ABB RER620, Technical Manual

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Section 7
Measurement functions
RER620 395
Technical Manual
7.1.4.6 Technical data
Table 345: IA, IB, IC Technical data
7.1.5 Three-phase voltage VA, VB, VC
7.1.5.1 Identification
7.1.5.2 Function block
Figure 211: Function block
7.1.5.3 Signals
Table 346: VA, VB, VC Input signals
Table 347: VA, VB, VC Output signals
Characteristic Value
Operation accuracy Depending on the frequency of the current measured: f
n
±2Hz
±0.5% or ±0.002 x I
n
(at currents in the range of 0.01...4.00 x I
n
)
Suppression of harmonics DFT: -50dB at f = n x f
n
, where n = 2, 3, 4, 5,…
RMS: No suppression
Note: The relay may indicate non-zero phase current measurements in the range of 0.003...0.01 x In when
the recloser is in the open state.
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Three-phase voltage VMMXU 3U VA, VB, VC
Name Type Default Description
V_A_AB SIGNAL 0 Phase A voltage
V_B_BC SIGNAL 0 Phase B voltage
V_C_CA SIGNAL 0 Phase C voltage
BLOCK BOOLEAN 0=False Block signal for all binary outputs
Name Type Description
HIGH_ALARM BOOLEAN High alarm
HIGH_WARN BOOLEAN High warning
LOW_WARN BOOLEAN Low warning
LOW_ALARM BOOLEAN Low alarm