NY 663-2003 Quality classification of micro hydroelectric power generation equipment
Some standard content:
NY663—2003
This standard is formulated for the improvement of the air volume of micro hydropower products. The standard is compiled based on the current situation of hydropower product production and development in my country. This standard is compatible with B/T17522—1968 Technical requirements for micro hydropower equipment 3. GB/717523B1SS8 Micro hydropower equipment test method. This standard is issued by the Ministry of Agriculture Science and Technology and is issued by the Ministry of Agriculture Nanjing Institute of Information Technology, Ministry of Agriculture Micro Hydropower Equipment Inspection Center: This standard is entrusted to the Agricultural Hydropower Equipment Quality Supervision and Inspection Center for interpretation. 1 Standard
Quality classification of micro hydroelectric equipment
NY6632003
This standard specifies the energy indicators of micro hydroelectric equipment (abbreviated as hydroelectric), the classification of information indicators related to use, as well as test methods and judgment methods.
This standard applies to various types of micro hydroelectric equipment of 0k and above: 1Gk and above, independently operated hydroelectric power generation equipment.
2 Normative reference documents
The following documents have become the system of this standard by reference: All the documents cited herein, all subsequent amendments (excluding the content) or revised versions are not applicable to this standard; however, it is studied whether the updated versions of these documents can be used according to the agreement of this standard. For all undated reference documents, the latest version shall apply to this standard. B/T175221998 Basic Technical Requirements for Micro Hydroelectric Equipment GH723-Test Method for Micro Hydroelectric Equipment 3 Terms and Definitions
The following terms and definitions apply to this standard. 3.1
Rated water lead
The standard water head of a micro-hydroelectric product specified in the product specification or instruction manual. When the product specification or instruction manual specifies the water head range, the maximum minimum water head shall be used as the inspection receipt.
Explicitly stated power slenalvepower
The enterprise shall specify the rated power of the machine in the specification of its micro-hydroelectric product under the rated conditions. When the product specification or instruction manual specifies the rated power, the maximum minimum water head shall be used as the inspection receipt. 33
ratedlnad
Rated load
The load is in the form of pure resistance, and its value is the average power rate specified by the enterprise. 3.4
Rated working condition: The condition in which the micro hydro unit is operating under the rated head and rated load. 3.5
Indicated voltage: The rated voltage specified by the micro hydro manufacturer on the product specification sheet. 3.6
Determined flux: The rated flux specified by the micro hydro manufacturer on the product specification sheet. NY663—2003
ostensive flux: The specified flux specified by the manufacturer on its hydro products or in the specification sheet. When a specification is given, the maximum value is used as the measurement basis 4 General Provisions
4.1 Purpose
Standardize the micro-hydropower market, promote the technological progress of micro-hydropower and bring micro-hydropower to the international market 4.2 Diagnosis and classification The conditions that should be met are: a) The inspected products should exceed the appraisal of the local management team at or above the prefecture level and pass the inspection and supervision of the ministry, provincial level and above professional insurance institutions, and the patented micro-hydropower TV should also pass the appraisal! 6) The inspected product should have a certain production batch (products produced by full-term batch production process) should have a suspension period of more than 4.3 Qualified unit damage test machine: Product instruction manual: User quick use report (not less than 3 months) Pay the specified fee; When the operational specifications of the inspected product are obviously different from those of the inspected product, supporting accessories: 4.4 Specific indicators Power: Output medium pressure: Output frequency, Thermal efficiency: Quantity:
No-load current waveform distortion
Qualitative standard
Appearance (including appearance quality, brand name, packaging, etc.; Insulation resistance:
Voltage;
No-load voltage setting range: only for generator)?
Time
Overspeed:
Road agent overrunning:
Advanced use:
Maintenance and repair:
Electric transmission interference:
Interference test:
4.6 Judgment method
The judgment method is divided into two parts: single technical index judgment and comprehensive judgment. If the overall index is not met, the product is judged as a standard product: if the single index is qualified, the comprehensive judgment is made. Comprehensive judgment is to quantify the qualitative indicators: then assign weight coefficients to the new indicators, and calculate the comprehensive score to distinguish the quality of the inspected products: the total score is 0.81 for superior products, and 0.80 for qualified products. 5 Order indicators and their classification standards 5.1 Rated output power When the ratio of output power to indicated power is greater than 0.1, it is an unqualified product! b) When the ratio of output power to indicated power is less than 0.85, it is a qualified product; when the ratio of output power to indicated power is less than 0.95, it is an excellent product. 5.2 Rated output voltage The rated output voltage of NY663-2003 refers to the actual output voltage of the micro-water device at the rated water head and rated annual load. This standard uses the ratio of actual output voltage to the product's indicated rated voltage as a classification indicator, and the classification is as follows:? When the ratio of the output voltage to the indicated rated voltage is 1 or 10%, it is an unqualified product. b) When the ratio of the output voltage to the indicated rated voltage is 1=%, and 110: it is a qualified product. c) When the ratio of the output voltage to the indicated rated voltage is 10, and 17%, it is a superior product. 5.3 Rated output frequency
The rated output frequency refers to the actual output frequency of the micro-hydropower plant at the rated water temperature and the rated water temperature. This standard uses the difference between the actual output frequency and the indicated frequency of the product as the quality standard, and the classification is as follows: a) When the absolute value of the difference between the output frequency and the indicated frequency is Ta, it is unqualified! b) When the absolute value of the difference between the output frequency and the indicated frequency is 4Hz, it is a qualified product: e) When the absolute value of the difference between the output frequency and the indicated frequency is 4Hz, it is a superior product. 5.4 Whole machine efficiency
Whole machine efficiency refers to the efficiency of the machine at a certain head and a certain load. This standard uses efficiency as a quantitative indicator. 5.4.1 Reaction unit
The efficiency indicators of the reaction unit are given according to the power level: n) Th level unit:
1) The unit efficiency is 0.45, which is an unqualified product; 2) The unit efficiency is greater than 0.45, which is a qualified product: 3] The unit efficiency is 0.5U, which is a superior product.
h) Unit efficiency:
1 Unit efficiency 0.35, for qualified products:
2) Unit efficiency card 5, for qualified products
3) Unit efficiency: 4 is in the excellent stage.
