HT instruments VEGA78 User Manual

Page 99

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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).


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