ABB RED615 - Page 75

PHIPTOC1
BLOCK
ENA_MULT
OPERATE
START
PHIPTOC1_OPERATEX120_BI1_EXT_OC_BLOCKING
PHIPTOC1_START
DPHHPDOC1
BLOCK
ENA_MULT
NON_DIR
OPERATE
START
DPHLPDOC1
BLOCK
ENA_MULT
NON_DIR
OPERATE
START
DPHLPDOC2
BLOCK
ENA_MULT
NON_DIR
OPERATE
START
DPHLPDOC2_OPERATE
DPHHPDOC1_OPERATE
DPHLPDOC1_OPERATE
DPHHPDOC1_START
DPHLPDOC1_START
DPHLPDOC2_START
OR6
B1
B2
B3
B4
B5
B6
O
DPHLPDOC2_OPERATE
DPHHPDOC1_OPERATE
DPHLPDOC1_OPERATE
DPHxPDOC_OPERATE
GUID-54378804-2337-4274-83AD-186C666871E0 V1 EN
Figure 59: Overcurrent protection functions
The upstream blocking from the start of the instantaneous as well as the high stage
overcurrent protection function is connected to the binary output X110:SO1. This
output can be used to send a blocking signal to the relevant overcurrent protection
stage of the protection relay at the upstream bay.
OR6
B1
B2
B3
B4
B5
B6
O
UPSTREAM_OC_BLOCKINGPHIPTOC1_START
GUID-A8F61C44-1CA7-4B82-8271-52E1469CDF37 V1 EN
Figure 60: Upstream blocking logic
Three stages are provided for directional earth-fault protection. According to the order
code, the directional earth-fault protection method can be based on conventional
directional earth-fault DEFxPDEF only or alternatively together with admittance-
based earth-fault protection EFPADM, wattmetric-based earth-fault protection
WPWDE or harmonics-based earth-fault protection HAEFPTOC. In addition, there is
a dedicated protection stage INTRPTEF either for transient-based earth-fault
protection or for cable intermittent earth-fault protection in compensated networks.
1MRS758127 C Section 3
RED615 standard configurations
RED615 69
Application Manual