Danfoss VLT 12-pulse drive Fact sheet
VLT® 12-pulse drive
Robust and cost effective harmonic solution for the higher power range. The Danfoss VLT® 12-pulse drive offers reduced harmonics for demanding industry applications above 250 kW.
The VLT® 12-pulse is a high efficiency variable frequency converter which is built with the same modular design as the popular 6-pulse VLT® drives. It is offered with similar drive options and accessories and can be configured according to customer need.
Together with the needed 30°-phase shifting transformer the solution provides durability and reliability at a low cost.
Under ideal grid conditions the solution eliminates the 5th, 7th, 17th and 19th harmonics and results in a THiD of around 12% at full load.
The needed transformer makes this solution ideal for applications where stepping down from medium voltage is required or where isolation from the grid is needed.
The Danfoss VLT® 12-pulse drive provides harmonic reduction without adding capacitive or inductive components which often require network analysis to avoid potential system resonance problems.
Power Range:
n 250 kW – 1.4 MW
Voltage Range:
n 380 – 690 V
Enclosure:
nIP 21/NEMA Type 1
nIP 54/NEMA Type 12
Optimised
for:
–VLT® HVAC Drive FC 102
–VLT® AQUA Drive FC 202
–VLT® AutomationDrive FC 302
Feature |
Benefit |
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Reliable |
Maximum uptime |
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Maintenance free |
No running expenses |
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Durability |
Long lifetime |
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Coated PCBs |
Environmental robustness |
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100% factory tested |
Low failure rate |
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Backchannel cooling |
Prolonged lifetime of electronics |
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Design |
Easy operation and user-friendly set-up |
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Modular design |
Easy serviceability |
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Same easy programming as a 6-pulse drive |
User-friendly operation |
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– Standard award-winning control panel (LCP) |
Effective commissioning and operation |
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– Available in 27 languages |
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Facts about our products
Options
The following options are available:
nRFI filters
nDisconnect
nFuses
nMains shielding
nFeedback and I/O options
nFieldbus options
ndU/dt filters
nSine 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 on www.danfoss.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.
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.
From www.danfoss.com you can download the free tool VLT® Harmonic Calculation MCT 31.
Specifications
THiD* at: |
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– 40% load |
20% |
– 70% load |
14% |
– 100% load |
12% |
Efficiency* at: |
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– 40% load |
95% |
– 70% load |
97% |
– 100% load |
98% |
True power factor* at: |
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– 40% load |
91% |
– 70% load |
95% |
– 100% load |
97% |
Ambient temperature |
45° C without derating |
Cooling |
Back-channel air cooling |
* Measured at balanced grid without pre-distortion |
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Norms and recommendations |
Compliance |
IEEE519 |
Depends on grid and load conditions |
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 |
F10 |
F12 |
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F8 |
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400 V AC |
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460 V AC |
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690 V AC |
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Normal |
High |
Normal |
High |
Normal |
High |
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Overload |
Overload |
Overload |
Overload |
Overload |
Overload |
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Power |
Current |
Power |
Current |
Power |
Current |
Power |
Current |
Power |
Current |
Power |
Current |
[kW] |
[A] |
[kW] |
[A] |
[HP] |
[A] |
[HP] |
[A] |
[kW] |
[A] |
[kW] |
[A] |
Frame dimensions
Without options |
With options |
cabinet |
cabinet |
H x W x D |
H x W x D |
IP 21 [mm] |
IP 21 [mm] |
315 |
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600 |
250 |
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480 |
450 |
540 |
350 |
443 |
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450 |
450 |
355 |
380 |
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355 |
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658 |
315 |
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600 |
500 |
590 |
450 |
540 |
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500 |
500 |
400 |
410 |
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F8 |
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F9 |
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400 |
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745 |
355 |
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658 |
600 |
678 |
500 |
590 |
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560 |
570 |
500 |
500 |
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2280 x 800 x 607 |
2280 x 1400 x 607 |
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450 |
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800 |
400 |
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695 |
600 |
730 |
550 |
678 |
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630 |
630 |
560 |
570 |
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500 |
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880 |
450 |
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800 |
650 |
780 |
600 |
730 |
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710 |
730 |
630 |
630 |
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560 |
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990 |
500 |
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880 |
750 |
890 |
650 |
780 |
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800 |
850 |
710 |
730 |
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F10 |
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F11 |
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630 |
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1120 |
560 |
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990 |
900 |
1050 |
750 |
890 |
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900 |
945 |
800 |
850 |
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2280 x 1600 x 607 |
2280 x 2400 x 607 |
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710 |
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1260 |
630 |
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1120 |
1000 |
1160 |
900 |
1050 |
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800 |
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1460 |
710 |
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1260 |
1200 |
1380 |
1000 |
1160 |
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1000 |
1060 |
900 |
945 |
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F12 |
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F13 |
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1000 |
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1720 |
800 |
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1460 |
1350 |
1530 |
1200 |
1380 |
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1200 |
1260 |
1000 |
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1160 |
2280 x 2000 x 607 |
2280 x 2800 x 607 |
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1400 |
1415 |
1200 |
1260 |
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DKDD.PFP.401.A2.02 |
VLT® is a trademark of Danfoss A/S |
PE-MMSC 2014.09 |
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