ABB RELION Series Technical Manual page 304

Section 4
Protection functions
298
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Figure 151: Operating characteristic Iosin(φ) in reverse fault
Example 3.
Iocos(φ) criterion selected, forward-type fault
=> FAULT_DIR = 1
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Figure 152: Operating characteristic Iocos(φ) in forward fault
Example 4.
1MRS758755 A
REC615 and RER615
Technical Manual