GB/T 2819-1995 General technical requirements for mobile power stations
Some standard content:
National Standard of the People's Republic of China
General Technical Conditions for Mobile Power Plants
Mohile elecric power plant general specification for 1 Subject content and scope of application
1.1 Subject content
GB/T 2819—1995
Replaces GB 281981
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging and normal operation requirements of the following types of general-purpose mobile power plants (including automobile power plants, trailer power plants, and mobile generator sets, hereinafter referred to as mobile power plants) using flash engines as prime movers: a) Power frequency (60 Hz) power plants (60 Hz power station is called reference power station): b) Medium frequency (400H2) power station:
) Dual frequency (50H400Hz) power station:
d) DC power station (including the type of internal combustion engine powered by a rectifier): 1.2 Scope of application
This standard applies to power stations with a power of 0.3~1250kW 2 Reference standards
Standard gauge railway locomotive and vehicle limits
GB 116.1
(R 146.2
Standard gauge railway building limits
GB 755 Basic technical requirements for rotating electrical machines
GB1105
Internal combustion engine bench energy test force method
, vehicle external dimension limits
GB 1589
GR1859 Internal combustion engine noise measurement method
GB2423.16 Basic environmental test procedures for electrical and electronic products 1 Test J: Long-term test method
GI35320 Glossary of terms for internal combustion engine power stations
GB/T13306 Label
GJB 79 General specification for vans
GJB1488 General test methods for military internal combustion engine power stationsZB J91 005
Limits and test methods for torsional vibration of shafting of internal combustion engine generator setsJB/T 7605 Mobile power station rated power, voltage and speed 3 Terminology
According to GB5320.
4 Technical requirements
4.1 General
4.1.1 The power station shall comply with the provisions of this standard; the supporting parts of the power station, if not specified in this standard, shall comply with the technical conditions of the respective standards. 4.1.2 If there are special requirements for the power station, they shall be supplemented in the product technical specifications: State Technical Supervision Bureau 1995-07-06 Approved for implementation on August 1, 1996
4.2 Parameter requirements
GB/T2819..1995
4.2.1 The power station shall be manufactured in accordance with the provisions of JB/T7605. 4.2.2 The overall dimensions of the power station shall comply with the provisions of GB146.1, GB146.2 and GB1589. 4.2.3 The mass (kg or t) of the power station shall comply with the provisions of the product technical conditions. 4.3 Indicator
The monitoring instruments carried by the prime mover shall comply with the provisions of the corresponding product technical system. The accuracy level of each monitoring instrument on the control panel (except the prime mover instrument): the frequency meter shall not be lower than level 5.0; others shall not be lower than level 2.5.
Other indicator devices shall be able to operate normally.
4.4 Environmental conditions
4.4.1 Conditions for outputting rated power
The environmental conditions for the rated power output of the power station shall be one of the following, and shall be specified in the product technical conditions. 4.4.1.1 Altitude 0m, ambient temperature 20℃, relative humidity 60%; 4.4.1.2 Altitude 1000m. Ambient temperature 40%. Relative humidity 60%. 4.4.2 Conditions for outputting specified power (adjustable power allowed) The power station shall be able to output the specified power and work reliably under the following conditions, and the conditions shall be specified in the product technical conditions. 4.4.2.1 Altitude
Not exceeding 4000m.
4. 4.2.2 Ambient temperature
The lower limit values are -40, -25.-10 (for gasoline power stations), 5℃: [The upper limit values are 40, 45, 50℃ respectively.
