GB/T 7060-1994 Basic technical requirements for marine rotating electrical machines
Some standard content:
UDC621.313.17 :629. 12
National Standard of the People's Republic of China
GB/T 7060—94
Basic technical requirements for rotary electrical machines in ships
General specificatoins for rotary electrical machines in ships1994-04-12Promulgated
National Technical Supervision
Implementation on 1994-12-01
W.National Standard of the People's Republic of China
Basic technical requirements for rotary electrical machines in ships
General specificatoins for rotary electrical machines in ships1 Subject content and scope of application
GB/T 7060-94
Replaced CB 7060- --H7
This standard specifies the technical performance, test methods, inspection rules and marking, packaging and storage of marine rotating electrical machines. This standard applies to rotating electrical machines for marine use (including mobile and fixed offshore installations), and is also applicable to micro-controlled motors. 2. Reference standards GB 191 Pictorial markings for packaging, storage and transportation GB 755-87 G1 997-81 Basic technical requirements for rotating electrical machines Motor structure and installation type code Three-phase synchronous motor test piece method GH/T 1029-93 GB1032-85 GB1311-89 Test methods for three-phase asynchronous motors Test methods for DC motors Motor line markings and direction of rotation GR 1971--801 GB/T 1993--93 A
Rotating electrical machines, that is, mode
Basic environmental test procedures for electrical and electronic products Test Ih, alternating damp heat test method GB 2423. 4—81
G1 2423. 16—90
G 2423. 17—61
GR 2828—87
Basic environmental test procedures for electrical and electronic products, Test: mildew growth test method Basic environmental test procedures for electrical and electronic products Test Ka: salt spray test method Batch inspection counting sampling procedures and sampling tables (applicable to inspection of continuous batches) GB 3836. J—83
GB 3836. 2—83
General requirements for explosion-proof electrical equipment for explosive atmospheres Explosion-proof electrical equipment for explosive atmospheres Flameproof electrical equipment\d”Explosion-proof electrical equipment for explosive atmospheres Increased safety electrical equipment” GB 3836. 3—83
GB 3836. 4--83
Explosion-proof electrical equipment for explosive atmospheres Wood safety circuits and electrical equipment\"CB 3836. 5-- 87
Explosion-proof electrical equipment for explosive atmospheres
Positive pressure electrical equipment "P"
GB3836.887Explosion-proof electrical equipment for explosive atmospheres Spark-free electrical equipment\n\
GB4831·-84Motor product model compilation method GK4912.1-85Motor housing protection classification
GB 9651—88Single-phase asynchronous motor test method GB 10068.1—88 Determination method and limit value of vibration of rotating electrical machine Determination method of vibration
Vibration limit value
GB10068.2—88 Determination method and limit value of perturbation of rotating electrical machine Determination method and limit value of rotating electrical noise
GR 1c069.1-88
GB1C069.2--88 Determination method and limit value of noise of rotating electrical machine Engineering determination method of noise
Simple determination method of noise
Noise limit value
GH 1C069.388
Determination method and limit value of noise of rotating electrical machine
GB1G250—88 Electromagnetic compatibility of electrical and electronic equipment of ships Approved by the State Administration of Technical Supervision on April 12, 1994 and implemented on December 1, 1994
W.GB/T 7060—94
GB1235190 Environmental technical requirements for tropical rotating electrical machines GB11711·93+ General safety requirements for small rotating electrical machines JB4386.188 Environmental condition parameter classification for electrical equipment for mobile platforms and offshore facilities JB4386.2-88 General provisions for environmental testing of electrical equipment for mobile platforms and offshore facilities JB4159—85 General technical requirements for tropical electrical equipment IB/2293-87 Test specification for insulation between stator windings of AC high voltage motors JB/Z29487 Test method for insulation between loose windings of alternating low voltage motors JB/T581591 Test specification for insulation between pole coils and field windings of motors [B/T5811:91 Test method and limit for insulation between traces of formed windings of AC low voltage motors 713/TK2300290 Test specification for insulation between turns of armature windings of DC motors ZJR K04 005--87
Test method for tilt and sway of marine electrical equipment 3 Terminology
3.1 Steady-state voltage regulation rate of marine AC generators When the marine AC generators, together with their regulating devices, change in the steady-state voltage of the generators and the rated voltage when the generators change between no-load and full-load within the specified range of prime mover speed and power factor, the ratio of the change in the terminal voltage of the steady-state generator to the rated voltage U. — Umi
The maximum or minimum value of the terminal voltage of the generator when the load changes between full load and no-load, V: Where i., t
U Rated voltage of the generator, V.
