Selection of Main Motor and Transmission Type for Large- and Medium-sized Pumping Stations
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Abstract:
More than 5500 pumping stations have been constructed in China until 2004; however, the constructed pumping stations have some shortcomings such that the type of main motors and the mode of transmission are quite unitary. In recent years, new type of motors and new mode of transmissions appear and they have been successfully applied in other industries. Consequently, it is necessary to investigate the feasibility of new type of motors and new mode of transmissions applied in pumping stations. In this paper, the application examples of high speed motor supporting reduction gear transmission mode are introduced, the effects of the above mode and direct transmission mode on the total weight of unit are compared, and the application prospect and feasibility of AC-excited motors and inner-feedback motors in the large- and medium-sized pumping stations are discussed. The AC-excited motor has been successfully applied in wind power, whereas the inner-feedback motor has been successfully applied in power plants and waterworks... Finally, this paper proposes that application of the new type of motors and new mode of transmissions should be promoted in the construction and transformation of large- and medium-sized pumping stations, which can achieve the purposes of investment saving, energy conservation, and improvement of pumping station technology.
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