4.4.2.3 Relative humidity, condensation and mold
) Comprehensive factors: According to the provisions of Table 1,
Environmental remoteness upper limit, ℃
Wettest month average maximum relative humidity
Relative humidity
Weakest month average minimum relative humidity
(at 25℃)
{at 2℃\
10(40E)
Note: 1) refers to the monthly average minimum temperature of the month becomes 25℃, the monthly minimum humidity refers to the monthly average of the lowest temperature of each dog in the month 2) refers to the average maximum temperature of the river is less than 0℃, the monthly average maximum temperature refers to the half-mean of the highest temperature of each person in the month. 50
b) Mold growth: After the electrical components of the power station are tested for mold growth, the surface mold growth level shall not exceed Level 2 specified in GB2123.16. 4.4.2.4 Inclination
Longitudinal: (fore and aft of the power station longitudinally) Horizontal inclination: not less than 10° or 15° for diesel power stations, not more than 5° or 10° for gasoline power stations
4.4.3 Power correction
When the test conditions of the power station are worse than those specified in 4.4.1, its output power shall not be less than the corrected value as follows. 4.4.3.1 For power stations with non-supercharged and mechanically supercharged diesel engines as prime movers, its power shall be the electric power converted from the diesel engine power under the test conditions according to the provisions of GB1105, but the maximum electric power shall not exceed the rated power of the generator. 4.4.3.2 For power stations using other prime movers, the power conversion method shall be in accordance with the provisions of the product technical conditions. 4.4.4 Correction of ambient temperature
GB/T 2819-1995
When the test altitude exceeds 1000m (but not more than 1000m), the upper limit of the ambient temperature shall be corrected by reducing 0.5℃ for every 100m increase in altitude.
4.5 Working mode
4.5.1 Continuous operation at rated conditions
Under the conditions specified in 4.4.1, the power station shall be able to operate continuously and normally at rated conditions for the following time: AC power station: 12h (including 1h of overload of 10%). First-flow power station: 4h
4.5.2 Continuous operation after power correction
4.5.2.1 Operation time
According to the provisions of the product technical conditions (or contract) 4.5.2.2 Output power
When the power station is continuously operated beyond the time specified in 4.5.1, under the condition of maintenance in accordance with the instructions, its output power should be:
AC power station: 90% of the specified power of the prime mover, converted to electric power after correction. However, this maximum power shall not exceed the rated power of the generator.
DC power station: According to the provisions of the instruction manual. 4.6 Start-up requirements
4. 6. 1 Normal temperature start
The power station should be able to start successfully after 3 attempts at normal temperature (diesel power station not less than 5 (, diesel power station not less than 10 (, gasoline power station not less than -10 ().
4.6.2 Low temperature start and load
Power stations used at low temperatures should have low temperature start measures: the operating environment temperature is not less than 4 ° C ((or -25 (), for diesel power stations with a power of less than 250kW, they should be able to start smoothly within 30 minutes, and gasoline power stations should be able to start within 20 minutes. They should have the ability to work with the specified load within 3 minutes after automatic success; for power stations with a power of more than 250kW, the low temperature start time and load operation time should comply with the provisions of the product technical conditions.
4.7 Electrical performance
4.7.1 Voltage setting range
The no-load voltage of the power station The setting range should not be less than 95-～10.% rated voltage. For power stations with single-phase uncontrolled excitation, the no-load voltage setting range shall be in accordance with the provisions of the product technical conditions. 4.7.2 Regulation rate, stabilization time and fluctuation rate 4.7.2.1 AC power station
The voltage and frequency regulation rate, stabilization time and fluctuation rate of the power station at 95%～100% rated voltage shall not exceed the provisions of Table 2: For power stations using uncontrolled phase compound excitation devices, the steady-state voltage regulation and voltage fluctuation rate shall be based on the assessment of the rated voltage. Self-rated power
Standard category
Gasoline engine
Diesel engine
Diesel engine
Gasoline engine
Diesel engine bzxZ.net
Gasoline engine
Diesel engine
Micro-state adjustment
.11.n
GB/T 2819 - 1995
Decompression voltage regulation rate
Electricity rating
Electricity fluctuation
Steady-state frequency
±5(-5
