Danfoss VLT Low Harmonic Drive Fact sheet

Fact Sheet

VLT® Low Harmonic Drive continuous mitigation with exceptional eﬃciency

The VLT® Low Harmonic Drive continuously regulates harmonic mitigation according to the load and grid conditions without affecting the connected motor.

The total harmonic current distortion is reduced to less than 3% on grids with balanced mains and minimum pre-distortion and to less than 5% on grids with high harmonic distortion and 2% phase imbalance. As individual harmonics also fulfil toughest harmonic requirements, the VLT® Low Harmonic Drive meets all present harmonic standards and recommendations.

Unique features such as sleep mode and back channel cooling offers unmatched energy efficiency for Low Harmonic Drives.

The VLT® Low Harmonic Drive requires the same set-up and installation as a standard VLT® drive and out of the box it ensures optimum harmonic performance.

The VLT® Low Harmonic Drive features the same modular construction as our standard high power drives and shares similar features: Built-in RFI filters, coated PCB and user-friendly programming.

total harmonic current distortion reduced to

< 3%

on grids with balanced mains

Enclosure

 IP 21/NEMA 1  IP 54/NEMA 12

Voltage range

 380 – 480 V AC 50 – 60 Hz

Power range

 High overload:

132-630 kW 200-900 HP

 Normal overload:

160-710 kW 250-1000 HP

Feature Beneﬁt

Reliable Maximum uptime

No increased winding stress on motor

100% factory tested Coated PCBs

Innovative cooling concept Prolonged lifetime of electronics

User-friendly Save commissioning and operation costs

No extra wiring and set-up needed Easy commissioning and low initial costs

Modular design Easy serviceability

Full readout of grid conditions Reduces needed harmonic testing

Energy Saving Lower operation costs

High efficiency Sleep mode and progressive switching frequency

Independent of grid and load changes

Longer motor lifetime Less initial cost (no output filter needed)

Low failure rate

Low running expenses

Increased transformer efficiency Reduced cable losses

www.danfossdrives.com

Options:

Speciﬁcations:

The following options are available:

 RFI filters  Disconnect  Fuses  Mains shielding  Feedback and I/O options  Fieldbus options  dV/dt filters  Sine wave filters

PC software:

VLT® MCT 10 Setup Software

VLT® MCT 10 offers advanced programming functionality for all Danfoss drive products, greatly reducing programming and set-up time.

VLT® MCT 10 Basic (available free of charge from www.danfossdrives.com) allows access to a finite number of drives with limited functionality.

The advanced edition, offering a higher level of functionality, is available from your Danfoss sales partner.

THiD* at: 40% load 70% load 100% load

Efficiency* at: 40% load 70% load 100% load

True power factor* at: 40% load 70% load 100% load

Ambient temperature 40˚C without derating Cooling Backchannel air cooling * Measured at balanced grid without pre-distortion

Norms and recommendations Compliance

IEEE519 Always IEC61000-3-2 (up to 16 A) Out of scope IEC61000-3-12 (between 16 and 75 A) Out of scope IEC61000-3-4 (above 75 A) Always

<5,5% <3,5% <3%

>93% >95% >96%

>98% >98% >98%

VLT® MCT 31 Harmonics Calculation Software

With VLT® MCT 31, you can determine whether harmonics will be an issue in your installation when drives are added.

VLT® MCT 31 estimates the benefits of adding various harmonic mitigation solutions from the Danfoss product portfolio and calculates system harmonic distortion. Furthermore, the software provides quick indication of whether the installation complies with the most recognizsd harmonic norms and recommendations.

From www.danfossdrives.com you can down-load the free tool VLT® Harmonic Calculation MCT 31 – the most up-to-date version of the calculation software.

F18

400 VAC (380 – 460 VAC)

Normal Overload High Overload Power Current Power Current H x W x D

kW HP [A] kW HP [A] IP 21 kg lbs

160 250 315 132 200 260

200 300 395 160 250 315 250 350 480 200 300 395 315 450 600 250 350 480 355 500 658 315 450 600 400 625 745 355 500 658 450 700 800 400 625 695 500 780 880 450 700 800 560 875 990 500 780 880 630 985 1120 560 875 990 710 1100 1260 630 985 1120

Frame

D1N

D2N

F18

Dimensions

1740 x 915 x 380 mm

69 x 36 x 15 inches

1740 x 1020 x 380 mm

69 x 40 x 15 inches

2000 x 1200 x 500 mm

79 x 47 x 19 inches

2277 x 2800 x 600 mm

90 x 110 x 24 inches

Weight

390

676

1899 4187

860

1491