3.2 Transient voltage regulation rate of the transient AC generator When the specified load is suddenly added or removed at the rated speed and rated power. The transient voltage regulation value is the ratio of the difference between the maximum (or minimum) value of the transformer voltage and the rated voltage to the rated voltage, and is calculated as follows: r =
Wu:
Rated voltage of the generator, V:
(u -- Un)
The maximum (or minimum) voltage of the generator when the load suddenly changes, V. 3.3 Transient voltage recovery time of marine AC generator X 100%.
The time required for the voltage to recover to and remain within the specified stable value range from the sudden load change. As shown in Figure 1. 3.4 Normal operation
The working state in which the performance and parameter changes of the marine motor are within the predetermined range under the specified conditions of use. 3.5 Reliable operation
The marine motor can work without fault under the specified conditions of use. 2
（2）
W.%
Product categories and models
4.1 Classification
GE/T 7060—94
Electricity stability pool 1 lower limit
Voltage stability upper and lower limits
H, a momentary drop +R-instantaneous voltage rise;tvtVoltage recovery time Marine motors are classified according to the product's operating characteristics and their role in the ship's power system, including generators (AC, DC), motors (AC, DC), converters, frequency converters, etc. The specifications for the classification of various products according to their use, structure, capacity level, and installation force are specifically specified in the standards of various products.
4.2 Model compilation
The model compilation of marine motors shall comply with the provisions of GB4831. 5 Technical requirements
In addition to complying with the provisions of this standard, rotating motors for ships and mobile and fixed offshore installations shall comply with the provisions of GB755. Marine explosion-proof motors shall also comply with the provisions of GB3836.1~3836.5 and GB3836.8. 5.1 General requirements
5.1.1 Duty system and extended rating
W.bzsoso: com GB/T 7060-94
The expression of the duty system and the selection rules of the rated category for marine use shall comply with the provisions of GB755. 5.1.2 Frequency The rated frequency of the marine inverter is 50Hz or 60Hz. The rated minimum input frequency of the marine inverter is 400Hz, 500Hz, 100Hz. 5.1.3 Voltage The nominal voltage and rated voltage of the marine inverter shall be selected according to the values specified in Table 1. The rated voltage of the marine inverter is 120 (or 115), 230 (or 208), 400 (or 390)V, AC standard effective current 10 900V. New rated power: ! Applicable to single-phase motors 2: Voltage parameters for power supply. Generators 3: Support for mobile and fixed near-travel installations. 5.1.4 Shell protection level
Motor
Generator
The shell protection level of marine motors should be IF20, IF22, 1P23, IP44, IP55, IP56, IP66. The shell protection level of the junction box should be consistent with the shell protection level of marine motors, but should not be lower than 1P44. The definitions and technical requirements of various protection types should comply with the provisions of G14942.1. 5.1.5 Shaft motor
If necessary, measures should be taken to prevent the generation of circulation between the shaft and the bearing. 5.1.6 Materials
5.1.6.1 The shell material of marine motors should be steel or cast iron with a tensile strength of 196MPa and a bending resistance of 392MPa or more.
5.1.6.2 The shaft material of marine motors should comply with the following provisions: The chemical composition of the shaft material of marine motors should comply with the provisions of Table 2. b Mechanical properties of the rotating shaft of the fan motor of the ship
For carbon steel and carbon plate steel, tensile strength: greater than or equal to 441MPa; yield point: greater than or equal to 211MPa; elongation of the sample (a) longitudinal: greater than or equal to 24%.
CB/T 7060-94
For alloy steel, tensile strength: greater than or equal to 65IMPa; yield point: greater than or equal to 450MPa; elongation of the sample (b) longitudinal: greater than or equal to 17%.
