JB/T 8982-1999 Technical requirements for three-phase AC frequency-stabilized voltage-stabilized power supply units and systems
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T8982
1999-08-06
Wa Xian Ji Dong
2000-01-01
JB/T8982
This standard is formulated based on GB/T755 Rotating Electrical Machines—Ratings and Performance】[idtIEC60034-1（1996】, so that it can be used in technical content In order to be consistent with international standards, this standard was proposed and approved by the National Technical Committee for Standardization of Rotating Electric Machines. This standard was drafted by Shanghai Bo Electric Science Research Institute, the Eighth Design Institute of Machinery Industry, Lanzhi Motor Group Co., Ltd., Shanghai Gexin Motor Factory, and Guodong Motor Factory. The main drafters of this standard are Ni Wenyi and Chen Yuanping. I
Ji Jia Kui Lu Wa Yi Xin
1 Scope
JB/T89821999| |tt||This standard specifies the basic parameters, technical requirements, test methods, inspection regulations, marking, packaging, etc. of three-phase AC steady-state power supply units and systems.
This standard is used for a complete set of electric motors, synchronous generators, and industrial auxiliary power supply systems as a low-speed, wide-range power supply device for testing small three-phase AC motors and other electrical appliances. It can also be used as a power supply device for other electrical appliances that meet the technical indicators of this standard, or as a variable-frequency power supply device: 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard by citing them in this standard. At the time of publication of the standard, the versions shown are valid: All standards will be revised, and parties using this standard should consider the possibility of using the latest version of the following standards GB191-1990
GB/T755
GB/T 997—1981
GB/T4942.1--1985
GB10068
GB10069—1988
Packing, storage and transportation standards
Rotating electrical machines—rated performance (idrEC60034-1:1996)Motor structure and installation type code (eqvIEC60034-7:1972)Motor housing protection classification (eqvIEC60034-5:1981)Measurement, evaluation and limit of machine field vibration of motors with a center height of 6 and above (idiIEC6003414:1996)
Rotating electrical machine sound quality standard Methods and limits (neg1EC60034-9:1972) GBT14048.1—1993 Low-voltage switchgear and control equipment JB/T58101991
JB/T5811-—1991
JB/T9615.2—1999
3 Types and basic capacities
Motor pole diagram and magnetic field winding turn-to-turn insulation test specification AC low-voltage motor component winding insulation test specification AC low-voltage motor sensitive winding turn-to-turn insulation test limit 31 The power supply system consists of three parts: a motor-synchronous generator set (hereinafter referred to as the set), a motor speed control device and a synchronous generator voltage stabilizing device.
3.2 The protection rating of each motor housing of the unit is IP21, IP23, IP44 and GB/T4942.13.3 The structural type of each motor of the unit is IMB3 (see GET97). The units are connected by elastic couplings or other devices, equipped with a common base and equipped with necessary protective covers. 1999-08-06
2000-01-01
JB/T8982
3.5 The installation mode of the synchronous generator is other. If the traction motor uses a DC motor, its excitation and avoidance circuit should use other. 3.6 The rated voltage of the synchronous generator is 400/460V , the preset auxiliary frequency is 50/60Hz. The power system is a star connection with a neutral point outlet. Other rated voltages are agreed upon by the user and the manufacturer. 3.7 The rated power factor of the synchronous generator is 0.8 (with a pound). 3.8 The rated power of the machine is based on the continuous duty system (SI as the basis for the continuous rating). 3.9 The rated power of the synchronous generator is: 5, 10, 24.50, 90, 120, 150, 200, 315, 400630kW. Other powers are agreed upon by the user and the manufacturer.
3.10 The unit should have the conditions for installing a speed measuring device. 4. Technical requirements
4.1 The ambient air temperature and relative ambient air temperature at the following altitudes Under humidity conditions, the power supply system should be able to operate stably. 4.1.1 Altitude not exceeding 1000m:
4.1.1 The environmental temperature does not exceed 40℃ and is not lower than 594.1.3 The monthly average high relative humidity of the operating location is 90%, and the monthly average low temperature is not higher than 25C. 4.2 The harmonic voltage factor (HVF) of the line voltage of the synchronous generator when it is rated load should not be greater than 0.015. The HVE value is calculated according to formula (I):
Where: U is the standard value of the harmonic voltage (with the rated voltage 0 as the base value): n is the harmonic voltage order, usually the harmonic order is taken as ≤13. 4.3 When the synchronous generator is rated load, The negative sequence component of the three-phase voltage should be less than 0.5% of the positive sequence component, and the influence of the zero sequence component should be eliminated. 4.4 The voltage and transient adjustment rate of the power system, plus the fluctuation rate, transient adjustment rate and fast recovery time should not be greater than the specified values in the table. Table 1: Voltage and transient adjustment, fluctuation rate and recovery time of the power system. Rated power 2000kw. Note: Different from the provisions in the table, it shall be agreed upon by the user and the manufacturer. 10 min
actuation rate
4.5The cold no-load voltage setting range of the power system at rated frequency is 10%-130% rated voltage.
