9 Specifications9.1 Power RatingGrid conditionsSupply voltage 380–480 V, +5%/-10%Mains voltage low/mains drop-out:During low mains voltage or a mains drop-out, the filter continues until the DC-link voltage drops below the minimum stoplevel, which corresponds to 15% below the filter lowest rated supply voltage. Full compensation cannot be expected at mainsvoltage lower than 10% below the filter lowest rated supply voltage. If mains voltage exceeds the filter highest rated voltage, thefilter continues to work but harmonic mitigation performance is reduced. The filter does not cut out until main voltages exceed580 V.Supply frequency 50/60 Hz ±5%Maximum imbalance temporary between mainsphases where mitigation performance is kept high.3.0% of rated supply voltageFilter mitigates at higher mains imbalance but harmonic mitigationperformance is reducedMaximum THDv pre-distortion10% with kept mitigation performanceReduced performance for higher pre-distortion levelsHarmonic mitigation performanceTHiDBest performance <4%Depending on filter vs. distortion ratio.Individual harmonic mitigation ability: Current maximum RMS [% of rated RMS current]2nd 10%4th 10%5th 70%7th 50%8th 10%10th 5%11th 32%13th 28%14th 4%16th 4%17th 20%19th 18%20th 3%22nd 3%23rd 16%25th 14%Total current of harmonics 90%The filter is performance tested to the 40th orderReactive current compensationCos phi Lagging and leading, depending on parameter settingsCos phi Controllable 1.0 to 0.5 laggingReactive current, % of filter current rating 100%Cable lengths and cross-sectionsMaximum grid cable length (direct internal connection) Unlimited (determined by voltage drop)Maximum cross-section to control terminals, rigid wire 1.5 mm2/16 AWG (2 x 0.75 mm2)Maximum cross-section to control terminals, flexible cable 1 mm2/18 AWGMaximum cross-section to control terminals, cable with enclosed core 0.5 mm2/20 AWGMinimum cross-section to control terminals 0.25 mm2Specifications Operating InstructionsMG90V302 Danfoss A/S © 09/2014 All rights reserved. 819 9