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4 Measurands and Recording
4.2 Measurands
41
SENTRON PAC5100/5200, 7KM5212/5412, Device Manual
E50417-H1040-C568-A1, Edition 03.2015
4.2.3
Measurands Depending on the Connection Type
4.2.3.1 Operational Measurands and Connection Types
Table 4-3
Operational Measurands, Connection Types in Power Systems
Measurand
(x = 1 to 40)
Circuit
1-phase
System
3-wire Network
(Delta)
4-wire Network
(Star)
Balanced
(1I)
Unbal-
anced (3I)
Unbal-
anced (2I)
Balanced
(1I)
Unbal-
anced (3I)
Alternating Voltage
Va
a-N
x
-
-
-
x
x
Vb
b-N
-
-
-
-
-
x
Vc
c-N
-
-
-
-
-
x
Vab
a-b
-
x
x
x
-
x
Vbc
b-c
-
x
x
x
-
x
Vca
c-a
-
x
x
x
-
x
V
N
a, b, c
-
-
-
-
-
x
Vavg
a-N,
b-N,
c-N
-
-
-
-
-
Vph/3
Vavg
a-b,
b-c,
c-a
-
Vph/3
Vph/3
Vph/3
-
U
2
a-b,
b-c,
c-a
-
x
x
x
-
x
Alternating Current
Ia
a
x
x
x
x
x
x
Ib
b
-
-
x
x
-
x
Ic
c
-
-
x
x
-
x
I
N
a, b, c
-
-
-
-
-
x
Iavg
a, b, c
-
-
x
x
-
Iph/3
Iunbal
a, b, c
-
-
x
x
-
x
Active Power Factor
cos
(a)
a
x
-
-
-
-
x
Summary of Contents for SENTRON PAC5100
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