Instantaneous voltage
4.6The power system should be able to operate stably at any frequency of 125-60H. However, the voltage must be reduced with the frequency value during low-frequency operation.
JB/T8982
According to special regulations, the power system can operate stably at 72Hz for a short time. At this time, the output power is determined by the user in accordance with the standards of their respective products. 5 Test methods
5.1The mechanical inspection of the power system includes:
Company) Installation quality inspection of the machine: The unit should run smoothly and smoothly without stalling: b. Surface quality inspection of the unit and control cabinet: The paint on the surface of the unit and control cabinet should be dry and complete, without stains, silicon failure, etc. The assembly is complete and correct.
S2 The harmonic voltage factor (HVF) of the voltage waveform should be measured at the rated frequency, rated voltage and rated load. The generator load is the actual distortion-free and actual flat circuit specified in GB/T755. The harmonic voltage of each phase is measured and the HVF value is calculated according to formula (1). 53 Determination of the ratio (E) of the negative-sequence component and the positive-sequence component of the three-phase voltage. 5.31 Drawing: The power supply system is operated under rated conditions, and the three-phase phase voltage U0 is measured: Um-Uc0. The phase angle ZAOBZBOG is determined by an electronic phase difference meter.
According to the measured phase voltage and phase angle, AABC is drawn as shown in Figure I and the center of gravity G of AABC is drawn. With BC as one side, an equilateral triangle ABCD is made outside 4ABC, and AD is connected at the bottom. AP=AD/3 is taken, then vector PA is the positive-sequence component of vector OA. Vector GP is the negative-sequence component of vector OA. The ratio of negative sequence component to positive sequence component: GP
Figure 1 Positive sequence component, negative sequence component drawing
5.3.2 Calculation method: The power supply system is running above and below the rated value, and the three-phase phase voltage UAo+U.Ueo negative sequence component and positive sequence component V+ are measured respectively. Formula (4) and formula (5) are used to calculate: V3
Fat+b+ei-
2a'b'+b'e'+e'a')-ta'+b'+
2a\b*+b'e-+e' a')-(at+bt+
JB/T8982
where a, b, c are the values of three-phase voltage UaoUno, Uco respectively, V is the ratio of negative sequence component to positive sequence component
5.4 Steady-state adjustment of voltage and frequency x100%
The power system is operated at no load under cold and hot conditions: and adjusted to the rated frequency (50Hz or 60Hz) and rated voltage, and the rated load is increased by about 25% successively to a fixed load, and the power factor is 0.8 (after diving), and then reduce the load from the vehicle to no-load. During the test, the voltage and lock rate setting devices are not used for adjustment. Measure the three-phase no-load setting voltage, no-load setting rate and the three-phase voltage, three-phase current, preload rate and auxiliary output power of each load point. The inspection test is allowed to measure only in the cold state
Note: The voltage measurement is based on the output voltage of the circuit breaker controlling the main fuse or power supply cabinet. The original voltage adjustment factor 8. () is calculated according to formula (7). 8. U-Umx100%
Where U is the steady-state voltage after the load changes. Take the maximum (or minimum) value among all readings as the average value of the three-phase voltage, V: Uh: the set voltage. V.
The total state frequency adjustment factor 8 (%) is calculated according to formula (8), 6,-x100%-
Where: Find the steady-state frequency after the load changes. Take the maximum (or minimum) value among all readings, Hz: the predetermined frequency, Hz
and the + value is evaluated based on the maximum value in the cold and hot states, 50Hz and 60Hz tests. 5.5 Determination of 10-min fluctuation rate of voltage and rated power 471
The power system is tested after running for 1 hour under rated working conditions. The AC power grid inlet voltage is required to be within the range of 342-399V and the load power is within the range of (100±10)% rated load. The voltage and rated power values of the U-line are read every 1mm for 10min. During the test, the voltage and rated power setting values are not allowed to be adjusted. The voltage fluctuation rate of 10min is calculated by formula (9): UAB-UARmin
x1009%
UABMs+UABmi
10mm power fluctuation rate is calculated by formula (10):
fmm-fmllx100%
fmar+fmin
8us.B is calibrated with the maximum value of each test at 50H and 60Hz. 5.6 Determination of 8h fluctuation rate of voltage and frequency
The power supply system operates under rated working conditions, and the AC power grid line voltage is required to be within the range of 342~399V. The load power is within the rated load range of (100±10)%, and the frequency is set at 50Hz or 60Hz respectively. The AC power grid voltage, line voltage, three-phase current, line power, and output power of the power supply system are read every 15min for 8 consecutive hours. During the trial adjustment process, the voltage and frequency setting devices are not allowed to be adjusted again.
