ABB Relion 620 Series - Page 405

Example 3.
Iocos(φ) criterion selected, forward-type fault
=> FAULT_DIR = 1
Figure 199: Operating characteristic Iocos(φ) in forward fault
Example 4.
Iocos(φ) criterion selected, reverse-type fault
=> FAULT_DIR = 2
Figure 200: Operating characteristic Iocos(φ) in reverse fault
1MRS757644 H
Protection functions
620 series
Technical Manual
405