JB/T 7588-1994 Technical requirements for YL series dual-value capacitor single-phase asynchronous motors (frame sizes 80 to 132)
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T7588www.bzxz.net
1994-12-09
Art Hub 80
Jia Kui Pole
1995-06-01Small Lock
Chicken Cheek Crab Kui Lu Wa Art
Addiction Net Art Cotton Hall 80
1 Subject Content and Scope of Application
JB/T75881994
This standard specifies the type, basic parameters and dimensions, technical requirements, test methods and inspection rules, and marking and packaging requirements of YL series dual-value capacitor single-phase asynchronous motors. This standard applies to YL series dual-value capacitor single-phase asynchronous motors (frame number 80132) (hereinafter referred to as motors). All kinds of motors derived from this motor can also be implemented as a reference. 2 Reference standards
GB 4942. 1
GB/T 1993
GB 4772. 1
GB10069
GB10068
GB9651
JB/Z346
JB/Z294
GB 12665
Basic technical requirements for rotating motors
Motor housing protection classification
Motor cooling method
Motor structure and installation type code
Motor dimensions and tolerances Motors with frame size 36~400 and flange number FF55~FF1080 or FT55~FT1080 Determination method and limit of noise of rotating motors
Determination method and limit of vibration of rotating motors
Test method of single-phase asynchronous motors
Packaging, storage and transportation graphic symbols
Test limit of insulation between voltages of AC low-voltage motors with loose-embedded windings Test method of insulation between voltages of AC low-voltage motors with loose-embedded windings Requirements for damp heat test of motors under normal environmental conditions 3 Types, basic parameters and dimensions
3.1 The housing protection grade of the motor is IP44 (see GB4942.1). 3.2 The cooling method of the motor is [C0141 (see GB/T1993). 3.3 The structure and installation type of the motor are IMB3, IMB5, IMB35 (see GB997). 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 220V. 3.6 The motor shall be manufactured according to the following rated powers: 0.55, 0.75, 1.1, 1.5, 2.2, 3, 3.7, 5.5 kW. The corresponding relationship between the motor frame number, speed and power shall be in accordance with the provisions of Table 1. 3.7
1994-12-09
1995-06-01
JB/T 7588
Same speed mn
Note: The numbers 1 and 2 after S, M and L represent different powers under the same frame and speed. 38 Motor Dimensions and Tolerances
The installation dimensions and tolerances of the motor shall comply with the provisions of Tables 2 to 4. The overall dimensions shall not be greater than those specified in Tables 2 and 1. 2
Note: 1) The position accuracy of K hole is based on the extended object line
— 0.004
+0.002!
JB/T7588
2 Installation dimensions and tolerances of motors with base and no flange on the end cover
2)GE=DG, the limit error of GE is (+9.18) for machine number Bo, and +0 28 for others.
Position
External dimensions
Machine base number Flange number
JB/T7588
Table 3 Installation dimensions and tolerances of motors with no base and flange on the end cover
215180
265230
Certification: 1) GE=DG, the limit error of GE is ≥ for machine base number 80<+0.18), and +9. 28)2) The dimension is the maximum limit value,
3) K is the clearance from the flange mating surface to the shaft washer. 4) The position tolerance of S hole is based on the axis of the shaft, +0.01#
Position
Machine base number
Wind base technology base technology vibration limit type
Size loss size
2.41252.5100
1808014063
1909514079
21610814089
Characteristics: 1) The difference between KT and S T. is based on the fine line. 2) GE=DG, the gain of GE is 60(+g.18), H, and is (+β. 25),3)P ruler is the most limited.
4) For convex fit to teacher treatment,
JB/T7588
Table 4 Milk warehouse foot, end cover with flange motor k
+g-430
Dependence
State setting depth
Positive multiple difference
165130
215180
Yingxiang setting medical material
R Bo food
252308.8180
3.8.2 Shaft extension diameter 3.8.3 The radial runout tolerance at half the length of the shaft extension shall comply with the provisions of Table 6 Table 6 Shaft extension diameter > 30~50 Radial runout tolerance 3.8.4 Radial runout tolerance of the convex stop to the motor axis and flange matching The tolerance of the end face circle of the joint surface to the axis of the motor shall comply with the provisions of Table 7.
