ABB REL670 2.2 IEC - Settings for each Step

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IEC09000636 V2 EN-US
Figure 253: Directional function characteristic
1. RCA = Relay characteristic angle
2. ROA = Relay operating angle
3. Reverse
4. Forward
9.2.3.1 Settings for each step
M12982-19 v10
x means step 1, 2, 3 and 4.
DirModex: The directional mode of step x. Possible settings are Off/Non-
directional/Forward/Reverse.
Characteristx: Selection of time characteristic for step x. Definite time delay and
different types of inverse time characteristics are available according to Table
33.
1MRK 506 369-UEN B Section 9
Current protection
Line distance protection REL670 2.2 IEC 463
Application manual