JB/T 6450-1992 Technical Specifications for YCTD Series Electromagnetic Speed Regulating Motors (Frame Size 100～315)
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T6450-1992
Technical conditions for YCTD series electromagnetic speed regulating motors (frame size 100~315)
Published on August 6, 1992
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on January 1, 1993
Mechanical Industry Standard of the People's Republic of China
Technical conditions for YCTD series electromagnetic speed regulating motors (frame size 100~315)
Subject content and scope of application
JB/T 6450-1992
This standard specifies the type, parameters and dimensions, technical requirements, test methods, inspection rules, and marking and packaging requirements of YCTD series electromagnetic speed regulating motors (hereinafter referred to as speed regulating motors). This standard applies to speed regulating motors with frame sizes of 100~315. All series of speed regulating motors derived from this series of speed regulating motors can also be implemented as a reference.
2 Reference standards
Basic technical requirements for rotating electrical machines
GB1993
GB4772
Motor housing protection classification
Motor cooling method
Motor structure and installation type code
Motor dimensions and tolerances
GB10069
GB10068
GB1032
Determination method and limit of noise for rotating electrical machines
Determination method and limit of vibration for rotating electrical machines
Test method for three-phase asynchronous motors
Packaging, storage and transportation graphic symbols||t t||JB/Z231
Basic environmental test procedures for electrical and electronic products Alternating damp heat test method
Regulations for shape and position tolerance marking and detection of main parts of small asynchronous motors ZBK22007
JB3085
Technical conditions for Y series (IP44) three-phase asynchronous motors (frame size 80~315) Specifications for product packaging and transportation of electric drive control stations equipped with electrical devices Type, basic parameters and dimensions
3.1 The speed regulating motor consists of an electromagnetic slip clutch (hereinafter referred to as the clutch), a traction motor and an electromagnetic speed regulating controller (hereinafter referred to as the controller). Its structural form is a combined structure in which the traction motor is directly installed on the clutch base by means of the flange end cover stop, and the installation type is IMB3 (see GB997).
3.2 The housing protection level of the speed regulating motor is IP21 (see GB4942.1). 3.3 The cooling method of the speed regulating motor is IC01 (see GB1993). 3.4 Rated speed regulating motor
When driving constant torque load, the nominal power is 11kW and below, and it is S1 in the rated speed range; the nominal power is 15kW to 30kW, and it is S1 in the 3:1 speed range; when the speed range exceeds 3:1, short-term constant torque operation is allowed, and the operation time is specified by the manufacturer in the sample. 37~90kW is mainly used for driving decreasing torque load. When driving decreasing torque (T=f(n), A≥2) load, the whole series is S1. 3.5 The rated frequency of the speed regulating motor is 50Hz, the rated voltage of the driving motor is 380V, and the controller is 220V. Approved by the Ministry of Machinery and Electronics Industry on August 6, 1992 and implemented on January 1, 1993
JB/T6450-1992
3.6 The traction motor of the speed-adjusting motor is a B5-type 4-pole Y-series three-phase asynchronous motor with special requirements for installation dimensions. Its various electrical properties shall comply with the provisions of ZBK22007, or a special matching motor shall be used. 3.7 The tachometer generator used for the speed-adjusting motor shall be able to output corresponding feedback voltage to the controller as the speed changes. When the speed is 1000r/min, its output voltage shall not be less than 20V and not more than 35V. 3.8 The speed-adjusting motor shall be able to adjust the speed continuously and smoothly within the rated voltage, rated frequency and rated speed range, and its speed change rate shall not exceed the provisions of Table 1.
