High-voltage frequency converter

SCAD tech produces high-voltage frequency converters within the power range of 1 to 8 MW for voltage from 2.3 to 11 kV. Frequency converters are designed to control asynchronous or synchronous motors; help to reduce operating costs and amortization of controlled motors.

Special features of Frequency Converter SCAD Drive 2000 series:

Portability
  • Through the use of modern components, as well as multilevel topology, dimensions of converter are significantly reduced in comparison to analogues from other manufacturers.
  • Frequency converters for most common sizes have one-side maintenance.
  • Converters are manufactured in cabinet version with the degree of protection IP31, IP41, IP42. A multilevel technology.
  • Frequency converter’s topology allows to use it to administrate already installed standard motors without requiring additional matching equipment, which guarantees a quick return on investment.
  • Multilevel technology allows to obtain an almost sinusoidal current curve and provide a total value of nonlinear distortion factor of input current <2%.
  • Voltage quality at frequency converter output allows to control motors that do not have special design and reinforced insulation.
  • Maximum allowed cable length between converter and motor is 2000 m.
  • There are no special requirements for a cable between converter and motor.
  • Due to low du/dt and a small formation of the voltage curve change, lifecycle of motors increases.
  • Due to use of the latest generation of IGBT transistors, the frequency converter meets the strictest requirements for maintaining specified motor speed.
Structural design
  • Due to usual lack of additional free space inside existing buildings at customer’s premises, frequency converter of SCAD tech is practically delivered in a portacabin design, which allows to install it on any surfaces and in any climate conditions.

Other advantages


  1. The converter efficiency is 96.5%.
  2. A wide range of various built-in functions and visually comprehensible software facilitate setup process and further operation.
  3. Low number of spare parts, due to their equivalence.
  4. Frequency converter output voltage curve eliminates negative effects on motor windings due to the small change in voltage between converter cells

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