JB/T8982
8h Voltage fluctuation rate 8 is calculated according to formula 11
UaBm-Uaim100%
UAu+UABmin
8h Power fluctuation rate 8m is calculated according to formula (12)
Sm-5mm-fax100%
Faas +fein
58:8m The maximum value in the 50Hx and 60H2 test is used for assessment. 5.7 Voltage and power supply rate adjustment and recovery time determination when voltage and power supply drop)
（12）
The power supply system is running at no load, the adjustment frequency is 50Hz or 60Hz respectively, the voltage is the rated value, and a constant impedance three-phase symmetrical load with rated current and rated power is suddenly added. After the voltage and power supply are stable, the three-phase line voltage, three-phase power value, and auxiliary power output are read. Then suddenly unload the load. During the process of sudden loading and unloading, use an oscilloscope to shoot the three-phase line voltage and the output voltage of the voltage converter, and ensure that the stable state is captured. Before the test, use the shooting diagram method to check the simultaneity of the three-phase closing of the switch. The time difference between the closing and disconnection of each contact should not be greater than 15 electrical degrees. Measure the three-phase line voltage when the load suddenly changes from the oscilloscope, and obtain the envelope of the three-phase line voltage peak value: Then divide the time scale into several equal parts, and calculate the average value of the three-phase peak value at the same time. Draw this average value into the change curve of U (see Figure 2) and the waveform diagram of the voltage from sudden drop to recovery to (100+3)%U. The length L and 1, mm voltage adjustment rate are 84 and 8-calculated according to formula (13) and formula (136). The voltage recovery time t and t are calculated by formula (14a) and formula (4b): taln
Where: L
Oscilloscope time grip [s length, mm
Voltage adjustment time and voltage recovery time are measured by adding or unloading load test values 13a)
136)
Measure the maximum output DC voltage of the speed-to-voltage converter when the load suddenly changes from the oscilloscope, as well as the voltage value after recovery and the waveform length Lgmm from the moment of sudden change to the voltage recovery to (1003)%U. The rate adjustment rate is calculated by formula 151: ayr-u
The recovery time of the dependent rate is calculated by formula (16]
5.8 The unit is measured according to the relevant provisions of GB10069. The unit is installed in a rigid manner, and the configuration of the beeping points is based on the configuration of the measuring points of the equivalent square envelope method with the unit as a whole. 5.9 The unit vibration measurement is carried out in accordance with the relevant provisions of GB10068. The unit is installed in a rigid manner, and the operating values of the traction motor and the synchronous generator are measured respectively: the maximum value of the effective value of the operating continuity is used for assessment 5
JB/T8982
1) Actual additional charge||tt| |Electricity consumption A center
Voltage stability diagram AU
b) Sudden load unloading
Figure 2 Sudden load, real load voltage waveform
510 The overspeed test, voltage resistance test, short mechanical strength test and impulse voltage resistance test of each motor in the power supply system shall be carried out in accordance with the provisions of the corresponding test method standards. 6 Inspection rules
61 The power supply system must be debugged and can only be released after reaching the specified indicators. It should be accompanied by a product control certificate and inspection test data. The inspection test data shall at least include 4.2, 4.3, 4.4 and 45 of this standard. 6.2 In the power supply system, each motor and control cabinet shall be inspected and tested according to the customer's own standards. 7 Marking, packaging and quality assurance period
7.1 The power supply system and its motors and control cabinets shall be fixed with nameplates in obvious positions. The nameplate material and the marking method on the nameplate should ensure that the characters are connected easily during the entire service life of the power system. 7.2 The unit and control unit should ensure that they will not be damaged by improper packaging under normal transportation. 7.3 The text and logo on the outside of the packing box should be neat and tidy, and the contents are as follows: a) Name of the shipping station and manufacturer:
b) Name of the receiving station and receiving unit (except for self-pickup: 6
JB/T8982
c) Net weight of the equipment and gross weight together with the packing box, production date: d) Size of the packing box:
e) There should be words or graphics such as "Handle with care", "Do not turn upside down", "Avoid moisture" on the outside of the packing box, and the graphics should comply with the provisions of GB191.
