4 Measurands and Recording
4.2 Measurands
49SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
4.2.3.3 Measurands of Power, Connection Types
Table 4-6 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-xxxx Vph/3
Reactive Power
Qa a x----x
Qb b -----x
Qc c -----x
Q a, b, c-xxxx Vph/3
Apparent Power
Sa a x----x
Sb b -----x
Sc c -----x
S a, b, c-xxxx Vph/3
Reactive Power (Fundamental)
Q1a a x - - - x x
Q1b b -----x
Q1c c -----x
Q1 a, b, c - - - - x x
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