IBA ibaPQU-S, Руководство пользователя

Страница: 74 / 127

Manual ibaPQU-S
74
Issue 1.5
Signal Meaning
Zero sequence unbalance Ratio of zero sequence component to positive
sequence component in percent
Negative sequence unbalance Ratio of negative sequence component to
positive sequence component in percent
Positive sequence component Percentage of symmetrical voltage vectors
(*)
in
rotation direction
Angle of the positive sequence component Phase shift of the positive sequence component
percentage of U1 compared to the reference
signal
Negative sequence component Percentage of symmetrical voltage vectors,
against the rotation direction
Angle of the negative sequence component Phase shift of the negative sequence
component percentage of U1 compared to the
reference signal
Zero sequence component Percentage of voltage vectors all showing in the
same direction
Angle of the zero sequence component Direction of the zero sequence component of
the voltage vectors
(*)
The voltage vector is formed from the RMS value of the voltage (as vector length) and the
current phase (as vector angle).

Name
The names are set by default but can be edited. To allow an unambiguous identification,
they contain the input channel and the characteristic value. You can additionally assign
two comments by clicking the
icon in the signal name field.

Unit
Display of the relevant unit.

Active
Here you can enable or disable the signal.
Display in the phasor diagram
The voltage unbalance can be visualized using the phasor diagram.
Click the button on the ibaPDA toolbar to display the phasor diagram.
Hold the mouse button down and drag the Unbalance module from the signal tree on the
left onto the display. Switch the display to unbalance.