SEMIKUBE SlimLine three-phase solar inverters

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The SEMIKUBE SlimLine three-phase solar inverter features easy cabinet assembly, full system monitoring and environmental and electrical robustness. It is available in four different frames, covering a power range of 75-1000 kVA with a power density up to 7.8 kVA/L. Complying with solar standards IEC 62109-1 and UL1741, the product is designed for UL approval at 1000 V.

The air-cooled stacks close the gap for inverter set-ups up to 1 MW, while the latest IGBTs ensure a long service life. The integrated system monitoring collects all data of heatsink temperature, DC link and current, and provides them, galvanically isolated, to the controller.

Due to the high accuracy of DC link and current signals, the life cycle service management can be optimised. The integrated driver electronics contains all the protection, measurement and control functions needed to operate an inverter at up to 1000 VDC link voltage. A CAN interface provides for parameter setting of error and signal management, as well as failure diagnostics. Error conditions can easily be analysed in the field by the CAN readout, which reduces the service effort.

The flat frame provides two IP54 separated areas for power component cooling on the back side and user electrical interface on the front side, which enables use in tough environments. The specification for 95% humidity and 60°C ambient temperature covers even the harsh conditions of central solar inverters in rural areas. Cooling is ensured by electronic long-life axial fans, with speed control for maximum efficiency. The air-cooled film capacitors ensure long-life performance.