Buku Teknik Pemanfaatan Tenaga Listrik Jilid 3 Kelas 12 SMK

Buku Teknik Pemanfaatan Tenaga Listrik Jilid 3 Kelas 12 SMK


Kelas 12
Pengarang Prih Sumardjati,dkk.
Penerbit Pusat Perbukuan Departemen Pendidikan Nasional
Tahun 2008
Bagikan kepada teman anda.

Materi Teknik Pemanfaatan Tenaga Listrik Jilid 3


Teknik Pemanfaatan Tenaga Listrik iii
DAFTAR ISI

KATA PENGANTAR ...................................................................................... i
DAFTAR ISI .................................................................................................... iii
DAFTAR GAMBAR ........................................................................................ ix
DAFTAR TABEL ............................................................................................ xxiii

1. BAHAYA LISTRIK DAN SISTEM PENGAMANANNYA .......................... 1
1.1. Pendahuluan ..................................................................................... 1
1.2. Bahaya Listrik .................................................................................... 1
1.3. Bahaya Listrik bagi Manusia .............................................................. 2
1.3.1. Dampak sengatan listrik bagi manusia .................................. 2
1.3.2. Tiga faktor penentu tingkat bahaya listrik .............................. 2
1.3.3. Proses Terjadinya Sengatan Listrik ....................................... 4
1.3.4. Tiga faktor penentu keseriusan akibat sengatan listrik .......... 4
1.3.5. Kondisi-kondisi Berbahaya .................................................... 6
1.3.6. Sistem Pengamanan terhadap Bahaya Listrik ...................... 7
1.3.7. Alat Proteksi Otomatis ............................................................ 10
1.3.8. Pengaman pada peralatan portabel ...................................... 12
1.3.9. Prosedur Keselamatan Umum .............................................. 13
1.3.10. Prosedur Keselamatan Khusus ............................................. 15
1.4. Bahaya Kebakaran dan Peledakan ..................................................... 17
1.4.1. Penyebab Kebakaran dan Pengamanan ............................... 17
1.5. Sistem – IP berdasarkan DIN VDE 0470 ............................................. 20