7.4 The power supply system should be stored in a dry, ventilated place without corrosive gas. 7.5 Random documents include:
e) Operation and maintenance instructions of the power supply system: Product qualification and inspection test data:
e) Packing list and other documents required by the user (should be specified in the contract) 7.6 Under the condition that the user uses and stores it correctly according to the manufacturer's operation instructions, the manufacturer shall ensure that the power supply system can operate well within a period of no more than one and a half years from the date of shipment from the manufacturer, and the service life does not exceed one year. If the power supply system is damaged or cannot work properly due to poor quality within this specified time, the manufacturer will repair or replace parts for the user free of charge. 7
JB/T8982
Yanjing880b1230
19XX Nest XX Cabin
100044
Dai Duan x/X
Rectangle XXX.XXX
19XX Nest XX Ridge
Purchase XXX.XX Guest
Pengxian Extreme Key Sticker5 Determination of 10-min fluctuation rate of voltage and rated power 471
The power system is tested after running for 1 hour under rated working conditions. The AC power grid inlet voltage is required to be within the range of 342-399V, the load power is within the range of (100±10)% rated load, and the voltage and power value of the U-line are read at 50Hz or 60Hz respectively. During the test, the voltage and power setting devices are not allowed to be adjusted. The 10-min voltage fluctuation rate 8un is calculated according to formula (9): UAB-UARmin
x1009%
UABMs+UABmi
10mm power fluctuation rate 8 is calculated according to formula (10):
fmm-fmllx100%
fmar+fmin
8us.B is calibrated with the maximum value of each test at 50H and 60Hz. 5.6 Determination of 8h fluctuation rate of voltage and frequency
The power supply system operates under rated working conditions, and the AC power grid line voltage is required to be within the range of 342~399V. The load power is within the rated load range of (100±10)%, and the frequency is set at 50Hz or 60Hz respectively. The AC power grid voltage, line voltage, three-phase current, line power, and output power of the power supply system are read every 15min for 8 consecutive hours. During the trial adjustment process, the voltage and frequency setting devices are not allowed to be adjusted again.
JB/T8982
8h Voltage fluctuation rate 8 is calculated according to formula 11
UaBm-Uaim100%
UAu+UABmin
8h Power fluctuation rate 8m is calculated according to formula (12)
Sm-5mm-fax100%
Faas +fein
58:8m The maximum value in the 50Hx and 60H2 test is used for assessment. 5.7 Voltage and power supply rate adjustment and recovery time determination when voltage and power supply drop)
（12）
The power supply system is running at no load, the adjustment frequency is 50Hz or 60Hz respectively, the voltage is the rated value, and a constant impedance three-phase symmetrical load with rated current and rated power is suddenly added. After the voltage and power supply are stable, the three-phase line voltage, three-phase power value, and auxiliary power output are read. Then suddenly unload the load. During the process of sudden loading and unloading, use an oscilloscope to shoot the three-phase line voltage and the output voltage of the voltage converter, and ensure that the stable state is captured. Before the test, use the shooting diagram method to check the simultaneity of the three-phase closing of the switch. The time difference between the closing and disconnection of each contact should not be greater than 15 electrical degrees. Measure the three-phase line voltage when the load suddenly changes from the oscilloscope, and obtain the envelope of the three-phase line voltage peak value: Then divide the time scale into several equal parts, and calculate the average value of the three-phase peak value at the same time. Draw this average value into the change curve of U (see Figure 2) and the waveform diagram of the voltage from sudden drop to recovery to (100+3)%U. The length L and 1, mm voltage adjustment rate are 84 and 8-calculated according to formula (13) and formula (136). The voltage recovery time t and t are calculated by formula (14a) and formula (4b): taln
Where: L
Oscilloscope time grip [s length, mm
Voltage adjustment time and voltage recovery time are measured by adding or unloading load test values 13a)
136)
Measure the maximum output DC voltage of the speed-to-voltage converter when the load suddenly changes from the oscilloscope, as well as the voltage value after recovery and the waveform length Lgmm from the moment of sudden change to the voltage recovery to (1003)%U. The rate adjustment rate is calculated by formula 151: ayr-u
The recovery time of the dependent rate is calculated by formula (16]
5.8 The unit is measured according to the relevant provisions of GB10069. The unit is installed in a rigid manner, and the configuration of the beeping points is based on the configuration of the measuring points of the equivalent square envelope method with the unit as a whole. 5.9 The unit vibration measurement is carried out in accordance with the relevant provisions of GB10068. The unit is installed in a rigid manner, and the operating values of the traction motor and the synchronous generator are measured respectively: the maximum value of the effective value of the operating continuity is used for assessment 5
JB/T8982
1) Actual additional charge||tt| |Electricity consumption A center
Voltage stability diagram AU
b) Sudden load unloading
Figure 2 Sudden load, real load voltage waveform
510 The overspeed test, voltage resistance test, short mechanical strength test and impulse voltage resistance test of each motor in the power supply system shall be carried out in accordance with the provisions of the corresponding test method standards. 6 Inspection rules
61 The power supply system must be debugged and can only be released after reaching the specified indicators. It should be accompanied by a product control certificate and inspection test data. The inspection test data shall at least include 4.2, 4.3, 4.4 and 45 of this standard. 6.2 In the power supply system, each motor and control cabinet shall be inspected and tested according to the customer's own standards. 7 Marking, packaging and quality assurance period
7.1 The power supply system and its motors and control cabinets shall be fixed with nameplates in obvious positions. The nameplate material and the marking method on the nameplate should ensure that the characters are connected easily during the entire service life of the power system. 7.2 The unit and control unit should ensure that they will not be damaged by improper packaging under normal transportation. 7.3 The text and logo on the outside of the packing box should be neat and tidy, and the contents are as follows: a) Name of the shipping station and manufacturer:
b) Name of the receiving station and receiving unit (except for self-pickup: 6
JB/T8982
c) Net weight of the equipment and gross weight together with the packing box, production date: d) Size of the packing box:
e) There should be words or graphics such as "Handle with care", "Do not turn upside down", "Avoid moisture" on the outside of the packing box, and the graphics should comply with the provisions of GB191.
