6
6.2 Measured Values and Calculation Values
46 Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
6.2 Measured Values and Calculation Values
Table 6-3 SIMEAS R-PMU measured values
Measured value
Calculation Value
Four-phase connection Three-phase
connection
Monophase
Voltage V
L1
, V
L2
, V
L3
, V
N
V
L12
,
V
L23
,
V
L31
,
V
4
V
L12
, V
L23
, V
L31
, V
4
V
L1
, V
L2
, V
L3
, V
L4
Current I
L1
, I
L2
, I
L3
, I
N
I
L1
, I
L2
, I
L3
,
I
4
I
L1
, I
L2
, I
L3
, I
L4
Voltage (vectorial) V
L1
, V
L2
, V
L3
, V
N
V
L12
, V
L23
, V
L31
, V
4
V
L12
, V
L23
, V
L31
,
V
4
V
L1
, V
L2
, V
L3
, V
L4
Current (vectorial) I
L1
, I
L2,
I
L3
, I
N
I
L1
, I
L2
, I
L3
, I
4
I
L1
, I
L2
, I
L3
, I
L4
Voltage (average) V
L1
, V
L2
, V
L3
, V
N
V
L12
, V
L23
, V
L31
, V
4
V
L12
, V
L23
, V
L31
,
V
4
V
L1
, V
L2
, V
L3
, V
L4
Current (average) I
L1
, I
L2
, I
L3
, I
N
I
L1
, I
L2
, I
L3
, I
4
I
L1
, I
L2
, I
L3
, I
L4
Positive-sequence system
V
1
, I
1
, ϕ
1
V
1
, I
1
,
ϕ
1
–
Negative-sequence system
V
2
, I
2
,
ϕ
2
V
2
, I
2
,
ϕ
2
–
Zero-sequence system
V
0
, I
0
,
ϕ
0
––
Frequency f f f
Phase angle
ϕϕϕ
Active power P P P
Reactive power Q Q Q
Binary signals B B B
Process signals D D D
Note
With a three-phase connection, the powers are measured using the two-wattmeter method (Aron
circuit).
Note
DDAUs record process signals. The values to be measured must be adjusted to the signal levels
of the signal to be measured.
Example: Process signals (e. g., -50 °C to +100 °C) can be assigned to a physical input range
(e. g., DC -10 V to DC +10 V). It is also possible to define the neutral point.
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