2. INSTALASI LISTRIK ................................................................................ 22
2.1. Pendahuluan ................................................................................... 22
2.1.1. Sejarah Penyediaan Tenaga Listrik...................................... 23
2.1.2. Peranan Tenaga Listrik ....................................................... 24
2.1.3. Instalasi Penyediaan dan Pemanfaatan Tenaga Listrik ...... 25
2.1.4. Jaringan Listrik .................................................................... 29
2.1.5. Alat Pengukur dan Pembatas (APP) ................................... 36
2.1.6. Panel Hubung Bagi (PHB) ................................................... 43
2.1.7. Penghantar .......................................................................... 49
2.1.8. Beban Listrik ........................................................................ 52
2.1.9. Perhitungan Arus Beban ..................................................... 56
2.1.10. Bahan Kebutuhan Kerja Pemasangan Instalasi Listrik ........ 57
2.2. Peraturan Instalasi Listrik ................................................................ 58
2.2.1. Sejarah Singkat ................................................................... 58
2.2.2. Maksud dan Tujuan PUIL-2000 ........................................... 58
2.2.3. Ruang Lingkup .................................................................... 58
2.2.4. Garis Besar Isi PUIL-2000 ................................................... 58
2.2.5. Peraturan Menteri ................................................................ 63
2.2.6. Peraturan dan Undang-undang Lainnya ............................. 67
2.2.7. Pemasangan Instalasi Listrik ............................................... 69
2.3. Macam-macam Instalasi ................................................................. 71
2.4. Macam-macam Ruang Kerja Listrik ................................................ 73
2.5. Prinsip Dasar Instalasi Bangunan (IEC 364-1) ............................... 77
2.6. Pencahayaan .................................................................................. 79
2.6.1. Sifat gelombang cahaya ...................................................... 79
2.6.2. Pandangan Silau ................................................................. 80
2.6.3. Satuan-satuan Teknik Pencahayaan .................................. 81
2.6.4. Hukum Penerangan ............................................................ 83
2.6.5. Penyebaran Cahaya ............................................................ 84
2.6.6. Perancangan Penerangan Buatan ...................................... 86
2.6.7. Penggunaan Energi Untuk Pencahayaan Buatan ................ 98
2.7. Sejarah Perkembangan Sumber Cahaya ....................................... 121
2.7.1. Sumber Cahaya Dengan Lemak dan Minyak ...................... 121
2.7.2. Sumber Cahaya Dengan Gas ............................................. 123
2.7.3. Lampu Busur ....................................................................... 123
2.8. Macam-macam Lampu Listrik ......................................................... 125
2.8.1. Lampu Pijar ......................................................................... 125
2.8.2. Neon Sign (Lampu Tabung) ................................................ 131
2.8.3. Lampu Merkuri .................................................................... 137
2.8.4. Lampu Sodium .................................................................... 141
2.9. Kendali Lampu / Beban Lainnya ..................................................... 145
2.10. Perancangan dan Pemasangan Pipa Pada Instalasi Listrik ........... 155
2.10.1. Pipa Union ........................................................................... 155
2.10.2. Pipa Paralon / PVC ............................................................. 156
2.10.3. Pipa Fleksibel ...................................................................... 156
2.10.4. Tule / Selubung Pipa ........................................................... 156
2.10.5. Klem / Sangkang ................................................................. 157
2.10.6. Sambungan Pipa (Sock) ...................................................... 157
2.10.7. Sambungan Siku ................................................................. 157
2.10.8. Kotak Sambung ................................................................... 158
2.11. Sistem Pentanahan ......................................................................... 159
2.11.1. Pendahuluan ....................................................................... 159
2.11.2. Pentanahan Netral Sistem .................................................. 159
2.11.3. Pentanahan Peralatan ......................................................... 162
2.11.4. Elektroda Pentanahan dan Tahanan Pentanahan .............. 167
2.11.5. Jenis-Jenis Elektroda Pentanahan ...................................... 167
2.11.6. Tahanan Jenis Tanah .......................................................... 170
2.11.7. Tahanan Pentanahan Berdasarkan Jenis dan Ukuran
Elektroda ............................................................................. 170
2.11.8. Luas Penampang Elektroda Pentanahan ............................ 171
2.11.9. Luas Penampang Hantaran Pengaman .............................. 172
2.12. Pengujian Tahanan Pentanahan ..................................................... 174
2.12.1. Pengukuran Tahanan Pentanahan (Earth Tester) .............. 174
2.12.2. Posisi Elektroda Bantu Dalam Pengukuran ......................... 176
2.12.3. Pengukuran Tahanan Elektroda Pentanahan
Menggunakan Metoda 62% ................................................. 178
2.12.4. Jarak Peletakan Elektroda Bantu ........................................ 180
2.12.5. Sistem Multi-Elektroda ......................................................... 181
2.12.6. Metoda Pengukuran Dua-Titik (Metoda Penyederhanaan) .. 182
2.12.7. Pengukuran Kontinuitas ...................................................... 183
2.12.8. Petunjuk-petunjuk teknis pengukuran ................................. 183
2.13. Membuat Laporan Pengoperasian .................................................. 187
2.14. Gangguan Listrik ............................................................................. 190
2.14.1. Gejala Umum Gangguan Listrik .......................................... 190
2.14.2. Penyebab Gangguan ........................................................... 190
2.14.3. Diagnosis Gangguan ........................................................... 190
2.14.4. Mencari / Menemukan Gangguan ....................................... 190
2.15. Pemeliharaan / Perawatan ............................................................... 191
2.15.1. Pemeliharaan Rutin ............................................................. 191
2.15.2. Pemeliharaan Tanpa Jadwal / Mendadak ........................... 191
2.15.3. Objek Pemeriksaan ............................................................. 192
2.15.4. Pemeliharaan PHB – TR (Tegangan Rendah) .................... 192
2.15.5. Pemeliharaan Tiang ............................................................ 195
2.15.6. Pemeliharaan Pembumian .................................................. 195
2.15.7. Contoh Identifikasi Gangguan Pada Pembumian Netral
Pengaman ........................................................................... 196
2.15.8. Contoh Pengukuran dalam Pengujian Kontinuitas
Penghantar ........................................................................... 198
2.16. Simbol-simbol Gambar Listrik ......................................................... 200
2.16.1. Lambang Huruf Untuk Instrumen Ukur ................................ 200
2.16.2. Lambang Gambar Untuk Diagram ....................................... 201
2.16.3. Lambang Gambar Untuk Diagram Instalasi Pusat dan
Gardu Listrik ........................................................................ 206
2.16.4. Lambang Gambar untuk Diagram Instalasi Bangunan ........ 212
2.16.5. Nomenklatur Kabel .............................................................. 218
2.17. Latihan Soal .................................................................................... 221

