Settings For Steps 1 To 4 - ABB REL650 Applications Manual

Section 7
Current protection
7.4.3.1
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ANSI09000636 V1 EN
Figure 91: Directional function characteristic
1. RCA = Relay characteristic angle 55°
2. ROA = Relay operating angle 80°
3. Reverse
4. Forward

Settings for steps 1 to 4

n: means step 1 and 4. x means step 1, 2, 3 and 4.
: The directional mode of step x. Possible settings are .
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4
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1MRK 506 334-UUS A
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ANSI09000636-1-en.vsd
Application manual