Specific products to attenuate harmonics
From Electrical Installation Guide
Passive filters
Passive filters are made up of coils and capacitors set up in resonant circuits tuned to the specific harmonic order that must be eliminated.
A system may comprise a number of filters to eliminate several harmonic orders.
Suitable for 400 V three-phase voltages, the power ratings can reach:
- 265 kvar / 470 A for harmonic order 5
- 145 kvar / 225 A for harmonic order 7
- 105 kvar / 145 A for harmonic order 11
Passive filters can be created for all voltage and current levels.
Active filters
- SineWave active harmonic conditioners
- Suitable for 400 V three-phase voltages, they can deliver between 20 and 120 A per phase
- SineWave covers all harmonic orders from 2 to 25. Conditioning can be total or target specific harmonic orders
- Attenuation: THDi load / THDi upstream greater than 10 at rated capacity
- Functions include power factor correction, conditioning of zero-sequence harmonics, diagnostics and maintenance system, parallel
connection, remote control, Ibus/RS485 communication interface
- Accusine active filters
- Suitable for 400 and 480 V three-phase voltages, they can filter between 50 and 30 A per phase
- All harmonic orders up to 50 are filtered
- Functions include power factor correction, parallel connection, instantaneous response to load variations
Hybrid filters
These filters combine the advantages of both a passive filter and the SineWave active harmonic conditioner in a single system.
