Delta’s three-phase grid-connected solar inverter C1000 has won the favor of Taipower and Star Energy because of its specifications that are superior to the bid and professional services. According to Star Energy’s plan, there are sixty-nine 40-foot containers installed in hundreds of hectares of salt fields, and each container will be equipped with two pieces of C1000, which will be responsible for converting the direct current generated by more than 480 thousand solar panels on site and then integrating the alternating current into the power grid, so that the currently largest solar farm in Taiwan can provide 200 million kWh of green electricity per year for household, industrial and commercial use.
The C1000 provided by Delta for this project is not only the only large-scale centralized inverter among Taiwanese brands that can provide 1MW, but also boasts 98.84% ultra-high efficiency. It can feed the electricity generated by the solar system into the mains with the maximum power during the day when there is sunshine; when night falls, it uses the "virtual work at night" function provided by it to stabilize the mains voltage by means of virtual work compensation, thereby protecting stability of the grid. In addition, as the equipment of this project must be installed in the salt flats, and the location is close to the sea, the equipments thus tried rigorously by the environment of high humidity, high heat, strong wind, and high salt.
Fortunately, the C1000 provides an IP65-rated enclosure, which provides better protection against entry of fine solid particles and permeation of liquid than the requirements of IP54 specified in the project. In addition, the C1000 with a broad temperature design can operate stably in a wide range of temperatures (-25°C - 60°C); and having obtained the voluntary product certification (VPC) and certification of IEC 60068-2-52 salt spray test also proves that C1000 is a durable and excellent product. Therefore, even if it is not placed in a container but installed outdoors in a bare manner, its excellent tolerance is sufficient to withstand the trial of the harsh environment.
For the load reduction and mechanism of protection, unlike commercially available products that drastically reduce the load when encountering high temperatures, the C1000 will only start to reduce the load slowly when the ambient temperature detected is greater than 50°C, in order to maintain a higher level of power generation. The built-in DC and AC circuit breakers provide protection functions, and will automatically trip in the event of an abnormality or failure to ensure the safety of the inverter and the power system.
Salt-field-converted solar farm in Tainan used Delta's centralized inverter C1000