ABB RELION 620 Series Technical Manual page 651

1MAC504801-IB E
7.1.5.6
7.1.6
7.1.6.1
7.1.6.2
7.1.6.3
620 series ANSI
Technical Manual
Technical data
Table 472: VA, VB, VC Technical data
Characteristic
Operation accuracy
Suppression of harmonics
Residual current measurement IG
Identification
Function description
Residual current measurement
Function block
A070778-ANSI V1 EN
Figure 326: Function block
Signals
Table 473: IG Input signals
Name Type
IG SIGNAL
BLOCK BOOLEAN
Table 474: IG Output signals
Name Type
HIGH_ALARM BOOLEAN
HIGH_WARN BOOLEAN
Measurement functions
Value
Depending on the frequency of the voltage
measured: f ±2 Hz
n
At voltages in range 0.01...1.15 × V
Voltage:±0.5% or ±0.002 × V
Phase angle:±2.5°
DFT: -50 dB at f = n × f
RMS: No suppression
IEC 61850 IEC 60617
identification identification
RESCMMXU Io
Default Description
0 Ground current
0=False Block signal for all binary outputs
Description
High alarm
High warning
Section 7
n
n
, where n = 2, 3, 4, 5,...
n
ANSI/IEEE C37.2
device number
IG
645