JB/T 10314.1-2002 Technical requirements for YRKS, YRKS-W, YQF series high voltage wound rotor three-phase asynchronous motors (frame size 355-630)
Some standard content:
ICS29.160.30
Machinery Industry Standard of the People's Republic of China
JB/T10314.1-—2002
Specification for YRKS, YRKS-W, YROF series high voltage
wound-rotor three-phase asynchronous motors
(Frame size 355～630)
Specification for YRKS, YRKSW, YRQF series high voltage three-phase wound-rotor induction motors（Frame numbers 355~630）
2002-07-16 Issued
2002-12-01 Implementation
The State Economic and Trade Commission of the People's Republic of China Issued Foreword
2 Normative references
3 Types, basic parameters and dimensions
Technical requirements,
5 Inspection rules.
6 Marking, packaging and service life
JB/T10314.1—2002
JB/T10314.1—2002
This part is formulated for enclosed three-phase asynchronous motors with air-water cooler and weather protection wound rotor. The "agreement" in this part refers to the agreement between the manufacturer and the user. JB/T10314 consists of two parts:
-Part 1: Technical conditions for YRKS, YRKS--W, YRQF series high-voltage wound rotor three-phase asynchronous motors (frame size 355~630);
Part 2: Technical conditions for YRKK, YRKK-W series high-voltage wound rotor three-phase asynchronous motors (frame size 355-630). This part is Part 1 of JB/T10314. This part was proposed by the China Machinery Industry Federation. This part is under the jurisdiction of the National Technical Committee for Standardization of Rotating Electric Machines (SAC/TC26). This part was drafted by the Shanghai Electric Science Research Institute, and Shanghai Electric Machine Factory, Shenyang Electric Machine Factory, Dongfang Electric Machine Factory, Zhangdian Electric Machine Factory, Xiangtan Electric Machine Factory, Jiangxi Electric Machine Factory, Harbin Electric Machine Factory, Jiamusi Electric Machine Factory, and Jinan Shengjian Electric Machine Factory participated in the drafting. The main drafters of this part are Kang Ping, Zhang Xunhe, Wu Xiaozheng, Yu Derong, and Li Guangyao. Ⅲ
JB/T10314.1—2002
Technical conditions for YRKS, YRKS-W, YROF series high-voltage wound rotor three-phase asynchronous motors
(Frame size 355～630)
1 Scope
This part specifies the types, basic parameters and dimensions, technical requirements, inspection rules, and marking and packaging requirements for closed three-phase asynchronous motors with air-water coolers and weather protection. This part is applicable to general-purpose (after negotiation, it can also be used for towing winches, rolling mills, etc.) YRKS, YRKS-W, YRQF series high-voltage wound rotor three-phase asynchronous motors with frame sizes of 355～630 (hereinafter referred to as motors). YRKS series is suitable for indoor use, while YRKS-W and YRQF series are suitable for outdoor use in dusty and humid environments. 2 Normative references
The clauses in the following documents become the clauses of this part through reference to this part of JB/T10314. For dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this part. However, parties who reach an agreement based on this part are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest versions are applicable to this part.
