Sinewave filters covert the modulated, rectangular PWM VFD waveforms to, more sinusoidal motor voltages. They also reduce the acoustic switching noise associated with VFDs due to motor magnetostriction.
The use of sinewave filters permits the use of long cable lengths and prevents associated “standing waves” phenomena by eliminating cable ringing. Very popular for ESP artificial lift applications to prevent cable reflections due to very long cable lengths and to improve the quality of VFD output waveforms.
Sinewave filters reduce bearing currents caused by circulating currents but not common mode currents (i.e. shaft currents).
Available 2-1000A from 380V to 690V 50/60Hz in IP00 to IP20 for panel mounting and enclosures to IP54.
IP00 Sinewave filter with single three phase capacitor for panel mounting
IP00 Sinewave filter with IP23 capacitor bank
Brochure with specifications
For sinewave filter brochure click above
Harmonic Solutions Oil & Gas has the knowledge and experience
When applied correctly, filters are an important tool in the mitigation toolbox. However, no form of mitigation is perfect. The secret of success is recognising the pros and cons of all types of active and passive mitigation and being able to apply the most appropriate form of mitigation for any given application.
The staff at Harmonic Solutions Oil & Gas have been involved in applying active and series passive filters since 2003 to on demanding marine and offshore applications since 2007 with our site harmonics, PQ and site services.
Contact us with your application details and let us assist you.