String inverters for ground-mounted solar systems

07/20/2020 | Print view

The cooling system using a combination of natural convection and fans makes the M250HV ideal for use in areas with very high outside temperatures. - © Delta — © Delta

The cooling system using a combination of natural convection and fans makes the M250HV ideal for use in areas with very high outside temperatures.

As part of their virtual trade fair event last week, Delta have been presenting some of their recent innovations in commercial-scale inverters and EV charging solutions. This included the M250HV string inverter:

With a maximum output power of 250 kilowatts and an input voltage ranging between 550 and 1500 volts DC, this high-performance inverter is particularly suitable for large free-field solar plants in the megawatt range. With its peak efficiency of 99 percent, the M250HV optimizes power generation for photovoltaic systems. In addition, the higher input voltage results in lower current, which allows smaller cable diameters and reduces energy losses during operation.

A sophisticated cooling system ensures that the operating temperatures are always within the optimum range for the high-quality electronics. A combination of natural convection and fans is used to ensure airflow through the unit and prevent the formation of hotspots in the enclosure. This makes the M250HV ideal for use in areas with very high outside temperatures. (mfo)