ABB 615 Series ANSI, Техническое руководство

Страница: 567 / 713

Section 8
1MAC050144-MB C
Measurement functions
560 615 series ANSI
Technical Manual
Table 472: VG Output signals
8.7.4 Settings
Table 473: VG Non group settings
8.7.5 Monitored data
Table 474: VG Monitored data
8.7.6 Technical data
Table 475: 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 xVnGround 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
Pickup 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