3000KW Bulb Tubular Type Rated Power Bulb Hydro Turbine Generator

Introduction of Bulb Hydro Turbine Generator

Bulb-type hydro-generator refers to a hydro-generator in which the generator and bearings are arranged in a sealed shell shaped like a light bulb. The bulb-type water turbine generator is connected to the water turbine with a straight shaft and arranged in the flow channel. It is characterized by a compact and complex structure, and has special requirements such as moisture-proof and leak-proof. Since the bulb-type hydro-generator is installed in the underwater flow channel, the winding is prone to damp when it is stopped, so its rated voltage is lower than that of the general hydro-generator. The space between the poles of the rotor excitation winding is relatively small, and the number of excitation ampere turns is limited, so a higher power factor is selected.

Technical parameters

About us

The company has provided 59 sets of tubular type unit for 39 hydro power stations, the maximum unit capacity is 40 MW, the water head range is 1.5-23m, the runner diameter is 120cm-670cm, the rotating speed is 71.4rpm-750rpm, and the generator frame is 1.18m-7.45m.

Our typical HPP project references

DEC Dongfeng Electric Machinery Co., Ltd(hereinafter referred as to Dongfeng)formerly known as Sichuan Dongfeng Motor Works, was founded in 1965. As a top-secret military enterprise during the “Third-front Movement”, Dongfeng made a significant contribution to national defense development. In the late 1980s, Dongfeng was gradually transformed from a military company to a civil one, and in 2001, it was reformed to a LLC , wholly-owned subsidiary of Dongfang Electric Corporation and developed into a leading manufacturing enterprise of power generating equipment and electric motor in China. In 2018, Dongfeng was further restructured to a state-owned holding enterprise with the major shareholders of COQ Asset Management Co., Ltd. (a subsidiary of China Orient Asset Management Co., Ltd.), DEC and its top management.

Dongfeng was awarded abundant honorable titles, such as China's Top 500 Manufacturing Enterprise, National High-tech Enterprise, Customer Satisfied Enterprise of National Machinery Industry, Customer Satisfied Enterprise of National Product Quality & After-sales Service, China's Credible Enterprise, National Grade-one Metrology and Grade-one Safety Standardization. Dongfeng was also certified with ISO9001 quality management system, GJB Weapon Equipment Quality Management System, IATF16949 Automobile Quality Management System and HSE National Occupational Health and Safety ( Environment Management ) System, and has implemented the information system of ERP/OA/E-HR/SRM/CAPP and so on.

Dongfeng has a powerful strength of research and development , and it is one of the auxiliary research units of the national "863" program as well as the research center of high-efficiency electrical engineering technology in Sichuan province. There is a specialized R&D team in which top experts are granted allowance from the state council and senior engineers are included. Dongfeng is able to realize R&D of all series products by using sophisticated design tools such as the large-scale CAD workstation and the CATIA 3D software. The national level double-fed wind power generator test station, and the electric drive system test center can meet product quality assurance by conducting series of tests and verifications.

Dongfeng is capable of designing and manufacturing the Francis type, Kaplan type, Tubular type, Impact and Pumped Storage Hydro Generator Set with unit capacity up to 150 MW, and conventional steam turbine, TRT, gas turbine, cogeneration steam turbine generator set of unit capacity up to 60 MW , and wind turbine generator set of unit capacity from 1 MW to 3 MW, and new energy electric vehicle drive system, high-efficient motor, special motor, medium frequency motor, large and medium pump equipment, environmental protection equipment, large hydraulic metal structural parts and so on.

Dongfeng is empowered to import and export mechanical and electrical products by itself. And Dongfeng products have been successfully exported to more than 30 countries and regions including the United States, Japan, Chile, Turkey, North Korea, India, Pakistan, Vietnam, Myanmar, Ethiopia and so on. More than 1,200 sets of hydroturbine generator, 1,800 sets of steam turbine generator, 5,000 sets of wind turbine generator and up to 10,000 sets of drive system are provided to customers home and abroad. With its energy efficiency level superior to the national standard level-1, the ultra-high efficient permanent magnet synchronous motor of Dongfeng has been certified by CQC China energy-saving product and listed into the promotion catalogue of "energy efficiency star" issued by Ministry of Industry and Information Technology in 2017.

Dongfeng is situated in Leshan City, Sichuan Province, a famous historical and cultural city, adjacent to two World Cultural and Natural Heritage Emei Mountain and Leshan Giant Buddha. Near the mountain and by the river, Dongfeng has its own factory covering area of more than 700 acres and is blessed with its advantage of convenient transportation.

Dongfeng is always tirelessly adhering to the company philosophy of “discovering value and creating the future” and repay to the society with products and service of high quality. Looking forward to the close cooperation with customers home and abroad for mutual development.