Note: () When the power station is under 0-25% rated load, the fluctuation rate of its voltage and rated frequency is allowed to be 0.5 higher than the value in the table. ②) When calculating the steady-state voltage regulation rate, the voltage change from cold to hot is not included. The single-top power station of the high-voltage (6300V) power station does not assess the decompression voltage regulation rate and voltage stability. ① The first type of indicators is only applicable to power stations with a rated power of no more than 12kW. The transient frequency regulation rate and frequency stabilization time of the booster oil power station shall be in accordance with the specifications of the product technical system. 4.7.2.2 DC power station
a) Power station with rectifier power supply
The AC part shall comply with the provisions of 4.7.2.1. b) For power stations equipped with DC generators, the regulation rate, stabilization time and fluctuation rate of voltage and speed shall not exceed the requirements of Table 3. Table 3: Source engine, diesel engine, steady-state voltage regulation rate, voltage stabilization time, current stabilization accuracy and voltage stabilization accuracy. Voltage fluctuation rate, regulation rate, steady-state speed regulation rate, speed stabilization time. When required, the current stabilization accuracy of the DC power station with rectifier power supply shall not exceed ±5%, and the voltage stabilization accuracy shall not exceed ±3%. 4.7.4 Cold and hot voltage change
Frequency fluctuation rate
Speed fluctuation rate
The voltage change from cold to hot state of AC power station under rated working conditions: for power station using controllable excitation device generator, it should not exceed CB/T 2819-1995
±2% of rated voltage; for power station using uncontrollable excitation device generator, it should not exceed ±5% of rated voltage. 4.7.5 Distortion rate
The sinusoidal distortion rate of line voltage waveform of AC power station at no-load rated voltage should not be less than the following specified values: 15% for single-phase power station and power station with rated power less than 10 3kW; 10% for three-phase power station with rated power of 3~250kW; 5% for power station with rated power greater than 250kW. 4.7.6 Asymmetric load requirements
For a three-phase power station with a rated power not exceeding 250k, under a certain three-phase symmetrical load, if a resistive load of 25% of the rated phase power is added to any phase (for thyristor exciter, it refers to the phase connected to the thyristor), it should be able to work normally when the total load current of the phase does not exceed the rated value: the difference between the maximum (or minimum) value of the line voltage and the average value of the three-line voltage should not exceed ±5% of the average value of the three-line voltage. 4.7.7 Parallel connection
4.7.7.1 T-frequency diesel power station
When required, two power stations of different models and specifications shall be able to run stably in parallel within the range of 20% to 100% of the total rated power, and can smoothly transfer the active power and reactive power of the load. The distribution difference of the active power and reactive power shall not be less than 10%; when power stations of different capacities are connected in parallel, the ratio of the maximum power to the minimum power of the power station shall not be greater than 3:1, and under the condition of having similar speed regulation characteristics, the power station shall be connected in parallel when the total load power is The combined operation power stations should be able to operate in parallel stably within the range of 20% to 100% of the total rated power. The difference between the actual active power and reactive power borne by each power station and the proportion of the rated active power and reactive power should not be more than 10% of the rated active power and reactive power of the largest power station and 25% of the rated active power and reactive power of the smallest power station among all power stations. 4.7.7.2 Medium frequency diesel power station
When required, two three-phase power stations of the same model and specifications should be able to be connected in parallel to achieve stable load transfer. 4.7.7.3 Dual-frequency diesel power station
When required, the non-coupling operation of the power station shall comply with the provisions of the product technical conditions, 4.7.8 Starting motor
The upper frequency three-phase power station (including the phase 1 frequency machine of the dual-frequency power station) should be able to directly start successfully when the load is narrow. The no-load four-pole squirrel cage type three-phase asynchronous motor is shown in Table 1.
4. 7. 9 Temperature rise
Rated auxiliary power of power station P
75P≤120
120-P250
250≤P≤1250
Rated power of electric motor
According to the specifications of the product technical conditions
The temperature (or rise) of each component of the power station shall comply with the provisions of the respective product technical conditions. The stable operating temperature (or temperature rise) of each winding of the generator of the automobile power station and trailer power station is allowed to exceed the value specified in the technical conditions by 5% (4.7.10 Variable frequency power generation
Unless otherwise specified, the dual-frequency power station should be able to use the mains (power range 360-~100V frequency range 19.5~50.5F1z) as the original power to output dual-frequency electric energy.
