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)
WQb_ cap b – – – – – x
WQc_ cap c – – – – – x
WQ_ cap a+b+c – x x x x x
Apparent Energy
WSa a x – – – – x
WSb b – – – – – x
WSc c – – – – – x
WS a+b+c – x x x x x
Frozen 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
Frozen 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
Frozen 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
Frozen Reactive Energy/Capacitive
WQa_ cap a x – – – – x
WQb_ cap b – – – – – x
WQc_ cap c – – – – – x
WQ_ cap a+b+c – x x x x x
Frozen Apparent Energy
WSa a x – – – – x
WSb b – – – – – x
WSc c – – – – – x
WS a+b+c – x x x x x
NOTE
All measurements with intervals: 10 or 12 cycles
Basic Functions
2.5 AC Measurement
SICAM, SICAM P850/P855 7KG85X, Manual 55
E50417-H1040-C482-A9, Edition 03.2022