HT instruments PQA824 - Manual (Page 103)

PQA400 - PQA823 - PQA824
EN - 102
5.5.2.4. Vectors
This screen (Fig. 167) displays, with graphic and numeric indications, the phase delays
expressed in degrees [°] between:
 Voltage V1 and V2, V2 and V3, V3 and V1.
 Voltage V1 and current I1.
 Voltage V2 and current I2.
 Voltage V3 and current I3.
The latter allow finding out the inductive or capacitive nature of the electrical installation. In
detail:
 Positive angle: Inductive load.
 Negative angle: Capacitive load.
The N-PE voltage (blue) and Neutral current (pale blue - not for PQA400) vectors are also
represented.
Fig. 167: Total 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 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).