JB/T 10445-2004 Technical Specifications for YR Series 10kV Wound Rotor Three-Phase Asynchronous Motors (Frame Size 450～630)
Some standard content:
ICS29.160.30
Machinery Industry Standard of the People's Republic of China
JB/T10445—2004
Specification for YR Series 1okV Three Phase Wound Rotor Induction Motors(Framenumbers450to630)
Published on February 10, 2004
Implementation on June 1, 2004
Published by the National Development and Reform Commission of the People's Republic of China Foreword
Normative reference documents,
Types, basic parameters and dimensionsWww.bzxZ.net
Technical requirements.
Inspection rules.
Marking, packaging and use period
JB/T10445--2004
This standard is formulated for the first time
JB/T10445-2004
This standard is written in accordance with the general standard format and rules for major categories of products, and complies with GB/T1.1-2000 "Guidelines for Standardization Work Part 1: Structure and Writing Rules for Standards" and GB/T1.2-2002 "Guidelines for Standardization Work Part 2: Methods for Determining the Contents of Normative Technical Requirements in Standards".
This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Rotating Electric Machines (SAC/TC26). This standard was drafted by Shanghai Electric Science Research Institute, Xiangtan Electric Machine Co., Ltd., Lanzhou Electric Machine Co., Ltd., Shandong Qilu Electric Machine Manufacturing Co., Ltd., and Zibo Traction Motor Group Co., Ltd. The main drafters of this standard are Kang Ping, Guo Xiaoling, Cao Wenliang, Zhang Zhonghai, and Lu Changrui. JB/T10445--2004
Technical conditions for YR series 10kV wound rotor three-phase asynchronous motors (frame size 450~630) 1 Scope
This standard specifies the types, basic parameters and dimensions, technical requirements, inspection rules, and marking and packaging requirements of YR series 10kV three-phase asynchronous motors.
This standard applies to YR series 10kV three-phase asynchronous motors (frame size 450~630) for general purposes (hereinafter referred to as motors). 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard. GB/191--2000 Pictorial symbols for packaging, storage and transportation (eqvISO780:1997) GB755--2000 Ratings and performance of rotating electrical machines (idtIEC60034-1:1996) GB/T997 Motor structure and installation type (IM code) (GB/T997--2003: IEC60034-7:1992, IDT) GB1032-1985 Test methods for three-phase asynchronous motors GB/T1993-1993 Cooling method for rotating electrical machines (eqvIEC60034-6:1991) GB1971—1980 Terminal marking and direction of rotation of electrical machines (eqvIEC60034-8:1972) GB/T4772.2—1999 Dimensions and output power classes of rotating electrical machines Part 2: Frame size 355~1000 and flange size 1180~2360 (idtIEC60072-2:1990)
GB/T4831—1984 Electrical machine production Product model compilation method GB/T4942.1-2001 Rotating motor housing protection classification (IP code) (idtIEC60034-5: 1991) GB10068--2000 Mechanical vibration of motors with a shaft center height of 56mm or more Vibration measurement, evaluation and limit values (idtIEC60034-14: 1996)
GB/T10069.1—1988 Rotating motor noise measurement method and limit value noise engineering measurement method (neq ISO1680-1:1986) GB14711—1993 General safety requirements for small and medium-sized rotating electrical machines (negIEC60034-1) JB/T10098--2000 Impact voltage withstand level of AC motor stator molded coil (idtIEC60034-15:1995) 3 Types, basic parameters and dimensions
3.1 The motor model consists of three parts: series code, specification code and environment code, arranged in sequence (see GBT4831) YR 4501—4-—
Example:
Environmental code
Specification code, indicating shaft center height 450mm, core length 1, 4 poles series code, indicating wound rotor asynchronous motor 3.2 The motor casing protection level is IP23 or IP44 (duct ventilation) (see GB/T4942.1). 3.3 The cooling method of the motor is ICOI, ICI1, IC21, IC31 (see GB/T1993). 3.4 The structure and installation type of the motor is IMB3 (see GB/T997): 3.5 The rating of the motor is a continuous rating based on the continuous working system (S1) 3.6 The rated frequency of the motor is 50Hz and the rated voltage is 10000V. 3.7 The corresponding relationship between the motor frame number and the speed and power should be in accordance with the provisions of Table 1. JB/T10445-2004
Frame number
3 Motor size and tolerance:
Synchronous speed r/min
The installation size and tolerance of the motor should comply with the provisions of Table 2, and the external dimensions should not be greater than those specified in Table 2. 3.8.1
TT enlargement
H450500
TT enlargement
H560~630
800±1.751120±1335
1000±2.10
±21d500
Installation dimensions and tolerances
Yanben size
1400 is the numerical value when the collector ring is on the outside of the bearing: 1600 is the numerical value when the collector ring is placed inside the bearing, 1600 is the numerical value when the collector ring is placed on the outside of the bearing: 1800 is the numerical value when the collector ring is placed inside the bearing. When a sliding bearing is used, the dimensional deviation does not include the axial moment. 3.8.2 The dimensions and tolerances of the motor shaft extension key shall comply with the provisions of Table 3. 3
Shaft diameter
Technical requirements
4.1 The motor shall be able to operate at rated speed under the following altitude, ambient air temperature and relative humidity conditions. 4.1.1 The altitude shall not exceed 1000m.