The parallelism tolerance of the upper edge of the west edge
130~230
>830～450
The parallelism tolerance of the motor axis to the foot support surface shall comply with the provisions of Table B, Table 8
80~133
The surface tolerance of the motor foot support surface shall comply with the provisions of Table 9. Table 9
The maximum dimension AB of the height of the distance from the outer edge of the foot100~160
> 180~250
>250～400
The symmetry tolerance of the key on the motor shaft extension shall comply with the provisions of Table 10. Table 10
Technical requirements
National vibration test
Flatness tolerance
Symmetry tolerance
The motor shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. Under the following altitude, ambient air temperature and ambient air relative humidity conditions, the motor shall be able to operate at rated speed. 4. 2
4.2.1 The altitude shall not exceed 1000m.
JB/T7588
The maximum ambient air temperature varies with the seasons, but shall not exceed 10℃. 4.2.2
Note: If the motor is specified to be used at an altitude exceeding 1000m or the ambient air temperature is higher or lower than 40℃, it shall comply with the provisions of GB755. 4.2.3 The lowest ambient air temperature is -15℃, 4.2.4 The monthly average maximum relative humidity is 90%, and the monthly average minimum temperature is not higher than 25℃. 4.3 The deviation of the power supply voltage and rated frequency during the operation of the motor shall be in accordance with the provisions of GB755. The guaranteed values of the efficiency and power factor of the motor shall comply with the provisions of Table 11 when the power, voltage and frequency are rated. 4.4
Note: The efficiency is measured by direct measurement.
Power factor
Under rated voltage, the guaranteed value of the ratio of the motor's stall torque to the rated torque shall comply with the provisions of Table 12. 4.5
Synchronous rotation
Stalling torque/rated torque
4.6 Under rated voltage, the guaranteed value of the minimum torque during the motor starting process shall not be less than the rated torque. 4.7 Under rated voltage, the guaranteed value of the ratio of the motor's maximum torque to the rated torque is 1.6 times. 4.8 Under rated voltage, the guaranteed value of the ratio of the motor's locked-rotor current to the rated current shall comply with the provisions of Table 13, and the tolerance of the guaranteed value of the motor's electrical performance shall comply with the provisions of Table 14. 1500
The motor adopts Class B insulation. When the altitude and ambient air temperature meet the requirements of Article 4.2, the temperature rise limit of the motor winding (resistance method) is BOK: The allowable temperature of the bearing (thermometer method) shall not exceed 95℃7
JB/T7588
If the altitude or ambient air temperature of the test ride location is different from 4.If the provisions of Articles 2 are different, the temperature rise limit should be revised according to the provisions of GB755. Table 13
Synchronous speed m
Locked rotor current/rated current
Electrical performance name
Efficiency
Power factor cOz
Locked rotor torque
Minimum torque
Maximum torque
Locked rotor current
- 0, 15(1 -m)
—(1—es good)/6, minimum is—. 02
15% of guaranteed value
15% of guaranteed value
·10% of guaranteed value
+20% of guaranteed value
4.11 The motor should be able to withstand the maximum torque value specified in Article 4.7 (including tolerance) for 15s without sudden speed change, stalling and harmful deformation under hot state and gradually increasing torque. At this time, the voltage and frequency should be maintained at the rated value. 4.12
The motor shall be able to withstand an increase in speed to 120% of its rated value for 2 minutes without any harmful deformation under no-load conditions. The insulation resistance of the stator winding of the motor shall not be less than 1.0M in the thermal disturbance state or after the temperature rise test. 4.14 The stator winding of the motor shall be able to withstand a withstand voltage test for 1 minute without breakdown. The test voltage frequency is 50 Hz and is as sinusoidal as possible. The effective value of the voltage is 1500V. When inspecting and testing motors produced continuously on a conveyor belt, the test time may be shortened by 1s, and the effective value of the test voltage is 1800V.