7.4 The power supply system should be stored in a dry, ventilated place without corrosive gas. 7.5 Random documents include:
e) Operation and maintenance instructions of the power supply system: Product qualification and inspection test data:
e) Packing list and other documents required by the user (should be specified in the contract) 7.6 Under the condition that the user uses and stores it correctly according to the manufacturer's operation instructions, the manufacturer shall ensure that the power supply system can operate well within a period of no more than one and a half years from the date of shipment from the manufacturer, and the service life does not exceed one year. If the power supply system is damaged or cannot work properly due to poor quality within this specified time, the manufacturer will repair or replace parts for the user free of charge. 7
JB/T8982
Yanjing880b1230
19XX Nest XX Cabin
100044
Dai Duan x/X
Rectangle XXX.XXX
19XX Nest XX Ridge
Purchase XXX.XX Guest
Pengxian Extreme Key Sticker5 Determination of 10-min fluctuation rate of voltage and rated power 471
The power system is tested after running for 1 hour under rated working conditions. The AC power grid inlet voltage is required to be within the range of 342-399V, the load power is within the range of (100±10)% rated load, and the voltage and power value of the U-line are read at 50Hz or 60Hz respectively. During the test, the voltage and power setting devices are not allowed to be adjusted. The 10-min voltage fluctuation rate 8un is calculated according to formula (9): UAB-UARmin
x1009%
UABMs+UABmi
10mm power fluctuation rate 8 is calculated according to formula (10):
fmm-fmllx100%
fmar+fmin
8us.B is calibrated with the maximum value of each test at 50H and 60Hz. 5.6 Determination of 8h fluctuation rate of voltage and frequency
The power supply system operates under rated working conditions, and the AC power grid line voltage is required to be within the range of 342~399V. The load power is within the rated load range of (100±10)%, and the frequency is set at 50Hz or 60Hz respectively. The AC power grid voltage, line voltage, three-phase current, line power, and output power of the power supply system are read every 15min for 8 consecutive hours. During the trial adjustment process, the voltage and frequency setting devices are not allowed to be adjusted again.
JB/T8982
8h Voltage fluctuation rate 8 is calculated according to formula 11
UaBm-Uaim100%
UAu+UABmin
8h Power fluctuation rate 8m is calculated according to formula (12)
Sm-5mm-fax100%
Faas +fein
58:8m The maximum value in the 50Hx and 60H2 test is used for assessment. 5.7 Voltage and power supply rate and recovery time determination when voltage and power supply drop)
（12）
The power supply system is running at no load, the adjustment frequency is 50Hz or 60Hz respectively, the voltage is the rated value, and a constant impedance three-phase symmetrical load with rated current and rated power is suddenly added. After the voltage and power supply are stable, the three-phase line voltage, three-phase power value, and auxiliary power output are read. Then suddenly unload the load. During the process of sudden loading and unloading, use an oscilloscope to shoot the three-phase line voltage and the output voltage of the voltage converter, and ensure that the stable state is captured. Before the test, use the method of shooting the diagram to check the simultaneity of the three-phase closing of the switch. The time difference between the closing and disconnection of each contact should not be greater than 15 electrical degrees. Measure the three-phase line voltage when the load suddenly changes from the oscilloscope, and obtain the envelope of the three-phase line voltage peak value: Then divide the time scale into several equal parts, and calculate the average value of the three-phase peak value at the same time. Draw this average value into the change curve of U (see Figure 2) and the waveform diagram of the voltage from sudden drop to recovery to (100+3)%U. The length L and 1, mm voltage adjustment rate are 84 and 8-calculated according to formula (13) and formula (136). ya
Uaymas-Un
Uaym-Ug
The voltage recovery time t and t are calculated by formula (14a) and formula (4b): taln
Where: L
Oscilloscope time grip [s length, mm
Voltage adjustment time and voltage recovery time are measured by adding or unloading load test values 13a)
136)
Measure the maximum output DC voltage of the speed-to-voltage converter when the load suddenly changes from the oscilloscope, as well as the voltage value after recovery and the waveform length Lgmm from the moment of sudden change to the voltage recovery to (1003)%U. The rate adjustment rate is calculated by formula 151: ayr-u
The recovery time of the dependent rate is calculated by formula (16]
5.8 The measurement of the unit popping noise is carried out in accordance with the relevant provisions of GB10069. The unit is installed in a rigid installation manner, and the configuration of the beeping points is based on the measurement point configuration of the equivalent square envelope method with the unit as a whole. 5.9 The unit vibration measurement is carried out in accordance with the relevant provisions of GB10068. The unit is installed in a rigid installation manner, and the operating values of the traction motor and the synchronous generator are measured respectively: the maximum value of the effective value of the operating continuity is used for assessment 5
