Fuji Electric EW32EAG - Chapter 1: Protecting Low-Voltage Circuits; 1-1 Description of Low-Voltage Circuit Protection; 1-2 Overcurrent Protection; 1-3 Phase-Loss Protection

3
Chapter 1
CONTENTS
Protecting low-voltage
circuits
1-1 Description ................................................................................................................4
1-2 Overcurrent protection
1-2-1 Overcurrent fault .............................................................................................................5
1-2-2 Overcurrent protection ....................................................................................................5
1-3 Phase-loss protection
1-3-1 Phase-loss fault ...............................................................................................................6
1-3-2 Phase-loss burnout protection (three-phase circuit) .......................................................6