5.1.6.3 Marine motors generally use fuel, moisture-resistant, resistant, and low-toxic materials. Motors used in mobile and fixed offshore devices should also use materials that are resistant to corrosion by chemically active substances. Table 2
Embedded steel
Alloy clamp
5.1.7 Structural requirements
5.1.7.1 The cooling method of marine motors shall comply with the provisions of GB/T1993 5.1.7-2 The structure and installation method of marine motors shall comply with the provisions of GB997 5.1.7.3 The terminal box of marine motors shall be equipped with special copper working ground screws. The bottom of the base, that is, the support plate or the terminal cover, shall be equipped with external ground screws at the terminal box, and shall be marked with durable, clear and definite marks. 5.1.7.4 Except for small marine motors with closed bearing structure, oil filling holes and oil drain holes shall be generally considered to ensure good lubrication of the shaft.
5.1.7.5 Marine motors should generally be equipped with heaters. Marine motors with voltages above 1000V should be equipped with heaters to prevent condensation of moisture on the motor windings. The total power of the heater should make the motor heated to a temperature about 5K higher than the ambient temperature of the motor. However, the insulation near the heater should not exceed the specified temperature limit. 5.1.7.6 If necessary, marine motors can be equipped with air filters. The air filters should be made of materials with good air permeability, high filtration efficiency and easy washing. The installation of air filters should be convenient for disassembly and cleaning. Temperature measurement and thermal protection elements should be installed inside the motors equipped with air filters.
5.1.7.7 Marine motors with AC 1600V and DC 500V or above should have the following special structural requirements, and: All the wire ends of the stator windings are non-conductive. b. Unless measures are taken to ensure that the low positive terminal can be approached without danger, the high voltage terminal of the motor should not be mixed with the low positive terminal in the same terminal box.
c. A temperature detector should be installed in the fixed hand winding. When an embedded temperature detector is used, a circuit overcurrent protection measure should be provided.
If a water-to-air heat exchanger is used as a cooler, the cooler should be a double-tube type. d
5.2 Conditions of use
5.2.1 Marine motors should be able to operate normally under the following environmental conditions. 5.2.1.1 Ambient air temperature:
0～·45℃ in enclosed spaces.
b In spaces exceeding 45V and 0℃, according to the temperature of these spaces. Open deck -25～+45℃
5.2.1.2 The primary cooling water temperature should not be greater than +32℃. W.bzsoso：comCB/T 7060
5.2.1.3 The relative humidity of the air is 95%, and there is condensation. 5.2.1.4 There are oil mist, salt, mold and sea water. 94
5.2.1.5 Marine motors in mobile and fixed offshore installations are also affected by chemically active substances such as sulfur monoxide and hydrogen sulfide. Marine motors in dangerous areas such as ships, liquid cargo ships, mobile and fixed offshore installations are also affected by oil gas, natural gas and other condensable gases. 5.2.1.6 Pitch:
Pitch: 10bZxz.net
Pitch: 7.5 (0° for emergency motors)
Roll: 15 (22.5° for emergency motors, 25° for semi-mobile and travel-type offshore platforms) Roll: 22.5°
5.2.1.7 Marine and offshore installations are affected by impact and vibration. 5.2.2 Marine motors should be able to operate reliably under the following frequency and power changes. 5.2.2.1 For AC motors, the frequency change is ±5% of the rated frequency; the voltage change is 10% to 10% of the voltage. 5.2.2.2 For DC motors, the voltage change is -6% to -10% of the rated voltage. 5.2.2.3 For battery-powered motors, the voltage change is at least ±20% of the rated voltage. 5.3 Temperature rise 5.3.1 For motors of continuous and intermittent duty, when operating at rated speed at an ambient air temperature of 45°C, the temperature rise limits of their various parts shall comply with the provisions of Table 3. Note: In Table 3, T indicates the core thermometer method, R indicates the resistance method, and E indicates the thermal conductivity thermometer method. Table 3 Components of motors a, motor book at 5 000 kw AC windings of motors with power greater than 200W (or kVA) and less than 50kW (or kVA) c. AC windings of motors with power of 200k (or kVA) and below, but excluding the above items d. AC windings of motors with power less than 60W (or VA) or less than 60W (or VA) or less than 60kW (or VA) "
Telegraph windings with commutators
Direct current excitation of the parent current and the field windings of DC motors, except for item 4
115|1202
W. Must be
Electric machine parts
. Field windings of cylindrical rotor stepper motors embedded in the dc excitation winding, except for step induction motors
All multi-layered motors, stationary field windings GB/T 7060
Class Table 3
". Low resistance compensation field windings for AC and DC motors, and compensation burning groups for DC motors
4 Except for small marine motors with closed bearing structure, oil filling holes and oil drain holes should be considered to ensure good lubrication of the shaft.