Accuracy level
Rate of speed change
In the table: Rate of speed change is represented by 8
Where: 10—
Measure the speed of the motor at 10% of the rated torque, any speed within the rated speed regulation range (under a given signal of the controller). The speed of the speed regulating motor at rated torque (under the same given signal corresponding to n1c of the controller). The rated maximum speed of the speed regulating motor at rated torque, the speed regulation accuracy is represented by
Where: numas
Nemax +Nenin
×100%
Continuously measure several speeds n at an interval of 10 minutes within the specified operating time: The maximum value among them: Continuously measure several speeds n at an interval of 10 minutes within the specified operating time, the minimum value among them: The average speed within time t: t is 1s or 1.25s. 3.10
For the type, basic parameters and dimensions of the controller, please refer to Appendix A. 3.11 The correspondence between the frame number of the speed regulating motor and the nominal power, rated torque, and rated speed range shall comply with the provisions of Table 2. (2)
The frame number is represented by the center height and the number 4 and letters A and BC after the center height. The number 4 and the letters A, B, and C represent the same center height, with 4 poles and different powers of the motor, so that it has different nominal powers. The nominal power of the speed regulating motor is represented by the rated power of the traction motor. The output power of the speed regulating motor can be calculated by the following formula: Output torque (N·n) X output speed (r/min) Output power (kW) =
2 Dimensions of the speed regulating motor
The installation dimensions and external dimensions of the speed regulating motor shall comply with the provisions of Table 3. 3.12.1
The dimensions and tolerances of the shaft extension key of the speed regulating motor shall comply with the provisions of Table 4. (3)
......
100-4A
100-48
112-4A
112-4B
132-4A
132-4B
160-4A
160-4B||tt| |180-4A
180-4A
200-4A
200-4BwwW.bzxz.Net
225-4A
250-4A
250-4B
280-4A
315-4A
315-4B
Power
JB/T 6450-1992
Rated torque
Rated speed range
1250~100
1300~100
1350100
1375~100
1375~250
1400~250
The speed regulating motor is installed with torque. The installation image and overall dimensions are determined by the factory. Table:
5.10 stipulates that
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Shaft extension diameter
Shaft extension diameter
JB/T6450-1992
18-1043
The radial circle runout tolerance at half the degree shall comply with the provisions of Table 5. Shaft extension length of speed regulating motor
Shaft extension diameter
Diameter circle runout tolerance
>30~50
20-8a52
>50~75
The tolerance of the parallelism of the axis of the speed regulating motor to the foot support surface and the flatness tolerance of the foot support surface shall comply with the provisions of Table 6. Table 6
100~160
200~250
Parallelism tolerance
The symmetry tolerance of the keyway on the shaft extension of the speed-adjustable motor shall comply with the provisions of Table 7. Table 7
Technical requirements
Flatness tolerance
Size tolerance
Speed-adjustable motors 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 speed-adjustable motor shall be able to operate at rated speed under the following environmental conditions. Less dust, no ferromagnetic dust, no corrosive metal, insulation-damaging and explosive gases, 4.2.1
The altitude shall not exceed 1000m.
The maximum temperature of the ambient air varies with the seasons, but shall not exceed 40℃. The minimum temperature of the ambient air: -15℃ for clutch and traction motor, -10℃ for controller. 4.2.4
JB/T64501992
4.2.5 Relative humidity: For clutch and traction motor, the average maximum relative humidity is 90% in the wettest month. Meanwhile, the average minimum temperature in this month shall not be higher than 25℃; for the controller, the maximum temperature shall not exceed 50% when it is 40℃. At lower temperatures, higher relative humidity is allowed, such as 90% when it is below 20℃.
4.2.6 Allowable vibration conditions at the controller installation: The maximum vibration acceleration shall not exceed 0.5g when the vibration rate range is 10~150Hz. 43 During the operation of the speed-adjusting motor, the difference between the power supply voltage and the rated value shall be within the specified range of GB755, and the output torque shall still comply with the provisions of Table 2.
When the speed-adjusting motor is running under rated conditions, the temperature rise and allowable temperature limit of each test part are shown in Table 8. 4.4 Insulation level of clutch excitation winding Measurement method Resistance method Point thermometer method or thermocouple method Measurement location According to the highest value of the test point specified in Article 5.11, the temperature of the clutch armature should not reach a value that may cause damage to itself or adjacent insulation or other materials under any circumstances. Note: If the sea level or ambient temperature of the test site is different from that specified in Article 4.2, the temperature rise and temperature limit shall be amended in accordance with the provisions of (B755. 4.5 When the speed regulating motor is in normal operation in hot state, the maximum value of its clutch excitation voltage shall not exceed 90V. The speed regulating motor shall be able to withstand an over-torque test of 1.6 times the rated torque at rated voltage and rated frequency after the high-speed temperature rise test for 15 seconds without sudden speed change, stalling or harmful deformation. At this time, the speed is not assessed, and the speed regulating motor can operate normally when it returns to the rated state.
