4 Measurands and Recording
4.2 Measurands
45SENTRON 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-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---xx
Q1b b -----x
Q1c c -----x
Q1a, b, c----xx
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