SKiiPRACK®
Versatile high power inverter stack platform
SKiiPRACK® Benefits
The SKiiPRACK offers a pre-qualified power assembly ready for integration following a rigorous 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 lifetime 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 2200ARMS
- Switching frequency up to 5kHz
- Inverter output voltage up to 690VAC
- DC voltage up to 1250V
- DC-link polypropylene capacitor bank lifetime rated at 100,000 hours at 40°C
- Analogue temperature, voltage and current measurement
- As possible options: Brake chopper, additional capacitor bank, DC-link 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 1,2MW, in particular for pump drives or in shipyards.
SKiiPRACK® Product Range
The SKiiPRACK platform consists of a cell 525 x 375 x 470 mm or 660 x 375 x 470 mm to be assembled with other cells to create a functional unit in standard cabinets 600mm deep and 2000mm 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 2200A continuous.
The SKiiPRACK embeds the SKiiP IPM product family, which integrates the IGBT gate driver and monitoring analogue outputs (temperature, output current and DC 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-link and controlled all-like-one with a 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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