4.7 The guaranteed value of the ratio of the stall torque to the rated torque of the speed regulating motor at rated voltage, rated frequency and cold state shall comply with the provisions of Table 9, with a tolerance of 15%.
Nominal power, kw
Stalling torque/rated torque
The speed regulating motor shall be able to withstand an increase in speed to 120% of its rated maximum speed for 2 minutes without causing harmful deformation under no-load conditions.
4.9The static residual torque value of the clutch part of the speed regulating motor shall not be greater than 3% of the rated torque. The insulation resistance of the excitation winding and the tachogenerator winding of the clutch part of the speed regulating motor shall not be less than 4.10
0.25Mo in the hot state or after the temperature rise test.
The excitation winding and the tachogenerator winding of the clutch part of the speed regulating motor shall be able to withstand a rain voltage test lasting 1 minute without breakdown. The frequency of the test voltage is 50Hz and should be as positive as possible. Sine wave. The effective value of the voltage is 1500V for the excitation winding and 700V for the tachogenerator winding.
When the speed motor is unloaded, the effective value of the maximum vibration speed that may be generated in the range of 600r/min to the rated maximum speed should be greater than the provisions of Table 10.
Effective value of the speed
100~132
160~225
250~315
3When the speed motor is unloaded, within the rated speed range, at the speed that produces the maximum noise, the measured A-weighted sound level of the noise level 4.13
value should not exceed the provisions of Table 11, and the tolerance of the noise value is +3dB(A). 6
Power, kw
|Sound power level
JB/T6450-1992
After the clutch excitation winding and the stator winding of the tachogenerator of the speed regulating motor are tested for 6 cycles according to the 40C alternating damp heat test method specified in GB2423.4, the insulation resistance value of the clutch excitation winding and the tachogenerator winding shall not be less than 0.25MQ, and can withstand the voltage resistance test surface specified in Article 4.11 without breakdown, but the effective value of the voltage is 1275V for the excitation winding and 600V for the tachogenerator winding.
4.15 Technical requirements for controllers are shown in Appendix A. Inspection rules and test methods
Speed regulating motors must pass the inspection before they can leave the factory, and should be accompanied by a product certificate. 5.2
The speed regulating motor shall be subject to the following inspection items:
Mechanical inspection (according to the provisions of Article 5.6.5.7 of this standard); Determination of insulation resistance between the excitation winding and the tachogenerator winding and the casing (the cold insulation resistance can be measured during the inspection test, but the hot insulation resistance should be ensured not to be lower than the specified value in Article 4.10 of this standard); c.
Determination of DC resistance value of the excitation winding and the tachogenerator winding in the actual cold state; Insulation withstand voltage test between the excitation winding and the tachogenerator winding and the casing (performed in accordance with Article 4.11 of this standard); When the speed regulating motor is no-load and the speed is 1000r/min, the output voltage of the tachogenerator should be not less than 20V and not more than 35V; The excitation current of the speed regulating motor can be measured at the rated maximum speed and rated torque, or it can be measured in the stalled state, at which time the traction motor current should reach the rated value. The measured excitation current value shall meet the requirements of the test specification; g.
Inspection test of the controller.
