ABB REF615 L User Manual

arrows define the non-directional functionality where faults can be detected in both
directions.
GUID-276A9D62-BD74-4335-8F20-EC1731B58889 V1 EN
Figure 114: Closed-ring network topology where feeding lines are protected
with directional overcurrent IEDs
4.1.4.8 Signals
Table 219: DPH3LPDOC Input signals
Name
Type Default Description
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
ENA_MULT BOOLEAN 0=False Enable signal for current multiplier
NON_DIR BOOLEAN 0=False Forces protection to non-directional
Table 220: DPH3HPDOC Input signals
Name
Type Default Description
BLOCK BOOLEAN 0=False Block signal for activating the blocking mode
ENA_MULT BOOLEAN 0=False Enable signal for current multiplier
NON_DIR BOOLEAN 0=False Forces protection to non-directional
1YHT530004D05 D Section 4
Protection functions
615 series 219
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