ABB REF615 L User Manual

U_A
U_C
U_B
ST_B
ST_C
ST_A
DIPST
INTST
SWELLST
SWELLOPR
INTOPR
DIPOPR
Voltage
Int set
Voltage dip set
Voltage swell set
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
ST_B
ST_C
ST_A
DIPST
INTST
SWELLST
SWELLOPR
INTOPR
DIPOPR
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
A) Three phase mode
B) Single phase mode
GUID-1C0C906B-EC91-4C59-9291-B5002830E590 V1 EN
Figure 420: Concurrent dip and two-phase swell
10.3.5 Recorded data
Besides counter increments, the information required for a later fault analysis is
stored after a valid voltage variation is detected.
Recorded data information
When voltage variation starts, the phase current magnitudes preceding the
activation moment are stored. Also, the initial voltage magnitudes are temporarily
stored at the variation starting moment. If the variation is, for example, a two-phase
voltage dip, the voltage magnitude of the non-active phase is stored from this same
moment, as shown in Figure 421. The function tracks each variation-active voltage
1YHT530004D05 D Section 10
Power quality measurement functions
615 series 781
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