PQA400 - PQA823 - PQA824
EN - 103
This screen (Fig. 168) displays, with graphic and numeric indications, the phase delays
expressed in degrees [°] between:
Voltage V12 and V23, V23 and V31, V31 and V12.
Voltage V12 and current I1.
Voltage V23 and current I2.
Voltage V31 and current I3.
To correctly evaluate this vector diagram, it must be remembered that, under purely
resistive loads, the angle between the Delta voltage and the phase current is +30°.
Fig. 168: Total vector diagram in three-phase 3-wire system or Aron system
The following keys are active on this page:
The
F1 key (or the PAG item on the display) advances to the following page of
saved values relative to the voltage vector diagram.
The
ESC key (or the smart icon on the display) to exit the function and go back
to the “Recording analysis” page (Fig. 143).
This screen (Fig. 169) displays, with graphic and numeric indications, the phase delays,
expressed in degrees [°], between voltage V1 and current I1, so that the inductive or
capacitive nature of the electrical installation may be found out. In detail:
Positive angle: Inductive load.
Negative angle: Capacitive load.
Fig. 169: Vector diagram in single-phase system
The following keys are active on this page:
The
ESC key (or the smart icon on the display) to exit the function and go back
to the “Recording analysis” page (Fig. 143).
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