MI 2883 Energy Master
Theory and internal operation
146
GENERATED ACTIVE POWER
CONSUMED REACTIVE POWER
TYPE
Capacitive
CONSUMED ACTIVE POWER
CONSUMED REACTIVE POWER
TYPE
Inductive
GENERATED ACTIVE POWER
GENERATED REACTIVE POWER
TYPE
Inductive
CONSUMED ACTIVE POWER
GENERATED REACTIVE POWER
TYPE
Capacitive
90'
270'
0'
180'
P
Q
N
PF
DPF
P
·t
Q
·t
P+
Qi+
Ni+
PFi+
DPFi+
Ep+
Eq+
In
s
ta
n
ta
n
e
o
u
s
v
a
lu
e
s
R
e
c
o
rd
e
d
V
a
lu
e
s
→
→
→
→
→
→
→
P
-Q
-N
PF
DPF
P
·t
-Q
·t
P+
Qc-
Nc-
PFc+
DPFc+
Ep+
Eq-
In
s
ta
n
ta
n
e
o
u
s
v
a
lu
e
s
R
e
c
o
rd
e
d
V
a
lu
e
s
→
→
→
→
→
→
→
-P
Q
N
-PF
-DPF
-P
·t
Q
·t
P-
Qc+
Nc+
PFc-
DPFc-
Ep-
Eq+
In
s
ta
n
ta
n
e
o
u
s
v
a
lu
e
s
R
e
c
o
rd
e
d
V
a
lu
e
s
→
→
→
→
→
→
→
-P
-Q
-N
-PF
-DPF
-P
·t
-Q
·t
P-
Qi-
Ni-
PFi-
DPFi-
Ep-
Eq-
In
s
ta
n
ta
n
e
o
u
s
v
a
lu
e
s
R
e
c
o
rd
e
d
V
a
lu
e
s
→
→
→
→
→
→
→
C
O
N
S
U
M
E
D
A
C
T
IV
E
P
O
W
E
R
G
E
N
E
R
A
T
E
D
A
C
T
IV
E
P
O
W
E
R
GENERATED REACTIVE
POWER
CONSUMED REACTIVE
POWER
Figure 5.15: Consumed/generated and inductive/capacitive phase/polarity diagram
5.1.16
Flagged data
Standard compliance: IEC 61000-4-30 Class A (Section 4.7)
During a dip, swell, or interruption, the measurement algorithm for other parameters (for
example, frequency measurement) might produce an unreliable value. The flagging
concept avoids counting a single event more than once in different parameters (for
example, counting a single dip as both a dip and a voltage variation), and indicates that
an aggregated value might be unreliable.
Flagging is only triggered by dips, swells, and interruptions. The detection of dips and
swells is dependent on the threshold selected by the user, and this selection will
influence which data are "flagged".