ABB RELION 670 Series Technical Manual page 1278

Section 21
Basic IED functions
21.12.3 Settings
Table 994: PRIMVAL Non group settings (basic)
Name Values (Range)
Frequency 50.0 - 60.0
PhaseRotation Normal=ABC
Inverse=ACB
1272
Unit Step Default
Hz 10.0 50.0
- - Normal=ABC
1MRK 502 066-UUS B
Description
Rated system frequency
System phase rotation
Technical manual
PID-1626-SETTINGS v17