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VEGA78
EN - 67
5.5.2.5. Measures
As an example, below are shown the screens relative to a
three phase 4-wire system
. Similar
consideration can be applied to any other selected system. In measure mode, the instrument
displays the saved values in TRMS as shown in the following figures:
In this page, the following symbols are used:
V1N
Neutral - Phase L1 Voltage
V2N
Neutral - Phase L2 Voltage
V3N
Neutral - Phase L3 Voltage
VNPE
Neutral - Ground 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
IN
Neutral Current
Fig. 103: Page 1/5 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. 98).
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