3. PERALATAN LISTRIK RUMAH TANGGA .............................................. 222
3.1. Alat-Alat Laundry ............................................................................. 222
3.1.1. Seterika Listrik ..................................................................... 222
3.1.2. Mesin Cuci Pakaian ............................................................. 228
3.1.3. Mesin Pengering Pakaian .................................................... 236
3.1.4. Mesin Cuci Piring ................................................................. 241
3.1.5. Mesin Pembersih Vakum ..................................................... 246
3.2. Alat-Alat Memasak .......................................................................... 251
3.2.1. Toaster ................................................................................ 251
3.2.2. Kompor Listrik ..................................................................... 255
3.2.3. Microwave Oven .................................................................. 262
3.3. Alat-Alat Pemanas & Pendingin ...................................................... 267
3.3.1. Pengering Rambut .............................................................. 267
3.3.2. Kulkas dan Freezer ............................................................. 271
3.3.3. Alat Pendingin Ruangan ...................................................... 277
3.3.4. Alat Pemanas Air ................................................................. 283

4. SISTEM PENGENDALIAN ....................................................................... 288
4.1. Sistem Pengendali Elektronik ......................................................... 291
4.1.1. Pendahuluan ....................................................................... 291
4.1.2. Pengendali Tidak Kontinyu .................................................. 291
4.1.3. Pengendali Dua-Posisi ........................................................ 291
4.1.4. Pengendali Kontinyu ........................................................... 293
4.1.5. Pengendali Campuran.......................................................... 297
4.1.6. Pengendali Elektronik .......................................................... 299
4.2. Sistem Pengendali Elektronika Daya .............................................. 304
4.2.1. Pendahuluan ....................................................................... 304
4.2.2. Komponen Semikonduktor Daya ......................................... 305
4.2.3. Penyearah ........................................................................... 312
4.2.4. Pengendali Tegangan AC ................................................... 323
4.2.5. Kontrol Kecepatan dan Daya Motor Induksi Fasa Tiga ....... 324
4.2.6. Persiapan, Pengoperasian, dan Pemeriksaan Pengendali
Elektronika Daya ................................................................. 327
4.3. Sistem Pengendalian Motor ............................................................ 331
4.3.1. Kontaktor Magnit ................................................................. 333
4.3.2. Kontak Utama dan Kontak Bantu ........................................ 334
4.3.3. Kontaktor Magnit dengan Timer .......................................... 335
4.3.4. Rele Pengaman Arus Lebih (Thermal Overload Relay) ...... 336
4.3.5. Mengoperasikan dan Memelihara Sistem Pengendali
Elektromagnetik ................................................................... 337
4.4. Elektro Pneumatik ........................................................................... 343
4.4.1. Pendahuluan ....................................................................... 343
4.4.2. Simbol-Simbol ..................................................................... 343
4.4.3. Sistem Komponen ............................................................... 349

