ABB relion REF615 Applications Manual page 209

1MRS756378 S
REF615
Application Manual
Four overcurrent stages are offered for overcurrent and short-circuit protection. Three
of them include directional functionality DPHxPDOC.
GUID-9E341F53-8AB2-4A2C-B776-B26D19CAB8F9 V1 EN
Figure 279: Overcurrent protection function
DPHHPDOC1_OPERATE
DPHLPDOC1_OPERATE
DPHLPDOC2_OPERATE
GUID-C39AC382-EF6F-42D4-9F57-A295796FE592 V1 EN
Figure 280: Directional overcurrent protection function
The upstream blocking from the start of the second low stage of three-phase
directional overcurrent protection DPHLPDOC2 is connected to the binary output
X110:SO1. This output can be used for sending a blocking signal to the relevant
overcurrent protection stage of the IED at the infeeding bay.
DPHLPDOC2_START
GUID-AAA165D7-458D-41C8-9691-E402B65ADC68 V1 EN
Figure 281: Upstream blocking logic
REF615 standard configurations
PHIPTOC1
BLOCK OPERATE
ENA_MULT START
DPHHPDOC1
BLOCK OPERATE
ENA_MULT START
NON_DIR
DPHLPDOC1
BLOCK OPERATE
ENA_MULT START
NON_DIR
DPHLPDOC2
BLOCK OPERATE
ENA_MULT START
NON_DIR
OR6
B1 O
B2
B3
B4
B5
B6
OR6
B1 O
B2
B3
B4
B5
B6
Section 3
PHIPTOC1_OPERATE
PHIPTOC1_START
DPHHPDOC1_OPERATE
DPHHPDOC1_START
DPHLPDOC1_OPERATE
DPHLPDOC1_START
DPHLPDOC2_OPERATE
DPHLPDOC2_START
DPHxPDOC_OPERATE
UPSTEAM_OC_BLOCKING
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