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NVA100X-D - Manual - 02 - 2016
5 M E A S U R E S , L O G I C S T A T E S A N D C O U N T E R S
Measures
Measure
Parameter
Symbol
Direct
Lock frequency
f
l
U
12
Phase-to-phase frequency
f
U12
U
2 3
Phase-to-phase frequency
f
U2 3
U
31
Phase-to-phase frequency
f
U31
RMS value of fundamental component for phase currents side H
I
L1H
,
I
L 2H
,
I
L 3H
RMS value of fundamental component for phase currents side L
I
L1L
,
I
L 2L
,
I
L 3L
RMS value for phase currents side L
I
L1L...3Lrms
RMS value of fundamental component for phase voltages
U
L1
,
U
L 2
,
U
L 3
RMS value of fundamental component for residual current side 1
I
E1
RMS value of fundamental component for residual current side 2
I
E2
RMS value of fundamental component for residual voltage
U
E
Calculated
Compensated currents side H
I
L1cH
,
I
L 2cH
,
I
L 3cH
Compensated currents side L
I
L1cL
,
I
L 2cL
,
I
L 3cL
Stabilization currents
I
SL1
,
I
SL 2
,
I
SL 3
Differential currents
I
DL1
,
I
DL 2
,
I
DL 3
Second harmonic of differential currents
I
DL1-2nd
,
I
DL2-2nd
,
I
DL3-2nd
Fifth harmonic of differential currents
I
DL1-5th
,
I
DL2-5th
,
I
DL3-5th
Thermal image
DTheta
Phase-to-phase voltages
U
12
,
U
2 3
,
U
31
Calculated residual voltage
U
EC
Calculated residual current side H and side L
I
ECH
,
I
ECL
Maximum current between
I
L1L
-
I
L2L
-
I
L3L
I
LmaxL
Minimum current between
I
L1L
-
I
L2L
-
I
L3L
I
LminL
Average current between
I
L1L
-
I
L2L
-
I
L3L
I
LL
RMS maximum current between
I
L1Lrms
-
I
L2Lrms
-
I
L3Lrms
I
LmaxL-rms
RMS minimum current between
I
L1Lrms
-
I
L2Lrms
-
I
L3Lrms
I
LminL-rms
RMS average current between
I
L1Lrms
-
I
L2Lrms
-
I
L3Lrms
I
LL-rms
Maximum voltage between
U
L1
-
U
L2
-
U
L3
U
Lmax
Minimum voltage between
U
L1
-
U
L2
-
U
L3
U
Lmin
Average voltage between
U
L1
-
U
L2
-
U
L3
U
L
Maximum voltage between
U
12
-
U
23
-
U
31
U
max
Minimum voltage between
U
12
-
U
23
-
U
31
U
min
Average voltage between
U
12
-
U
23
-
U
31
U
Displacement
Displacement angle of
I
L1
respect to
U
L1
Phi
L1
Displacement angle of
I
L2
respect to
U
L2
Phi
L2
Displacement angle of
I
L3
respect to
U
L3
Phi
L3
Displacement angle of
U
E
respect to
I
E
Phi
E
Displacement angle of
U
EC
respect to
I
E
Phi
EC
Displacement angle of
U
E
respect to
I
EC
Phi
E-IEC(L/H)
Displacement angle of
U
EC
respect to
I
EC
Phi
EC-IEC(L/H)
Sequence
Positive sequence current side L
I
1
Negative sequence current side L
I
2
Negative sequence current/positive sequence current ratio side L
I
2
/
I
1
Positive sequence voltage
U
1
Negative sequence voltage
U
2
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