5.4.2 Impact type unit
Impact type unit is divided into different efficiency indexes according to water head: Water head 2m
1) Unit differential efficiency 0.40 is a non-qualified product
2) Torque efficiency is standard
3) Unit efficiency 0.45 is a superior product
b) Water head 12m20:
1) Unit efficiency 0.5, which is a non-qualified product
2) Unit efficiency 20.35, which is a superior product; 3) Unit efficiency 0.10, which is a superior product.
Water head 121:
1) Unit efficiency 30 is a non-qualified product!
NY663—2003
2) The unit correction efficiency is .8, which is a qualified product:
3) The unit efficiency is *0.35. It is a superior product.
55 The voltage adjustment rate of the heat exchanger refers to the ratio of the actual output voltage of the unit to the rated voltage when the load changes from wide load to rated load under rated water conditions: This standard uses this ratio as a quality indicator. The grades are as follows: 1) When the output adjustment rate is 1%, or 16%, it is a qualified product: 2) When the steady-state voltage adjustment rate is 10%, and more than 15% 5.5 for superior products
) When the indicated temperature rise exceeds the allowable salinity level, the score is 3.00 for non-qualified products); h) When the temperature rise meets the allowable salinity value, the score is U for qualified products. 5.7 Rated flow
Rated flow refers to the actual flow of hydropower under rated working conditions. This standard uses the ratio of actual rated flow to indicated flow as the station index. For example:
a) When the ratio of actual rated flow to indicated flow is 1.0, it is an unqualified product. b) When the ratio of the actual rated maximum to the indicated flow is 1.1%, it is a qualified product; ) When the ratio of the actual rated flow to the indicated flow is .5, it is a superior product. The voltage waveform positive random change rate
must be above the standard and must be tested in this way.
The load waveform chord change is abnormal -5 to be qualified (points step \9>: the product is classified as unqualified (points step.0) 0 Qualitative indicators are divided into continental and non-conforming indicators. In the two cases, the non-measurable qualitative indicators are divided into four levels, and the grades from excellent to inferior are 1.0, C.83, 3.50, and U.0 respectively; the measurable qualitative indicators are divided into two levels, and the qualified ones are 0.00 and the unqualified ones are 0.00. The grading method of each qualitative standard is as follows:
6.1 Appearance
The external quality certificate is divided into 0.00 points (0.8 points) and 0.60 points (0.3 points)). Insulation resistance
Single unit insulation resistance M Unit insulation M qualified product value is not satisfied with the cold case standard is unqualified product < the standard value is..
63 For voltage test
The teacher has passed the withstand voltage test and the score is; the power-on test is unqualified product (the score is) 6.4 No-load voltage setting range (limited to excitation synchronous generators) The potential change range is the same as the self-state voltage after the lake adjustment range is a qualified product (the score is 0.8 does not meet the above conditions for the standard product is divided into,||tt ||65 Short-time voltage test
Those who encounter short-time voltage rise test are qualified products (score is .): those who fail to pass short-time voltage rise test are unqualified products (score is .)
66 Overspeed test
Those who pass overspeed test are qualified products (score is 0.00); those who pass overspeed test are unqualified products (score is .3).
6.8 Safety inspection
Y663—2003
Those who pass safety inspection are qualified products (score is 0)1Those who pass table inspection are unqualified products (score is 3.00)6. 9. Convenience of use inspection
The convenience of use is divided into four levels: convenient (1.0), relatively convenient (8), inconvenient <, very inconvenient (0.00).
6.10 Maintenance and repair convenience inspection
The maintenance efficiency is divided into four levels: efficient (1.00), relatively convenient (0), cost-saving (0.60), very inconvenient (0).
6.11 Electromagnetic interference test
Pass the electromagnetic interference test The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.12 The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.13 The qualified products are as follows! The qualified products are as follows! 6.14 The qualified products are as follows! The qualified products are as follows! 6.15 The qualified products are as follows! The qualified products are as follows! 6.16 The qualified products are as follows! The qualified products are as follows! 6.17 The qualified products are as follows! 6.18 The qualified products are as follows! 6.19 The qualified products are as follows! 7.10 The qualified products are as follows! 7.11 The qualified products are as follows! 7.12 The qualified products are as follows! 7.13 The qualified products are as follows! 7.14 The qualified products are as follows! 7.15 The qualified products are as follows! 7.16 The qualified products are as follows! 7.17 The qualified products are as follows! 7.18 The qualified products are as follows! 7.19 ... 7.4 Whole machine efficiency
At a certain water head, measure the water head under a certain load, and the flow rate is half the work of the micro-motor. The digital machine efficiency is calculated. 7.5 Steady-state voltage of the whole machine
Under the rated water head condition, the load flashes for 1m, and the three voltages are measured under the conditions of 75%, 50%, 25%, 25%, 50%, and 731005 respectively. The steady-state voltage is adjusted by calculating the low and high voltage with the fixed water. 7.6 Mixed start
Before the generator is started and after reaching thermal equilibrium (about 21.), measure the resistance value respectively and calculate the function value: This test is carried out on the generator test track. 7.7, the rated current is measured in the determination of the boarding efficiency, the measured power signal is the rated current. 1. The voltage waveform sinusoidal distortion rate is tested with an electric energy comprehensive tester. This instrument can give 1~20 times the wave straight or: 29 times the wave to wave ratio, the formula is the waveform spray rate.
7.9 Appearance
According to the T12-. node test method.
7.10 Absolute peak resistance
Use 500 or 100 meters to test,
7.11 Withstand voltage test
The voltage test is a special test for generators. And the voltage test has a Complete damage resistance, those who have fully returned to the state power test can be exempted from the city voltage test and are allowed to pass the combustion control! , NY663-2003
7.12 Determination of no-load voltage setting range
This test is limited to the synchronous generator. Only the maximum and minimum values of the no-load voltage setting need to be measured. This test should be carried out on the vehicle generator test bench,
7.13 Determination of cold and hot state voltage variation
After the generator is started, the rated voltage value is measured, and the rated voltage is taken after reaching the hot balance. The difference between the two values is used to reflect the cold and hot voltage variation. In the two tests, no adjustment is allowed to the generator. This test is suitable for the generator test bench. 7.14 Short-time voltage rise test
The no-load voltage rise rate of the generator is 130% of the rated voltage, lasting for min, and there is no mechanical or electrical damage: This item should be carried out on the generator test bench.
