Home

Sine Filters


Sine Wave Output Filter Modules deliver a smoother sinusoidal waveform with minimal residual ripple, effectively addressing issues commonly associated with square waveforms featuring high voltage spikes, often observed at the output of motor drives. By integrating these filter modules, challenges encountered when utilizing motor drives in long cable applications are mitigated.

Additionally, they enable the use of low voltage motor drives with medium voltage motors by positioning them in front of step-up transformers.

 

Advantages

 

  • Nearly perfect sinusoidal output voltage
  • Protection of motors against high voltage spikes
  • Elimination of acoustic noise in the motor
  • Reduction of motor bearing currents
  • Extension of equipment lifespan
  • Compliance with the standards of general purpose motors
  • Usage of unshielded cable
  • Suitable for multiple motor operations

 

Typical Applications

 

  • Motor Drives with long motor cables
  • Motor Drives with the existing motors
  • Motor Drives with a step-up transformer
  • Compressors
  • HVAC
  • Cranes
  • Conveyors
  • Elevators and Escalators
  • Pumps

 

Technical Specifications
Motor drive input power ratings 0.3-630kW (parallel operation for higher power ratings)
Operation voltages Standard voltages up to 690V
Operating frequencies 50Hz - 60 Hz (without derating)
Rated currents 1A - 1200A
Minimum switching frequency 1.5kHz - 4kHz (depending upon filter rating)
Maximum switching frequency 8kHz
Overload capability 1.6 x rated current (1 min/hour)
Protection degree IP20 (upper protection degrees are upon request)
Ambient temperature -30°C to +50°C
Altitude < 1000m
 Home