Measurands Depending On The Connection Type - Siemens SICAM MMU 7KG9663 Device Manual

4 Measurands and Characteristics
4.1 Measurands
4.1.3

Measurands Depending on the Connection Type

4.1.3.1 Operational Measurands
Table 4-1 Measurands for the Operation in Power Systems
Measurand Circuit
Va a-N
Vb b-N
Vc c-N
Vab a-b
Vbc b-c
Vca c-a
V a, b, c
N
Vavg a, b, c
Vunbal a-b, b-c,
c-a
HVa a-N
HVb b-N
HVc c-N
Ia a
Ib b
Ic c
I a, b, c
N
Iavg a, b, c
Iunbal a, b, c
HIa a
30
1-phase
System
Balanced
(1I)
AC Voltage
x
x
x
x
Σ Vph/3
x
x
AC Current
x x
x x
3-wire Network
(delta)
Unbalanced Unbalanced
(3I) (2I)
x x
x x
x x
Σ Vph/3 Σ Vph/3
x x
x x
x x
x x
x
x x
x x
x x
E50417-H1040-C514-A3, Edition 01.2016
4-wire Network
(star)
Balanced Unbalanced
(1I) (3I)
x x
x
x
x
x
x
x
Σ Vph/3
a-N
x
x x
x
x
x x
x
x
x
Σ Iph/3
x
x x
SICAM MMU 7KG9663, Device Manual