5.1.7.5 Marine motors should generally be equipped with heaters. Marine motors with voltages above 1000V should be equipped with heaters to prevent condensation of moisture on the internal windings of the motor. The total power of the heater should make the temperature of the motor heated to about 5K higher than the ambient temperature of the motor hole. However, the insulation near the heater should not exceed the specified temperature limit. 5.1.7.6 If necessary, marine motors can be equipped with air filters. The air filters should be made of materials with good air permeability, high filtration efficiency and easy washing. The installation of air filters should be convenient for disassembly and cleaning. Temperature measurement and thermal protection elements should be installed inside the motors equipped with air filters.
5.1.7.7 Marine motors with AC 1600V and DC 500V or above should have the following special structural requirements, and: All the wire ends of the stator windings are non-conductive. b. Unless measures are taken to ensure that the low positive terminal can be approached without danger, the high voltage terminal of the motor should not be mixed with the low positive terminal in the same terminal box.
c. A temperature detector should be installed in the fixed hand winding. When an embedded temperature detector is used, a circuit overcurrent protection measure should be provided.
If a water-to-air heat exchanger is used as a cooler, the cooler should be of double-tube type. d
5.2 Conditions of use
5.2.1 Marine motors should be able to operate normally under the following environmental conditions. 5.2.1.1 Ambient air temperature:
0～·45℃ in enclosed spaces.
b In spaces exceeding 45V and 0℃, according to the temperature of these spaces. Open deck -25～+45℃
5.2.1.2 The primary cooling water temperature should not be greater than +32℃. W.bzsoso：comCB/T 7060
5.2.1.3 The relative humidity of the air is 95%, and there is condensation. 5.2.1.4 There are oil mist, salt, mold and sea water. 94
5.2.1.5 Marine motors in mobile and fixed offshore installations are also affected by chemically active substances such as sulfur monoxide and hydrogen sulfide. Marine motors in dangerous areas such as ships, liquid cargo ships, mobile and fixed offshore installations are also affected by oil gas, natural gas and other condensable gases. 5.2.1.6 Pitch:
Pitch: 10
Pitch: 7.5 (0° for emergency motors)
Roll: 15 (22.5° for emergency motors, 25° for semi-mobile and travel-type offshore platforms) Roll: 22.5°
5.2.1.7 Marine and offshore installations are affected by impact and vibration. 5.2.2 Marine motors should be able to operate reliably under the following frequency and power changes. 5.2.2.1 For AC motors, the frequency change is ±5% of the rated frequency; the voltage change is 10% to 10% of the voltage. 5.2.2.2 For DC motors, the voltage change is -6% to -10% of the rated voltage. 5.2.2.3 For battery-powered motors, the voltage change is at least ±20% of the rated voltage. 5.3 Temperature rise 5.3.1 For motors of continuous and intermittent duty, when operating at rated speed at an ambient air temperature of 45°C, the temperature rise limits of their various parts shall comply with the provisions of Table 3. Note: In Table 3, T indicates the core thermometer method, R indicates the resistance method, and E indicates the thermal conductivity thermometer method. Table 3 Components of motors a, motor book at 5 000 kw AC windings of motors with power greater than 200W (or kVA) and less than 50kW (or kVA) c. AC windings of motors with power of 200k (or kVA) and below, but excluding the above items d. AC windings of motors with power less than 60W (or VA) or less than 60W (or VA) or less than 60kW (or VA) "
Telegraph windings with commutators
Direct current excitation of the parent current and the field windings of DC motors, except for item 4
115|1202
W. Must be
Electric machine parts
. Field windings of cylindrical rotor stepper motors embedded in the dc excitation winding, except for step induction motors
All multi-layered motors, stationary field windings GB/T 7060
Class Table 3
". Low resistance compensation field windings for AC and DC motors, and compensation burning groups for DC motors
4 Except for small marine motors with closed bearing structure, oil filling holes and oil drain holes should be considered to ensure good lubrication of the shaft.
