Buku Pedoman Proteksi Dan Kontrol Transformator

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Transcript of Buku Pedoman Proteksi Dan Kontrol Transformator

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    PROTEKSI DAN KONTROL TRANSFORMATOR

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    DAFTAR ISI

    DAFTAR ISI................................................................................................................... I DAFTAR GAMBAR..................................................................................................... III DAFTAR TABEL .........................................................................................................IV DAFTAR LAMPIRAN ...................................................................................................V PRAKATA...................................................................................................................VI PROTEKSI DAN KONTROL TRANSFORMATOR....................................................... 1 1 PENDAHULUAN....................................................................................... 1 1.1 Gambaran Umum...................................................................................... 1 1.2 Pola Proteksi Transformator ......................................................................1 1.2.1 Pola Proteksi Transformator Tenaga TT/TM..............................................1 1.2.2 Pola Proteksi Transformator IBT TET/TT................................................... 1

    1.2.3 Pola Proteksi Transformator IBT TT/TT (150/70 kV atau 150/66 kV) ......... 3 1.2.4 Skema Over Load Shedding (OLS) Pada Transformator ........................... 5 1.3 Pola Proteksi Reaktor................................................................................5 1.4 Pola Proteksi Kapasitor ............................................................................. 6 1.5 Parameter Pengujian Relai Proteksi .......................................................... 8 1.5.1 Relai Diferensial ........................................................................................ 8 1.5.2 Relai Restricted Earth Fault (REF)............................................................. 9 1.5.3 Relai Arus Lebih (OCR) / Relai Gangguan ke Tanah (GFR) ......................9 1.5.4 Relai OVR / UVR....................................................................................... 9 1.5.5 Relai Standby Earth Fault (SBEF) atau Sensitive Earth Fault (SEF)........ 10 1.6 Announciator dan Alarm ..........................................................................10 1.7 Selector Switch........................................................................................ 10 1.8 Discrepancy Control Switch..................................................................... 11 1.9 Meter....................................................................................................... 11 1.10 Trip Circuit Supervision (TCS) ................................................................. 11 1.11 Failure Mode Effect Analisys (FMEA) ...................................................... 11 2 PEDOMAN PEMELIHARAAN................................................................. 11 2.1 In Service Inspection / Inspeksi Dalam Keadaan Operasi........................ 11 2.1.1 In Service Inspection Bay Transformator ................................................. 11 2.1.1.1 Inspeksi Harian Bay Transformer............................................................. 11 2.1.1.2 Inspeksi Bulanan Bay Transformer.......................................................... 12 2.1.2 In Service Inspection Bay Reaktor........................................................... 13 2.1.2.1 Inspeksi Harian Bay Reaktor ...................................................................13

    2.1.2.2 Inspeksi Bulanan Bay Reaktor.................................................................142.1.3 In Service Inspection Bay Kapasitor ........................................................ 14 2.1.3.1 Inspeksi Harian Bay Kapasitor................................................................. 14 2.1.3.2 Inspeksi Bulanan Bay Kapasitor .............................................................. 15 2.2 In Service Measurement / Pengukuran Dalam Keadaan Operasi ............ 16 2.2.1 In Service Measurement Bay Transformator............................................ 16 2.2.2 In Service Measurement Bay Reaktor ..................................................... 16 2.2.3 In Service Measurement Bay Kapasitor...................................................17 2.3 Shutdown Testing Measurement /Pengujian Pada Saat Sistem Tidak

    Bertegangan............................................................................................ 17 2.3.1 Shutdown Testing Bay Transformator......................................................17 2.3.1.1 Pengujian Relai Diferensial...................................................................... 17

    2.3.1.2 Pengujian Relai REF ............................................................................... 18

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    2.3.1.3 Pengujian Relai OCR/GFR ...................................................................... 18 2.3.1.4 Pengujian Relai SBEF.............................................................................18 2.3.1.5 Pengujian Skema OLS (Bila Ada) ............................................................ 18 2.3.1.6 Pengujian AVR ........................................................................................ 19

    2.3.1.7 Kalibrasi Meter......................................................................................... 19 2.3.1.8 Pengencangan Terminasi Wiring............................................................. 19 2.3.2 Shutdown Testing Bay Reaktor ............................................................... 19 2.3.2.1 Pengujian Relai Diferensial...................................................................... 19 2.3.2.2 Pengujian Relai REF ............................................................................... 19 2.3.2.3 Pengujian Relai OCR/GFR ...................................................................... 20 2.3.2.4 Pengujian Relai OVR / UVR ....................................................................20 2.3.2.5 Kalibrasi Meter......................................................................................... 20 2.3.2.6 Pengencangan Terminasi Wiring............................................................. 20 2.3.3 Shutdown Testing Bay Kapasitor............................................................. 20 2.3.3.1 Pengujian Relai OCR/GFR ...................................................................... 20 2.3.3.2 Pengujian Relai OVR / UVR ....................................................................21 2.3.3.3 Pengujian Relai Unbalance ..................................................................... 21 2.3.3.4 Kalibrasi Meter......................................................................................... 21 2.3.3.5 Pengencangan Terminasi Wiring............................................................. 21 2.4 Shutdown Function Check/ Pengujian Fungsi Pada Saat Sistem Tidak

    Bertegangan............................................................................................ 21 2.4.1 Shutdown Function Check Bay Transformator.........................................22 2.4.2 Shutdown Function Check Bay Reaktor .................................................. 22 2.4.3 Shutdown Function Check Bay Kapasitor................................................22 2.5 Pengujian/ Pemeriksaan Setelah Gangguan ...........................................23 2.5.1 Gangguan Malakerja Relai Proteksi......................................................... 25 2.5.2 Gangguan yang Mengakibatkan Penggantian Peralatan ......................... 26

    3 EVALUASI HASIL PEMELIHARAAN ..................................................... 283.1 Standar In Service Inspection ..................................................................28 3.2 Standar In Service Measurement ............................................................ 30 3.3 Standar Shutdown Testing ......................................................................31 3.4 Standar Pengujian Fungsi Sistem Proteksi.............................................. 32 3.4.1 Pengujian Fungsi PMT, Alarm, dan Announciator .................................... 32 3.4.2 Pengujian Fungsi Waktu Pemutusan Gangguan...................................... 32 4 REKOMENDASI HASIL PEMELIHARAAN............................................. 32 4.1 Rekomendasi Hasil Pemeliharaan In Service Inspection ......................... 32 4.2 Rekomendasi Hasil Pemeliharaan In Service Measurement .................... 34 4.3 Rekomendasi Hasil Pemeliharaan Shutdown Testing Measurement ....... 36 4.4 Rekomendasi Hasil Pemeliharaan Shutdown Function Check................. 41

    DAFTAR ISTILAH ...................................................................................................... 74 DAFTAR PUSTAKA................................................................................................... 75

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    DAFTAR GAMBAR

    Gambar 1-1 Pola proteksi transformator TT/TM................................ ........................... 4 Gambar 1-2 Pola proteksi transformator IBT TT/TT ......................................................4

    Gambar 1-3 Pola proteksi transformator IBT TET/TT................................ .................... 5 Gambar 1-4 Pola proteksi reaktor dengan relai diferensial............................................ 6 Gambar 1-5 Pola proteksi reaktor dengan relai REF.....................................................6 Gamb