JB/T8982
1) Actual additional charge||tt| |Electricity consumption A center
Voltage stability diagram AU
b) Sudden load unloading
Figure 2 Sudden load, real load voltage waveform
510 The overspeed test, voltage resistance test, short mechanical strength test and impulse voltage resistance test of each motor in the power supply system shall be carried out in accordance with the provisions of the corresponding test method standards 6 Inspection rules
61 The power supply system must be debugged and can only be released after reaching the specified indicators, and it should be accompanied by a product control certificate and inspection test data. The inspection test data shall at least include 4.2, 4.3, 4.4 and 45 of this standard. 6.2 In the power supply system, each motor and control cabinet shall be inspected and tested according to the customer's own standards 7 Marking, packaging and quality assurance period
7.1 The power supply system and its motors and control cabinets shall be fixed with nameplates in obvious positions. The nameplate material and the marking method on the nameplate should ensure that the characters are connected easily during the entire service life of the power system. 7.2 The unit and control unit should ensure that they will not be damaged by improper packaging under normal transportation. 7.3 The text and logo on the outside of the packing box should be neat and tidy, and the contents are as follows: a) Name of the shipping station and manufacturer:
b) Name of the receiving station and receiving unit (except for self-pickup: 6
JB/T8982
c) Net weight of the equipment and gross weight together with the packing box, production date: d) Size of the packing box:
e) There should be words or graphics such as "Handle with care", "Do not turn upside down", "Avoid moisture" on the outside of the packing box, and the graphics should comply with the provisions of GB191.
7.4 The power supply system should be stored in a dry, ventilated place without corrosive gas. 7.5 Random documents include:
e) Operation and maintenance instructions of the power supply system: Product qualification and inspection test data:
e) Packing list and other documents required by the user (should be specified in the contract) 7.6 Under the condition that the user uses and stores it correctly according to the manufacturer's operation instructions, the manufacturer should ensure that the power supply system can operate well within a period of no more than one and a half years from the date of shipment from the manufacturer, and the service life does not exceed one year. If the power supply system is damaged or cannot work properly due to poor quality within this specified time, the manufacturer will repair or replace parts for the user free of charge. 7
JB/T8982
Yanjing880b1230
19XX Nest XX Cabin
100044
Dai Duan x/X
Rectangle XXX.XXX
19XX Nest XX Ridge
Purchase XXX.XX Guest
Pengxian Extreme Key Sticker7 Determination of regulation rate and recovery time when voltage and power drop)
(12)
The power system is running without load, the adjustment frequency is 50Hz or 60Hz respectively, the voltage is the rated value, and a constant impedance three-phase symmetrical load with rated current and rated power is suddenly added. After the voltage and power are stable, read the three-phase line voltage, three-phase power value, and auxiliary power output. Then suddenly unload this load. During the process of sudden addition and unloading, use an oscilloscope to shoot the three-phase line voltage and the output voltage of the voltage converter, and ensure that the stable state is captured. Before the test, use the method of shooting the diagram to check the simultaneity of the three-phase closing of the switch. The time difference between the closing and breaking of each contact should not be greater than 15 electrical degrees. Measure the three-phase line voltage when the load suddenly changes from the oscilloscope, and obtain the envelope of the three-phase line voltage peak-to-peak value: Then divide the time scale into several equal parts, calculate the average value of the three-phase peak-to-peak value at the same time, and draw this average value into the U change curve (see Figure 2) and the waveform diagram of the voltage from sudden drop to recovery to (100+3)%U. The length L and 1, mm voltage solution adjustment rate 84 and 8-calculate yabZxz.net
Uaymas-Un
Uaym-Ug
The voltage recovery time t and t are calculated by formula (14a) and formula (4b): taln
Where: L
Oscilloscope time grip [s length, mm
Voltage adjustment time and voltage recovery time are measured by adding or unloading load test values 13a)
136)
Measure the maximum output DC voltage of the speed-to-voltage converter when the load suddenly changes from the oscilloscope, as well as the voltage value after recovery and the waveform length Lgmm from the moment of sudden change to the voltage recovery to (1003)%U. The rate adjustment rate is calculated by formula 151: ayr-u
The recovery time of the dependent rate is calculated by formula (16]
5.8 The measurement of the unit popping noise is carried out in accordance with the relevant provisions of GB10069. The unit is installed in a rigid installation manner, and the configuration of the beeping points is based on the measurement point configuration of the equivalent square envelope method with the unit as a whole. 5.9 The unit vibration measurement is carried out in accordance with the relevant provisions of GB10068. The unit is installed in a rigid installation manner, and the operating values of the traction motor and the synchronous generator are measured respectively: the maximum value of the effective value of the operating continuity is used for assessment 5
