ABB RER620, Technical Manual

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1MAC309294-MB F
Section 7
Measurement functions
RER620 405
Technical Manual
7.1.9.5 Monitored data
Table 367: V1, V2, V0 Monitored data
7.1.9.6 Technical data
Table 368: V1, V2, V0 Technical data
Name Type Values (Range) Unit Description
V2-kV FLOAT32 0.00...4.00 xVn Measured negative sequence voltage
V1-kV FLOAT32 0.00...4.00 xVn Measured positive sequence voltage
V0-kV FLOAT32 0.00...4.00 xVn Measured zero sequence voltage
V2_INST FLOAT32 0.00...4.00 xVn Negative sequence voltage amplitude,
instantaneous value
V2_DB FLOAT32 0.00...4.00 xVn Negative sequence voltage amplitude, reported
value
V2_RANGE Enum 0=normal
1=high
2=low
3=high-high
4=low-low
Negative sequence voltage amplitude range
V1_INST FLOAT32 0.00...4.00 xVn Positive sequence voltage amplitude,
instantaneous value
V1_DB FLOAT32 0.00...4.00 xVn Positive sequence voltage amplitude, reported
value
V1_RANGE Enum 0=normal
1=high
2=low
3=high-high
4=low-low
Positive sequence voltage amplitude range
V0_INST FLOAT32 0.00...4.00 xVn Zero sequence voltage amplitude, instantaneous
value
V0_DB FLOAT32 0.00...4.00 xVn Zero sequence voltage amplitude, reported value
V0_RANGE Enum 0=normal
1=high
2=low
3=high-high
4=low-low
Zero sequence voltage amplitude range
Characteristic Value
Operation accuracy Depending on the frequency of the voltage
measured: f
n
±2Hz
At voltages in range 0.01…1.15 x V
n
±1.0% or ±0.002 x V
n
Suppression of harmonics DFT: -50 dB at f = n x f
n
, where n = 2, 3, 4, 5,…