GB/T191--2000 Pictorial symbols for packaging, storage and transportation (eqvISO780:1997) GB755-2000 Ratings and performance of rotating electrical machines (idtEC60034-1:1996) GB/T997-1981 Motor structure and installation type code (eqvEC60034-7:1972) GB/T1032--1985 Test methods for three-phase asynchronous motors GB/T1993-1993 Cooling methods for rotating electrical machines (eqvIEC60034-6:1991 ）GB/T4772.2-1999 Dimensions and output power levels of rotating electrical machines Part 2: Frame sizes 355 to 1000 and flange sizes 1180 to 2360 (idtIEC60072-2:1990)
GB/T4831-1984 Method for compiling motor product models Rotating electrical machine enclosure protection classification (IP code) (idtIEC60034-5:1991)GB/T4942.1-2001
GB10068-2000 Shaft center height is 56 mm and above Mechanical vibration of motors - Measurement, evaluation and limit values of vibration (idtIEC60034-14: 1996)
GB/T10069.1-1988
Method for measuring noise of rotating motors and engineering method for measuring noise limit values (neqISO1680-1: 1986)
GB/T10069.2--1988Method for measuring noise of rotating motors and simple method for measuring noise limit values (negISO1680-2: 1986)
GB10069.3-19 88 Rotating electrical machine noise determination method and limit value Noise limit value (neqEC60034-9) JB/T43751999 Electrical products Outdoor and indoor corrosive environment conditions AC motor stator forming coil impulse withstand voltage level (idtIEC60034-15:1995) JB/T10098—2000
3 Type, basic parameters and dimensions
3.1 The motor model consists of three parts: series code, specification code and environment code arranged in sequence (see GB/T4831-1984). 1
JB/T10314.1—2002
Example: YRKS (or YRQF)—3551-4—W environment code, applicable to YRKS series. Indicates outdoor (omitted for indoor), specification code, indicates shaft center height 355mm, core length 1, 4-pole series code, indicates enclosed wound rotor asynchronous motor with air-water cooler (or weather-protected wound rotor asynchronous motor) 3.2 The motor housing protection level is IP44 for YRKS series, IP54 for YRKS-W series, and IPW24 for YRQF series. After negotiation, the collector ring housing protection level can also be IP22 or IP23 (see GB/T4942.1-2001). 3.3 Motor cooling method: IC81W for YRKS and YRKS-W series, IC01 for YRQF series (see GB/T1993-1993) 3.4 The structure and installation type of the motor is IMB3 (see GB/T997-1981) 3.5 The motor quota is a continuous quota based on the continuous duty system (S1). 3.6
The rated frequency of the motor is 50Hz, and the rated voltage is 6000V or 3000V. The corresponding relationship between the motor frame number and the speed and power shall be in accordance with the provisions of Table 1. Table 1
Frame number
Note: The power with * is allowed to be placed in the 710 frame, 3.8 Motor size and deviation:
Synchronous speed/min
The installation size and deviation of the motor shall comply with the provisions of Table 2, and the external size shall not be greater than that of Table 2. 500
JB/T10314.1-2002
s90k
000-0—0
Frame number
JB/T10314.1—2002
The size and deviation of the motor shaft extension key shall comply with the provisions of Table 3. 3.8.2
Technical requirements
Calculation width
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 not exceed 40℃. Unit: mm
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℃, the provisions of GB755 shall be followed. 4.1.3 Minimum ambient air temperature: -15℃ when rolling bearings are used, 0℃ when sliding bearings are used, or by agreement. 4.1.4 Cooling water temperature: For YRKS and YRKS--W series motors, the cooling water temperature at the cooler inlet shall not be higher than 33℃, nor lower than 5℃.
4.1.5 The average maximum relative humidity of the wettest month is 90%. At the same time, the average minimum temperature of the month is not higher than 25℃. 4.1.6 For YRKS-W and YRQF series motors, the maximum rainfall intensity in the use environment is 6mm/min, the maximum solar radiation intensity is 1120W/m2, and there may be sand, dust, ice, snow, dew, frost, etc. (see JB4375-1999). 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 GB755-2000. 4.3 When the power, voltage and frequency are rated, the guaranteed values of the motor efficiency and power factor shall comply with the provisions of Table 4. When the motor adopts a brushless lifting structure, its efficiency is allowed to be reduced by 0.3% according to Table 4: When the motor adopts a sliding bearing, its efficiency is allowed to be reduced by 0.3% according to Table 4.