7.15 Overspeed test
No-load, the speed is 12% of the rated speed. After 2 minutes, stop the generator and check whether there is mechanical or electrical damage. 7.1E Short-circuit test
No-load, adjust the voltage to 0% of the rated voltage, and check whether there is mechanical or electrical damage. 7.17 Safety inspection
Check whether the generator leads are exposed, and the grounding is reliable. 7. 18 Performance inspection
Check whether the unit is started and stopped, and whether it is easy to operate. 7.19 Performance inspection of reactor maintenance
Check whether the unit is properly operated (adding lubricant, cleaning and replacing carbon, etc.) 7.20 Electromagnetic interference test
Use a color TV to check whether the receiving TV is correct. For micro-water cores installed in electronic or electrical controllers, the TV should be placed at a high voltage 2 meters away from the power supply. 7.21 Flyway test
Is the hydropower unit working within the rated working range? min. After the unit is fully charged, the load will be removed. After 2 min., check whether the unit has mechanical or electrical damage.
8 Judgment method
8.1 Judgment of single technical indicators
The test results should be checked according to the standard. If the total score is 0.0, the product is judged as unqualified: when the test score is 0.0, it can be judged as a comprehensive product.
8.2 Comprehensive judgment
E.2.1 Combined judgment method
Use the segmented judgment results to get the score K, and use the weight coefficient A to calculate the final score R of the product. 8.2.2 Weight coefficient allocation principle
The double coefficient A is determined by the participating quality grading specialists according to the degree of importance of the assessment items. The effective weight coefficient distribution should satisfy the formula [1],
day. 2.3 Calculation of the score of quantitative indicators
The score of the quantitative indicator is calculated by subtracting the observed value of the superior product from the actual standard number, and the qualified product judgment standard value is calculated using (2>. E:
K, =--2 5(G, -55
In the formula:
is the score of the first actual quantitative indicator!
is the observed value of the top quantitative indicator:
is the standard number of the first fixed indicator for qualified products, and
is the standard value of the first fixed indicator for superior products. Note: When the remaining step T value is observed, the observation is directly processed, that is, K, = 1, 8.2.4 Calculation of the comprehensive judgment score
is the comprehensive judgment score using the formula <3 ) calculated. AK
In the formula:
K——Comprehensive judgment score:
A: Weight of the first indicator 1
K. The first indicator score should be
8.3 Result judgment
NY653—20C3
Comprehensive judgment score A3.30 is a superior product: K0.H. and 0.65 is a qualified product; those with unqualified individual indicators are judged as unqualified products.Eat, for superior products, 55 empty numbers voltage waveform positive random change rate
all must be above the standard test
load current waveform on the string change is abnormal -5 is qualified (score step \9>: convex is classified as unqualified products (score.0) 0 qualitative indicators of its classification standard
fixed indicators are divided into two types of measurement and unmeasured conditions, the qualitative indicators that cannot be measured are divided into four levels, the grade from excellent to poor is 1.0 respectively, C.83, 3.50, U.0; Measurable qualitative indicators are divided into two grades, qualified first .N, unqualified 0.00. The classification method of each qualitative standard is as follows:
6.1 Appearance
The external quality certificate is divided into a score of .00, good (score 0.8), not very good (score 0.60), very bad (score .3))
5.2 Insulation resistance
Single unit insulation M unit insulation M qualified product If the value is not satisfied, it is a defective product. <The value is..
63 For voltage test
, the score is; the power-on test is unqualified product (the score is) 6.4 No-load voltage setting range (limited to excitation synchronous generators) The potential voltage adjustment range is equal to the self-state voltage after the lake adjustment rate range is a qualified product (the score is 0.8). Products that do not meet the above conditions are divided into,
65 Short-time voltage increase test
Those that have encountered short circuit and high temperature are qualified products (score is .): those that have not passed the short-time high-speed test are unqualified products (score is .)
66 Overspeed test
Those that have passed the overspeed test are qualified products (score is 0.00); those that have passed the overspeed test are qualified products (score is .3); those that have not passed the mechanical strength test are unqualified products (score is .3).
6.8 Safety inspection
Y663—2003
Those that have passed the safety inspection are qualified products (score is 0) 1Those that have passed the table inspection are unqualified products (score is 3.00) 6. 9. Convenience of use inspection
The convenience of use is divided into four levels: convenient (1.0), relatively convenient (8), inconvenient <, very inconvenient (0.00).
6.10 Maintenance and repair convenience inspection
The maintenance efficiency is divided into four levels: efficient (1.00), relatively convenient (0), cost-saving (0.60), very inconvenient (0).
6.11 Electromagnetic interference test
Pass the electromagnetic interference test The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.12 The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.13 The qualified products are as follows! The qualified products are as follows! 6.14 The qualified products are as follows! The qualified products are as follows! 6.15 The qualified products are as follows! The qualified products are as follows! 6.16 The qualified products are as follows! The qualified products are as follows! 6.17 The qualified products are as follows! 6.18 The qualified products are as follows! 6.19 The qualified products are as follows! 7.10 The qualified products are as follows! 7.11 The qualified products are as follows! 7.12 The qualified products are as follows! 7.13 The qualified products are as follows! 7.14 The qualified products are as follows! 7.15 The qualified products are as follows! 7.16 The qualified products are as follows! 7.17 The qualified products are as follows! 7.18 The qualified products are as follows! 7.19 ... 7.4 Whole machine efficiency
At a certain water head, measure the water head under a certain load, and the flow rate is half the work of the micro-motor. The digital machine efficiency is calculated. 7.5 Steady-state voltage of the whole machine
Under the rated water head condition, the load flashes for 1m, and the three voltages are measured under the conditions of 75%, 50%, 25%, 25%, 50%, and 731005 respectively. The steady-state voltage is adjusted by calculating the low and high voltage with the fixed water. 7.6 Mixed start
Before the generator is started and after reaching thermal equilibrium (about 21.), measure the resistance value respectively and calculate the function value: This test is carried out on the generator test track. 7.7, the rated current is measured in the determination of the boarding efficiency, the measured power signal is the rated current. 1. The voltage waveform sinusoidal distortion rate is tested with an electric energy comprehensive tester. This instrument can give 1~20 times the wave straight or: 29 times the wave to wave ratio, the formula is the waveform spray rate.
