ABB RELION REX640 Technical Manual page 437

1MRS759142 C
REX640
Technical Manual
Iosin(φ) criterion selected, forward-type fault
=> FAULT_DIR = 1
GUID-1EDCE64D-4CE3-455B-A274-C6AF085425FC V1 EN
Figure 230: Operating characteristic Iosin(φ) in forward fault
The operating sector is limited by angle correction, that is, the operating sector is 180
degrees - 2*(angle correction).
Example 2.
Iosin(φ) criterion selected, reverse-type fault
=> FAULT_DIR = 2
Section 4
Protection functions
431