Continuous Recorder - Siemens SIMEAS R-PMU Manual

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7.3 Continuous Recorder

7.3 Continuous Recorder
The SIMEAS R-PMU features six continuous recorders: 5 Continuous Recorders (CR) and the
Event Recorder (ER). Continuous Recorders are used for data acquisition of the analog values
over longer periods of time, in order to be able to perform long-term analyses of the system
behaviour. The Event Recorder records the state changes of binary signals. Table 7-22 provides
an exact overview of the available recorders.
Table 7-22 Continuous recorder overview
Designation
Continuous Phasor Recorder
(CPR)
Continuous Frequency Recorder
(CFR)
Continuous RMS-value Recorder
(CRR)
Continuous Power Recorder
(CQR)
Continuous DC Recorder
(CDR)
Event Recorder
(ER)
The individual recorders use different methods of data acquisition:
The CPR records the values as instantaneous values at the end of the parameterized
recording interval.
The CFR, CRR, CQR and CDR recorders calculate the arithmetic mean of the cycle-based
measured values using the averaging interval (see figure 7-22).
Averaging interval
Signal
Figure 7-22 Calculating the arithmetic mean at the end of each averaging interval for CFR, CRR, CQR and CDR
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Recorded values
Phasors, frequencies
Frequencies
Arithmetic mean value
rms values (V, I)
Arithmetic mean value
Active and reactive powers
Arithmetic mean value
Process signals
Arithmetic mean value
Binary signals
Averaging interval
Arithmetic mean
value
Recording interval
parameterized)
Cycle time:
1 s to 10 min
Averaging time:
1 s to 10 min
Event-controlled
Averaging interval
Arithmetic mean
value
Digital Fault Recorder, SIMEAS R-PMU, Manual
E50417-H1076-C360-A5, Release 10.2012
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Arithmetic mean
value
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