4.15 The stator winding of the motor shall be able to withstand an insulation impulse withstand voltage test without breakdown. The impulse test voltage (peak value) is 1800V.
4.16 After the stator winding of the motor has been tested for six cycles according to the 40°C alternating damp heat test method specified in GB12665, the insulation resistance shall not be less than 0.22Mn, and it shall be able to withstand 85% of the test voltage specified in Article 4.14 for 1 minute without breakdown. 4.17 The effective value of the vibration velocity measured when the motor is no-load shall not exceed 1.8mm/5.4.18 The noise value of the A-weighted sound power level measured when the motor is no-load shall not exceed the value specified by the grade selected in Table 15 when ordering, and the tolerance of the noise value is +3dB(A). 4.19 During the inspection test of the motor, the no-load and locked-rotor current and loss shall be within a certain value range, which shall ensure that the motor performance complies with the provisions of Articles 4.4 to 4. of this standard. 4.20 During the starting and operation of the motor, the capacitor terminal voltage shall not exceed its maximum allowable voltage. 8
JB/T7588
4.21 The disconnecting speed of the starting switch during the starting process of the motor is 70% to 85% of the synchronous speed, and effective disconnection is guaranteed. Table 15
Synchronous speed
Sound power level
The outlet basin is located at the top of the motor. It can also be placed on the side according to user requirements. There should be a grounding screw in the outlet box of the motor, and A.22
A grounding mark should be set near the grounding screw. This mark should not be easily erased during the use of the motor. 4.23
When the motor is connected to the following figure, the motor should rotate clockwise when viewed from the shaft extension end. U
Inspection rules
Overdrive switch
Overdrive electric equipment
Each motor must be inspected and qualified before it can be shipped, and a product certificate should be attached. S.1
5.2 Each motor shall be inspected and tested. The inspection and test items include: mechanical inspection (according to the provisions of Articles 5.6 and 5.7 of this standard); 2
Controlled-switching capacitors; determination of insulation resistance between winding and housing and between windings (cold insulation resistance can be measured during inspection and test, but it should be ensured that the insulation resistance in hot state is not lower than the provisions of Article 4.13 of this standard); determination of DC resistance of stator winding in actual cold state: d.| |tt||Withstand voltage test;
Relay group inter-turn impulse withstand voltage test
Determination of no-load current and loss (no-load characteristic curve should be measured for type test)Determination of locked-rotor current and loss (locked-rotor characteristic curve should be measured for type test), Determination of the speed of the starting switch disconnection during starting transition: JB/T75881994
iDetermination of noise (according to the provisions of Article 5.7 of this standard)Determination of vibration (according to the provisions of Article 5.7 of this standard),j
5. 3 Type tests must be conducted in any of the following situations: when the motor is manufactured after identification and finalization; when the design or process of the motor is changed enough to cause certain characteristics and parameters to change; when the inspection test results and the previous type test results have an unacceptable deviation; the batch-produced motors are regularly tested, once a year. When the number of tests required is too large, the test interval can be appropriately extended, but at least once every two years. The type test items of the motor include: all items of the inspection test: the rise test: the determination of efficiency and power factor: short-term over-torque test; the determination of the maximum torque; the determination of the minimum torque during the starting process: overspeed test! The determination of the voltage at the capacitor terminal.
