9 Specifications
9.1 Power Rating
Grid conditions
Supply 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 stop
level, which corresponds to 15% below the filter lowest rated supply voltage. Full compensation cannot be expected at mains
voltage lower than 10% below the filter lowest rated supply voltage. If mains voltage exceeds the filter highest rated voltage, the
filter continues to work but harmonic mitigation performance is reduced. The filter does not cut out until main voltages exceed
580 V.
Supply frequency 50/60 Hz ±5%
Maximum imbalance temporary between mains
phases where mitigation performance is kept high.
3.0% of rated supply voltage
Filter mitigates at higher mains imbalance but harmonic mitigation
performance is reduced
Maximum THDv pre-distortion
10% with kept mitigation performance
Reduced performance for higher pre-distortion levels
Harmonic mitigation performance
THiD
Best 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 order
Reactive current compensation
Cos phi Lagging and leading, depending on parameter settings
Cos phi Controllable 1.0 to 0.5 lagging
Reactive current, % of filter current rating 100%
Cable lengths and cross-sections
Maximum grid cable length (direct internal connection) Unlimited (determined by voltage drop)
Maximum cross-section to control terminals, rigid wire 1.5 mm
2
/16 AWG (2 x 0.75 mm
2
)
Maximum cross-section to control terminals, flexible cable 1 mm
2
/18 AWG
Maximum cross-section to control terminals, cable with enclosed core 0.5 mm
2
/20 AWG
Minimum cross-section to control terminals 0.25 mm
2
Specifications Operating Instructions
MG90V302 Danfoss A/S © 09/2014 All rights reserved. 81
9 9
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