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[Studies in Computational Intelligence 481] Artur Babiarz, Robert Bieda, Karol Jędrasiak, Aleksander Nawrat (auth.), Aleksander Nawrat, Zygmunt Kuś (eds.) - Vision Based Systemsfor UAV Applications (2013, Sprin

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Comparative Analysis of Power Loses <strong>in</strong> Selected Measurement Devices 287<br />

Table 4. (cont<strong>in</strong>ued)<br />

L1 -0.57 4.39 4.42<br />

L3PLC 12537801 PLC:IEC61334-5-1 L2 -0.52 4.33 4.36<br />

L3 -0.61 4.26 4.30<br />

L1 -0.54 4.35 4.38<br />

L3PLC 12585090 PLC:IEC61334-5-1 L2 -0.46 4.11 4.14<br />

L3 -0.56 4.08 4.12<br />

L1 0.77 -0.46 0.90<br />

P3 71101674 -<br />

L2 0.76 -0.45 0.88<br />

L3 0.77 -0.46 0.90<br />

L1 0.82 -0.50 0.96<br />

P3 71101678 -<br />

L2 0.81 -0.50 0.95<br />

L3 0.77 -0.45 0.90<br />

L1 0.77 -0.45 0.90<br />

P3 71105222 -<br />

L2 0.76 -0.46 0.89<br />

L3 0.79 -0.51 0.94<br />

(...) - power loss values for a meter with a disconnected GSM/GPRS modem.<br />

4 Inductive Meter Measurements<br />

Measurements of energy losses <strong>in</strong> 1-phase <strong>in</strong>ductive meters were conducted <strong>in</strong> a<br />

circuit whose scheme is shown <strong>in</strong> fig. 2. In tables 5 and 6 compared are the typical<br />

and maximum power loss values for 1-phase <strong>in</strong>ductive meters.<br />

Measurements of energy losses <strong>in</strong> 3-phase <strong>in</strong>ductive meters were conducted <strong>in</strong><br />

a circuit whose scheme is shown <strong>in</strong> fig. 3. In tables 7 and 8 compared are the typical<br />

and maximum power loss values obta<strong>in</strong>ed for 3-phase <strong>in</strong>ductive meters.<br />

Inductive meters were exam<strong>in</strong>ed <strong>in</strong> order to compare power loss results obta<strong>in</strong>ed<br />

for meters with results characteristic for electronic meters used <strong>in</strong> smart<br />

grid systems. Such comparison is expected to answer the question whether or not<br />

electronic meters, <strong>in</strong> particular meters with communication modems, are characterized<br />

by greater energy demand required for their operation.<br />

4.1 Results from 1-Phase Inductive Meter Measurements<br />

Figure 5 shows fragments of measurement series registered to determ<strong>in</strong>e the typical<br />

and maximum power loss values for 1-phase <strong>in</strong>ductive meter. Not unlike the<br />

electronic meters, the number of all samples <strong>in</strong> the measurement series registered<br />

to determ<strong>in</strong>e the typical and maximum power loss values were significantly greater<br />

than what is presented <strong>in</strong> figure 5.

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