ABB Relion 620 Series - Page 404

Figure 197: 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
Figure 198: Operating characteristic Iosin(φ) in reverse fault
Protection functions
1MRS757644 H
404 620 series
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