Type test must be carried out in any of the following situations: 5.3
After the identification and finalization, the manufacturer's first trial production or small-scale trial production; when the design or process changes of the speed regulating motor are sufficient to cause changes in certain performance and parameters; when the inspection test results and the previous type test results have an unacceptable deviation; regular sampling test of batch production, at least once every two years. The type test items of speed regulating motor include: all items of inspection test; determination of speed change rate; determination of steady speed accuracy; determination of open-loop mechanical characteristics (only when the structure is finalized); clutch temperature rise test (internal bearing temperature is only carried out when the structure is finalized); determination of clutch stall torque guarantee value; determination of clutch static residual torque value; hot overspeed test; hot short-time overtorque test; vibration measurement; noise measurement; controller type test. When conducting type test. The withstand voltage test of clutch excitation winding and tachometer generator winding to the casing should be carried out in hot state after short-time overtorque test of 5.5, overspeed test and winding insulation resistance measurement. The mechanical inspection items of speed regulating motors include:
JB/T 6450—1992
Rotation inspection: When the speed regulating motor is running, the bearing should be stable and light without stagnation; a.
Appearance inspection: The assembly is complete and correct, the surface paint should be dry and complete, without stains, damage, cracks, etc. b.
Installation size and tolerance inspection should comply with the provisions of Articles 3.12.1 and 3.12.2; e.
Parallelism inspection of the axis of the speed regulating motor to the foot support surface should comply with the provisions of Article 3.12.4. The inspection of the flatness tolerance of the foot support surface should comply with the provisions of Article 3.12.4. The radial runout inspection of the shaft extension of the speed regulating motor should comply with the provisions of Article 3.12.3. The inspection of the symmetry of the shaft extension keyway shall comply with the provisions of Article 3.12.5. The flatness of the foot support surface and the symmetry of the keyway are allowed to be inspected on the parts.
5.7 During the inspection test, a and b in Article 5.6 must be inspected for each unit; c and d can be inspected randomly, and the inspection method is determined by the manufacturer. 5.8 The number of test pieces for the type test shall not be less than 2 units. If unqualified products are found during the test, the batch of speed-controlled motors must be inspected one by one. 5.9 Determination of speed change rate: When the speed-controlled motor is in the hot state after the temperature rise test at the rated maximum speed nmx and the rated minimum speed nmin, its mechanical characteristics are measured separately under the closed-loop control state. In the above two cases, the load torque is changed from the rated value to 10% of the rated value, and the corresponding speed value is recorded. At least three points are measured and the corresponding two closed-loop mechanical characteristic curves are drawn. The speed change rate shall be checked in accordance with the provisions of Article 3.8 of this standard.
5.10 Determination of steady speed accuracy: After the speed regulating motor runs for 20 minutes at rated voltage, rated frequency, rated maximum speed and 50% rated output torque, the power supply voltage of its controller changes from 198V to 242V (the power supply voltage and frequency of the traction motor remain rated at this time). Within 60 minutes, several values of ne are continuously measured every 10 minutes, and the maximum value nita and the minimum value nmin are taken to calculate the steady speed accuracy 32, which shall comply with the provisions of Article 3.9 of this standard. 5.11 The temperature rise test shall be carried out at rated voltage, rated frequency and closed-loop control, and the test results shall comply with 4.4. The test method is as follows:
For speed regulating motors with a nominal power of 11kW or less, at rated torque, the test is conducted at two speeds, neux and nsin; for motors with a nominal power of 15 to 30kW, at rated torque, the test is conducted at two speeds, nm and nm; for motors with a power of 37kW or more, the test is conducted at two states, nr, rated torque and 4/9 rated torque.
Drag motor nameplate speed,
5.12 Determination of open-loop mechanical characteristics: In the hot state after the high-speed temperature rise test, the torque-speed characteristics of the clutch in the speed range from nm to naia at different excitation currents are measured. With the excitation current at n and rated torque as 100%, the torque-speed characteristics at 50%, 75%, 100%, and 120% excitation currents are measured respectively, and the T=f(n) open-loop mechanical characteristic curve is plotted. 5.13 After the high-speed temperature rise test, a hot short-term overtorque test is conducted. Under the closed-loop control of rated voltage, rated frequency and rated maximum speed, gradually increase the load torque to 1.6 times the rated torque value for 15 seconds, which shall comply with the provisions of Article 4.6 of this standard. 5.14 The test specified in Article 5.4 of this standard shall be carried out as follows: After the hot short-term over-torque test, the overspeed test shall be carried out. When the speed regulating motor is running at no-load, increase the speed of the traction motor and gradually increase the excitation current. When the output speed reaches 120% of the rated maximum speed, the operation lasts for 2 minutes, which shall comply with the requirements of Article 4.8 of this standard. 5.15 Determination of the guaranteed value of the stall torque of the speed regulating motor: When the traction motor is at rated voltage, rated frequency, and the clutch is in the cold stall state, use an adjustable DC power supply to gradually increase the excitation current so that the stable value of the stall torque reaches the provisions of Article 4.7 of this standard. At this time, the excitation voltage should not be greater than 90V.
