Note: The rank is not divided early or late.
Xiaochang of product of three-phase asynchronous electromotor is known
Electric machinery is main by guide magnetism material (silicon steel piece) , coil winding (cupreous wire) reach the composition such as baseplate crust component. Its job principle namely the electromagnetism induction in physics is mensurable. When mechanical energy change calls a dynamo for electric energy, conversely electric energy change is mechanical energy is electromotor, it is the motor that people says normally. Electromotor differs by power supply source, divide again for dc machine and alternating current machine. AC motor is divided again for single-phase with three-phase asynchronous electromotor. Three-phase asynchronous electromotor is medium the dominant product of small electric machinery, its serve as one of the mainest power plant, electric energy changeover is mechanical energy, drive is of all kinds and mechanical equipment, apply extensively at chemical industry, spin, metallurgy, building, agriculture machinery, mine, light industrial wait for an industry, regard subway of machine of fan, water pump, compressor, machine tool, printing machine, paper machine, spin, rolling mill, air-conditioner, city, light course as traffic and mine in great quantities the dynamical source of the main and mechanical drive such as electric car, it is the mechanical and electrical products with wide range of big form a complete set of a kind of crop, economy, energy-saving to the countryman having extremely close relationship and main effect with each domains such as environmental protection and people life, developed indispensable with the function that cannot supersede.
The general requirement that chooses three-phase asynchronous electromotor is as follows:
1, choose electric machinery by means of existing power source power supply and capacity rated voltage and power.
A, current mains frequency of our country power supply is 50Hz, 110V of grade of main and commonly used voltage, 220V, 380V, 660V, 1000 (1140V) , 3000V, 6000V, 10000V.
Power of B, electric machinery is chosen besides contented outside pulling the mechanical load that move to ask, return Lv of take an examination to whether have the power supply network of sufficient capacity.
2, the choice of electric machinery type and circumstance of pollution of environment of use requirement, moving place await a condition to wait compatibly about.
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