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4 Measurands and Characteristics
4.1 Measurands
33
SICAM MMU 7KG9663, Device Manual
E50417-H1040-C514-A3, Edition 01.2016
4.1.3.3
Measurands of Energy
Table 4-3
Measurands of Energy in Power Systems
Measurand
Circuit
1-phase
System
3-wire Network
(delta)
4-wire Network (star)
Balanced
(1I)
Unbalanced
(3I)
Unbalanced
(2I)
Balanced
(1I)
Unbalanced
(3I)
Active Energy - Supply
WPa_
Supply
a
x
x
WPb_
Supply
b
x
WPc_
Supply
c
x
WP_
Supply
a, b, c
x
x
x
x
x
Active Energy - Demand
WPa_
Demand
a
x
x
WPb_
Demand
b
x
WPc_
Demand
c
x
WP_
Demand
a, b, c
x
x
x
x
x
Reactive Energy - Inductive
WQa_
inductive
a
x
x
WQb_
inductive
b
x
WQc_
inductive
c
x
WQ_
inductive
a, b, c
x
x
x
x
x
Reactive Energy - Capacitive
WQa_
capacitive
a
x
x
SICAM-MMU_7KG9663_US.book Page 33 Monday, December 7, 2015 12:22 PM