Page 3 - EMODUL INSTALASI MOTOR LISTRIK

DAFTAR ISI

KATA PENGANTAR ...................................................................................................... i

DAFTAR ISI ................................................................................................................... ii

KOMPETENSI ISI DAN KOMPETENSI DASAR ...................................................... iii
PETA KONSEP ...............................................................................................................v

A. KOMPONEN DAN PRINSIP PROTEKSI INSTALASI MOTOR LISTRIK .......1
1. Komponen Motor Listrik ........................................................................................1

a. Thermal Overload Relay (TOR) ..................................................................1
b. Grounding (System Pembumian).................................................................1

c. Sistem Kontrol Motor Listrik ......................................................................2

d. Circuit Breaker (CB) ...................................................................................2
e. Fuse (Sekring) .............................................................................................3

2. Jenis -Jenis Proteksi Motor Listrik ..........................................................................3
a. Proteksi Hubungan Singkat .........................................................................3

b. Proteksi Beban Lebih ..................................................................................3
c. Proteksi Hubungan Singkat dan Beban Lebih ..............................................4

3. Prinsip Kerja Proteksi Motor Listrik .......................................................................4

a. Prinsip Kerja Proteksi Hubungan Singkat ....................................................4
b. Prisip Kerja Proteksi Beban Lebih ...............................................................7

c. Prinsip Kerja Proteksi Hubungan Singkat dan Beban Lebih ....................... 11

B. JENIS-JENIS PROTEKSI INSTALASI MOTOR LISTRIK ............................... 12
1. Proteksi Terhadap Gesekan ................................................................................... 13

2. Proteksi Terhadap Suhu ........................................................................................ 14
3. Proteksi Terhadap Beban ...................................................................................... 16

C. PROTEKSI TERHADAP GANGGUAN PADA MOTOR LISTRIK ................... 19
1. Proteksi Stator (Stator Protection) ......................................................................... 19

2. Proteksi Rotor (Rotor Protection).......................................................................... 20

3. Proteksi Beban Lebih (Overload Protection) ......................................................... 20
4. Proteksi Ketidakseimbangan dan Memfasa Tunggal ............................................. 21

5. Proteksi Tegangan Kurang (Undervoltage Relay) ................................................. 22
6. Proteksi Fasa Terbalik (Reverse Phase Protection) ................................................ 23

7. Kehilangan Sinkronisasi (Loss of Synchronism) ................................................... 24

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