4.7.11 Load increase requirements
Under the condition that the total output power of the dual-frequency power station does not exceed the rated power, it should be allowed to reduce the load of the medium-frequency machine and increase the load of the power-frequency machine, increase GB/T 2819 - 1995
The output power of the industrial frequency machine started by the load should not exceed the rated input power of the upper frequency machine when it is running as a motor. 4.7.12 Spark level
During the entire process from no-load to rated load, the spark level of the DC generator of the DC power station should not exceed 14.8 Structure
4.8.1 The electrical installation of the power station shall comply with the circuit diagram. Level
4.8.2 When the prime mover and the generator are connected with non-flange stoppers, the coaxiality of the prime mover and the generator shall comply with the provisions of the product technical conditions.
4.8.3 When required, the torsional vibration of the power station with a rated power greater than 100kW should be calculated and measured. 4.9 Limits of environmental pollution
4.9.1 Vibration
The power station should be based on the needs A vibration reduction device is installed. The single amplitude of vibration during operation of the power station should not exceed 0.3mm or 0.5mm. For power stations using supercharged diesel engines, single-cylinder and two-cylinder diesel engines and single-cylinder gasoline engines, the amplitude value should comply with the provisions of the product technical conditions. 4.9.2 Noise
The allowable noise value of the power station shall comply with the provisions of Table 5. The allowable noise value of the supercharged diesel power station and low-noise power station shall comply with the provisions of the product technical conditions.
Average noise sound pressure level
Power station type
Air-operated
Automobile power station
And van-type trailer
Power station
Non-compartmental operation
School-type car station
>250kw
Generator
Rated speed
# 00u r/min
4.9.3 Radio interference
(not big")
90:93;96
93;99:105
90+96;102
According to the provisions of the product technical
conditions
0. 50
For the control panel on the unit, the farthest possible distance from the center of the front of the control panel:
For the floor-standing control panel. The farthest possible distance from the generator end
From both sides of the power station and the generator end
From both sides of the unit and the rear end of the generator
From the floor1.00
Female ground
From the ground
For power stations with requirements for suppressing radio interference, measures to suppress radio interference should be taken, and the interference value should not be greater than the specified values in Tables 6 and 7.
F
F disturbance field strength
4.9.4 Concentration of harmful substances
. 15g0. 50
GB/T 28191995
Terminal interference voltage
0. 50-f≤2 50
2. 50-f.$20. 00
When required, the allowable concentration of harmful substances discharged from the power station shall be in accordance with the provisions of the product technical conditions. 4.9.5 Smoke density
When required, the exhaust smoke density of the power station shall be in accordance with the provisions of the product technical conditions. 4.10 Driving, transportation and braking
4.10.1 Mileage, road surface and speed
The structures of each part of the power station shall be able to withstand the vibration and impact of driving or transportation in accordance with the following requirements: dB
20. 00/5300, 00
a) Mileage: 1500km for the identification test and type test of automobile power station and trailer power station, and 50kn for the factory test1: 1000km for the identification test and type test of generator setb) Road surface: 60% of the test mileage for uneven dirt roads and bumpy stone roads; 40% of the test mileage for asphalt (or cement) roads.
) Speed: 20-30 km/h on uneven roads and gravel roads; 30-40 km/h on oil (or water) tracks.
4.10.2 Passability
GB/T 2819—1995
The passability of the vehicle power station shall not be lower than the performance index of the original vehicle (the departure angle shall be in accordance with the provisions of GJB79): The passability of the trailer power station shall not be lower than the performance index of the designated tractor
4.10.3 Towing ring
The center of mass of the single-axle trailer power station shall be slightly in front of the axle, and the towing ring load shall be 60~120kg. 4.10.4 Braking
The vehicle exit station and trailer power station must have reliable braking devices, so that their braking performance meets the relevant provisions of the original vehicle and the designated tractor respectively. The hand brake device of the trailer power station should generally ensure reliable braking in the up and down directions of a 26% (15) slope. 4.11 Fuel consumption requirements
4.11.1 The fuel tank capacity of the vehicle power station and trailer power station shall meet the requirements of Table 8. Table 8
Diesel engine
Gasoline engine
Out-station rated power
Oil volume in the fuel tank Ensure the continuous operation time of the power station h
(not shorter than)
The fuel consumption rate and engine oil consumption rate of the power station (/kW·h) shall not be higher than the provisions of Table 9 and Table 10) respectively. 4. 11.2
Rated power of power station,
Fuel consumption
120p250
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