ABB relion REF615 Applications Manual page 217

1MRS756378 S
REF615
Application Manual
The residual overvoltage protection ROVPTOV provides earth-fault protection by
detecting an abnormal level of residual voltage. It can be used, for example, as a
nonselective backup protection for the selective directional earth-fault functionality.
ROVPTOV1_OPERATE
ROVPTOV2_OPERATE
ROVPTOV3_OPERATE
GUID-95D18A13-DA98-4822-B5DE-4A044A48C940 V1 EN
Figure 295: Residual overvoltage protection function
SEQSPVC1_FUSEF_U
GUID-385727B9-A09E-40C1-A51D-630C0400338D V2 EN
Figure 296: Negative sequence overvoltage protection function
SEQSPVC1_FUSEF_U
GUID-656C28DB-7231-45CD-8864-15F39FF2C6A4 V2 EN
Figure 297: Positive sequence undervoltage protection function
General start and operate signals from all the functions are connected to minimum
pulse timer TPGAPC1 for setting the minimum pulse length for the outputs. The
output from TPGAPC1 is connected to binary outputs.
If a new protection function block to the configuration is added, check
the activation logic and also add the connections.
REF615 standard configurations
ROVPTOV1
BLOCK OPERATE
START
ROVPTOV2
BLOCK OPERATE
START
ROVPTOV3
BLOCK OPERATE
START
OR6
B1 O
B2
B3
B4
B5
B6
NSPTOV1
BLOCK OPERATE
START
PSPTUV1
BLOCK OPERATE
START
Section 3
ROVPTOV1_OPERATE
ROVPTOV1_START
ROVPTOV2_OPERATE
ROVPTOV2_START
ROVPTOV3_OPERATE
ROVPTOV3_START
ROVPTOV_OPERATE
NSPTOV1_OPERATE
NSPTOV1_START
PSPTUV1_OPERATE
PSPTUV1_START
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