5. MESIN LISTRIK ........................................................................................ 353
5.1. Transformator Satu Fasa ................................................................ 356
5.1.1. Konstruksi dan Prinsip Kerja ............................................... 356
5.1.2. Transformator Ideal ............................................................. 358
Teknik Pemanfaatan Tenaga Listrik vii
5.1.3. Transformator Berbeban ..................................................... 360
5.1.4. Pengujian Transformator ..................................................... 364
5.1.5. Paralel Transformator .......................................................... 367
5.2. Transformator Tiga Fasa ................................................................. 369
5.2.1. Konstruksi Transformator .................................................... 369
5.2.2. Hubungan Transformator Tiga Fasa ................................... 373
5.2.3. Pengujian Transformator Tiga Fasa .................................... 377
5.3. Transformator Khusus ..................................................................... 381
5.3.1. Autotransformator ................................................................ 381
5.3.2. Transformator Pengukuran .................................................. 382
5.4. Generator Arus Searah ................................................................... 384
5.4.1. Konstruksi Mesin Arus Searah ............................................ 384
5.4.2. Tegangan Induksi ................................................................ 392
5.4.3. Reaksi Jangkar .................................................................... 393
5.4.4. Hubungan Generator Arus Searah ...................................... 394
5.4.5. Efisiensi ............................................................................... 396
5.4.6. Karakteristik Generator ........................................................ 397
5.5. Motor Arus Searah .......................................................................... 402
5.5.1. Prinsip Dasar ....................................................................... 402
5.5.2. Persamaan Tegangan dan Daya ......................................... 402
5.5.3. Torsi ..................................................................................... 403
5.5.4. Rugi-rugi Daya dan Efisiensi ............................................... 404
5.5.5. Macam-macam Hubungan Motor Arus Searah ................... 404
5.5.6. Karakteristik Motor Arus Searah .......................................... 406
5.6. Motor Induksi Tiga Fasa .................................................................. 408
5.6.1. Konstruksi dan Prinsip Kerja ............................................... 408
5.6.2. Frekuensi dan Slip Rotor ..................................................... 413
5.6.3. Rangkaian Ekuivalen ........................................................... 414
5.6.4. Torsi dan Daya .................................................................... 416
5.6.5. Penentuan Parmeter Motor Induksi ..................................... 420
5.6.6. Pengaturan Kecepatan Motor Induksi Tiga Fasa ................ 422
5.6.7. Pemilihan Motor ................................................................... 425
5.7. Generator Sinkron ........................................................................... 427
5.7.1. Pendahuluan ....................................................................... 427
5.7.2. Konstruksi ............................................................................ 427
5.7.3. Prinsip Kerja ........................................................................ 433
5.7.4. Alternator Tanpa Beban ...................................................... 435
5.7.5. Alternator Berbeban ............................................................ 436
5.7.6. Menentukan Resistansi dan Reaktansi ............................... 437
5.7.7. Pengaturan Tegangan ......................................................... 439
5.7.8. Kerja Paralel Alternator ....................................................... 442
5.8. Motor Sinkron .................................................................................. 444
5.8.1. Prinsip Kerja ........................................................................ 444
5.8.2. Motor Saat Berbeban .......................................................... 445
5.8.3. Daya Dihasilkan Motor Sinkron ........................................... 446
5.8.4. Efisiensi Motor Sinkron ........................................................ 447
5.8.5. Kurva V Motor Sinkron ........................................................ 448
5.8.6. Pengasutan Motor Sinkron .................................................. 449
5.9. Motor Satu Fasa .............................................................................. 451
5.9.1. Pendahuluan ....................................................................... 451
5.9.2. Motor Induksi Satu Fasa ..................................................... 452
5.9.3. Motor Seri Satu Fasa (Universal) ........................................ 464
5.10. Generator Set ................................................................................. 465
5.10.1. Pendahuluan ....................................................................... 465
5.10.2. Mesin Diesel ........................................................................ 466
5.10.3. Mengoperasikan Generator Set .......................................... 468
5.11. Memperbaiki Motor Listrik ............................................................... 477
5.11.1. Pendahuluan ....................................................................... 477
5.11.2. Perbaikan Dasar Motor Induksi ........................................... 478
5.11.3. Membongkar Kumparan Motor ............................................ 480
5.11.4. Pelilitan Kumparan Motor .................................................... 481
5.11.5. Laporan Pelaksanaan Pekerjaan ........................................ 486


6. PROGRAMMABLE LOGIC CONTROLLER ............................................ 487
6.1. Pendahuluan ................................................................................... 487
6.1.1. Sejarah Perkembangan PLC................................................ 488
6.1.2. Keuntungan Penggunaan PLC ............................................ 489
6.1.3. Penggunaan PLC di Industri ............................................... 489
6.2. Konsep Logika ................................................................................ 491
6.2.1. Fungsi Logika ...................................................................... 491
6.2.2. Rangkaian PLC dan Simbolik Kontak Logika ...................... 494
6.3. Arsitektur PLC ................................................................................. 495
6.3.1. Perangkat Keras .................................................................. 495
6.3.2. Arsitektur Internal ................................................................ 496
6.4. Pemrograman PLC ......................................................................... 498
6.4.1. Bahasa Pemograman PLC .................................................. 498
6.4.2. Operasi Pembacaan ............................................................ 499
6.4.3. Instruksi Dasar PLC ............................................................ 500
6.4.4. Pemograman dengan CX Programmer ............................... 503
6.4.5. Contoh Program .................................................................. 505

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