Les options d'alimentation sont conçues pour assurer la meilleure fiabilité et efficacité possibles pour les variateurs de fréquence dans les configurations de système où une grande attention est accordée à la qualité de l'alimentation.
Télécharger la brochure options portfolio (en anglais)
VLT® Advanced Harmonic Filter AHF 005 and AHF 010
- Optimized harmonic performance for VLT® drives rated up to 250 kW
- A patented technique reduces THD levels in the mains network to less than 5–10%
- Perfect match for industrial automation, highly dynamic applications and safety installations
- Line voltage and filter current:
- 3 x 380/400/500/600/690 V...10-480 A*
* Achieve higher ratings by connecting in parallel. See AHF 005 or AHF 010 Design Guide for details.
- 3 x 380/400/500/600/690 V...10-480 A*
- Enclosure ratings:
- IP20 (An IP21/NEMA 1 upgrade kit is available)
VLT® Sine-wave Filter MCC 101
- VLT® Sine-wave Filters are positioned between the AC drive and the motor to provide a sinusoidal phase-to-phase motor voltage
- Reduces motor insulation stress
- Reduces acoustic noise from the motor
- Reduces bearing currents (especially in large motors)
- Reduces losses in the motor
- Prolongs service lifetime
- VLT® FC series family look
- Line voltage and filter current:
- 3 x 200 – 690 V, 2.5 – 800 A*
* For higher power ratings, combine multiple modules.
- 3 x 200 – 690 V, 2.5 – 800 A*
- Enclosure ratings:
- IP00 and IP20 wall-mounted enclosures rated up to 75 A (500 V) or 45 A (690 V)
- IP23 floor-mounted enclosures rated 115 A (500 V) or 76 A (690 V) or more
- IP54 both wall-mounted and floor-mounted enscloures rated up to 4.5 A, 10 A, 22 A (690 V)
VLT® dU/dt Filter MCC 102
- Reduces the dU/dt values on the motor terminal phase-to-phase voltage
- Positioned between the AC drive and the motor to eliminate very fast voltage changes
- The motor terminal phase-to-phase voltage is still pulse shaped but its dU/dt values are reduced
- Reduces stress on the motor’s insulation and are recommended in applications with older motors, aggressive environments or frequent braking which cause increased DC link voltage
- VLT® FC series family look
- Line voltage and filter current:
- 3 x 200 – 690 V ... 15-880 A*
* For higher power ratings, combine multiple modules.
- 3 x 200 – 690 V ... 15-880 A*
- Enclosure ratings:
- IP00 and IP20/IP23 enclosure in the entire power range
- IP54 enclosure available up to 177 A
VLT® Common Mode Filter MCC 105
- Positioned between the AC drive and the motor
- They are nano-crystalline cores that mitigate high frequency noise in the motor cable (shielded or unshielded) and reduce bearing currents in the motor
- Extends motor bearing lifetime
- Can be combined with dU/dt and sine-wave filters
- Reduces radiated emissions from the motor cable
- Reduces electromagnetic interference
- Easy to install – no adjustments necessary
- Oval shaped – allows mounting inside the frequency converter enclosure or motor terminal box
-
Line voltage and filter current:
- 3 x 380-690 V........... 10-480 A
VLT® Brake Resistor MCE 101
- Energy generated during braking is absorbed by the resistors, protecting electrical components from heating up
- Optimized for the FC-series and general versions for horizontal and vertical motion are available
- Built-in thermo switch
- Versions for vertical and horizontal mounting
- A selection of the vertically mounted units are UL-recognized
- Power range:
- Precision electrical match to each individual VLT® drive power size for FC 102, FC 202, FC 301 and FC 302
- Enclosure ratings:
- IP20
- IP21
- IP54
- IP65
VLT® Line Reactor MCC 103
- Ensures current balance in load-sharing applications, where the DC-side of the rectifier of multiple drives is connected together
- UL-recognized for applications using load sharing
- When planning load-sharing applications, pay special attention to different enclosure type combinations and inrush concepts
- For technical advice regarding load-sharing applications, contact Danfoss application support
- Compatible with:
- VLT® AutomationDrive, VLT® AQUA Drive and VLT® HVAC Drive
- 50 Hz or 60 Hz mains supply