ABB RELION 620 Series Technical Manual page 649

1MAC504801-IB E
7.1.4.6
7.1.5
7.1.5.1
7.1.5.2
7.1.5.3
620 series ANSI
Technical Manual
Technical data
Table 467: IA, IB, IC Technical data
Characteristic
Operation accuracy
Suppression of harmonics
Three-phase voltage measurement VA, VB, VC
Identification
Function description
Three-phase voltage measurement
Function block
GUID-5B741292-7FA6-4DEA-8D16-B530FD16A0FE-ANSI V1 EN
Figure 325: Function block
Signals
Table 468: VA, VB, VC Input signals
Name Type
V_A_AB SIGNAL
V_B_BC SIGNAL
V_C_CA SIGNAL
BLOCK BOOLEAN
Measurement functions
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
at currents in the range of 0.01...4.00 × I
Current:
±0.5% or ±0.002 × I
(at currents in the range of 0.01...4.00 × I
Phase angle:
±2.5°
DFT: -50 dB at f = n × f
RMS: No suppression
IEC 61850 IEC 60617
identification identification
VMMXU 3U
Default Description
0 Phase A voltage
0 Phase B voltage
0 Phase C voltage
0=False Block signal for all binary outputs
Section 7
n
n
)
n
, where n = 2, 3, 4, 5,...
n
ANSI/IEEE C37.2
device number
VA, VB, VC
643