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Notes
– All the measurements are averaged over one second
– If a transformer is used for the voltage measurement, the harmonic voltage measurements may be erroneous due
to the filter behavior of the transformer. The use of a high quality transformer will minimize the error.
•
(1) The range values have to be multiplied by the CT ratio (Irms - I1 - P - Q - S - missing Q) and the PT ratio
(Vrms - V1 - P - Q - S - missing Q).
•
(2) Displacement power factor or cos
This value is used as the reference value by Electricity Supplies Companies.
•
(3) Power factor: calculation based on the fundamental and harmonic values of the measurements. The power
factor is always lower than or equal to the displacement power factor.
The Overview menu displays all measured items in a list.
The user may customize the display of the measurement values to his particular needs just by moving the important
items in the list to a desired position.
Click on the item in the list to be moved (in the below example, the THDV L-L is chosen)
Then click on the position where the item in the list should be moved (in the example hereafter the THDV L-L is
placed on the Frequency position, this one being moved automatically just below in the list)
STATUS
Approved
: calculation based on the fundamental value of the measurements.
SECURITY LEVEL
Public
PO WER FACTO R CON TR O LL ER RV T
Item to
move
DOCUMENT ID
9AKK107045A9645
REV.
LANG.
PAGE
D
en
33/542
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