4.1.2 The maximum ambient air temperature shall vary with the seasons but shall not exceed +40℃. H
JB/T104452004
Dimensions
1300|105014752740
1420111017003020
1600120018503450
180013002050380
Note: 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°C, it shall be implemented in accordance with the provisions of GB755. 4.1.3 The minimum ambient air temperature is -15°C for motors using rolling bearings and 0°C for motors using sliding bearings. 3
JB/T10445--2004
The average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is not higher than +25°C. 4.1.4
4.2 The deviation of the power supply voltage and frequency from the rated value during the operation of the motor shall comply with the provisions of GB755. 4.3 When the power, voltage and frequency of the motor are rated, the guaranteed values of its efficiency and power factor shall comply with the provisions of Table 4: When the motor adopts sliding bearings, the allowable reduction value of its efficiency shall comply with the provisions of Table 5.
Synchronous speed
Power factor
Note: The efficiency is determined by the indirect method.
When determining the total loss of the motor. The user R loss of the winding should be converted to the value at the reference operating temperature of Class B insulation, and the stray loss is calculated as 0.5% of the rated input power. Table 5
Synchronous speed
Frame size
Permissible reduction value of efficiency
At rated voltage, the guaranteed value of the ratio of the maximum torque of the motor to the rated torque is 1.8 times. The tolerance of the guaranteed value of the motor electrical performance shall comply with the provisions of Table 6, 600
efficiency n
power factor cos
maximum torque
JB/T10445-2004
-0.10(tn)
(1-cOsV6 is at least -0.02
-10% of the guaranteed value
4.6 The motor adopts F-class insulation, and the temperature rise is assessed according to Class B. When the altitude and ambient air temperature meet the requirements of 4.1, the temperature rise limit of the motor stator winding (resistance method) and the temperature rise limit of the collector ring (thermometer method) shall not exceed 80K, and the allowable temperature of the bearing (thermometer method or embedded thermometer method) shall not exceed +95℃ for rolling bearings and +65℃ for sliding bearings (oil outlet temperature is not higher than +65℃). ) should not exceed +80℃ or as agreed.
4.7 The motor should be able to withstand an over-torque exceeding 60% of the rated torque for 15s in a hot state and with gradually increasing torque without a sudden change in speed or stalling, and the voltage and frequency should be maintained at the rated value. 4.8 The motor should be able to withstand an increase in speed to 120% of its rated value for 2 minutes under no-load conditions without harmful deformation. 4.9 The insulation resistance of the motor winding in a hot state or after a heat test should not be lower than the value obtained by formula (1): U
1000+P
Where:
R——winding insulation resistance, unit: M: U—-winding rated voltage, unit: V:
Rated power, unit: W.
