ABB RER620, Техническое руководство

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Section 7
1MAC309294-MB F
Measurement functions
400 RER620
Technical Manual
Table 357: VG Output signals
7.1.7.4 Settings
Table 358: VG Non group settings
7.1.7.5 Monitored data
Table 359: VG Monitored data
7.1.7.6 Technical data
Table 360: VG Technical data
Name Type Description
HIGH_ALARM BOOLEAN High alarm
HIGH_WARN BOOLEAN High warning
Parameter Values (Range) Unit Step Default Description
Operation 1=Enable
5=Disable
1=Enable Operation Off / On
Measurement mode 1=RMS
2=DFT
2=DFT Selects used measurement mode
V Hi high limit res 0.00...4.00 xVn 0.20 High alarm voltage limit
V high limit res 0.00...4.00 xVn 0.05 High warning voltage limit
V deadband res 100...100000 10000 Deadband configuration value for integral calculation. (percentage of
difference between min and max as 0,001% s)
Name Type Values (Range) Unit Description
VG-kV FLOAT32 0.00...4.00 xVn Measured ground voltage
VG_INST FLOAT32 0.00...4.00 xVn Ground voltage Amplitude, magnitude of
instantaneous value
VG_DB FLOAT32 0.00...4.00 xVn Ground voltage Amplitude, magnitude of reported
value
VG_RANGE Enum 0=normal
1=high
2=low
3=high-high
4=low-low
Ground voltage Amplitude range
Characteristic Value
Operation accuracy Depending on the frequency of the current
measured: f/f
n
= ±2Hz
±0.5% or ±0.002 x V
n
Suppression of harmonics DFT: -50dB at f = n x f
n
, where n = 2, 3, 4, 5,…
RMS: No suppression