JB/T 8667.1-1997 This standard specifies the structural type, technical requirements, inspection rules and test methods, marking and packaging of TK series large three-phase synchronous motors. This standard applies to TK series large three-phase synchronous motors for reciprocating compressors. All matters not specified in this standard shall comply with the provisions of GB/T 755 "Basic Technical Requirements for Rotating Electric Machines". JB/T 8667.1-1997 Technical conditions for large three-phase synchronous motors TK series JB/T8667.1-1997 standard download decompression password: www.bzxz.net

JB/T8667.1-1997
This standard is based on the new requirements of reciprocating compressors for TK series large synchronous motors in recent years. It stipulates the structural type, technical requirements, inspection rules and test methods, marking and packaging requirements of large three-phase synchronous motors for reciprocating compressors. Appendix A of this standard is a prompt appendix.
This standard is proposed and managed by Harbin Large Electric Motor Research Institute. This standard is drafted by Beijing Heavy Electric Motor Factory. Participating drafting units: Dongfang Electric Motor Co., Ltd. The main drafters of this standard: Zhu Zhujun, Gao Qingting. This standard is interpreted by Harbin Large Electric Motor Research Institute. 248
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Large Three-Phase Synchronous Motors
TK Series
1 Scope
JB/T8667.1--1997
This standard specifies the structural type, technical requirements, inspection rules and test methods, marking and packaging of TK series large three-phase synchronous motors.
This standard applies to TK series large three-phase synchronous motors for reciprocating compressors. All matters not specified in this standard shall comply with the provisions of GB755 "Basic Technical Requirements for Rotating Electric Machines". 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191-1990 Packaging, storage and transportation pictorial symbols
GB755---1987 Basic technical requirements for rotating electrical machines GB/T997-1981 Motor structure and installation type code (neqIEC34-7: 1972) GB/T1029-1993 Three-phase synchronous motor test method (neqIEC34-2) GB/T1993--1993 Rotating electrical machine cooling method (eqvIEC34-6: 1991) GB/T4942.1---1985 Motor housing protection classification (eqvIEC34·51981) GB/T10068.1-1988 Rotating electrical machine vibration measurement method and limit vibration measurement method (neq34-14: 198 6) GB/T10069.1--1988)
Determination method and limit of noise for rotating electrical machines Noise engineering determination method (ncqIS) 1680-1:1986
GB10069.3--1988Determination method and limit of noise for rotating electrical machines Noise limit (neq1EC34-9) JB/Z293-1987 Test specification for insulation between turns of stator winding of AC high voltage motor JB/T5810--1991
3 Structural type
Test specification for insulation between turns of motor pole coil and field winding 3.1 The protection grade of motor casing is IP00. If other protection grade requirements are adopted, it can be agreed upon by the user and the manufacturer (see GB/T4942.1).
3.2 The cooling method of the motor is IC01. If other cooling methods are required, the user and the manufacturer can agree on it (see GB/T1993). 3.3 The structure and installation type of the motor: According to the matching requirements of the compressor, the basic structure and installation type of the motor can be made into IM7311 and IM5710 (see GB/T997), which can also be negotiated according to the user's requirements. 3.4 Model description see indicative appendix A.
4 Technical requirements
4.1 The rating of the motor is continuous rating S1 (see GB755). 4.2 The rated frequency of the motor is 50Hz.
4.3 The rated voltage of the motor is 6000V. If other voltage levels are required, the user and the manufacturer can agree on it. Approved by the Ministry of Machinery Industry on December 17, 1997
Implemented on February 1, 1998
JB/T8667.1--1997
4.4 The rated power factor of the motor is 0.9 (leading). 4.5 The rated power levels of the motor are 250, 320. (350), 400, 500, (550), 630, 800. 1000, (1120), 1250, (1400), 1600, (1800), 2000. (2200), 2500, (2800), 3200, (3600), 4000kW. If there are other power level requirements, they can be agreed upon by the user and the manufacturer.
Note: The power in brackets is the reserved power. 4.6 The rated speed level of the motor is: 500, 428, 375.333, 300, 250r/min. If there are other speed level requirements, they can be agreed upon by the user and the manufacturer.
4.7 The stator lead wires of the motor can be made into 3, 6, 9 or 12 according to the user's requirements. 4.8 The motor should be able to operate continuously at rated speed under the following altitude and ambient air temperature conditions. 4.8.1 The altitude shall not exceed 1000m.
