Measured Values And Calculation Values - Siemens SIMEAS R-PMU Manual

6

6.2 Measured Values and Calculation Values

6.2 Measured Values and Calculation Values
Table 6-3 SIMEAS R-PMU measured values
Measured value
Calculation Value
Voltage
Current
Voltage (vectorial)
Current (vectorial)
Voltage (average)
Current (average)
Positive-sequence system
Negative-sequence system V
Zero-sequence system
Frequency
Phase angle
Active power
Reactive power
Binary signals
Process signals
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.
46
Four-phase connection
V , V , V , V
L1 L2 L3 N
V , V , V , V
L12 L23 L31 4
I , I , I , I
L1 L2 L3 N
V , V , V , V
L1 L2 L3 N
V , V , V , V
L12 L23 L31 4
I , I I , I
L1 L2, L3 N
V , V , V , V
L1 L2 L3 N
V , V , V , V
L12 L23 L31 4
I , I , I , I
L1 L2 L3 N
ϕ
V , I ,
1 1 1
ϕ
, I ,
2 2 2
ϕ
V , I ,
0 0 0
f
ϕ
P
Q
B
D
Three-phase
connection
V , V , V , V
L12 L23 L31 4
I , I , I , I
L1 L2 L3 4
V , V , V , V
L12 L23 L31 4
I , I , I , I
L1 L2 L3 4
V , V , V , V
L12 L23 L31 4
I , I , I , I
L1 L2 L3 4
ϕ
V , I ,
1 1 1
ϕ
V , I ,
2 2 2
–
f
ϕ
P
Q
B
D
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
Monophase
V , V , V , V
L1 L2 L3 L4
I , I , I , I
L1 L2 L3 L4
V , V , V , V
L1 L2 L3 L4
I , I , I , I
L1 L2 L3 L4
V , V , V , V
L1 L2 L3 L4
I , I , I , I
L1 L2 L3 L4
–
–
–
f
ϕ
P
Q
B
D