5.16 Determination of static residual torque: After the speed regulating motor is instantaneously strongly excited in the cold state (excitation voltage is 90V), the clutch stall torque value under no excitation shall be measured, which shall comply with the provisions of Article 4.9 of this standard. 5.17 The inspections specified in c and d of Article 5.6 of this standard shall be carried out in accordance with the provisions of GB4772 and JB/Z231. 5.18 j of Article 5.4 of this standard shall be carried out in accordance with the provisions of GB10068, and the distribution of test points shall be in accordance with Figure 1; k of Article 5.4 shall be carried out in accordance with the provisions of GB10069.
JB/T 6450—1992
9 The test of the protection level of the speed regulating motor housing shall be carried out in accordance with the provisions of GB4942.1. The 40C alternating damp heat test shall be carried out in accordance with the provisions of GB2423.4. 5.19
The enclosure protection level test and 40℃ 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 tests specified in Article 5.2 b and c of this standard shall be carried out in accordance with the provisions of GB1032, and Article 5.4 1 shall be carried out in accordance with the provisions of Appendix A.
The nameplate material and the engraving method of the text and data on the nameplate shall ensure that the handwriting is not easily erased during the entire service period of the speed regulating motor. The nameplate should be fixed on the top of the clutch base (the controller nameplate is ordered separately), and the following items should be marked: a.
Product name;
Product model;
Rated torque;
Speed regulation range;
Excitation voltage;
Excitation current;
Insulation level;
Noise limit;
Standard number:
Load nature (nameplate can be ordered separately),
Factory number;
Factory year and month;
Manufacturer name;
Weight;
Number of phases of tachogenerator and voltage insulation level at 1000r/min (this item can also be stated in the product sample and maintenance instructions or on a separate nameplate);
Enclosure protection level.
The nameplate of the controller shall indicate the following items
Manufacturer name,
Model;
Power supply voltage:
Output voltage, current:
Factory number:
Year and month of production.
Outlet marking of speed motor
JB/T6450-1992
Tachometer generator: single-phase U, V; three-phase U, V, W; a.
Field winding: F1, F2
When the speed motor leaves the factory, each motor shall be accompanied by a shaft extension key, operation and maintenance instructions, product certificate and packing list. The shaft extension chain of the speed motor shall be tied to the shaft extension, and the shaft extension and key surface shall be protected against rust. The packaging of the speed motor shall be able to avoid moisture and damage during transportation, and the transportation and storage of the controller shall comply with the provisions of JB3085. The words and marks on the outer wall of the packing box should be clear and neat, and the contents are as follows: a.
Shipping station (port) and manufacturer name;
Receiving station (port) and receiving unit name,
Product name, model and packing date;
Net weight and gross weight of the speed regulating motor;
Outer dimensions of the packing box;
The appropriate position of the packing box should be marked with words or graphic signs such as "Handle with care", "Prevent moisture", "Upward", etc., and the graphic signs should comply with the provisions of GB191.
9If the user uses and stores the speed regulating motor correctly according to the provisions of the operation and maintenance instructions, the manufacturer shall ensure that the speed regulating motor can operate well within one year of use or within a storage period of no more than two years from the date of shipment from the manufacturer. If the speed regulating motor is damaged or cannot operate normally due to poor manufacturing quality within this specified time, the manufacturer shall repair, replace parts or replace the entire speed regulating motor for the user free of charge.