7.9 Appearance
According to the T12-. node test method.
7.10 Absolute peak resistance
Use 500 or 100 meters to test,
7.11 Withstand voltage test
The voltage test is a special test for generators. And the voltage test has a Complete damage resistance, those who have fully returned to the state power test can be exempted from the city voltage test and are allowed to pass the combustion control! , NY663-2003
7.12 Determination of no-load voltage setting range
This test is limited to the synchronous generator. Only the maximum and minimum values of the no-load voltage setting need to be measured. This test should be carried out on the vehicle generator test bench,
7.13 Determination of cold and hot state voltage variation
After the generator is started, the rated voltage value is measured, and the rated voltage is taken after reaching the hot balance. The difference between the two values is used to reflect the cold and hot voltage variation. In the two tests, no adjustment is allowed to the generator. This test is suitable for the generator test bench. 7.14 Short-time voltage rise test
The no-load voltage rise rate of the generator is 130% of the rated voltage, lasting for min, and there is no mechanical or electrical damage: This item should be carried out on the generator test bench.
7.15 Overspeed test
No-load, the speed is 12% of the rated speed. After 2 minutes, stop the generator and check whether there is mechanical or electrical damage. 7.1E Short-circuit test
No-load, adjust the voltage to 0% of the rated voltage, and check whether there is mechanical or electrical damage. 7.17 Safety inspection
Check whether the generator leads are exposed, and the grounding is reliable. 7. 18 Performance inspection
Check whether the unit is started and stopped, and whether it is easy to operate. 7.19 Performance inspection of reactor maintenance
Check whether the unit is properly operated (adding lubricant, cleaning and replacing carbon, etc.) 7.20 Electromagnetic interference test
Use a color TV to check whether the receiving TV is correct. For micro-water cores installed in electronic or electrical controllers, the TV should be placed at a high voltage 2 meters away from the power supply. 7.21 Flyway test
Is the hydropower unit working within the rated working range? min. After the unit is fully charged, the load will be removed. After 2 min., check whether the unit has mechanical or electrical damage.
8 Judgment method
8.1 Judgment of single technical indicators
The test results should be checked according to the standard. If the total score is 0.0, the product is judged as unqualified: when the test score is 0.0, it can be judged as a comprehensive product.
8.2 Comprehensive judgment
E.2.1 Combined judgment method
Use the segmented judgment results to get the score K, and use the weight coefficient A to calculate the final score R of the product. 8.2.2 Weight coefficient allocation principle
The double coefficient A is determined by the participating quality grading specialists according to the degree of importance of the assessment items. The effective weight coefficient distribution should satisfy the formula [1],
day. 2.3 Calculation of the score of quantitative indicators
The score of the quantitative indicator is calculated by subtracting the observed value of the superior product from the actual standard number, and the qualified product judgment standard value is calculated using (2>. E:
K, =--2 5(G, -55
In the formula:
is the score of the first actual quantitative indicator!
is the observed value of the top quantitative indicator:
is the standard number of the first fixed indicator for qualified products, and
is the standard value of the first fixed indicator for superior products. Note: When the remaining step T value is observed, the observation is directly processed, that is, K, = 1, 8.2.4 Calculation of the comprehensive judgment score
is the comprehensive judgment score using the formula <3 ) calculated. AK
In the formula:
K——Comprehensive judgment score:
A: Weight of the first indicator 1
K. The first indicator score should be
8.3 Result judgment
NY653—20C3
Comprehensive judgment score A3.30 is a superior product: K0.H. and 0.65 is a qualified product; those with unqualified individual indicators are judged as unqualified products.Eat, for superior products, 55 empty numbers voltage waveform positive random change rate
all must be above the standard test
load current waveform on the string change is abnormal -5 is qualified (score step \9>: convex is classified as unqualified products (score.0) 0 qualitative indicators of its classification standard
fixed indicators are divided into two types of measurement and unmeasured conditions, the qualitative indicators that cannot be measured are divided into four levels, the grade from excellent to poor is 1.0 respectively, C.83, 3.50, U.0; Measurable qualitative indicators are divided into two grades, qualified first .N, unqualified 0.00. The classification method of each qualitative standard is as follows:
6.1 Appearance
The external quality certificate is divided into a score of .00, good (score 0.8), not very good (score 0.60), very bad (score .3))
5.2 Insulation resistance
Single unit insulation M unit insulation M qualified product If the value is not satisfied, it is a defective product. <The value is..
63 For voltage test
, the score is; the power-on test is unqualified product (the score is) 6.4 No-load voltage setting range (limited to excitation synchronous generators) The potential voltage adjustment range is equal to the self-state voltage after the lake adjustment rate range is a qualified product (the score is 0.8). Products that do not meet the above conditions are divided into,
65 Short-time voltage increase test
Those that have encountered short circuit and high temperature are qualified products (score is .): those that have not passed the short-time high-speed test are unqualified products (score is .)
66 Overspeed test
Those that have passed the overspeed test are qualified products (score is 0.00); those that have passed the overspeed test are qualified products (score is .3); those that have not passed the mechanical strength test are unqualified products (score is .3).
6.8 Safety inspection
Y663—2003
Those that have passed the safety inspection are qualified products (score is 0) 1Those that have passed the table inspection are unqualified products (score is 3.00) 6. 9. Convenience of use inspection
The convenience of use is divided into four levels: convenient (1.0), relatively convenient (8), inconvenient <, very inconvenient (0.00).
6.10 Maintenance and repair convenience inspection
The maintenance efficiency is divided into four levels: efficient (1.00), relatively convenient (0), cost-saving (0.60), very inconvenient (0).