Efficiency is determined by the indirect method. When determining the total loss of the motor, the PR loss of the winding should be converted to the value at the insulation reference operating temperature corresponding to the temperature rise of the assessment, and the stray loss is calculated as 0.5% of the rated input. 4.4 At rated voltage, the guaranteed value of the ratio of the motor's maximum torque to the rated torque should be 1.8 times. 4.5 The tolerance of the guaranteed value of the motor electrical performance shall comply with the provisions of Table 6. 4
Frame size
Permitted reduction of efficiency%
JB/T10314.1—2002
JB/T10314.1-2002
Efficiency n
Power factor cos
Maximum torque
-0.10 (1-n)
(1-cos)/6
10% of the guaranteed value
4.6 The motor adopts F-class insulation, and the temperature rise is assessed according to B-class. When the altitude and ambient air temperature meet the requirements of 4.1 of this section, the temperature rise limit of the motor winding (resistance method) and the temperature rise limit of the collector ring (thermometer method) shall not exceed 80K; the allowable temperature of the bearing (thermometer method or embedded thermometer method) shall not exceed 95℃ for rolling bearings and 80℃ for sliding bearings (when the oil outlet temperature is not higher than 65℃), or by agreement. For motors using air-water coolers, the temperature rise shall be calculated from the temperature of the primary cooling medium at the cooler outlet, and the temperature shall not exceed 40℃, or calculated from the actual maximum primary cooling medium temperature, and the temperature rise limit shall be corrected in accordance with the provisions of GB755-2000. By agreement, the temperature rise may also be calculated from the inlet water temperature of the air-water cooler, and the temperature rise limit shall be corrected, and the correction value shall be in accordance with the provisions of GB755-2000. 4.7 When the motor is in a hot state and with the torque gradually increasing, it should be able to withstand an over-torque exceeding 60% of the rated torque for 15 seconds without a sudden change in speed or stalling, and the voltage and frequency should be maintained at the rated value. 4.8 When the motor is unloaded, it should be able to withstand an increase in speed to 120% of its rated value for 2 minutes without harmful deformation. 4.9 When the motor is in a hot state or after a thermal test, the insulation resistance of the motor stator winding should not be lower than the value obtained by the following formula: R
Where:
R-winding insulation resistance, in M;
U-winding rated voltage, in V;
p-rated power, in kW.
4.10 The winding of the motor shall be able to withstand a withstand voltage test lasting 1 minute without breakdown. The frequency of the test voltage is 50Hz and it shall be a sinusoidal waveform as much as possible. The effective value of the voltage is twice the rated voltage plus 1000V, and the rotor is twice the rotor winding open circuit voltage when it is stationary plus 1000V. The same motor shall not be tested repeatedly. If the user requires, an additional test is allowed before the start of operation after installation. The test voltage shall not exceed 80% of the above provisions. If necessary, the motor shall be dried before the test. 4.11 The stator coil of the motor shall be able to withstand the ground and turn-to-turn withstand impulse voltage test without breakdown. When conducting the withstand impulse voltage test, the peak value of the coil test impulse voltage and the test method shall comply with the provisions of JB/T10098--2000. 4.12 When the three-phase power supply is balanced, the deviation of any one phase of the three-phase no-load current of the motor from the three-phase average value shall not exceed 10% of the average value.
4.13 When the motor is unloaded, the effective value of the vibration velocity measured in the free suspension state (see GB10068-2000) shall not exceed 3.5mm/s (or when the motor center height is greater than 400mm 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. 4.15 The motor has a cylindrical shaft extension, and the machine frame size 355~500 uses a flat key connection, the machine frame size 560~630 uses a tangential key connection, or by agreement.
4.16 The motor shaft extension is not allowed to bear the external axial force and radial force other than the weight of the coupling. For motors using sliding bearings, when connected to the driven machine with a flexible coupling, unless otherwise specified, the coupling should have an axial limit device, and the allowable axial movement 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 stopping is determined by the manufacturer. 4.18 The motor should be made into 3 outlet terminals, and the wiring mark diagram should be set at the same time. Viewed from the shaft extension end, the motor terminal box is located on the right side of the base, or according to the agreement.
