ABB relion REF615 Applications Manual page 187

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-96FB05DC-7A3B-4A22-AA35-1963D950722B V1 EN
Figure 239: Residual voltage protection function
SEQSPVC1_FUSEF_U
GUID-4CDD5E93-A445-40B2-9613-904A3ADFB339 V2 EN
Figure 240: Negative-sequence overvoltage protection function
SEQSPVC1_FUSEF_U
GUID-4D2257BB-0968-4E93-9124-BCBBE323AC4B V2 EN
Figure 241: Positive-sequence undervoltage protection function
General start and operate 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 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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