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SKiiPRACK® Benefits

The SKiiPRACK offers a pre-qualified power assembly ready for integration following rigorous SEMIKRON qualification and current environmental standards (IEC 60721-3). Based on a “Cell” construction, the SKiiPRACK platform offers high flexibility for designing numerous electrical topologies and for a convenient integration into standard industrial cabinets. The SKiiPRACK has been designed for applications requesting high reliability and a long life time up to 20 years. Totally dismountable, the cell concept eases maintenance phases, reducing the time of handling and application stops.

SKiiPRACK® Key Features

  • Maximum continuous output current from 600A up to 1200ARMS
  • Switching frequency up to 5kHz
  • Inverter output voltage up to 690VAC
  • DC bus voltage up to 1100VDC
  • DC bus polypropylene capacitor bank lifetime rated at 100,000 hours at 40°C
  • Analogue measurement T, VBUS, IOUT
  • As possible options: Brake chopper, additional capacitor bank, DC bus electrolytic capacitor bank, diode/thyristor rectifier cells

SKiiPRACK® Applications

The SKiiPRACK complies with wind turbine requirements, offering the capability to build 4-quadrant converters suitable for synchronous generators and double fed induction generators, with an optional brake chopper design. The platform flexibility allows matching electrical topologies of AC drive applications to power AC induction motors up to 1MW, in particular for pumps or in shipyards.

SKiiPRACK® Product Range

The SKiiPRACK platform consists of a cell HWD 525 x 375 x 470 mm to be assembled with others cells to create a functional unit in standard cabinets 600mm deep and 2,000mm high. A cell can integrate an H-bridge, a 1-phase leg + brake chopper or 12-pulse rectifier, and combination of them can create 3-phase inverter, 4-quadrant converter or 3-phase rectifier and inverter. The output current range offers scalability from 600A to 1200A continuous.

The SKiiPRACK embeds the SKiiP IPM product family which integrates the IGBT gate driver and monitoring analogue outputs (temperature, output current and DC bus voltage). As an option, a CAN interface for supervising the SKiiP. To increase power capacity up to 5MVA, SKiiPRACK can be put in parallel, connected in a very flexible way (horizontal or vertical) together through the DC bus and controlled all-like-one with a SEMIKRON paralleling board. As an option, SKiiPRACK platform can be offered with integration in an industrial cabinet with suitable AC and/or DC power filters, electrical and hydraulic distribution.

SKiiPRACK® Stacks

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