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Messdaten - Messverfahren
Kollektive Scheinleistung n. DIN40110:
S
=
U
⋅
Σ
Σ
1
U
=
⋅
Σ
2
4-Leiter-Netz:
I
=
I
Σ
1
3-Leiter-Netz, I1 + I2 + I3 ≠ 0:
1
U
=
⋅
Σ
2
I
I
=
Σ
1
Geometrische Grundschwingungs-Scheinleistung:
S
=
3
⋅
G
I
Σ
U
2
+
U
2
+
U
2
12
rms
23
rms
31
rms
2
2
2
2
+
I
+
I
+
I
rms
rms
rms
Nrms
2
3
U
2
+
U
2
+
U
rms
rms
12
23
31
2
I
2
I
2
I
2
+
+
+
rms
2
rms
3
rms
Erms
*
[
U
⋅
I
+
U
1
_
PS
1
_
PS
1
_
NS
+
U
2
+
U
2
+
1
Nrms
2
Nrms
2
+
U
2
+
U
2
rms
Erms
Erms
1
2
*
*
⋅
I
+
U
⋅
I
1
_
NS
1
_
1
_
ZS
KBR multimess D9-PQ
U
2
3
Nrms
+
U
2
Erms
3
]
ZS
87
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