6.11 Electromagnetic interference test
Pass the electromagnetic interference test The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.12 The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.13 The qualified products are as follows! The qualified products are as follows! 6.14 The qualified products are as follows! The qualified products are as follows! 6.15 The qualified products are as follows! The qualified products are as follows! 6.16 The qualified products are as follows! The qualified products are as follows! 6.17 The qualified products are as follows! 6.18 The qualified products are as follows! 6.19 The qualified products are as follows! 7.10 The qualified products are as follows! 7.11 The qualified products are as follows! 7.12 The qualified products are as follows! 7.13 The qualified products are as follows! 7.14 The qualified products are as follows! 7.15 The qualified products are as follows! 7.16 The qualified products are as follows! 7.17 The qualified products are as follows! 7.18 The qualified products are as follows! 7.19 ... 7.4 Whole machine efficiency
At a certain water head, measure the water head under a certain load, and the flow rate is half the work of the micro-motor. The digital machine efficiency is calculated. 7.5 Steady-state voltage of the whole machine
Under the rated water head condition, the load flashes for 1m, and the three voltages are measured under the conditions of 75%, 50%, 25%, 25%, 50%, and 731005 respectively. The steady-state voltage is adjusted by calculating the low and high voltage with the fixed water. 7.6 Mixed start
Before the generator is started and after reaching thermal equilibrium (about 21.), measure the resistance value respectively and calculate the function value: This test is carried out on the generator test track. 7.7, the rated current is measured in the determination of the boarding efficiency, the measured power signal is the rated current. 1. The voltage waveform sinusoidal distortion rate is tested with an electric energy comprehensive tester. This instrument can give 1~20 times the wave straight or: 29 times the wave to wave ratio, the formula is the waveform spray rate.
7.9 Appearance
According to the T12-. node test method.
7.10 Absolute peak resistance
Use 500 or 100 meters to test,
7.11 Withstand voltage test
The voltage test is a special test for generators. And the voltage test has a Complete damage resistance, those who have fully returned to the state power test can be exempted from the city voltage test and are allowed to pass the combustion control! , NY663-2003
7.12 Determination of no-load voltage setting range
This test is limited to the synchronous generator. Only the maximum and minimum values of the no-load voltage setting need to be measured. This test should be carried out on the vehicle generator test bench,
7.13 Determination of cold and hot state voltage variation
After the generator is started, the rated voltage value is measured, and the rated voltage is taken after reaching the hot balance. The difference between the two values is used to reflect the cold and hot voltage variation. In the two tests, no adjustment is allowed to the generator. This test is suitable for the generator test bench. 7.14 Short-time voltage rise test
The no-load voltage rise rate of the generator is 130% of the rated voltage, lasting for min, and there is no mechanical or electrical damage: This item should be carried out on the generator test bench.
7.15 Overspeed test
No-load, the speed is 12% of the rated speed. After 2 minutes, stop the generator and check whether there is mechanical or electrical damage. 7.1E Short-circuit test
No-load, adjust the voltage to 0% of the rated voltage, and check whether there is mechanical or electrical damage. 7.17 Safety inspection
Check whether the generator leads are exposed, and the grounding is reliable. 7. 18 Performance inspection
Check whether the unit is started and stopped, and whether it is easy to operate. 7.19 Performance inspection of reactor maintenance
Check whether the unit is properly operated (adding lubricant, cleaning and replacing carbon, etc.) 7.20 Electromagnetic interference test
Use a color TV to check whether the receiving TV is correct. For micro-water cores installed in electronic or electrical controllers, the TV should be placed at a high voltage 2 meters away from the power supply. 7.21 Flyway test
Is the hydropower unit working within the rated working range? min. After the unit is fully charged, the load will be removed. After 2 min., check whether the unit has mechanical or electrical damage.
8 Judgment method
8.1 Judgment of single technical indicators
The test results should be checked according to the standard. If the total score is 0.0, the product is judged as unqualified: when the test score is 0.0, it can be judged as a comprehensive product.
8.2 Comprehensive judgment
E.2.1 Combined judgment method
Use the segmented judgment results to get the score K, and use the weight coefficient A to calculate the final score R of the product. 8.2.2 Weight coefficient allocation principle
The double coefficient A is determined by the participating quality grading specialists according to the degree of importance of the assessment items. The effective weight coefficient distribution should satisfy the formula [1],
day. 2.3 Calculation of the score of quantitative indicators
The score of the quantitative indicator is calculated by subtracting the observed value of the superior product from the actual standard number, and the qualified product judgment standard value is calculated using (2>. E:
K, =--2 5(G, -55
In the formula:
is the score of the first actual quantitative indicator!
is the observed value of the top quantitative indicator:
is the standard number of the first fixed indicator for qualified products, and
is the standard value of the first fixed indicator for superior products. Note: When the remaining step T value is observed, the observation is directly processed, that is, K, = 1, 8.2.4 Calculation of the comprehensive judgment score
is the comprehensive judgment score using the formula <3 ) calculated. AK
In the formula:
K——Comprehensive judgment score:
A: Weight of the first indicator 1
K. The first indicator score should be
8.3 Result judgment
NY653—20C3
Comprehensive judgment score A3.30 is a superior product: K0.H. and 0.65 is a qualified product; those with unqualified individual indicators are judged as unqualified products.0)0 Qualitative indicators and their classification standards
The unmeasurable qualitative indicators are divided into two types: measurable and unmeasurable. The unmeasurable qualitative indicators are divided into four grades, and the grades from excellent to inferior are 1.0, C.83, 3.50, and U.0 respectively; the measurable qualitative indicators are divided into two grades, the qualified ones are marked as .N, and the unqualified ones are marked as 0.00. The classification method of each qualitative standard is as follows:
6.1 Appearance
The external quality certificate is divided into a score of .00 good (score 0.8 not very good (score 0.60) very bad (score .3)) Sichuan cellar no
5.2 Insulation resistance
Single unit insulation resistance M unit insulation M qualified product value is not satisfied with the cold case standard is unqualified product < the value is..
63 Voltage test
The teacher has passed the withstand voltage test and the score is; the power-on test is unqualified (the score is) 6.4 No-load voltage setting range (limited to excitation synchronous generators) This potential jade replacement range is the same as the first The product with a rate equal to its own state after the lake is a qualified product (the score is 0.8, the product that does not meet the upper air condition is a qualified product (the score is .65 short-time voltage increase test
encounters a short-time increase of the number of months to change the product (the score is.): the product that fails to pass the short-time opening and closing test is an unqualified product (the score is.66 overspeed test
passes the over-speed test is a qualified product (the score is 0.00, 6.7 short-circuit mechanical strength test
passes the short-circuit reading bottom test is a qualified product, and the score is not passed the road machine version strength test is an unqualified product (the score is t. 3.
6.8 Safety inspection
Y663—2003
Those who pass the safety inspection are qualified products (the lowest score is 0) and those who pass the table inspection are unqualified products (the score is 3.00) 6. 9 Convenience inspection
The convenience of use is divided into four levels: convenient (the score is 1.0), relatively convenient (the score is 8), and not convenient < The score is very inconvenient (the score is 0.00).
