This standard specifies the type, basic parameters and dimensions, technical requirements, test methods and inspection rules, as well as marking and packaging requirements of YW series sparkless three-phase asynchronous motors. This standard applies to YW series sparkless three-phase asynchronous motors with frame sizes of 80 to 315 (hereinafter referred to as motors). All series of motors derived from this series of motors can also refer to it. JB 5337-1991 Technical conditions for YW series sparkless three-phase asynchronous motors (frame sizes 80-315) JB5337-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T5337-1991
Technical conditions for YW series sparkless three-phase asynchronous motors (frame size 80~315)
Published on June 28, 1991
Implementation on July 1, 1992 by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
Technical conditions for YW series sparkless three-phase asynchronous motors (frame size 80~315
1 Subject content and scope of application
JB/T5337—1991
This standard specifies the types, basic parameters and dimensions, technical requirements, test methods and inspection rules of YW series sparkless three-phase asynchronous motors. And requirements for marking and packaging. This standard applies to the sparkless three-phase asynchronous motors of the 80~315YW series with frame sizes (hereinafter referred to as motors). All series of motors derived from this series of motors can also be implemented as a reference. The explosion-proof performance of this series of motors complies with the provisions of GB3836.8 and is made into a sparkless type. The explosion-proof mark is nIT3. It is suitable for Zone 2 locations in factories containing explosive mixtures of flammable gases or vapors and air in temperature groups of T1~T3. 2 Reference standards
GB1993
GB1032
GB10069.1
GB10069.3
GB10068.1
GB10068.2
JB/Z29 4
JB/Z346
GB2900.25
GB2900.35
Explosion-proof electrical apparatus for explosive atmospheres
General requirements
Explosion-proof electrical apparatus for explosive atmospheres Spark-free electrical apparatus "n" motor housing protection classification
Motor cooling method
Motor structure and installation type code
Motor dimensions and tolerances Motors with frame size 36 to 400 and flange number FF55 to FF1080 or FT55 to FT1080 Basic technical requirements for rotating motors
Basic environmental test procedures for electrical and electronic products Test methods for three-phase asynchronous motorsbZxz.net
Determination methods and limits for noise of rotating motors
Noise of rotating motors Determination methods and limits
Determination methods and limits of vibration of rotating electrical machines
Test Db: Alternating damp heat test method
Noise engineering determination method
Vibration determination method
Determination methods and limits of vibration of rotating electrical machines
Vibration limits
Test methods for inter-turn insulation of loose-embedded windings of AC low-voltage motors Inter-turn insulation test limits of loose-embedded windings of AC low-voltage motors Packaging, storage and transportation graphic symbols
Electrical terms and terminology Motor
Electrical terms and terminology
Types, basic parameters and dimensions
Explosion-proof electrical equipment for explosive atmospheres
3.1 The protection level of the main housing of the motor is IP54 or IP55, and the junction box is IP55 (see GB4942.1). 3.2 The cooling method of the motor is IC0141 (see GB1993). 3.3 The structure and installation type of the motor are IMB3, IMB5, IMB6, IMB7, IMB8, IMB35, IMV1, IMV3, IMV5IMV6, IMV15 and IMV36 (see GB997), and are manufactured in accordance with the provisions of Table 1. 3.4 The motor rating is a continuous rating based on the continuous duty system (S1). 3.5 The rated frequency of the motor is 50Hz, and the rated voltage is 220, 380, 660, 220/380, 380/660V. Approved by the Ministry of Machinery and Electronics Industry on June 28, 1991 and implemented on July 1, 1992
Frame size
80~160
180~225
250~315
The motor should be manufactured according to the following rated power
JB/T5337-1991
Installation structure type and its code (IM)
B3, B5, B6, B7, B8, B35, V1 , V3, V5, V6, V15, V36
B3, BS, B35, V1
B3, B35.V1
4.0, 5.5, 7.5, 11, 15, 18.5, 22, 30, 0.55, 0.75, 1.1, 1.5, 2.2, 3.0, 437, 45, 55, 75, 90,
110, 132,
160,
200kw.
3.7 The corresponding relationship between the motor frame number and the speed and power should be in accordance with the provisions of Table 2. Table
Note: The numbers 1 and 2 after S, L, and M represent different powers under the same frame number and speed. 3.8
Motor dimensions and tolerances
The installation dimensions and tolerances of the motor shall comply with the requirements of Tables 3 to 6, and the overall dimensions shall not be greater than those specified in Tables 3 to 6. (See Figures 1 to 4)
JB/T53371991
JB/T 5337I991
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The shaft extension key dimensions and tolerances of the motors with R and A##R shall conform to the requirements of Table 7. Table 7 Shaft extension diameter 20_. VW225 YW318 11~. .10
JB/T5337-1991
The dimensions and tolerances of the motor shaft extension key shall comply with the provisions of Table 7. Table 7
Shaft extension diameter
The radial runout tolerance at half the shaft extension length shall comply with the provisions of Table 8. Table 8
>30~50
>50~80
.0.030
.0.090
Runout tolerance
The radial runout tolerance of the flange stop to the motor axis and the end face runout tolerance of the flange mating surface to the motor axis shall comply with the provisions of Table 9.
Stop diameter
130~230
>230~450
>450~680
The parallelism tolerance of the motor axis to the base support surface shall conform to the provisions of Table 10. 10
80~250
>250~315
The flatness tolerance of the supporting surface of the motor foot shall comply with the provisions of Table 11.
The maximum size in AB or BB
>100~160
>160~250
>250~400
>400~630
>630~1000
AB is the distance between the outer edges of the motor foot (end view) BB is the distance between the outer edges of the motor foot (side view) JB/T5337-1991
The symmetry tolerance of the motor shaft extension keyway to the center line shall comply with the provisions of Table 12. 12
>10~18
>18~30
Technical requirements
Flatness tolerance
The motor shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.2
The motor shall be able to operate at rated values ​​under the following altitudes, ambient air temperatures and ambient air relative humidity conditions. Altitude shall not exceed 1000m.
The maximum ambient air temperature varies with the seasons, but shall not exceed 40℃.
If the motor is specified to be used at an altitude exceeding 1000m or the maximum ambient air temperature is higher or lower than 40℃, the provisions of GB755 shall be followed. The minimum ambient air temperature is -15℃.
The average maximum relative humidity of the most significant month is 90%, and the average minimum temperature of the month is not higher than 25℃. The deviation of the power supply voltage and frequency from the rated value during the operation of the motor shall be in accordance with the provisions of GB755. When the voltage and frequency are rated, the guaranteed values ​​of its efficiency and power factor shall comply with the provisions of Table 13. The power, power factor and efficiency of the motor are determined by the measured stray loss analysis method. 4.5 Under rated voltage,
JB/T5337-1991
Continued Table 13
Power factor
The guaranteed value of the ratio of the motor's stall torque to the rated torque shall comply with the provisions of Table 14. Table 14
Stuck torque/rated torque
JB/T5337-1991
Continued Table 14
Stuck torque/rated torque
Under rated voltage, the guaranteed value of the ratio of the minimum torque to the rated torque during the motor's starting process shall not be less than the provisions of Table 15Table 15
Minimum torque/rated torque
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