CN107102286A - A kind of inspection probability of acceptance of electronic type AC energy meter determines method - Google Patents
A kind of inspection probability of acceptance of electronic type AC energy meter determines method Download PDFInfo
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- CN107102286A CN107102286A CN201710256525.5A CN201710256525A CN107102286A CN 107102286 A CN107102286 A CN 107102286A CN 201710256525 A CN201710256525 A CN 201710256525A CN 107102286 A CN107102286 A CN 107102286A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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Abstract
Method is determined the present invention relates to a kind of inspection probability of acceptance of electronic type AC energy meter, methods described comprises the following steps：Determine the sampling inspection scheme of electronic type AC energy meter；According to the sampling inspection scheme of determination, inspection is sampled, the rejecton quality level p of electronic type AC energy meter is determined；According to the sampling inspection scheme of electronic type AC energy meter and the rejecton quality level p determined, the inspection probability of acceptance L (p) for obtaining electronic type AC energy meter is calculated.Compared with prior art, the present invention has the advantages that to standardize and be easy to staff's forecast test to receive result.
Description
Technical field
The present invention relates to electric energy meter detection field, more particularly, to a kind of inspection probability of acceptance of electronic type AC energy meter
Determine method.
Background technology
In recent years, with the fast development of science and technology, Electric Energy Metering Technology is advanced by leaps and bounds.2009, national grid was public
The serial company standard of department's issue intelligent electric energy meter, has pulled open the prelude of a wide range of popularization and application of intelligent electric energy meter.From 2010,
District of Shanghai starts to install and use intelligent electric energy meter comprehensively, 7 years has been gone through so far, whole city's scope has been completely covered in intelligent electric energy meter.
The capability and performance of electronic electric energy meter especially intelligent electric energy meter has been greatly promoted, and its actual service life there has also been considerable dash forward
It is broken.State Grid Shanghai Electric Power Company has formulated the technology of standard criterion in processes such as the buying of electric energy meter, experiment, examination, calibratings
It is required that required with management, and strict implement is supervised.In this case, currently the electric energy meter of rotation of expiring is carried out according to the fixed cycle
Traditional operation and management mode is although fairly simple, easily operation, but also show out many disadvantages especially：First, traditional mode has
Body ignores product quality level in implementing, and closes on after rotational cycle and completely imposes uniformity without examining individual cases sink or swim.Existing electric energy calendar life is general
More than 10-15 is generally reached, and rotational cycle is only 6-8, it means that even if reaching after rotational cycle actually still
So have a large amount of intact with electric energy meter capability and performance, change, trigger without exception sink or swim after rotational cycle if electric energy meter is reached
Old table dismounting processing, new table purchase a series of activities such as installation, and largely obviously the intact electric energy meter of quality is scrapped ahead of time, not only
Manpower and materials cost is huge, and is unfavorable for energy-saving, significant wastage social resources.
Therefore, if wanting to save resource, need to test to electronic type AC energy meter, this is shown if upchecking
Criticizing electric energy meter can be received, without being changed.But existing method is directly to this batch of electricity by sampling inspection mostly
The quality of energy table is evaluated, and then whether the electric energy meter of the micro-judgment of the foundation staff batch can receive, this
Method subjectivity is too strong, and artificial disturbance factor is excessive, it is therefore desirable to which whether one kind can be entered for electronic type AC energy meter
The judgment criteria that performing check is received.
The content of the invention
The purpose of the present invention is that the inspection probability of acceptance for providing a kind of electronic type AC energy meter regarding to the issue above is determined
Method.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of inspection probability of acceptance of electronic type AC energy meter determines method, and methods described comprises the following steps：
1) sampling inspection scheme of electronic type AC energy meter is determined；
2) according to step 1) determine sampling inspection scheme, be sampled inspection, determine electronic type AC energy meter not
Acceptance quality level p；
3) according to step 1) electronic type AC energy meter sampling inspection scheme and step 2) determine unqualified quality
Horizontal p, calculates the inspection probability of acceptance L (p) for obtaining electronic type AC energy meter.
