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Content Displaying Power Meters
Overview
The displaying power meters for heavy current variables are completely programmable, universal measuring units. They provide numerous measured values and permit the complete acquisition of the state of a heavy
current system. As is the case in multitransducers, a sampling measuring principle is used (see overview of multifunctional transducers). The table shown below is a selection guide for the right instrument.
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Display unit + optional extension module |
„All in one“ |
| Measuring system |
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| Voltage, current |
±0.5 % |
±0.2 % |
±0.25 % |
±0.1 % |
| Apparent, active, reactive power |
±1 % |
±0.5 % |
±0.5 % |
±0.2 % |
| Active/reactive energy (IEC 62 053) |
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Class 0.5S / 2 |
| Measuring interval |
200 ms |
200 ms |
200 ms |
2…1024 periods |
| Uninterrupted measurement |
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✓ |
| Nominal voltage (max.) L-L |
500 (600) V |
500 (600) V |
500 (550) V |
690 (832) V |
| Nominal current (max.) |
1 or 5 A (6 A) |
1 or 5 A (6 A) |
1 and 5 A (6 A) |
1 and 5 A (7.5 A) |
| Measured variables |
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| Basic variables of the system 1) |
✓ |
✓ |
✓ |
✓ |
| Mean values |
1…60 min |
1…60 min |
1…60 min |
1…60 min |
| Min/max values with time reference |
with EMMOD…203 |
with EMMOD…203 |
✓ |
✓ |
| Harmonic analysis |
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2. to 15. |
2. to 15. |
2. to 50. |
1) All phase and system variables of voltage, current, active, reactive and apparent power, power factor as well as frequency
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