8 General Specifications
8.1 Electrical Data
8.1.1 Power Rating
Grid conditions:
Supply voltage
380-480V
Mains voltage low / mains drop-out:
During low mains voltage or a mains drop-out, the Filter continues until the intermediate circuit voltage drops below the
minimum stop level, which corresponds typically 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 exceed the filter
highest rated voltage the filter continues to work but harmonic mitigation performance is reduced. Filter will not cut out until
main voltages exceed 580V.
Supply frequency
50/60Hz ±5%
Max. imbalance temporary between mains phases
where mitigation performance is kept high.
3.0% of rated supply voltage
Filter will mitigate at higher mains imbalance but harmonic mitigation
performance is reduced
Max 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:
% of filter current rating
5th
70%
7th
50%
11th
32%
13th
28%
17th
20%
19th
18%
23rd
16%
25th
14%
Total current of harmonics
90%
Reactive Current Compensation:
Cos phi
Controllable 1.0 to 0.5 lagging
Reactive current, % of filter current rating
100%
Cable lengths and cross sections:
Max grid cable length
Unlimited (determined by voltage drop)
Maximum cross section to control terminals, rigid wire
1.5mm
2
/16 AWG (2 x 0.75 mm
2
Maximum cross section to control terminals, flexible cable
1mm
2
/18 AWG
Maximum cross section to control terminals, cable with enclosed core
0.5mm
2
/20 AWG
Minimum cross section to control terminals
0.25mm
2
CT terminals specification:
Needed CT number
3 (one for each phase)
AAF's burden equals
2m
Ω
Secondary current rating
1A or 5A (hardware setup)
Accuracy
Class 0.5 or better
General Specifications
VLT Active Filter AAF 00x
MG.90.V2.02 - VLT® is a registered Danfoss trademark
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