Siemens SIPROTEC 5 - Page 415

Measured Values Primary Secon-
dary
% Referenced to
S Apparent power
(total power)
MVA VA Apparent power of the primary values
√3 · V
rated
· I
rated
Cos φ Active power factor (abs) (abs) 100 % corresponds to cos φ = 1
P
A
, P
B
, P
C
Phase-related active power MW W Active power of the phase
V
rated phsx
· I
rated phsx
Q
A
, Q
B
, Q
C
Phase-related reactive power Mvar var Reactive power of the phase
V
rated phsx
· I
rated phsx
S
A
, S
B
, S
C
Phase-related apparent
power
MVA VA Apparent power of the phase
V
rated phsx
· I
rated phsx
Wp+, Wp- Output and consumed active
energy
See 9.3 Operational Meas-
ured Values
MWh Wh
Wq+, Wq- Output and consumed reac-
tive energy
Mvarh varh
i
i
NOTE
With the P, Q sign parameter in the function block General of the respective function group, the sign of
the following measured values can be inverted:
•
Active power (total): P total
•
Active power (phase-related): P
A
, P
B
, P
C
•
Reactive power (total): Q total
•
Reactive power (phase-related): Q
A
, Q
B
and Q
C
Measured and Energy Values
9.3 Operational Measured Values
SIPROTEC 5, Fault Recorder, Manual 415
C53000-G5040-C018-5, Edition 11.2017