10kV high-efficiency three-phase asynchronous motor

Abstract

A 10kV high-efficiency three-phase asynchronous motor relates to the technical field of motors, can achieve the purpose of a high-efficiency and high-rotating-speed three-phase asynchronous motor, and at the same time, facilitates the realization of good reliability of the motor under the condition that the installation spaces of a compressor, a fan, a water pump and the like are limited. In the 10kV high-efficiency three-phase asynchronous motor, the center height of the motor is compressed so as to realize output of large power by a small base number; a single-side 1.8 mm insulation thickness is adopted for 10 kV voltage; the stator and rotor ventilation duct structure comprises a rotor iron core and a stator iron core, and two segments of the stator iron core respectively correspond to one segment of the rotor iron core so as to form ordered dislocation. An end hoop of the stator winding end part fixing structure is fixed by double glass fiber ropes; an end ring of the rotor structure adopts a 0Gr18Ni9 forged steel piece, the exterior of the end ring is in close fit with a pressing ring, and all the excircles of the extending parts of the end parts of the conducting bars are wound by various high-strength materials; the rotating shaft is of a flexible shaft structure formed by welding a special-shaped forged shaft with an auxiliary plate.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to a 10kV high-efficiency three-phase asynchronous motor, in particular to a high-power density, high-efficiency, high-speed, high-speed, high-voltage three-phase asynchronous motor. Background technique [0002] High-power density, high-efficiency, high-speed, high-voltage 10kV high-efficiency three-phase asynchronous motor is the power source of various equipment, and is widely used in compressors, pumps, fans and other mechanical equipment. Due to the high power and high power consumption of high-voltage motors, the efficiency of high-voltage motors used in my country is generally low, 2% to 5% lower than the advanced level abroad, resulting in a large amount of power consumption. If it is replaced with a high-efficiency motor, the efficiency will be increased by 3% on average, and 16 billion kWh can be saved every year. Therefore, improving the motor efficiency is of gre...

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Problems solved by technology

[0004] All the above solutions are at the cost of increasing the cost of motor materials, but it is often found in practice that after electromagnetic optimization and adding effective materials, the improvement in efficiency is limited, the technology is relatively mature, and the selling price of the product is increased to varying degrees. The problem that users cannot accept the price increase

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