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4 Measurands and Recording
4.2 Measurands
45
SENTRON PAC5100/5200, 7KM5212/5412, Device Manual
E50417-H1040-C568-A1, Edition 03.2015
4.2.3.3 Measurands of Power, Connection Types
Table 4-5
Measurands of Power, Connection Types in Power Systems
Measurand
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)
Active Power
Pa
a
x
-
-
-
-
x
Pb
b
-
-
-
-
-
x
Pc
c
-
-
-
-
-
x
P
a, b, c
-
x
x
x
x
Vph/3
Reactive Power
Qa
a
x
-
-
-
-
x
Qb
b
-
-
-
-
-
x
Qc
c
-
-
-
-
-
x
Q
a, b, c
-
x
x
x
x
Vph/3
Apparent Power
Sa
a
x
-
-
-
-
x
Sb
b
-
-
-
-
-
x
Sc
c
-
-
-
-
-
x
S
a, b, c
-
x
x
x
x
Vph/3
Reactive Power (Fundamental)
Q1a
a
x
-
-
-
x
x
Q1b
b
-
-
-
-
-
x
Q1c
c
-
-
-
-
-
x
Q1
a, b, c
-
-
-
-
x
x
Содержание SENTRON PAC5100
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