HT instruments VEGA78 User Manual
Page 99
VEGA78
EN - 97
I
n this page, the following symbols are used:
V3N
Phase L3 - Neutral Voltage
I3
Phase L3 Current
Patt3
Phase L3 Active Power
Preatt3
Phase L3 Reactive Power
Papp3
Phase L3 apparent Power
Pf3
Phase L3 Power Factor
CosPhi3
Cosine of the Phase delay between the Phase L3
Voltage and Current fundamentals
CosPhi represents the theoretical limit value which
can be reached by the Power factor if all harmonics
are eliminated from the electrical system. For
dimensioning a power factor correction system,
reference is usually made to the CosPhi parameter
value.
Fig. 164: Page 5/5 of numeric values for 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.
The ESC key (or the smart icon on the display) to exit the function and go back to the
“Recording analysis” page (Fig. 124).
In this page, the following symbols are used:
V1PE
Phase L1 - PE Voltage
V2PE
Phase L2 - PE Voltage
V3PE
Phase L3 - PE Voltage
V12
Phase L1 - Phase L2 Voltage
V23
Phase L2 - Phase L3 Voltage
V31
Phase L3 - Phase L1 Voltage
Inv%
% value of the Negative sequence unbalance
Omo%
% value of the Zero sequence unbalance
SEQ
Phase sequence:
”123” => Correct
”132” => Not correct
”023” => No Voltage on B1
”103” => No Voltage on B2
”120” => No Voltage on B3
”100” => No Voltage on B2 and B3
”020” => No Voltage on B1 and B3
”003” => No Voltage on B1 and B2
Hz
Frequency.
I1
Current on Phase L1
I2
Current on Phase L2
I3
Current on Phase L3
Fig. 165: Page 1/5 of numeric values for three-phase 3-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.
The ESC key (or the smart icon on the display) to exit the function and go back to the
“Recording analysis” page (Fig. 124).