ABB REF615 L User Manual

GUID-0383F2EF-18CC-45A0-A9BC-E04658981495 V2 EN
Figure 203: Blocking of line differential functions during detected transformer
startup current
If the protection stage is allowed to start during the inrush situation, the time delay
can be selected so that the stabilized stage does not operate in the inrush situation.
4.3.1.7 Signals
Table 331: LNPLDF Input signals
Name
Type Default Description
I_LOC_A SIGNAL 0 Phase A local current
I_LOC_B SIGNAL 0 Phase B local current
I_LOC_C SIGNAL 0 Phase C local current
I_REM_A SIGNAL 0 Phase A remote current
I_REM_B SIGNAL 0 Phase B remote current
I_REM_C SIGNAL 0 Phase C remote current
BLOCK BOOLEAN 0=False Signal for blocking the function
BLOCK_LS BOOLEAN 0=False Signal for blocking the stab. stage
ENA_MULT_HS BOOLEAN 0=False Enables the high stage multiplier
1YHT530004D05 D Section 4
Protection functions
615 series 379
Technical Manual

ABB REF615 L Specifications

General

Type	Feeder Protection Relay
Rated Frequency	50/60 Hz
Weight	Approx. 1.5 kg
Communication Protocols	IEC 61850, Modbus RTU, DNP3
Protection Functions	Overcurrent, Earth fault, Thermal overload, Under/Over voltage, Under/Over frequency
Enclosure	IP20