5.5 When conducting type tests, the withstand voltage test of the stator windings against the casing and each other should be carried out when the motor temperature is close to the operating temperature, and should be carried out after the insulation resistance test, overspeed test and short-time overtorque test of the stator windings. 5.6
The mechanical inspection items of the motor include:
Rotation inspection, when the motor rotates, it should be smooth and brisk without stagnation; appearance inspection, check whether the motor is assembled completely and correctly, and the surface of the motor is complete and uniform, without stains, damage, cracks, etc.;
c. Inspection of installation dimensions, external dimensions and key dimensions, the installation dimensions and external dimensions shall comply with the provisions of Article 3.B.1 of this standard, and the key dimensions shall comply with the provisions of Article 3.8.2 of this standard; d. Inspection of runout, parallelism and flatness of the foot support surface and key symmetry: the runout shall comply with the provisions of Articles 3.3, 3 and 3.8.4 of this standard. The parallelism and flatness of the foot support surface shall comply with the provisions of Articles 3.8.5 and 3.8.6 of this standard respectively. The key symmetry shall comply with the provisions of Article 3.8.7 of this standard. The parallelism and symmetry of the foot support surface can be checked on the parts. 5.7 During the inspection test, a and b of Article 5.6 of this standard must be checked for each unit, and i and j of Article 5.2 and c and d of Article 5.6 can be checked randomly. The inspection method shall be formulated by the manufacturer. 5.8 The inspection methods of Article 5.2 (except e, i, j) and Article 5.4 of the standard shall be carried out in accordance with CB955. The inspection of Article 6.2 shall be carried out in accordance with JB/Z294. i and i of Article 5.2 shall be carried out in accordance with GB10069.1 and GB10068.1. The inspection of the installation dimensions and tolerances specified in Article 5.5 shall be carried out in accordance with GB4772.1. 5.9 The test of the protection level of the motor housing and the alternating damp heat test can be carried out when the product structure is finalized or when there are major changes in the structure and process. The test method of the enclosure protection level is carried out in accordance with GB4942.1, and the alternating heat test is carried out in accordance with G312665. Marking, packaging and warranty period
The material of the nameplate and the method of engraving the data on the nameplate should ensure that the handwriting is not easy to wear and rust during the entire service period of the motor. 6.1
6.2 The nameplate should be fixed on the upper half of the motor base, and the items to be marked are as follows: a.
Manufacturer name:
Motor model:
Motor name!
Enclosure protection level (another nameplate is allowed), 10
Rated power;
Rated frequency
Rated voltage!
Rated speed,
Insulation grade,
Wiring method (separate separation is allowed);
Noise limit (according to the provisions of the order contract), manufacturer's year of production and product number,
Weight:
Capacitance and rated voltage
Standard number.
JB/T7588
When the nameplate must be reduced, items such as 1 and n may not be indicated. 1994
6.3 The wiring position of the motor terminal board should have the corresponding mark of the stator winding outlet, and ensure that its handwriting is not easily erased during the entire service life of the motor. The mark is in accordance with the provisions of Table 16. Table 16
Name of stator winding group
Main winding
Auxiliary winding
Outlet mark
6.4 The motor shaft extension key, maintenance instructions (at least two copies for a batch of motors of the same type for the same user) and product certificate should be provided to the user along with each motor.
6.5 The motor shaft extension key must be tied to the shaft, and the shaft extension and key surface must be rust-proof and protected. Flange-type motors must be rust-proof and protected on the flange processing surface. 6. The motor packaging should be able to ensure that under normal storage and transportation conditions, it will not be damaged by moisture and damage due to poor packaging within one year from the date of shipment.
6.7 The text and logo on the outer wall of the packaging box should be clear and neat, and the content is as follows:.
Shipping station and factory name,
Receiving station and receiving unit name
Motor model and product number:
Net weight of the motor and gross weight of the box. Box dimensions:
The appropriate position of the box should be marked with "Caution" and "Moisture-proof", and the graphics should comply with the provisions of GB191. B If the user uses and stores the motor correctly according to the provisions of the service and maintenance instructions, the manufacturer should ensure that the motor can operate well within the period of one year of use, or no more than two years from the date of shipment from the manufacturer. During this specified time, if the motor is damaged or cannot work normally due to poor manufacturing quality, the manufacturer should repair or replace parts or motors for the user free of charge. Additional notes:
This standard was proposed and coordinated by the Upstream Electrical Science Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Shanghai Electrical Science Research Institute of the Ministry of Machinery Industry and Yuejin Motor, and Kunming Electric Factory, Boshan Electric Factory, Wannan Electric Factory, Jinhua Teke Electric Factory, etc. participated in the drafting. The drafters of this standard are Wu Qitai, Qin Yaping, Zhu Haikun, Zheng Fakong, Xu Feng, and Wu Baohua. 11
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