IBA ibaPQU-S, Руководство пользователя

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Manual
Issue 1.5
71
Configuration

Input
Select the input signal.

Update interval
If the spectrum is required in another update time than 200 ms, you can set here as a
default which time interval should be used.

Harmonics values
Select whether to measure relative or absolute harmonics/interharmonics.

Enable phase calculation
The corresponding phases for the harmonic values are also calculated.

Interference factor
Different calculation types can be selected for an interference factor.

Type:
TIF (acc. to IEEE Std. 519) : Describes the effects of harmonic voltages or cur-
rents on communication systems near transmission lines.
THFF: European version of the TIF defined by the CCITT (Comité Consultatif In-
ternational Téléphonique et Télégraphique), now ITU-T, in 1978.
Linear : General calculation formula with harmonic values without squaring.
Square : General calculation formula with squared harmonics
Psophometry up to 50th harmonic can be mapped using the type
square and the
normalization Hn .
Since ibaPDA supports only one weighting factor per harmonic, the factors have
to be multiplied first for psophometry and specified as total weighting factor per
harmonic.