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Manual ibaPQU-S
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Issue 1.3
The signals Un and In are optional input signals that do not have to be assigned.
The option “Show line-to-line” allows the voltages U12, U23 and U31 to be provided
also in a star system.
If the signals are not assigned, ibaPQU-S calculates these values. If the signals are
measured, the raw values serve as the basis for the other calculations.
11.
Under “Measured values” select whether voltages only, currents only or voltages and
currents are measured.
12. To perform measurements according to a defined stand
ard, click the link “Click to
configure standards...” and select the desired standard.
By selecting the standard, all characteristic values required for measurement and
calculation according to the standard are determined automatically. The selection
causes the corresponding submodules comprising the different power quality char-
acteristic values to be added to the “Grid” module.
13.
If the standard “EN50160” is selected, 7 submodules are displayed which determine
all characteristic values required as per DIN EN 50160 (power frequency, supply volt-
age variation, flicker severity, supply voltage unbalance, harmonic voltage, mains sig-
nalling voltage, voltage events).