Semikron SKiiPRACK inverter platform

Friday, 11 February, 2011 | Supplied by: Semikron Pty Ltd

The SKiiPRACK high-power converter/inverter platform for industrial applications, including AC/DC drives, wind power, industrial power supplies and power conversion applications, is configurable for power ratings ranging from 150 kVA to 3 MVA.

With a power density of more than 12 kVA/litre, it is said to be 25% more compact than other devices. A single 3 MVA three-phase inverter or 1.5 MVA three-phase four-quadrant converter can be installed into a standard 600 x 600 x 2000 mm cabinet.

Larger configurations such as a 3 MVA four-quadrant converter can be realised by mounting the unit side by side in a larger cabinet.

The modular block assembly is available in different versions which are connected together to configure a complete converter/inverter to the user’s requirement.

Each phase assembly comprises a water-cooled cooling plate, one or two intelligent power modules, snubbers, a capacitor bank and a low-inductance DC bus bar housed in a rigid mechanical frame with a sliding mechanism for ease of servicing.

A variety of phase assembly configurations is available. For example, a singular-phase assembly can contain four units to make a three-phase inverter plus brake chopper at 450 kVA.

Alternatively, at the high end of the power scale, one-phase assembly can contain two units connected in parallel to form one phase of a 3 MVA inverter, with three of these phase assemblies mounted in one cabinet forming a complete three-phase converter/inverter.

A choice of either electrolytic capacitors, or polypropylene capacitors for long lifetime, is available.

Phone: 03 8561 5635
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