5.1.7.5 Marine motors should generally be equipped with heaters. Marine motors with voltages above 1000V should be equipped with heaters to prevent condensation of moisture on the internal windings of the motor. The total power of the heater should make the temperature of the motor heated to about 5K higher than the ambient temperature of the motor hole. However, the insulation near the heater should not exceed the specified temperature limit. 5.1.7.6 If necessary, marine motors can be equipped with air filters. The air filters should be made of materials with good air permeability, high filtration efficiency and easy washing. The installation of air filters should be convenient for disassembly and cleaning. Temperature measurement and thermal protection elements should be installed inside the motors equipped with air filters.
5.1.7.7 Marine motors with AC 1600V and DC 500V or above should have the following special structural requirements, and: All the wire ends of the stator windings are non-conductive. b. Unless measures are taken to ensure that the low positive terminal can be approached without danger, the high voltage terminal of the motor should not be mixed with the low positive terminal in the same terminal box.
c. A temperature detector should be installed in the fixed hand winding. When an embedded temperature detector is used, a circuit overcurrent protection measure should be provided.
If a water-to-air heat exchanger is used as a cooler, the cooler should be of double-tube type. d
5.2 Conditions of use
5.2.1 Marine motors should be able to operate normally under the following environmental conditions. 5.2.1.1 Ambient air temperature:
0～·45℃ in enclosed spaces.
b In spaces exceeding 45V and 0℃, according to the temperature of these spaces. Open deck -25～+45℃
5.2.1.2 The primary cooling water temperature should not be greater than +32℃. W.bzsoso：comCB/T 7060
5.2.1.3 The relative humidity of the air is 95%, and there is condensation. 5.2.1.4 There are oil mist, salt, mold and sea water. 94
5.2.1.5 Marine motors in mobile and fixed offshore installations are also affected by chemically active substances such as sulfur monoxide and hydrogen sulfide. Marine motors in dangerous areas such as ships, liquid cargo ships, mobile and fixed offshore installations are also affected by oil gas, natural gas and other condensable gases. 5.2.1.6 Pitch:
Pitch: 10
Pitch: 7.5 (0° for emergency motors)
Roll: 15 (22.5° for emergency motors, 25° for semi-mobile and travel-type offshore platforms) Roll: 22.5°
5.2.1.7 Marine and offshore installations are affected by impact and vibration. 5.2.2 Marine motors should be able to operate reliably under the following frequency and power changes. 5.2.2.1 For AC motors, the frequency change is ±5% of the rated frequency; the voltage change is 10% to 10% of the voltage. 5.2.2.2 For DC motors, the voltage change is -6% to -10% of the rated voltage. 5.2.2.3 For battery-powered motors, the voltage change is at least ±20% of the rated voltage. 5.3 Temperature rise 5.3.1 For motors of continuous and intermittent duty, when operating at rated speed at an ambient air temperature of 45°C, the temperature rise limits of their various parts shall comply with the provisions of Table 3. Note: In Table 3, T indicates the core thermometer method, R indicates the resistance method, and E indicates the thermal conductivity thermometer method. Table 3 Components of motors a, motor book at 5 000 kw AC windings of motors with power greater than 200W (or kVA) and less than 50kW (or kVA) c. AC windings of motors with power of 200k (or kVA) and below, but excluding the above items d. AC windings of motors with power less than 60W (or VA) or less than 60W (or VA) or less than 60kW (or VA) "
Telegraph windings with commutators
Direct current excitation of the parent current and the field windings of DC motors, except for item 4
115|1202
W. Must be
Electric machine parts
. Field windings of cylindrical rotor stepper motors embedded in the dc excitation winding, except for step induction motors
All multi-layered motors, stationary field windings GB/T 7060
Class Table 3
". Low resistance compensation field windings for AC and DC motors, and compensation burning groups for DC motors
Except for item 4
115|1202
W. Must be
Electrical machine parts
. Field windings of cylindrical rotors embedded in stepping motors with DC excitation windings, except for stepping induction motors
All layers of static field windings of motors GB/T 7060
Class Table 3
“. Low resistance compensation field windings for AC and DC motors and compensation burning sets for DC motors
Except for item 4
115|1202
W. Must be
Electrical machine parts
. Field windings of cylindrical rotors embedded in stepping motors with DC excitation windings, except for stepping induction motors
All layers of static field windings of motors GB/T 7060
Class Table 3
“. Low resistance compensation field windings for AC and DC motors and compensation burning sets for DC motors
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