The ambient temperature varies with the seasons, but shall not exceed 40C. 4.8.2
The operating environment shall be free of dust, acid, alkali and other corrosive gases and explosive gases. 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. 4.9
The efficiency of the motor is specified in the special technical conditions of the manufacturer. The guaranteed value of the ratio of the step-out torque to the rated torque of the motor at rated voltage is 1.6. The guaranteed value of the ratio of the stall torque to the rated torque of the motor at rated voltage is 0.6. The guaranteed value of the ratio of the nominal pull-in torque to the rated torque of the motor at rated voltage is 0.6. The guaranteed value of the ratio of the stall current to the rated current of the motor at rated voltage is 6.5. The tolerance of the guaranteed value of the motor performance shall comply with the following provisions: 4.15
a) Efficiency, -0.10(1-n) (indirect method); b) Stall current, +20% of the guaranteed value;
c) Stall torque, -15% of the guaranteed value; d) Step-out torque, -10% of the guaranteed value, e) Nominal pull-in torque, -15% of the guaranteed value. 4.16 The motor is generally started directly at full voltage. It is allowed to start twice in a cold state (actual cold state) continuously, with a natural stop between the two times. It is allowed to start once in a hot state (temperature not exceeding its rated load operating temperature). Note: The compressor should be in a no-load state when starting. 4.17 The stator and rotor insulation of the motor can be Class B or Class F. When the altitude and ambient air temperature meet the requirements of 4.8, the temperature rise limits of the stator and rotor windings and stator core of the motor shall not exceed the values ​​in Table 1. Table 1
Insulation level
Thermometer method
Stator winding
Resistance method
Thermometer method
Thermometer method
Stator core
Resistance method
Thermometer method
Thermometer method
Rotor winding
Resistance method
4.18 The temperature rise limit of the motor collector ring (thermometer method) is 80K for Class B insulation and 90K for Class F insulation. Note: If a temperature rise of 90K or higher is used, special attention should be paid to the selection of electrical materials. 4.19 When the motor adopts sliding bearing, the allowable temperature of the bearing shell shall not exceed 80℃. Thermometer method
The motor shall be able to withstand an increase in speed to 120% of its rated value for 2 minutes without harmful deformation when it is unloaded. 4.20
4.21 The insulation resistance of the motor in hot state or after temperature rise test shall not be less than the value obtained by the following formula: R
(1)
JB/T8667.1---1997
Where: R.. Insulation resistance of motor winding, Ma; U --Rated voltage of motor winding, V; rated power of motor, kW.
4.22 The insulation resistance value of motor rotor winding at room temperature shall not be less than 0.5Mα. 4.23 The winding of the motor shall be able to withstand a withstand voltage test for 1 min without breakdown. The frequency of the test voltage shall be 50 Hz and shall be as sinusoidal as possible. Its value shall be as specified in Table 2. Table 2
Field winding
Stator winding
a) When the motor is started, the field winding is short-circuited or connected in parallel with a resistance less than 10 times the winding resistance.
b) When the motor is started, the field winding is connected in parallel with a resistance equal to or greater than 10 times the winding resistance
Test voltage (effective value)
1000V+2 times rated voltage
a) 10 times the rated excitation voltage, but the minimum is 1500V. The maximum is 3500V.
b) 1000V+2 times the effective value of the maximum voltage (this voltage appears between the line ends of the field winding under the specified starting conditions), but the minimum is 1500V
4.24 The stator winding of the motor should be able to withstand the intermittent impulse withstand voltage test according to the requirements of JB/Z293, and the rotor winding should be able to withstand the intermittent impulse withstand voltage test according to the requirements of JB/T5810.
The limit value of the A-weighted sound power level of the motor's no-load noise shall be in accordance with the provisions of GB10069.3. 4.26
When the motor is at the rated speed at no-load, the double amplitude vibration value at the bearing should not be greater than 0.075mm. 5 Inspection rules and test methods
5.1 Each motor must pass the inspection before leaving the factory, and a product inspection certificate shall be attached. 5.2 Each motor must undergo inspection and testing, and the inspection and testing items include: a) Mechanical inspection; b) Measurement of the insulation resistance of the winding to the casing and between the windings; c) Measurement of the DC resistance of the winding under actual cooling conditions; d) Measurement of no-load characteristics; e) Measurement of steady-state short-circuit characteristics; f) Voltage withstand test of the winding to the casing and between windings; g) Inter-turn impulse withstand voltage test (or short-time voltage rise test); h) Overspeed test; i) Vibration measurement (shaftless motors are not subject to this test). 5.3 In any of the following situations, the motor must undergo type testing: a) When the trial production of a new product is completed; 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) Motors produced repeatedly in batches must undergo random type testing at least once every 5 years. 5.4 The motor type test items include:
a) All items of inspection test;
b) Determination of motor excitation current under no-load overexcitation, and at rated voltage and rated armature current;
d) Determination of efficiency;
e) Determination of stall current and stall torque;
f) Determination of nominal pull-in torque;
g) Determination of stall torque;
JB/T8667.1-1997
h) Determination of winding reactance and time constant (motor below 500kVA may not undergo this test);
i) Determination of noise (shaftless motors are not subject to this test);
i) Determination of moment of inertia.
5.5 The tests for the test items specified in this standard shall be carried out in accordance with the methods specified in GB/T1029, GB/T10069.1, GB/T10068.1, JB/7.293 and JB/T5810.
