ABB Relion 615 series - Page 83

EFPADM1
O:47|T:5|I:1
BLOCK
RELEASE
TRIP
PICKUP
EFPADM2
O:19|T:5|I:2
BLOCK
RELEASE
TRIP
PICKUP
EFPADM3
O:20|T:5|I:3
BLOCK
RELEASE
TRIP
PICKUP
OR6
O:125|T:2.5|I:57
B1
B2
B3
B4
B5
B6
O
EFPADM1_21YN-1_TRIP
EFPADM1_21YN-1_TRIP
EFPADM2_21YN-2_TRIP
EFPADM2_21YN-2_TRIP
EFPADM3_21YN-3_TRIP
EFPADM3_21YN-3_TRIP
EFPADM1_21YN-1_PICKUP
EFPADM2_21YN-2_PICKUP
EFPADM3_21YN-3_PICKUP
EFPADM_TRIP
GUID-70662C28-1D88-4880-9980-52E13F85D11A V1 EN
Figure 61: Admittance-based ground-fault protection function
Phase discontinuity protection PDNSPTOC1_46PD protects for interruptions in the
normal three-phase load supply, for example, in downed conductor situations. The
function is blocked in case of detection of a failure in secondary circuit of voltage
transformer.
PDNSPTOC1
O:33|T:5|I:1
BLOCK TRIP
PICKUP
PDNSPTOC1_46PD_TRIP
PDNSPTOC1_46PD_PICKUP
CCSPVC1_CCM_FAIL
GUID-DC0123F0-F3C2-42C0-8CC5-8BD4B3AB65D2 V1 EN
Figure 62: Phase discontinuity protection
Three-phase thermal protection for feeders, cables and distribution transformers
T1PTTR1_49F-1 detects overloads under varying load conditions. The BLK_CLOSE
output of the function is used to block the closing operation of circuit breaker.
T1PTTR1
O:70|T:5|I:1
BLOCK
ENA_MULT
AMB_TEMP
TRIP
PICKUP
ALARM
BLK_CLOSE
T1PTTR1_49F-1_BLK_CLOSE
T1PTTR1_49F-1_PICKUP
T1PTTR1_49F-1_TRIP
T1PTTR1_49F-1_ALARM
GUID-891DC1E3-EEBB-42CD-8EB5-D7E5C94277B0 V1 EN
Figure 63: Thermal overcurrent protection function
1MAC109016-MB C Section 3
REF615 standard configurations
REF615 ANSI 77
Application Manual