6.10 Maintenance and repair convenience inspection
The maintenance efficiency is divided into four levels: power (the score is 1.00), relatively convenient (the score is 0), cost reduction (the score is 0.60), and very inconvenient (the score is 0)
6.11 Electromagnetic interference test
Those who pass the electromagnetic interference test are divided into four levels: The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.12 The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.13 The qualified products are as follows! The qualified products are as follows! 6.14 The qualified products are as follows! The qualified products are as follows! 6.15 The qualified products are as follows! The qualified products are as follows! 6.16 The qualified products are as follows! The qualified products are as follows! 6.17 The qualified products are as follows! 6.18 The qualified products are as follows! 6.19 The qualified products are as follows! 7.10 The qualified products are as follows! 7.11 The qualified products are as follows! 7.12 The qualified products are as follows! 7.13 The qualified products are as follows! 7.14 The qualified products are as follows! 7.15 The qualified products are as follows! 7.16 The qualified products are as follows! 7.17 The qualified products are as follows! 7.18 The qualified products are as follows! 7.19 ... 7.4 Whole machine efficiency
At a certain water head, measure the water head under a certain load, and the flow rate is half the work of the micro-motor. The digital machine efficiency is calculated. 7.5 Steady-state voltage of the whole machine
Under the rated water head condition, the load flashes for 1m, and the three voltages are measured under the conditions of 75%, 50%, 25%, 25%, 50%, and 731005 respectively. The steady-state voltage is adjusted by calculating the low and high voltage with the fixed water. 7.6 Mixed start
Before the generator is started and after reaching thermal equilibrium (about 21.), measure the resistance value respectively and calculate the function value: This test is carried out on the generator test track. 7.7, the rated current is measured in the determination of the boarding efficiency, the measured power signal is the rated current. 1. The voltage waveform sinusoidal distortion rate is tested with an electric energy comprehensive tester. This instrument can give 1~20 times the wave straight or: 29 times the wave to wave ratio, the formula is the waveform spray rate.
7.9 Appearance
According to the T12-. node test method.
7.10 Absolute peak resistance
Use 500 or 100 meters to test,
7.11 Withstand voltage test
The voltage test is a special test for generators. And the voltage test has a Complete damage resistance, those who have fully returned to the state power test can be exempted from the city voltage test and are allowed to pass the combustion control! , NY663-2003
7.12 Determination of no-load voltage setting range
This test is limited to the synchronous generator. Only the maximum and minimum values of the no-load voltage setting need to be measured. This test should be carried out on the vehicle generator test bench,
7.13 Determination of cold and hot state voltage variation
After the generator is started, the rated voltage value is measured, and the rated voltage is taken after reaching the hot balance. The difference between the two values is used to reflect the cold and hot voltage variation. In the two tests, no adjustment is allowed to the generator. This test is suitable for the generator test bench. 7.14 Short-time voltage rise test
The no-load voltage rise rate of the generator is 130% of the rated voltage, lasting for min, and there is no mechanical or electrical damage: This item should be carried out on the generator test bench.
7.15 Overspeed test
No-load, the speed is 12% of the rated speed. After 2 minutes, stop the generator and check whether there is mechanical or electrical damage. 7.1E Short-circuit test
No-load, adjust the voltage to 0% of the rated voltage, and check whether there is mechanical or electrical damage. 7.17 Safety inspection
Check whether the generator leads are exposed, and the grounding is reliable. 7. 18 Performance inspection
Check whether the unit is started and stopped, and whether it is easy to operate. 7.19 Performance inspection of reactor maintenance
Check whether the unit is properly operated (adding lubricant, cleaning and replacing carbon, etc.) 7.20 Electromagnetic interference test
Use a color TV to check whether the receiving TV is correct. For micro-water cores installed in electronic or electrical controllers, the TV should be placed at a high voltage 2 meters away from the power supply. 7.21 Flyway test
Is the hydropower unit working within the rated working range? min. After the unit is fully charged, the load will be removed. After 2 min., check whether the unit has mechanical or electrical damage.
8 Judgment method
8.1 Judgment of single technical indicators
The test results should be checked according to the standard. If the total score is 0.0, the product is judged as unqualified: when the test score is 0.0, it can be judged as a comprehensive product.
8.2 Comprehensive judgment
E.2.1 Combined judgment method
Use the segmented judgment results to get the score K, and use the weight coefficient A to calculate the final score R of the product. 8.2.2 Weight coefficient allocation principle
The double coefficient A is determined by the participating quality grading specialists according to the degree of importance of the assessment items. The effective weight coefficient distribution should satisfy the formula [1],
day. 2.3 Calculation of the score of quantitative indicators
The score of the quantitative indicator is calculated by subtracting the observed value of the superior product from the actual standard number, and the qualified product judgment standard value is calculated using (2>. E:
K, =--2 5(G, -55
In the formula:
is the score of the first actual quantitative indicator!
is the observed value of the top quantitative indicator:
is the standard number of the first fixed indicator for qualified products, and
is the standard value of the first fixed indicator for superior products. Note: When the remaining step T value is observed, the observation is directly processed, that is, K, = 1, 8.2.4 Calculation of the comprehensive judgment score
is the comprehensive judgment score using the formula <3 ) calculated. AK
In the formula:
K——Comprehensive judgment score:
A: Weight of the first indicator 1
K. The first indicator score should be
8.3 Result judgment
NY653—20C3
Comprehensive judgment score A3.30 is a superior product: K0.H. and 0.65 is a qualified product; those with unqualified individual indicators are judged as unqualified products.0)0 Qualitative indicators and their classification standards
The unmeasurable qualitative indicators are divided into two types: measurable and unmeasurable. The unmeasurable qualitative indicators are divided into four grades, and the grades from excellent to inferior are 1.0, C.83, 3.50, and U.0 respectively; the measurable qualitative indicators are divided into two grades, the qualified ones are marked as .N, and the unqualified ones are marked as 0.00. The classification method of each qualitative standard is as follows:
6.1 Appearance
The external quality certificate is divided into a score of .00 good (score 0.8 not very good (score 0.60) very bad (score .3)) Sichuan cellar no
5.2 Insulation resistance
Single unit insulation resistance M unit insulation M qualified product value is not satisfied with the cold case standard is unqualified product < the value is..
