Slip Energy Recovery drive (SER drive) for wound rotor induction motors with quadratic torque drives such as pumps and fans. The RecoveryDrive combines the highest efficiency achievable in induction motors, recovering the slip energy from the motor and returning it to the grid, at a lower cost. Ideal for applications that do not require higher than rated speeds (subsynchronous speeds).
  • Start-up capacity or redundancy. System with integrated start-up method, with the option of incorporating a liquid resistance starter to provide redundancy
  • Maximum efficiency. Slip energy recovery provides a higher level of efficiency compared to other technologies
  • Easy integration. It is easily integrated into your installation, offering a quick return on investment.

Interface and connection RecoveryDrive


Type Eco
Motor nominal power 500…7000 kW
Max. rotor current 2000 A
Max. rotor voltage 3000 V
Rotor configuration 6-pulse DFE
Recovery configuration 6-pulse SCR
Applications Fans, pumps,…
Starting method Capable
Operating speed range 0%-100%
Efficiency at full speed 99,5%
Power factor 0,87
Ambient temperature 0°C to 55°C with derating, 0°C to 40°C at maximum ratings
Altitude above sea level 0 to 2000 m (standard) , up to 5000 m (high altitude version)
Cooling method Air-cooled
Footprint (L x W) 3.90 x 1.00 m
Redundancy Optional
Human Interface Color touch screen HMI 7″ (800 x 640)
Communications Ethernet IP, EtherCat, ProfiNet, Profibus-DP, DeviceNet, Modbus
Recovery transformer Outdoor ONAN (standard) / indoor dry cast-resin (optional)