The EL3413 EtherCAT power measurement terminal is a further development of the EL3403. With up to 690 V AC the voltage inputs are optimised for direct monitoring of high-performance generators, as used in the wind power industry, for example. No upstream voltage transformer is required. The current inputs are galvanically isolated so that the terminal can be used in all common grounded current transformer configurations such as 2- or 3-transformer configurations with star or delta connection. The EL3413 can deal with simple network analysis up to the 21st harmonic analysis. Like all measured terminal data, the harmonic content can be read via the process data.
Technical data | EL3413 |
---|---|
Number of inputs | 3 x current, 3 x voltage |
Technology | 3-phase power measurement for alternating voltages |
Distributed clocks | – |
Conversion time | mains-synchronous |
Measured values | current, voltage, effective power, reactive power, apparent power, energy, cos φ, frequency, harmonic |
Measuring voltage | max. 690 V AC 3~ (ULX-N: max. 400 V AC) |
Measuring current | max. 5 A, potential-free, via measuring transformers x A/5 A |
Resolution | 1 μA, 0.1 mV, 10 mW |
Measuring error | 0.5 % relative to full scale value for measuring values (U/I), 1 % calculated value |
Current consumption power contacts | – |
Current consumption E-bus | typ. 120 mA |
Special features | galvanically isolated current inputs, harmonic analysis, single-phase operation also possible |
Weight | approx. 100 g |
Operating/storage temperature | 0…+55 °C/-25…+85 °C |
Relative humidity | 95 %, no condensation |
Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27/29 |
EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
Protect. class/installation pos. | IP 20/variable |
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