Haryana-based Pyramid Electronics has unveiled three-phase, grid-tie string inverters for residential and commercial rooftop solar applications. The inverters are based on silicon carbide (SiC) technology, which allows high power conversion efficiency and power density.
The inverters are available in power ratings ranging from 5 kW to 15 kW, with maximum input DC voltage of 1000V. The 10 kW, 12 kW, and 15 kW inverters have three maximum power point trackers, one for each of the three PV strings that can be connected to the inverter. The MPPT range is 80-800V DC.
With triple MPPT trackers, no paralleling of PV strings happens inside the inverter and thus an excellent MPPT efficiency is achieved, according to the manufacturer.
The 15kW inverter offers an efficiency of 98.2-98.4% and a European efficiency of 97.5%. It weighs 29 kg with dimensions of 600x420x185 mm3.
Three PV strings of 15-20 panels in series can be connected to the 15kW inverter. With a maximum continuous input current of 17A per PV string, the inverter is compatible with even high-power bifacial mono-crystalline PV panels that have a maximum power point current up to 15 A.
With the maximum continuous grid current of 25 A (per phase), the inverter has excellent overload capability and can feed up to 18 kW power into the grid at a nominal grid voltage of 415 V.
For remote monitoring, both WiFi and GSM have been integrated into all the inverters. End customers can remotely monitor the solar energy generation using the company’s mobile application, Pyramid Solar, which is available for both Android and IOS versions.
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