63 Voltage test
The teacher has passed the withstand voltage test and the score is; the power-on test is unqualified (the score is) 6.4 No-load voltage setting range (limited to excitation synchronous generators) This potential jade replacement range is the same as the first The product with a rate equal to its own state after the lake is a qualified product (the score is 0.8, the product that does not meet the upper air condition is a qualified product (the score is .65 short-time voltage increase test
encounters a short-time increase of the number of months to change the product (the score is.): the product that fails to pass the short-time opening and closing test is an unqualified product (the score is.66 overspeed test
passes the over-speed test is a qualified product (the score is 0.00, 6.7 short-circuit mechanical strength test
passes the short-circuit reading bottom test is a qualified product, and the score is not passed the road machine version strength test is an unqualified product (the score is t. 3.
6.8 Safety inspection
Y663—2003
Those who pass the safety inspection are qualified products (the lowest score is 0) and those who pass the table inspection are unqualified products (the score is 3.00) 6. 9 Convenience inspection
The convenience of use is divided into four levels: convenient (the score is 1.0), relatively convenient (the score is 8), and not convenient < The score is very inconvenient (the score is 0.00).
6.10 Maintenance and repair convenience inspection
The maintenance efficiency is divided into four levels: power (the score is 1.00), relatively convenient (the score is 0), cost reduction (the score is 0.60), and very inconvenient (the score is 0)
6.11 Electromagnetic interference test
Those who pass the electromagnetic interference test are divided into four levels: The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.12 The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.13 The qualified products are as follows! The qualified products are as follows! 6.14 The qualified products are as follows! The qualified products are as follows! 6.15 The qualified products are as follows! The qualified products are as follows! 6.16 The qualified products are as follows! The qualified products are as follows! 6.17 The qualified products are as follows! 6.18 The qualified products are as follows! 6.19 The qualified products are as follows! 7.10 The qualified products are as follows! 7.11 The qualified products are as follows! 7.12 The qualified products are as follows! 7.13 The qualified products are as follows! 7.14 The qualified products are as follows! 7.15 The qualified products are as follows! 7.16 The qualified products are as follows! 7.17 The qualified products are as follows! 7.18 The qualified products are as follows! 7.19 ... 7.4 Whole machine efficiency
At a certain water head, measure the water head under a certain load, and the flow rate is half the work of the micro-motor. The digital machine efficiency is calculated. 7.5 Steady-state voltage of the whole machine
Under the rated water head condition, the load flashes for 1m, and the three voltages are measured under the conditions of 75%, 50%, 25%, 25%, 50%, and 731005 respectively. The steady-state voltage is adjusted by calculating the low and high voltage with the fixed water. 7.6 Mixed start
Before the generator is started and after reaching thermal equilibrium (about 21.), measure the resistance value respectively and calculate the function value: This test is carried out on the generator test track. 7.7, the rated current is measured in the determination of the boarding efficiency, the measured power signal is the rated current. 1. The voltage waveform sinusoidal distortion rate is tested with an electric energy comprehensive tester. This instrument can give 1~20 times the wave straight or: 29 times the wave to wave ratio, the formula is the waveform spray rate.
7.9 Appearance
According to the T12-. node test method.
7.10 Absolute peak resistance
Use 500 or 100 meters to test,
7.11 Withstand voltage test
The voltage test is a special test for generators. And the voltage test has a Complete damage resistance, those who have fully returned to the state power test can be exempted from the city voltage test and are allowed to pass the combustion control! , NY663-2003
7.12 Determination of no-load voltage setting range
This test is limited to the synchronous generator. Only the maximum and minimum values of the no-load voltage setting need to be measured. This test should be carried out on the vehicle generator test bench,
7.13 Determination of cold and hot state voltage variation
After the generator is started, the rated voltage value is measured, and the rated voltage is taken after reaching the hot balance. The difference between the two values is used to reflect the cold and hot voltage variation. In the two tests, no adjustment is allowed to the generator. This test is suitable for the generator test bench. 7.14 Short-time voltage rise test
The no-load voltage rise rate of the generator is 130% of the rated voltage, lasting for min, and there is no mechanical or electrical damage: This item should be carried out on the generator test bench.
7.15 Overspeed test
No-load, the speed is 12% of the rated speed. After 2 minutes, stop the generator and check whether there is mechanical or electrical damage. 7.1E Short-circuit test
No-load, adjust the voltage to 0% of the rated voltage, and check whether there is mechanical or electrical damage. 7.17 Safety inspection
Check whether the generator leads are exposed, and the grounding is reliable. 7. 18 Performance inspection
Check whether the unit is started and stopped, and whether it is easy to operate. 7.19 Performance inspection of reactor maintenance
Check whether the unit is properly operated (adding lubricant, cleaning and replacing carbon, etc.) 7.20 Electromagnetic interference test
Use a color TV to check whether the receiving TV is correct. For micro-water cores installed in electronic or electrical controllers, the TV should be placed at a high voltage 2 meters away from the power supply. 7.21 Flyway test
Is the hydropower unit working within the rated working range? min. After the unit is fully charged, the load will be removed. After 2 min., check whether the unit has mechanical or electrical damage.
8 Judgment method
8.1 Judgment of single technical indicators
The test results should be checked according to the standard. If the total score is 0.0, the product is judged as unqualified: when the test score is 0.0, it can be judged as a comprehensive product.
8.2 Comprehensive judgmentbzxz.net
E.2.1 Combined judgment method
Use the segmented judgment results to get the score K, and use the weight coefficient A to calculate the final score R of the product. 8.2.2 Weight coefficient allocation principle
The double coefficient A is determined by the participating quality grading specialists according to the degree of importance of the assessment items. The effective weight coefficient distribution should satisfy the formula [1],
day. 2.3 Calculation of the score of quantitative indicators
The score of the quantitative indicator is calculated by subtracting the observed value of the superior product from the actual standard number, and the qualified product judgment standard value is calculated using (2>. E:
K, =--2 5(G, -55
In the formula:
is the score of the first actual quantitative indicator!
is the observed value of the top quantitative indicator:
is the standard number of the first fixed indicator for qualified products, and
is the standard value of the first fixed indicator for superior products. Note: When the remaining step T value is observed, the observation is directly processed, that is, K, = 1, 8.2.4 Calculation of the comprehensive judgment score
is the comprehensive judgment score using the formula <3 ) calculated. AK
In the formula:
K——Comprehensive judgment score:
A: Weight of the first indicator 1
K. The first indicator score should be
8.3 Result judgment
NY653—20C3
Comprehensive judgment score A3.30 is a superior product: K0.H. and 0.65 is a qualified product; those with unqualified individual indicators are judged as unqualified products.