4.10 The motor winding should It can withstand a voltage withstand test lasting 1 minute without breakdown. The frequency of the test voltage is 50Hz, and it should be a sine wave as much as possible. The effective value of the voltage is twice the rated voltage plus 1000V. The same motor should not be subjected to this test repeatedly. If the user requests, an additional test is allowed after installation and before the start of operation. The test voltage should not exceed 80% of the above provisions. If necessary, the motor should be dried before the test. 4.11 The stator winding of the motor should be able to withstand the ground and turn-to-turn impulse voltage withstand test without breakdown. When conducting the impulse voltage withstand test, the peak value of the coil test impulse voltage and the test method shall comply with the provisions of JB/10098. 4.12 When the three-phase power supply is balanced, the deviation of any phase of the three-phase no-load current of the motor from the three-phase average value should not be greater than the average. 10% of the mean value
4.13 When the motor is unloaded, the effective value of the vibration velocity measured in the free suspension state (see GB10068) shall not exceed 3.5mm/s (or under rigid installation, the effective value of the vibration velocity measured shall not exceed 2.8mm/s). 4.14 The noise value of the A-weighted sound power level measured when the motor is unloaded shall not exceed the provisions of Table 7. Table 7
Rated power
250~550
>550~1100
>1100~2000
Synchronous speed r/min
4.15 The motor has a cylindrical shaft extension. The frame size 450~500 uses a flat key connection, and the frame size 560~630 uses a tangential key connection. Otherwise, it is manufactured according to the agreement.
4.16 The motor shaft extension is not allowed to bear external axial force and radial force other than the weight of the coupling. For motors using sliding bearings, when connected to the driven machinery with a flexible coupling, unless otherwise specified, the flexible coupling should have an axial limit device, and the allowable axial motion should be in accordance with the agreement.
4.17 The motor is not allowed to reverse or brake by reverse power supply during operation. Whether it is allowed to reverse after shutdown is determined by the manufacturer. 4.18 The motor should be made into three outlet terminals and a wiring mark diagram should be set at the same time. From the shaft extension end, the motor terminal box is located on the right side of the base, otherwise it is in accordance with the agreement.
4.19 When the alphabetical order of the terminal is the same as the voltage phase sequence of the three-phase power supply, the motor should rotate clockwise from the shaft extension end. (See GB197[—1980)
4.20 The motor shall be equipped with a grounding terminal on the junction box and the base, and marked with the symbol or graphic mark specified in GB14711. The design of the grounding terminal shall ensure good connection and sufficient contact area with the grounding wire. 4.21 All markings on the motor shall be clear and durable, and not easy to be erased or fall off during the service life. 5 Inspection rules
5.1 Each motor shall be inspected and qualified before leaving the factory, and shall be accompanied by a product certificate. 5.2 Each motor must be inspected and tested. The inspection and test items include: a) Mechanical inspection:
b) Determination of insulation resistance between stator and housing and between windings (cold insulation resistance can be measured during inspection, but it should be ensured that the insulation resistance in hot state is not lower than the provisions of 4.9):
c) Determination of DC resistance of winding in actual cold state: d) Withstand voltage test:
e) Withstand impulse voltage test (random sampling test of single coil): f) Determination of no-load current and loss:
Note: No-load characteristic curve needs to be measured during type test. g) Determination of transformation ratio:
h) Determination of vibration (according to the provisions of 4.13): i) Overspeed test.