Rated power
>185~220
>220~550
>550~1100
>1100～2200
YRKS-W
YRKS-W
YRKS-W
JB/T10314.1—2002
Unit: dB (A)
4.19 The direction of rotation of the motor, when the letter sequence of the terminal marking is the same as the voltage phase sequence of the three-phase power supply, the motor should rotate clockwise when viewed from the shaft extension end, or as agreed. 4.20 The motor can be equipped with a moisture-proof heater. The heater should make the air temperature inside the casing higher than the ambient temperature, and it should be considered that the heating temperature of the heater should not damage the insulation of itself and any adjacent parts. The heater should be able to work continuously during the motor's stoppage. 4.21 For YRKS and YRKS-W series motors, the air-water cooler must undergo a water pressure test. The test water pressure should not be less than 2 times the working water pressure, and a leakage baffle should be installed to prevent water from leaking from the pipe and dripping into the motor winding. The air-water cooler should have a removable water tank or cover for easy regular inspection or cleaning.
4.22 For YRQF series motors, the cold air entering the top cover should have at least 3 turns of not less than 90°, and the air outlet should have 2 turns of not less than 90°. A low-speed wind zone of not more than 3m/s should be provided in the cold air inlet channel. 4.23 The motor should be equipped with a grounding terminal on the junction box and the base, and marked with corresponding symbols or graphics. The design of the grounding terminal should ensure good connection and sufficient contact area with the grounding wire. 4.24 All markings on the motor should be clear and durable, and not easy to be erased or fall off during the service life. 5 Inspection rules
Each motor must pass the inspection before leaving the factory, and a product certificate should be attached. 5.1
5.2Each motor should be inspected and tested. The inspection test items include: a) Mechanical inspection.
Measurement of the insulation resistance of the winding to the casing and between the windings (the cold insulation resistance can be measured during the inspection test, but the insulation resistance in the hot state should be guaranteed not to be lower than the provisions of 4.9 of this part). c)
Measurement of the DC resistance of the stator winding in the actual cold state. Withstand voltage test.
Withstand impulse voltage test (random sampling test of a single coil). Determination of no-load current and loss.
Note: The no-load characteristic curve needs to be measured during the type test. Determination of rotor voltage.
Determination of vibration.
i) Overspeed test.
j) Water pressure test of air-water cooler.
5.3 In any of the following situations, the motor must be type tested: JB/T10314.1-2002
When the manufacturer first trial-produces or produces in small batches after the identification and finalization; a)
b) When the design or process changes are sufficient to cause changes in certain characteristics and parameters; c) When the inspection test results and the previous type test results have an unacceptable deviation; d) Regular sampling of batch-produced motors, at least once every two years. 5.4 The motor type test items include:
All items of inspection test;
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.
5.5 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. The paint on the motor surface should be dry, uniform, and free of stains, damage, cracks, etc.
Installation dimensions, external dimensions and key dimensions inspection: The installation dimensions and external dimensions should comply with the provisions of 3.8.1 of this part, and the key dimensions should comply with the provisions of 3.8.2 of this part.
Collector ring and brush inspection: The collector ring surface should be smooth and free of sand holes. It should have good contact with the brush. There should be no significant sparks during operation. The brush lifting device should be light and flexible, and it should have good contact during short circuit. 5.6 The test methods specified in 5.2 (except e) and h) of this part) and 5.4 (except f) of this part) shall be carried out in accordance with the provisions of GB/T1032-1985. e) of 5.2 of this section can be carried out according to the provisions of JB/T10098--2000 for a single coil, h) of 5.2 of this section can be carried out according to the provisions of GB10068-2000, f) of 5.4 of this section can be carried out according to the provisions of GB/T10069.1~2-1988 and GB10069.3-1988, and c) of 5.5 of this section can be carried out according to the provisions of GB/T4772.2-1999 for the inspection of installation dimensions and tolerances. 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 is carried out according to GB/T4942.1-2001. 6 Marking, packaging and service life
6.1 The nameplate and its data should be guaranteed not to fall off or wear out 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: manufacturer name;
motor name:
motor model: www.bzxz.net
housing protection grade (separate nameplate is allowed); d)
rated frequency;
rated power;
rated current;
rated voltage:
rated speed;
rated power factor;
rated rotor current;
rotor winding open circuit voltage:
m) 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;
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