Siemens SICAM 7KG85X - Measured Quantities of Energy Depending on Connection Types

Measured
Quantity
Circuit
1-Phase
System
3-Wire
Network
(Delta)
(Balanced
(1I)
3-Wire
Network
(Delta)
Unbalanced
(3I)
3-Wire
Network
(Delta)
Unbalanced
(2I)
4-Wire
Network
(Star)
Balanced
(1I)
4-Wire
Network
(Star)
Unbalanced
(3I)
Pc c – – – – – x
P a+b+c – x x x x ∑ P
ph
Reactive Power
Qa a x – – – – x
Qb b – – – – – x
Qc c – – – – – x
Q a+b+c – x x x x ∑ Q
ph
Apparent Power
Sa a x – – – – x
Sb b – – – – – x
Sc c – – – – – x
S a+b+c – x x x x ∑ S
ph
Reactive Power (Fundamental)
Q1a a x – – – x x
Q1b b – – – – – x
Q1c c – – – – – x
Q1 a+b+c – – – – x ∑ Q1
ph
Measured Quantities of Energy Depending on Connection Types
Table 2-16
Measured Quantities of Energy Depending on Connection Types in Power Systems (Intervals
(Cycle): 10/12 Cycles)
Measured
Quantity
Circuit
1-Phase
System
3-Wire
Network
(Delta)
(Balanced
(1I)
3-Wire
Network
(Delta)
Unbalanced
(3I)
3-Wire
Network
(Delta)
Unbalanced
(2I)
4-Wire
Network
(Star)
Balanced
(1I)
4-Wire
Network
(Star)
Unbalanced
(3I)
Active Energy/Export
WPa_exp a x – – – – x
WPb_exp b – – – – – x
WPc_exp c – – – – – x
WP_exp a+b+c – x x x x x
Active Energy/Import
WPa_imp a x – – – – x
WPb_imp b – – – – – x
WPc_imp c – – – – – x
WP_imp a+b+c – x x x x x
Reactive Energy/Inductive
WQa_ ind a x – – – – x
WQb_ ind b – – – – – x
WQc_ ind c – – – – – x
WQ_ ind a+b+c – x x x x x
Reactive Energy/Capacitive
WQa_ cap a x – – – – x
2.5.4.4
Basic Functions
2.5 AC Measurement
54 SICAM, SICAM P850/P855 7KG85X, Manual
E50417-H1040-C482-A9, Edition 03.2022