63 For voltage test
, the score for the withstand voltage test is; the unqualified product for the energized test (the score is) 6.4 No-load voltage setting range (limited to excitation synchronous generators) The potential voltage adjustment range is equal to the self-state voltage adjustment range (the score is 0.8). The product that does not meet the upper conditions is divided into,
65 Short-time voltage increase test
When encountering a short rise The products with high monthly modification number are qualified products (score is 3.00). The products with high monthly modification number are qualified products (score is 3.00). The products with high monthly modification number are qualified products (score is 3.00). The products with high monthly modification number are qualified products (score is 3.00). The products with high monthly modification number are qualified products (score is 3.00). The products with high monthly modification number are qualified products (score is 3.00). The products with high monthly modification number are qualified products (score is 3.00). The products with high monthly modification number are qualified products (score is 3.00). The products with high monthly modification number are qualified products (score is 3.00). 9. Convenience of use inspection
The convenience of use is divided into four levels: convenient (1.0), relatively convenient (8), inconvenient <, very inconvenient (0.00).
6.10 Maintenance and repair convenience inspection
The maintenance efficiency is divided into four levels: efficient (1.00), relatively convenient (0), cost-saving (0.60), very inconvenient (0).
6.11 Electromagnetic interference test
Pass the electromagnetic interference test The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.12 The qualified products are as follows! The qualified products are as follows! The qualified products are as follows! 6.13 The qualified products are as follows! The qualified products are as follows! 6.14 The qualified products are as follows! The qualified products are as follows! 6.15 The qualified products are as follows! The qualified products are as follows! 6.16 The qualified products are as follows! The qualified products are as follows! 6.17 The qualified products are as follows! 6.18 The qualified products are as follows! 6.19 The qualified products are as follows! 7.10 The qualified products are as follows! 7.11 The qualified products are as follows! 7.12 The qualified products are as follows! 7.13 The qualified products are as follows! 7.14 The qualified products are as follows! 7.15 The qualified products are as follows! 7.16 The qualified products are as follows! 7.17 The qualified products are as follows! 7.18 The qualified products are as follows! 7.19 ... 7.4 Whole machine efficiency
At a certain water head, measure the water head under a certain load, and the flow rate is half the work of the micro-motor. The digital machine efficiency is calculated. 7.5 Steady-state voltage of the whole machine
Under the rated water head condition, the load flashes for 1m, and the three voltages are measured under the conditions of 75%, 50%, 25%, 25%, 50%, and 731005 respectively. The steady-state voltage is adjusted by calculating the low and high voltage with the fixed water. 7.6 Mixed start
Before the generator is started and after reaching thermal equilibrium (about 21.), measure the resistance value respectively and calculate the function value: This test is carried out on the generator test track. 7.7, the rated current is measured in the determination of the boarding efficiency, the measured power signal is the rated current. 1. The voltage waveform sinusoidal distortion rate is tested with an electric energy comprehensive tester. This instrument can give 1~20 times the wave straight or: 29 times the wave to wave ratio, the formula is the waveform spray rate.
7.9 Appearance
According to the T12-. node test method.
7.10 Absolute peak resistance
Use 500 or 100 meters to test,
7.11 Withstand voltage test
The voltage test is a special test for generators. And the voltage test has a Complete damage resistance, those who have fully returned to the state power test can be exempted from the city voltage test and are allowed to pass the combustion control! , NY663-2003
7.12 Determination of no-load voltage setting range
This test is limited to the synchronous generator. Only the maximum and minimum values of the no-load voltage setting need to be measured. This test should be carried out on the vehicle generator test bench,
7.13 Determination of cold and hot state voltage variation
After the generator is started, the rated voltage value is measured, and the rated voltage is taken after reaching the hot balance. The difference between the two values is used to reflect the cold and hot voltage variation. In the two tests, no adjustment is allowed to the generator. This test is suitable for the generator test bench. 7.14 Short-time voltage rise test
The no-load voltage rise rate of the generator is 130% of the rated voltage, lasting for min, and there is no mechanical or electrical damage: This item should be carried out on the generator test bench.
7.15 Overspeed test
No-load, the speed is 12% of the rated speed. After 2 minutes, stop the generator and check whether there is mechanical or electrical damage. 7.1E Short-circuit test
No-load, adjust the voltage to 0% of the rated voltage, and check whether there is mechanical or electrical damage. 7.17 Safety inspection
Check whether the generator leads are exposed, and the grounding is reliable. 7. 18 Performance inspection
Check whether the unit is started and stopped, and whether it is easy to operate. 7.19 Performance inspection of reactor maintenance
Check whether the unit is properly operated (adding lubricant, cleaning and replacing carbon, etc.) 7.20 Electromagnetic interference test
Use a color TV to check whether the receiving TV is correct. For micro-water cores installed in electronic or electrical controllers, the TV should be placed at a high voltage 2 meters away from the power supply. 7.21 Flyway test
Is the hydropower unit working within the rated working range? min. After the unit is fully charged, the load will be removed. After 2 min., check whether the unit has mechanical or electrical damage.
8 Judgment method
8.1 Judgment of single technical indicators
The test results should be checked according to the standard. If the total score is 0.0, the product is judged as unqualified: when the test score is 0.0, it can be judged as a comprehensive product.
8.2 Comprehensive judgment
E.2.1 Combined judgment method
Use the segmented judgment results to get the score K, and use the weight coefficient A to calculate the final score R of the product. 8.2.2 Weight coefficient allocation principle
The double coefficient A is determined by the participating quality grading specialists according to the degree of importance of the assessment items. The effective weight coefficient distribution should satisfy the formula [1],
day. 2.3 Calculation of the score of quantitative indicators
The score of the quantitative indicator is calculated by subtracting the observed value of the superior product from the actual standard number, and the qualified product judgment standard value is calculated using (2>. E:
K, =--2 5(G, -55
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