Three Phase Induction Electric Motor

YX, YXKS, YXKK series of medium and large high-efficiency high-voltage cage three-phase asynchronous motors have a total of forty center heights from H90 to H1250. Our company has adopted modern advanced analysis technology, combined with our company's years of experience in designing and manufacturing motors. Calculate and optimize the design of various losses, wind resistance of each wind path, and strength of each component. The use of high-quality materials and scientific processing technology in the manufacturing makes the series motors have the advantages of high efficiency, low noise, low vibration, high reliability and convenient installation and maintenance.
The efficiency indicators of this series of products comply with the regulations of the Ministry of Finance and the National Development and Reform Commission on the "Implementation Rules for the Promotion of Motors in Universities and Colleges for Energy-saving Products Benefiting Projects".
This series of motors can be used to drive various general machinery such as fans, pumps, compressors and other mechanical equipment, and are widely used in electric power, machinery, mining, metallurgy, petrochemical and other industrial and mining enterprises.
2. Implementation standards
GB 755 Rotating Electric Machine Rating and Performance
GB/T 1993 Rotating electric machine cooling method
GB 10068 The measurement, evaluation and limits of mechanical vibration of motors with a shaft center height of 56mm and above
GB/T 10069.1 Rotating electrical machine noise measurement method and its limits Part 1: Rotating electrical machine measurement method
GB 10069.3 Rotating Machine Noise Measurement Method and Limits Part 3: Noise Limits
GB/T 13957 Technical requirements for basic series of large three-phase asynchronous motors
Technical conditions of JB/T 7593 Y series high voltage three-phase asynchronous motor (frame size 355~630)
JB/T 10315.1 YKS, YKS-W, YQF series high-voltage three-phase asynchronous motor technical conditions (frame size 355~630)
JB/T 10315.2YKK, YKS-W series high-voltage three-phase asynchronous motor technical conditions (frame size 355~630)
JB/T XXXX YKK series, YXKK series high voltage (10KV) three-phase asynchronous motor technical conditions and energy efficiency classification (frame size 400~630)
3. Basic technical parameters
Power range: 18.5-25000KV
Number of poles: 2P-16P
Rated voltage: 380KV-13.8KV (6KV and 10KV parameters are listed in the data sheet, and can also be made into 3KV, 6.6KV, 11KV, 13.8KV)
Rated frequency: 50Hz, 60Hz
Insulation class: F
Protection level: IP23, IP44, IP54
Cooling method: IC01, IC81W, IC611, IC616, IC666
Installation method: IMB3
Quota: SI (work system)
Four, technical characteristics and structure type
4.1 This series of motors adopt a box structure, the frame is welded by steel plates into a box type, light weight, good rigidity, the top of the motor is equipped with a protective top cover or cooler, which is convenient for motor heat dissipation, installation and maintenance.
4.2 The stator is made of high-quality low-loss silicon steel sheets laminated in sections to ensure the quality of the iron core, so as to reduce iron core loss and improve efficiency. The stator winding is made of F-class insulating material, which has strong insulation withstand voltage and anti-corona ability. The winding ends are reliably fixed and tied, and vacuum pressure impregnation solvent-free paint process (VPI) is used, so the motor's insulation performance Excellent and reliable, high mechanical strength, strong moisture resistance and long service life.
4.3 Our company designs a fan size in the same center, high and the same pole number according to 1-2 power files, each fan calculates the air inlet and outlet angles in detail, and uses Ansys to analyze the partial pressure air volume of each section of the air duct, and design a reasonable air duct The distribution and number of air ducts strictly control the wind friction of the motor.
4.4 The use of copper row rotors can effectively reduce additional stray losses and reduce rotor bar losses.
4.5 Through the German LDW motor high-power and high-efficiency motor technology transformation work, the slot-piece optimized structure is adopted, the air path is optimized, and the overall wind resistance of the motor is reduced to reduce the overall wind path loss.
4.6 The bearing adopts two types of rolling bearing and sliding bearing. It is determined by the power and speed of the motor. Its protection level is IP44, IP54 or IP55. The rolling bearing is equipped with a non-stop oil injection and drainage device, which is easy for users to use and maintain.
4.7 The main junction box is placed on the right side of the motor (viewed from the extension end of the main shaft), or it can be placed on the left side according to user requirements. Separate grounding terminals are provided inside and outside the junction box.
4.8 According to user requirements, temperature measuring devices can be added to important parts such as stator windings and bearings to facilitate on-site observation and remote monitoring to ensure safe and reliable operation of the motor.
5. Conditions of use
5.1 Ambient air temperature: -25ºC~50ºC
5.2 Altitude: no more than 1000 m
5.3 Rated frequency: 50Hz, allowable frequency deviation ±1%
5.4 During voltage operation, the allowable voltage deviation is ±5%. (It can run at ±10% under the condition of 7.3 in GB 755)