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active infeed converter - 120 kW - 480 V Schneider

active infeed converter - 120 kW - 480 V Schneider
Energy regeneration and sinusoidal line current 120 - 860 kW Altivar AFE (Active Front End) - Option for energy regeneration to the line supply

Line disturbance/conditions
 THD(i) of less than 4%
 Power factor of cos Phi 1 independent of the load and the energy direction
 Line voltage drops of up to 40% without disturbing operation
 Wide frequency range
 Line short-circuit power up to 100kA

Simple planning and installation
  Line contactor already integrated
 No external control voltage supply necessary
 Integrated charging circuit providing a maximum fourfold power at the DC bus
 Operation independent of the phase sequence

Energy-saving operation
 Energy regeneration to the line supply
 Improved efficiency thanks to an innovative control system
 No need for damping resistors (which cause heavy losses), thus making it is especially robust in heavily distorted supply voltages
 Reduction of transformer losses, wiring and switching devices

The Active Front End is connected upstream of the standard frequency inverter and consists of three components :
 Active infeed converter - AIC
 Line filter module - LFM (EMC filter, line contactor and charging circuit)
 Line filter choke - LFC (3 parts)

Technical data
 Power range of 120 860 kW
 3-phase 380 - 480V 10%; 50/60Hz 5 %
 3-phase 500 - 525V 10%; 50Hz 5 %
 3-phase 575 - 690V 10%; 50/60Hz 5 %
 Built-in unit with protection degree IP00
 Operating temperature from -10C...+45C (up to +60C with derating)



The Active Front End (AFE) is an option for frequency inverters to return energy to the line supply. It provides 4-quadrant operation and reduces the total current distortion factor THD(i) to a value of less than 4%

The Active Front End is an option for frequency inverters to return energy to the line supply. It provides 4-quadrant operation and thus is ideal for all applications with a generator operating mode. State-of-the-art components, a new control concept, as well as a top-quality filter module all serve to reduce the total current distortion factor THD(i) to a value of less than 4%.


  • Crane applications (hoists, long travel motion)
  • Downhill conveyors, winches, escalators
  • Complex drive systems
  • Test benches and high dynamic drives
  • Pump/turbine combinations
  • Low harmonic drives

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Altivar AFE (Active Front End) - Option for energy regeneration to the line supply
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