Recently, Beijing's newly developed 500kW PV Grid-Connected Inverter (SunVert500HE) has successfully passed the quality supervision and spot check of the General Administration of Quality Supervision, Inspection and Quarantine in Beijing at one go. This fully demonstrates that Beijing High-PV Grid-connected Inverter , Technology, innovation, strong scientific research capabilities and quality product quality, the company will take this as an opportunity to continue to focus on improving product quality, make greater contribution to the new energy industry. National Smart Microgrid control equipment and system quality supervision and inspection center entrusted by the State General Administration of Quality Supervision, Inspection and Quarantine to our company for inspection SunVert500HE photovoltaic grid-connected inverter system sampling test, the quality testing and determination strictly based on "photovoltaic power generation and Network inverter technical specifications "(NB / T32004-2013) and the latest" photovoltaic inverter inverter product quality supervision and inspection of the implementation of the national program ", through the conversion efficiency of the product, the solid insulation frequency withstand voltage, harmonic Wave and waveform distortion, over / under-voltage protection, over-voltage operation and a series of performance tests, the test results are in line with product industry standards. Beijing can be completely independent research and development of SunVert500HE photovoltaic inverter with intelligent design concept to make it has a stable and efficient operation of the advantages of power components can be adapted to the over-distribution trend to meet the continuous operation of 120% rated power overload requirements, the maximum conversion of products Efficiency up to 98.7%, self-consumption at night is less than 25W, can reduce power consumption; and network power accuracy of 0.5, dual redundant power supply, effectively improve power supply reliability; with night SVG function, better to maintain grid stability. Photovoltaic grid-connected inverter as the core equipment of photovoltaic power station, its advanced technology and safe operation ability has been widely photovoltaic manufacturers and PV power plant owners are widely concerned. With the growing number of photovoltaic ground power station construction scale, product homogeneity and price melee fighting and many other issues intensified, making many manufacturers have to blindly cut costs to meet the market demand, which directly affects the safety and quality of equipment Performance and stability of photovoltaic power plant operation. Beijing can not sacrifice the cost of product quality at the expense of reducing costs, will insist on reducing costs through technological innovation, and strive to high-quality product quality and service to our customers to create sustained and stable earnings.