ABB RER620 Technical Manual page 315

1MAC309294-MB F
RER620
Technical Manual
A Phase
B Phase
C Phase
Figure 159: OOAP mode logic
Summary of Single-Phase Tripping
The following diagrams illustrates overall logical diagram, the state of different poles for
different faults, based on the settings in use.
Control functions
OPUP
Allow Single Phase Trip
OOAP
OOAP
Allow Three Phase Trip
OOAP
OOAP
Section 5
309