Collection ID: 3100009034543
Call Number: RSF 621.314 Par a


Source
Undergraduate Theses of Physic Engineering, RSF 621.314 Par a, 2009

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