ABB Relion 615 series - Page 113

OR6
O:151|T:2.5|I:65
B1
B2
B3
B4
B5
B6
O
UPSTEAM_OC_BLOCKINGDPHLPDOC2_67/51P-2_PICKUP
GUID-ED03DF9D-6486-4D57-81B2-C7CFCCB7FC31 V1 EN
Figure 111: Upstream blocking logic
The output BLK2H of three-phase inrush detector INRPHAR1_INR-1 enables either
blocking the function or multiplying the active settings for any of the available
overcurrent or ground-fault function blocks.
INRPHAR1
O:107|T:2.5|I:1
BLOCK BLK2H
INRPHAR1_INR-1_BLK2H
GUID-877B89DE-CBF8-4976-8121-4F5AAB01111B V1 EN
Figure 112: Inrush detector function
Two negative-sequence overcurrent protection stages NSPTOC1_46-1 and
NSPTOC2_46-2 are provided for phase unbalance protection. These functions are used to
protect the feeder against phase unbalance. Both the negative-sequence overcurrent
protections are blocked in case of detection in failure in secondary circuit of current
transformer.
NSPTOC1
O:24|T:5|I:1
BLOCK
ENA_MULT
TRIP
PICKUP
NSPTOC2
O:25|T:5|I:2
BLOCK
ENA_MULT
TRIP
PICKUP
NSPTOC2_46-2_TRIP
NSPTOC1_46-1_TRIP
NSPTOC1_46-1_PICKUP
NSPTOC2_46-2_PICKUP
NSPTOC1
O:54|T:5|I:1
BLOCK
ENA_MULT
TRIP
PICKUP
NSPTOC2
O:55|T:5|I:2
BLOCK
ENA_MULT
TRIP
PICKUP
NSPTOC1_46-1_TRIP
NSPTOC2_46-2_TRIP
NSPTOC1_46-1_PICKUP
NSPTOC2_46-2_PICKUP
CCSPVC1_CCM_FAIL
CCSPVC1_CCM_FAIL
GUID-CB92D4CF-F779-45BE-A753-26A71FBF9556 V1 EN
Figure 113: Negative-sequence overcurrent protection function
Four stages are provided for non-directional ground-fault protection EFHPTOC1….
4_50G-1/2, 50N-1/2. Three stages are provided for directional ground-fault protection.
According to the relay's order code, the directional ground-fault protection method can be
based on conventional directional ground-fault DEFxPDEF_67/51N-1/2, 67/50N-1/2,
only or alternatively used together with admittance-based ground-fault protection
EFPADM_21YN or wattmetric-based ground-fault protection WPWDE_32N. A
dedicated protection stage INTRPTEF_67NIEF is used either for transient-based ground-
fault protection or for cable intermittent ground-fault protection in compensated
networks.
1MAC109016-MB C Section 3
REF615 standard configurations
REF615 ANSI 107
Application Manual