5.3 If any of the following conditions are met, the motor must be subjected to type test. After the finalization of the model, the manufacturer conducts the first trial production or small batch production: a)
When the design or process changes are sufficient to cause changes in certain characteristics and parameters: b)
When the inspection test results and the previous type test results have an unacceptable deviation: c)
The batch production of motors is subject to regular sampling tests at least once every two years. d
5.4 The type test items of motors include: a) All items of inspection tests:
b) Thermal test:
c) Determination of efficiency, power factor and slip rate; d) Short-time over-torque test:
e) Determination of maximum torque:
f) Determination of noise (according to the provisions of 4.14 of this standard). 5.5 The mechanical inspection items of the motor include: a) Rotation inspection: When the motor rotates, it should be smooth and light without stagnation: b) Appearance inspection: Check whether the motor is assembled completely and correctly, and the paint on the motor surface should be dry, uniform, and free of stains, damage, cracks, etc.:
c) Inspection of installation dimensions, external dimensions and key dimensions: The installation dimensions and external dimensions should comply with the provisions of 3.8.1 of this standard, and the dimensions of the shaft extension key should comply with the provisions of 3.8.2 of this standard. 6
JB/T10445—2004
d) Inspection of collector rings and brushes: The surface of the collector ring should be smooth, and sand holes are not allowed. The brush and collector ring should have good contact, and there should be no significant sparks during operation. The brush lifting device should be light and flexible, and should have good contact during short circuit. 5.6 The various tests specified in 5.2 (except e) and h) and 5.4 (except f) of this standard shall be carried out in accordance with GB/T1032. 5.2 e) can be carried out in accordance with JB/T10098 according to a single line, 5.2 h) in accordance with GB10068, 5.4 f) in accordance with GB/T10069.1, and 5.5 c) for the inspection of installation dimensions and tolerances shall be carried out in accordance with GB/T4772.2. 5.7 The test of the protection level of the motor housing 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 protection level of the housing shall be carried out in accordance with GB/T4942.1. 6 Marking, packaging and service life
6.1 The nameplate and its data shall be guaranteed not to fall off or wear easily during the service life of the motor. 6.2 The nameplate should be fixed on a conspicuous position on the motor base and should indicate the following items: a) Manufacturer name:
b) Motor name:
c) Motor model:
d) Enclosure protection grade (separate nameplate is allowed): e) Rated frequency:
Rated power:
g) Rated current:
Rated voltage:
Rated speed:
Rated power factor:
k) Insulation grade or temperature rise limit:
Wiring method. If the stator and rotor use different wiring methods, they can be expressed in fractional form, with the numerator representing the stator and the denominator representing the rotor: 1)
m) Rated type:
n) Cooling method:
o) Rotor winding open circuit voltage:
p) Rated rotor current:
9) Manufacturer's production year and month and production number:) Weight:
s) Standard number.
6.3 The stator and rotor winding terminals of the motor and the wiring positions on the terminal board (or in the terminal box) should all have corresponding markings. The markings are in accordance with the provisions of Table 8.
Winding name
First phase
Second phase
Third phase
Terminal marking
6.4 The motor shaft key must be tied to the shaft, and the shaft and key surface must be rust-proof and protected. 6.5 The motor's instruction manual, electrical data, appearance drawing and product certificate should be provided to the user along with each motor. 6.6 The motor's packaging should be able to ensure that under normal storage and transportation conditions, it will not be damp or damaged due to poor packaging within one year from the date of shipment.
6.7 The words and signs on the outer wall of the packing box should be clear and neat, as follows: JB/T10445—2004
6.7 The words and signs on the outer wall of the packing box should be clear and neat, as follows: a) Name of the shipping station and manufacturer:
b) Name of the receiving station and receiving unit:
c) Motor model and product number:
d) Net weight of the motor and gross weight of the box: e) Box size:
f) The words "Handle with care" and "Avoid rain" should be marked in appropriate positions outside the box, and the graphics should comply with the provisions of GB/T191. 6.8 If the user uses and stores the motor correctly according to the provisions of the instruction manual, the manufacturer should ensure that the motor can operate well within one year of use, but not more than two years from the date of shipment from the manufacturer. If the motor is damaged or cannot operate normally due to poor manufacturing quality within this specified period, the manufacturer should repair or replace parts or motors for the user free of charge. People's Republic of China
Mechanical Industry Standard
Technical Specifications for YR Series 10kV Wound Rotor Three-Phase Asynchronous Motors (Frame Size 450～630)
JB/T10445-—2004
Published and Distributed by Machinery Industry Press
No. 22 Baiwanzhuang Street, Beijing
Postal Code: 100037
1/16·1 Printing Sheet·21 Thousand Words||tt| |Format 890mm×1240mm
1st edition, 1st printing, June 2004
Book number: 15111·7311
Website: http:/cmpbook.com
Editorial office phone: (010) 88379779Direct sales center phone: (010 88379693All books without anti-counterfeiting labels on the cover are pirated
Copyright reserved
Infringements will be prosecuted
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.