Founded in 1995, China Dongda Power Industry Co., Ltd. is one of the few synchronous generator manufacturer and distributor in China that has patents on the generator, motor, power supply, engine, alternator, diesel and gearmotor design, supply and sale. Our custom synchronous generators has obtained the certifications of ISO9001-2000, GS/TUV, CE, VL, EPA, QHS, SON, CAP and SRS and we have won EPA 2005 Motor Year Certification. Our 30 QC staff carefully performs inspections at every stage of production, from the time we receive raw materials to packaging. Noise, power, and stability are tested to ensure that our engines can endure 580 hours of constant use. We also can design and deliver OEM/ODM samples in one month.

ST series generators are mainly designed to serve as power generating unit of small capacity, which supply electricity for lighting purpose in ships, for house-hold electric devices used in towns or villages.
This series of generators are of drip-proof, salient pole rotating field, self excitation and constant voltage type. The alternator is adopted with high quality electric magnetic and electrical materials. Stator insulation class is B. These generators are elegant in appearance, light in construction and easy maintenance. IEC standard are adopted on dimensions, these dimensions are suitable for using in Australia, Europe , America and other countries with the end covers to be model B. The alternators are of harmonic wave self-excitation constant voltage system and automatic voltage control system, both of them have excellent dynamic performance, convenient and reliable in operation. The rated voltage of the alternator is 230V or 115V, the frequency is 50Hz .The alternator can be coupled with a prime mover directly or through a V-belt, with 5% change of speed of the prime mover under load variation of 0-100% at a voltage of 230V or 115V, 50Hz or 60Hz to get a satisfactory constant voltage performance.

The generators are widely used in town, countryside, worksites , mountain and pasture districts as electric power source for lighting purpose , they can also be used as reserved power source for emergency. The series generators are of drip-proof with rotary field type and adopt harmonic excitation system, easy operation and maintenance. The generators are three-phase, four-wire type, adopted star connection with neutral point. The rated line voltage is 400V, phase voltage 230V, frequency 50Hz, power factor 0.8(lag) .we can provide 60Hz and other voltage generators according to the customers request. They can be coupled with a prime mover directly or through V-belt making right or reverse continuous rotation at the rated speed when the revolution slip of prime mover is 3% and load varies within the range of 0-100% , cos? = 0.8-1.0,they give good constant voltage . The generators offer constant voltage when sudden change (increase or decrease) of load, the generator will soon return to their normal working rate, in the same time, the generator can directly start an unloaded squirrel cage induction motor without any starting device.

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