HT instruments VEGA78 - Manual (Page 93)

VEGA78
EN - 91
This screen (Fig. 153) displays, with graphic and numeric indications, the phase delays,
expressed in degrees [°], between current I1 and I2, I2 and I3, I3 and I1 and the vector
representing the neutral current.
Fig. 153: Current vector diagram in 4-wire system, 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 phase 1 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. 124).
This screen (Fig. 154) 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. 154: Phase 1 vector diagram in three-phase 4-wire 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 phase 2 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. 124).