Active Front End

AFE2000 Series

Active Front End  - AFE2000 Series - Delta Group
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Active Front End (AFE) is a controllable rectifier with advantages such as providing bidirectional power exchange between AC and DC power and regenerating reusable power to the mains to reduce the cost of power. The AFE uses PWM modulation to greatly reduce distinctive peaks of current and form perfect sine wave current. The power factor is corrected up to 1—the ratio between load capacity and power capacity is 1:1.In addition, the AFE eliminates high order harmonics, provides very low harmonic current THD<5% while improving the power factor, which allows you to save the cost of purchasing additional electrical equipment for better power quality,. The AFE also offers stable power quality unaffected from mains power fluctuations and can be applied to a serial connection.

Incorporating years of experience in AC motor drive development, Delta introduces the innovative AFE2000. This unit is designed for a wide range of applications and it achieves outstanding energy saving results. The AFE2000 does not dissipate excess heat into the air but converts it into reusable power that can be supplied back to the mains. The AFE2000 is yet another Delta product that contributes to improving efficiency and productivity and that fulfills our mission "to provide innovative, clean and efficient energy solutions for a better tomorrow".
tab_dot Large-inertia load applications: roving machines, horizontal spiral centrifuges, drilling machines.
tab_dot 4-quadrant load applications: cranes, cargo elevators, passenger elevators, oil production machines.
tab_dot Quick brake applications: machine tools, high-speed spindles, bag making machines.
tab_dot Long-term feedback energy applications: wind power systems and water power systems.
tab_dot DC power supply applications: logistics and storage systems, wind power systems, LED lighting systems.
tab_dot Provides excellent power quality for the communication transmission systems of Power Line products.
tab_dot Overhead Traveling Crane
tab_dot Elevator
tab_dot Energy saving with AC/DC dual power flow control and corrects power factor up to 99%.
tab_dot Replaces traditional braking resistor for cost savings, space savings, and energy savings.
tab_dot PWM control substantially reduces peak of harmonic current wave and forms perfect sine wave current.
tab_dot IEEE STD.519–1992 standard for harmonic current distortation of less than 5%.
tab_dot Constant DC bus voltage that is not influenced by mains voltage fluctuation.
tab_dot Supports multiple DC bus intallation:
  Outstanding Energy Saving Results
tab_dot Controls harmonic distortion to less than 5% and corrects the power factor up to 99%.
tab_dot As a replacement for traditional brake resistors: A high-watts brake resistor is usually applied to a traditional AC motor drive to absorb the excess regenerative energy generated by motor spinning and frequent braking, and then dissipating the excess energy as heat (see Figure 1).. Using brake resistors as an excess energy solution not only creates additional hardware but also occupies more space. The Delta AFE2000 series provides a new solution: instead of dissipating regenerative energy as heat, it converts regenerative energy into reusable electricity and sends it back to the mains, which reduces total energy consumption. The AFE2000 series is a cost saving and environmentally-friendly product (see Figure 2).
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