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IEC09000636 V1 EN-US
Figure 265: Directional function characteristic
1.
RCA = Relay characteristic angle
2.
ROA = Relay operating angle
3.
Reverse
4. Forward
8.2.3.1
Settings for each step
M12982-19 v10.1.1
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
Table 32: Inverse time characteristics
Curve name
ANSI Extremely Inverse
ANSI Very Inverse
ANSI Normal Inverse
Table continues on next page
1MRK 505 343-UEN B
Section 8
Current protection
407
Application manual
Summary of Contents for Relion 670 series
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