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DAFTAR ISI
HALAMAN
JUDUL....................................................................................................
LEMBAR PERNYATAAN...................................................................
LEMBAR PENGESAHAN...................................................................
ABSTRAK............................................................................................. i
ABSTRACT ........................................................................................ iii
KATA PENGANTAR ......................................................................... v
DAFTAR ISI ...................................................................................... vii
DAFTAR GAMBAR .......................................................................... xi
DAFTAR TABEL.............................................................................xiii
BAB 1 PENDAHULUAN
1.1 Latar Belakang............................................................................ 1
1.2 Perumusan Masalah .................................................................... 1
1.3 Tujuan......................................................................................... 1
1.4 Metodologi.................................................................................. 2
1.5 Sistematika Penulisan ................................................................. 3
1.6 Relevansi..................................................................................... 4
BAB 2 PERALATAN, GANGGUAN DAN PENGAMAN PADA
SISTEM TENAGA LISTRIK
2.1 Busbar ........................................................................................ 5
2.1.1 Busbar Tunggal............................................................... 5
2.1.2 Busbar Ganda.................................................................. 6
2.1.3 Busbar dengan PMT 1½ ................................................. 8
2.2 Transformator Arus (Current Transformer) .............................. 9
2.2.1 Jenis Transformator Arus Menurut Jumlah Kumparan.. 11
2.2.2 Jenis Transformator Arus Menurut Jumlah Rasio ......... 12
2.2.3 Jenis Transformator Arus Menurut Jumlah Inti............. 13
2.2.4 Jenis Transformator Arus Menurut Kontruksi Isolasi ... 13
2.3 Gangguan-Gangguan Pada Sistem Tenaga Listrik.................... 14
2.4 Sebab – Sebab Timbulnya Gangguan Pada Sistem Tenaga
Listrik........................................................................................ 15
2.4.1 Gangguan Beban Lebih................................................. 15
2.4.2 Gangguan Hubung Singkat ........................................... 15
2.4.3 Gangguan Tegangan Lebih............................................ 15
2.5 Analisa Gangguan Hubung Singkat.......................................... 16
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2.5.1 Data Yang Diperlukan Untuk Hubung Singkat ............. 16
2.5.2 Perhitungan Arus Hubung Singkat................................ 18
2.6 Pengaman Pada Sistem Tenaga Listrik..................................... 19
2.7 Rele Proteksi............................................................................. 19
2.7.1 Elemen Dasar Rele Proteksi.......................................... 19
2.7.2 Syarat – Syarat Rele Pengaman .................................... 20
2.8 Rele Diferensial ........................................................................ 24
2.8.1 Prinsip Kerja Dari Rele Diferensial............................... 24
2.8.2 Rele Diferensial Tegangan (Impedansi Tinggi)............. 25
2.8.3 Skema Impedansi Tinggi (High Impedance)................. 26
2.8.4 Setting Skema Impedansi Tinggi .................................. 29
BAB 3 SISTEM KELISTRIKAN PT. LINDE INDONESIA
GRESIK
3.1 Rating Tegangan....................................................................... 33
3.2 Sistem Pembangkit Tenaga Listrik PT. Linde Indonesia
Gresik........................................................................................ 34
3.3 Sistem Distribusi PT. Linde Indonesia Gresik.......................... 34
3.4 Sistem Pentanahan Peralatan .................................................... 35
3.5 Spesifikasi Motor...................................................................... 36
BAB 4 SIMULASI DAN ANALISA
4.1 Pemodelan Sistem Kelistrikan PT. Linde Indonesia
Gresik........................................................................................ 37
4.2 Analisa Hubung Singkat............................................................ 37
4.2.1 Hubung Singkat Minimum 30 Cycle............................. 39
4.2.2 Hubung Singkat Maksimum ½ Cycle............................ 39
4.3 Pemlihan Transformator Arus................................................... 40
4.4 Setting Diferensial Impedansi Tinggi (High Impedance) ......... 59
4.4.1 Level Arus Hubung Singkat .......................................... 60
4.4.2 Stabilitas Pada Gangguan Eksternal (Security Check) .. 66
4.4.3 Verifikasi Dari Rating Tegangan CT
(Check Keandalan)........................................................ 68
4.4.4 Sensivitas Pada Gangguan Internal............................... 69
4.4.5 Setting Waktu ................................................................ 70
BAB 5 PENUTUP
5.1 Kesimpulan............................................................................... 71
5.2 Saran......................................................................................... 72
