The motor model is a code used for reference by departments such as use, design, and manufacturing for business communication and to simplify the description of product names, specifications, and types in technical documents. Below is an introduction to the meaning of motor model and related information.
I. Composition and meaning of motor model
The motor model is composed of four sections in order: motor type code, motor characteristic code, design sequence number, and excitation method code.
1. The type code is represented by Chinese pinyin letters to indicate the type of motor.
For example:
Asynchronous motor Y Synchronous motor T
Synchronous generator TF DC motor Z
DC generator ZF
2. The characteristic code is represented by Chinese pinyin letters to indicate the performance, structure, or application of the motor.
For example:
Explosion-proof type is indicated by B, used in YB axial flow fans with YT
Electromagnetic brake type is YEJ, variable frequency speed control type is YVP
Multi-speed pole change type is YD, for cranes is YZD, etc.
3. Design sequence number refers to the order of motor product design, represented by Arabic numerals. The first design product does not have a design sequence number, while products derived from a series are marked with the design sequence number in order.
For example: Y2 YB2
4. Excitation method codes are represented by letters, S indicates third harmonic, J indicates thyristor, X indicates phase compound excitation.
For example: Y2– 160 M1 – 8
Y: Motor type, indicating an asynchronous motor;
2: Design sequence number, "2" indicates a product improved based on the first design;
160: Center height, which is the distance from the motor shaft center to the base plane;
M1: Base length specification, M indicates medium size, where the subscript "2" represents the second specification of the M-type core, and "2" type core is longer than "1" type core.
8: Number of poles, "8" indicates an 8-pole motor.
For example: Y 630—10 /1180
Y represents asynchronous motor;
630 represents power of 630KW;
10 poles, stator core outer diameter 1180MM.
II. Specification code mainly uses center height, base length, core length, and number of poles to represent
1. Center height refers to the height from the motor shaft center to the base foot bottom surface; according to different center heights, motors can be divided into large, medium, small, and miniature types, among which center height
H in the range of 45mm~71mm belongs to miniature motor;
H in the range of 80mm~315mm belongs to small motor;
H in the range of 355mm~630mm belongs to medium motor;
H over 630mm belongs to large motor.
2. Motor base length is represented by internationally standard letters:
S—short base
M—Middle Frame
L—Long Frame
3、Core Length is indicated by Arabic numerals 1, 2, 3, 4, etc., representing from longest to shortest.
4、Pole Numbers include 2-pole, 4-pole, 6-pole, 8-pole, etc.
Three、Special Environmental Code Regulations are as follows:
Special Environmental Code
High-pressure for "high" area G
Ship for "sea" use H
Outdoor use W
Chemical Corrosion Prevention F
Tropical use T
Humid tropical use TH
Dry tropical use TA
IV. Supplementary codes apply only to motors with supplementary requirements
Example:
The product model YB2-132S-4 H of the electric motor indicates the meaning of each code as follows:
Y: Product type code, indicating asynchronous motor;
B: Product characteristic code, indicating explosion-proof type;
2: Product design sequence number, indicating the second design;
132: Motor center height, indicating the distance from the axis to the ground is 132 millimeters;
S: Motor base length, indicating short base;
4: Number of poles, indicating a 4-pole motor;
H: Special environment code, indicating marine motor.
Through the above detailed introduction of the motor model, it is believed that in the future, when seeing a product model, you can know the type, characteristics, design sequence number, motor specifications, and the environment it is used in.