Product name;
Product model;
Rated torque;
Speed regulation range;
Excitation voltage;
Excitation current;
Insulation level;
Noise limit;
Standard number:
Load nature (a separate nameplate is allowed),
Factory number;
Factory year and month;
Manufacturer name;
Weight;
Number of phases of tachogenerator and voltage insulation level at 1000r/min (this item can also be stated in the product sample and maintenance instructions or a separate nameplate can be ordered);
Enclosure protection level.
The nameplate of the controller shall indicate the following items
Manufacturer name,
Model;
Power supply voltage:
Output voltage, current:
Factory number:
Year and month of production.
Outlet marking of speed motor
JB/T6450-1992
Tachometer generator: single-phase U, V; three-phase U, V, W; a.
Field winding: F1, F2
When the speed motor leaves the factory, each motor shall be accompanied by a shaft extension key, operation and maintenance instructions, product certificate and packing list. The shaft extension chain of the speed motor shall be tied to the shaft extension, and the shaft extension and key surface shall be protected against rust. The packaging of the speed motor shall be able to avoid moisture and damage during transportation, and the transportation and storage of the controller shall comply with the provisions of JB3085. The words and marks on the outer wall of the packing box should be clear and neat, and the contents are as follows: a.
Shipping station (port) and manufacturer name;
Receiving station (port) and receiving unit name,
Product name, model and packing date;
Net weight and gross weight of the speed regulating motor;
Outer dimensions of the packing box;
The appropriate position of the packing box should be marked with words or graphic signs such as "Handle with care", "Prevent moisture", "Upward", etc., and the graphic signs should comply with the provisions of GB191.
9If the user uses and stores the speed regulating motor correctly according to the provisions of the operation and maintenance instructions, the manufacturer shall ensure that the speed regulating motor can operate well within one year of use or within a storage period of no more than two years from the date of shipment from the manufacturer. If the speed regulating motor is damaged or cannot operate normally due to poor manufacturing quality within this specified time, the manufacturer shall repair, replace parts or replace the entire speed regulating motor for the user free of charge.
Product name;
Product model;
Rated torque;
Speed regulation range;
Excitation voltage;
Excitation current;
Insulation level;
Noise limit;
Standard number:
Load nature (a separate nameplate is allowed),
Factory number;
Factory year and month;
Manufacturer name;
Weight;
Number of phases of tachogenerator and voltage insulation level at 1000r/min (this item can also be stated in the product sample and maintenance instructions or a separate nameplate can be ordered);
Enclosure protection level.
The nameplate of the controller shall indicate the following items
Manufacturer name,
Model;
Power supply voltage:
Output voltage, current:
Factory number:
Year and month of production.
Outlet marking of speed motor
JB/T6450-1992
Tachometer generator: single-phase U, V; three-phase U, V, W; a.
Excitation winding: F1, F2
When the speed motor leaves the factory, each motor shall be accompanied by a shaft extension key, operation and maintenance instructions, product certificate and packing list. The shaft extension chain of the speed motor shall be tied to the shaft extension, and the shaft extension and key surface shall be protected against rust. The packaging of the speed motor shall be able to avoid moisture and damage during transportation, and the transportation and storage of the controller shall comply with the provisions of JB3085. The words and marks on the outer wall of the packing box should be clear and neat, and the contents are as follows: a.
Shipping station (port) and manufacturer name;
Receiving station (port) and receiving unit name,
Product name, model and packing date;
Net weight and gross weight of the speed regulating motor;
Outer dimensions of the packing box;
The appropriate position of the packing box should be marked with words or graphic signs such as "Handle with care", "Prevent moisture", "Upward", etc., and the graphic signs should comply with the provisions of GB191.
9If the user uses and stores the speed regulating motor correctly according to the provisions of the operation and maintenance instructions, the manufacturer shall ensure that the speed regulating motor can operate well within one year of use or within a storage period of no more than two years from the date of shipment from the manufacturer. If the speed regulating motor is damaged or cannot operate normally due to poor manufacturing quality within this specified time, the manufacturer shall repair, replace parts or replace the entire speed regulating motor for the user free of charge.
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