Performance Level National Standard GB diesel generator set / T2820 1-1997 "Reciprocating internal combustion engine driven alternating current generating sets" Part I: Application, ratings and performance in Article 7 of the diesel generator provides four properties. (1) G1-level performance requirements apply only the provisions of the basic parameters of the voltage and frequency of the connected load. Primarily as a general purpose, such as lighting and other simple electrical load. (2) G2-level performance requirements applicable to the common voltage characteristics and have the same power system load requirements. When its load changes, however, may have temporarily allow the voltage and frequency deviation. Such as lighting systems, pumps and fans and so on. (3) G3-level performance requirements apply to the frequency, voltage and waveform characteristics of the connected devices have strict requirements. The radio communication and thyristor controlled rectifier load. (4) G4-class performance requirements apply to the frequency, voltage and waveform characteristics are particularly stringent requirements of the load. A data processing device or meter grate system. Weifang Huadong Engine Co., Ltd., is the emerging modern joint-stock enterprise specializing in the production of diesel engines and turbines. After several years of rapid development in the peer companies in the overall strength has been among the best high-speed turbo-generator to reduce mechanical stress due to the centrifugal force generated by the wind and reduce wear, the rotor diameter is generally made smaller, East unit, the length of the relatively large, That is, using thin rotor. Especially in 3000 r / min or more large-capacity high-speed unit, Weifang Huadong unit supply peaks, due to the relationship between the strength of the material, the rotor diameter is strictly limited, usually no more than 1.2 meters. The length of the rotor body has been critical speed limit. Manufacturer Shandong East China unit _ Shandong East China (certification) _ EAST unit provided by Weifang Huadong Engine Co., Ltd. Weifang Huadong Engine Co., Ltd. (www.hdchai.com) is an industry leader in Shandong Weifang, the internal combustion engine, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Weifang Huadong leadership with the staff warmly welcome all inquiries negotiations to create a better future Weifang Huadong.