JB/T8982
1) Actual additional charge||tt| |Electricity consumption A center
Voltage stability diagram AU
b) Sudden load unloading
Figure 2 Sudden load, real load voltage waveform
510 The overspeed test, voltage resistance test, short mechanical strength test and impulse voltage resistance test of each motor in the power supply system shall be carried out in accordance with the provisions of the corresponding test method standards 6 Inspection rules
61 The power supply system must be debugged and can only be released after reaching the specified indicators, and it should be accompanied by a product control certificate and inspection test data. The inspection test data shall at least include 4.2, 4.3, 4.4 and 45 of this standard. 6.2 In the power supply system, each motor and control cabinet shall be inspected and tested according to the customer's own standards 7 Marking, packaging and quality assurance period
7.1 The power supply system and its motors and control cabinets shall be fixed with nameplates in obvious positions. The nameplate material and the marking method on the nameplate should ensure that the characters are connected easily during the entire service life of the power system. 7.2 The unit and control unit should ensure that they will not be damaged by improper packaging under normal transportation. 7.3 The text and logo on the outside of the packing box should be neat and tidy, and the contents are as follows: a) Name of the shipping station and manufacturer:
b) Name of the receiving station and receiving unit (except for self-pickup: 6
JB/T8982
c) Net weight of the equipment and gross weight together with the packing box, production date: d) Size of the packing box:
e) There should be words or graphics such as "Handle with care", "Do not turn upside down", "Avoid moisture" on the outside of the packing box, and the graphics should comply with the provisions of GB191.
7.4 The power supply system should be stored in a dry, ventilated place without corrosive gas. 7.5 Random documents include:
e) Operation and maintenance instructions of the power supply system: Product qualification and inspection test data:
e) Packing list and other documents required by the user (should be specified in the contract) 7.6 Under the condition that the user uses and stores it correctly according to the manufacturer's operation instructions, the manufacturer should ensure that the power supply system can operate well within a period of no more than one and a half years from the date of shipment from the manufacturer, and the service life does not exceed one year. If the power supply system is damaged or cannot work properly due to poor quality within this specified time, the manufacturer will repair or replace parts for the user free of charge. 7
JB/T8982
Yanjing880b1230
19XX Nest XX Cabin
100044
Dai Duan x/X
Rectangle XXX.XXX
19XX Nest XX Ridge
Purchase XXX.XX Guest
Pengxian Extreme Key Sticker7 Determination of regulation rate and recovery time when voltage and power drop)
(12)
The power system is running without load, the adjustment frequency is 50Hz or 60Hz respectively, the voltage is the rated value, and a constant impedance three-phase symmetrical load with rated current and rated power is suddenly added. After the voltage and power are stable, read the three-phase line voltage, three-phase power value, and auxiliary power output. Then suddenly unload this load. During the process of sudden addition and unloading, use an oscilloscope to shoot the three-phase line voltage and the output voltage of the voltage converter, and ensure that the stable state is captured. Before the test, use the method of shooting the diagram to check the simultaneity of the three-phase closing of the switch. The time difference between the closing and breaking of each contact should not be greater than 15 electrical degrees. Measure the three-phase line voltage when the load suddenly changes from the oscilloscope, and obtain the envelope of the three-phase line voltage peak-to-peak value: Then divide the time scale into several equal parts, calculate the average value of the three-phase peak-to-peak value at the same time, and draw this average value into the U change curve (see Figure 2) and the waveform diagram of the voltage from sudden drop to recovery to (100+3)%U. The length L and 1, mm voltage solution adjustment rate 84 and 8-calculate ya
Uaymas-Un
Uaym-Ug
The voltage recovery time t and t are calculated by formula (14a) and formula (4b): taln
Where: L
Oscilloscope time grip [s length, mm
Voltage adjustment time and voltage recovery time are measured by adding or unloading load test values 13a)
136)
Measure the maximum output DC voltage of the speed-to-voltage converter when the load suddenly changes from the oscilloscope, as well as the voltage value after recovery and the waveform length Lgmm from the moment of sudden change to the voltage recovery to (1003)%U. The rate adjustment rate is calculated by formula 151: ayr-u
The recovery time of the dependent rate is calculated by formula (16]
