ABB REF615 G User Manual

Parameter Values (Range) Unit Step Default Description
Zro A low limit 0.00...40.00 xIn 0.00 Low warning current limit for zero
sequence current
Zro A low low Lim 0.00...40.00 xIn 0.00 Low alarm current limit for zero
sequence current
Zro A deadband 100...100000 2500 Deadband configuration value for zero
sequence current for integral calculation.
(percentage of difference between min
and max as 0,001 % s)
8.1.9.5 Monitored data
Table 564: CSMSQI Monitored data
Name Type Values (Range) Unit Description
NgSeq-A FLOAT32 0.00...40.00 xIn Measured negative
sequence current
PsSeq-A FLOAT32 0.00...40.00 xIn Measured positive
sequence current
ZroSeq-A FLOAT32 0.00...40.00 xIn Measured zero
sequence current
8.1.9.6 Technical data
Table 565: CSMSQI Technical data
Characteristic
Value
Operation accuracy Depending on the frequency of the current
measured: f/f
n
= ±2 Hz
±1.0% or ±0.002 x I
n
at currents in the range of 0.01...4.00 x I
n
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5,…
8.1.10 Sequence voltage measurement VSMSQI
8.1.10.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Sequence voltage measurement VSMSQI U1, U2, U0 U1, U2, U0
Section 8 1YHT530004D05 D
Measurement functions
644 615 series
Technical Manual

ABB REF615 G Specifications

General

Type	Feeder Protection Relay
Rated Frequency	50/60 Hz
Binary Outputs	Up to 8
Communication Protocols	IEC 61850, Modbus RTU, DNP3
Protection Functions	Overcurrent, Earth fault, Thermal overload, Under/overvoltage
Standards	IEC 60255, IEC 61000