![ABB relion REF615 Applications Manual Download Page 302](http://html.mh-extra.com/html/abb/relion-ref615/relion-ref615_applications-manual_2824302.webp)
3.12.3.1
Functional diagrams for protection
The functional diagrams describe the protection functionality of the IEDs in detail and
according to the factory set default connections.
Five overcurrent stages are offered for overcurrent and short-circuit protection. Two
of them include directional functionality DPHxPDOC. Three-phase non-directional
overcurrent protection, instantaneous stage, PHIPTOC1 can be blocked by energizing
the binary input X130: BI1.
PHHPTOC1
BLOCK
ENA_MULT
OPERATE
START
PHHPTOC1_OPERATE
PHHPTOC1_START
PHLPTOC1
BLOCK
ENA_MULT
OPERATE
START
PHLPTOC1_OPERATE
PHLPTOC1_START
OR6
B1
B2
B3
B4
B5
B6
O
PHIPTOC1_OPERATE
PHLPTOC1_OPERATE
PHHPTOC1_OPERATE
PHxPTOC_OPERATE
PHIPTOC1
BLOCK
ENA_MULT
OPERATE
START
PHIPTOC1_OPERATE
PHIPTOC1_START
X130_BI1_EXT_OC_BLOCKING
GUID-BD0A9F06-B0A0-4DA9-B6C7-FDED4A790786 V1 EN
Figure 447:
Overcurrent protection function
DPHHPDOC1
BLOCK
ENA_MULT
NON_DIR
OPERATE
START
DPHLPDOC1
BLOCK
ENA_MULT
NON_DIR
OPERATE
START
DPHHPDOC1_OPERATE
DPHLPDOC1_OPERATE
DPHHPDOC1_START
DPHLPDOC1_START
OR
B1
B2
O
DPHHPDOC1_OPERATE
DPHLPDOC1_OPERATE
DPHxPDOC_OPERATE
GUID-4F6D1599-A6AE-4742-8599-84B85535E2B5 V1 EN
Figure 448:
Directional overcurrent protection function
Section 3
1MRS756378 S
REF615 standard configurations
296
REF615
Application Manual
Summary of Contents for relion REF615
Page 1: ...Relion 615 series Feeder Protection and Control REF615 Application Manual ...
Page 2: ......
Page 22: ...16 ...
Page 398: ...392 ...
Page 402: ...396 ...
Page 403: ...397 ...