5.8 The measurement of the unit popping noise is carried out in accordance with the relevant provisions of GB10069. The unit is installed in a rigid installation manner, and the configuration of the beeping points is based on the measurement point configuration of the equivalent square envelope method with the unit as a whole. 5.9 The unit vibration measurement is carried out in accordance with the relevant provisions of GB10068. The unit is installed in a rigid installation manner, and the operating values of the traction motor and the synchronous generator are measured respectively: the maximum value of the effective value of the operating continuity is used for assessment 5
JB/T8982
1) Actual additional charge||tt| |Electricity consumption A center
Voltage stability diagram AU
b) Sudden load unloading
Figure 2 Sudden load, real load voltage waveform
510 The overspeed test, voltage resistance test, short mechanical strength test and impulse voltage resistance test of each motor in the power supply system shall be carried out in accordance with the provisions of the corresponding test method standards 6 Inspection rules
61 The power supply system must be debugged and can only be released after reaching the specified indicators, and it should be accompanied by a product control certificate and inspection test data. The inspection test data shall at least include 4.2, 4.3, 4.4 and 45 of this standard. 6.2 In the power supply system, each motor and control cabinet shall be inspected and tested according to the customer's own standards 7 Marking, packaging and quality assurance period
7.1 The power supply system and its motors and control cabinets shall be fixed with nameplates in obvious positions. The nameplate material and the marking method on the nameplate should ensure that the characters are connected easily during the entire service life of the power system. 7.2 The unit and control unit should ensure that they will not be damaged by improper packaging under normal transportation. 7.3 The text and logo on the outside of the packing box should be neat and tidy, and the contents are as follows: a) Name of the shipping station and manufacturer:
b) Name of the receiving station and receiving unit (except for self-pickup: 6
JB/T8982
c) Net weight of the equipment and gross weight together with the packing box, production date: d) Size of the packing box:
e) There should be words or graphics such as "Handle with care", "Do not turn upside down", "Avoid moisture" on the outside of the packing box, and the graphics should comply with the provisions of GB191.
7.4 The power supply system should be stored in a dry, ventilated place without corrosive gas. 7.5 Random documents include:
e) Operation and maintenance instructions of the power supply system: Product qualification and inspection test data:
e) Packing list and other documents required by the user (should be specified in the contract) 7.6 Under the condition that the user uses and stores it correctly according to the manufacturer's operation instructions, the manufacturer should ensure that the power supply system can operate well within a period of no more than one and a half years from the date of shipment from the manufacturer, and the service life does not exceed one year. If the power supply system is damaged or cannot work properly due to poor quality within this specified time, the manufacturer will repair or replace parts for the user free of charge. 7
JB/T8982
Yanjing880b1230
19XX Nest XX Cabin
100044
Dai Duan x/X
Rectangle XXX.XXX
19XX Nest XX Ridge
Purchase XXX.XX Guest
Pengxian Extreme Key Sticker5 Random documents include:
company) operation and maintenance instructions for the power supply system: product qualification and inspection test data:
e) packing list and other documents required by the user (should be specified in the contract) 7.6 Under the condition that the user uses and stores the power supply system correctly according to the manufacturer's operation instructions, the manufacturer shall ensure that the power supply system can operate well within a period of no more than one and a half years from the date of shipment from the manufacturer, including a service life of no more than one year. If the power supply system is damaged or fails to work due to poor quality within this specified time, the manufacturer shall repair or replace parts for the user free of charge. 7
JB/T8982
Yanjing880b1230
19XX Nest XX Cabin
100044
Dai Duan x/X
Rectangle XXX.XXX
19XX Nest XX Ridge
Purchase XXX.XX Guest
Pengxian Extreme Key Sticker5 Random documents include:
company) operation and maintenance instructions for the power supply system: product qualification and inspection test data:
e) packing list and other documents required by the user (should be specified in the contract) 7.6 Under the condition that the user uses and stores the power supply system correctly according to the manufacturer's operation instructions, the manufacturer shall ensure that the power supply system can operate well within a period of no more than one and a half years from the date of shipment from the manufacturer, including a service life of no more than one year. If the power supply system is damaged or fails to work due to poor quality within this specified time, the manufacturer shall repair or replace parts for the user free of charge. 7
JB/T8982
Yanjing880b1230
19XX Nest XX Cabin
100044
Dai Duan x/X
Rectangle XXX.XXX
19XX Nest XX Ridge
Purchase XXX.XX Guest
Pengxian Extreme Key Sticker
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.