6 Marking and packaging
6.1 The nameplate and its data shall be guaranteed not to fall off or be erased easily during the service life of the motor. 6.2 The nameplate shall be fixed in a conspicuous position on the motor base, and the items that must be marked are as follows: a) Manufacturer name;
b) Motor name;
c) Motor model:
d) Rated power, kW;
e) Rated voltage, V;
f) Rated current, A;
g) Rated frequency, Hz;
h) Rated speed, r/min;
i) Rated power factor;
j) Number of phases;
k) Insulation grade;
1) Rated excitation voltage, V;
m) Rated excitation current, A;
n) Year and month of production;
a) Production number;
p) Standard number;
q) Weight, kg or t;
r) Wiring method;
s) Shell protection grade;
t) Moment of inertia GD (only motors with requirements for this item should be marked). 6.3 The motor should be equipped with a mark indicating the direction of rotation in a conspicuous position. 6.4 The shaft extension key of the motor should be tied to the shaft, and anti-rust measures should be taken on the surface of the shaft extension and key. 6.5 The packaging of the motor should be able to avoid damage and moisture during transportation. 6.6 The words and signs on the outer wall of the packing box should be clear and neat, and the contents are as follows: a) Name of the shipping station and manufacturer; b) Name of the receiving station and receiving unit; c) Model and production number of the motor; d) Net weight and gross weight; e) Dimensions of the packing box; f) The words "Lift from here", "Handle with care" and "Avoid moisture" should be marked in appropriate positions on the packing box, and the graphic signs should comply with the provisions of GB191. Warranty period and random documents JB/T 8667.1--1997
7.1 If the user uses and stores the motor correctly according to the manufacturer's operating and maintenance instructions, the manufacturer shall ensure that the motor can operate well within one year of use, but no more than two years from the date of shipment from the manufacturer. If the motor is damaged or cannot work normally due to poor manufacturing quality within this specified period, the manufacturer shall repair or replace parts or motors for the user free of charge. 7.2 Each motor must be accompanied by the following documents: a) Product inspection certificate;
b) Electrical data;
c) Operating and maintenance instructions;
d) Appearance drawing. bZxz.net
JB/T8667.1-1997
(Appendix of tips)
Model description
Outer diameter of stator core, mm
Rated power, kW
Three-phase synchronous motor for air compressor5 The packaging of the motor should be able to avoid damage and moisture during transportation. 6.6 The text and signs on the outer wall of the packaging box should be clear and neat, and the contents are as follows: a) The name of the shipping station and the manufacturer;
b) The name of the receiving station and the receiving unit;
c) The motor model and product number;
d) Net weight and gross weight;
e) The size of the packaging box;
f) The words "Lift from here", "Handle with care" and "Avoid moisture" should be marked in the appropriate position of the packaging box, and its graphic signs should comply with the provisions of GB191.
Warranty period and random documents
JB/T 8667.1--1997
7.1 If the user uses and stores the motor correctly according to the manufacturer's operating and maintenance instructions, the manufacturer shall ensure that the motor can operate well within one year of use, but no more than two years from the date of shipment from the manufacturer. If the motor is damaged or cannot work normally due to poor manufacturing quality within this specified period, the manufacturer shall repair or replace parts or motors for the user free of charge. 7.2 Each motor must be accompanied by the following documents: a) Product inspection certificate;
b) Electrical data;
c) Operating and maintenance instructions;
d) Appearance drawing.
JB/T8667.1-1997
(Appendix of tips)
Model description
Outer diameter of stator core, mm
Rated power, kW
Three-phase synchronous motor for air compressor5 The packaging of the motor should be able to avoid damage and moisture during transportation. 6.6 The text and signs on the outer wall of the packaging box should be clear and neat, and the contents are as follows: a) The name of the shipping station and the manufacturer;
b) The name of the receiving station and the receiving unit;
c) The motor model and product number;
d) Net weight and gross weight;
e) The size of the packaging box;
f) The words "Lift from here", "Handle with care" and "Avoid moisture" should be marked in the appropriate position of the packaging box, and its graphic signs should comply with the provisions of GB191.
Warranty period and random documents
JB/T 8667.1--1997
7.1 If the user uses and stores the motor correctly according to the manufacturer's operating and maintenance instructions, the manufacturer shall ensure that the motor can operate well within one year of use, but no more than two years from the date of shipment from the manufacturer. If the motor is damaged or cannot work normally due to poor manufacturing quality within this specified period, the manufacturer shall repair or replace parts or motors for the user free of charge. 7.2 Each motor must be accompanied by the following documents: a) Product inspection certificate;
b) Electrical data;
c) Operating and maintenance instructions;
d) Appearance drawing.
JB/T8667.1-1997
(Appendix of tips)
Model description
Outer diameter of stator core, mm
Rated power, kW
Three-phase synchronous motor for air compressor
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