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Powerful 1500 VDC string inverter

With the launch of the SG350HX, a 1500 V PV string inverter, Sungrow is now able to offer a solution that features a maximum output power of 352 kW.

Compared to Sungrow’s last generation inverter, the new inverter offers a significant increase in output power of about 40 percent. The inverter benefits form Infineon's customised EasyPACK power modules which are equipped with the CoolSiC MOSFET, the latest generation CoolSiC diode, along with the company's latest TRENCHSTOP chip technologies.

The inverter supports a DC/AC ratio of up to 1.8 and is highly compatible with 182 mm and 210 mm large-sized high-efficiency modules with a maximum input current of 20 A. As a result it can use solar modules with power ratings of 600 W and higher. The device can also operate stably in extremely weak grid conditions.

Weighing only 110 kg, the inverter features twelve MPPTs (Maximum Power Point Tracking) at 40 A. With two strings connecting to one MPPT, there is no threat of a string reverse connection. Each one helps to increase the power density by approximately 28 percent compared to the previous generation. Thanks to smart-forced air-cooling technology and IP66 protection, the solution can be installed in harsh conditions.

Neil Tyler

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