The sampling inspection scheme includes sample size and allows the quantity of underproof electronic type AC energy meter.
The step 2) be specially：
21) the sampling batch of sampling inspection scheme is determined；
22) to step 21) determine each sampling batch, according to step 1) determine sampling inspection scheme, be sampled
Examine；
23) according to step 22) sampling inspection result, determine rejecton quality level p.
The step 21) be specially：
211) the installation and operation time using electronic type AC energy meter, as starting point, calculates the operation time limit for obtaining electric energy meter,
Extraction meets electronic type AC energy meter as defined in sampling inspection；
212) to step 211) the electronic type AC energy meter that extracts, according to same model, ad eundem, same to manufacturer, same
Voltage specification and close current specification, which are marked off, to be criticized and batch.
It is described to meet electronic type AC energy meter as defined in sampling inspection and be specially：Operation the time limit reach sampling inspection when
Between regulation, outward appearance without damaging, examine that qualified seal is intact and accumulative total electricity is more than 15kWh by force.
The rejecton quality level p is specially：
Wherein, n is sample size, and A is the quantity of qualified electronic type AC energy meter after sampled inspection.
The inspection probability of acceptance L (p) of the electronic type AC energy meter is specially：
Wherein, n is sample size, and d is the quantity and A of underproof electronic type AC energy meter in all sampling batchesc
To show the minimum number of the qualified electronic type AC energy meter of sampling inspection.
Compared with prior art, the invention has the advantages that：
According to sampling inspection scheme and according to the result of the examination at random verification scheme, the inspection to electronic type AC energy meter connects
Receiving probability has a definition specifically quantized, and providing one for staff intuitively examines reception normative reference,
Reception judgement of being tested compared with traditional experience by staff is compared, and this method is more accurate and visual, and calculates
Simply, generally it is applicable, it is applied widely.
Brief description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
Under a kind of inspection probability of acceptance of electronic type AC energy meter proposed by the present invention determines that method, methods described include
Row step：
1) sampling inspection scheme of electronic type AC energy meter is determined；
2) according to step 1) sampling inspection scheme that determines (including sample size and allow underproof electronic type alternating current
The quantity of energy table), inspection is sampled, the rejecton quality level p of electronic type AC energy meter is determined, is specially：
21) the sampling batch of sampling inspection scheme is determined, is specially：
211) the installation and operation time using electronic type AC energy meter, as starting point, calculates the operation time limit for obtaining electric energy meter,
Extraction meets electronic type AC energy meter as defined in sampling inspection, that is, runs the time limit and reach the time rule of sampling inspection, outward appearance
Without damaging, examine that qualified seal is intact and accumulative total electricity is more than 15kWh by force；
212) to step 211) the electronic type AC energy meter that extracts, according to same model, ad eundem, same to manufacturer, same
Voltage specification and close current specification, which are marked off, to be criticized and batch；
22) to step 21) determine each sampling batch, according to step 1) determine sampling inspection scheme, be sampled
Examine；
23) according to step 22) sampling inspection result, determine rejecton quality level p, be specially：
Wherein, n is sample size, and A is the quantity of qualified electronic type AC energy meter after sampled inspection；
3) according to step 1) electronic type AC energy meter sampling inspection scheme and step 2) determine unqualified quality
Horizontal p, calculates the inspection probability of acceptance L (p) for obtaining electronic type AC energy meter, is specially：
Wherein, n is sample size, and d is the quantity and A of underproof electronic type AC energy meter in all sampling batchesc
To show the minimum number of the qualified electronic type AC energy meter of sampling inspection.
It is specifically described according to above-mentioned steps：
The sampling batch of sampling inspection scheme is determined first：The batches of electric energy meter of shape should be completely the same.The batches of electric energy of shape
Table should be produced according to identical production standard and technical requirements.The batches of electric energy meter of shape should have same quality, producer to provide production
Product uniformity technological document includes (parts control and manufacturing technique requirent etc.).The batches of electric energy meter of shape should have identical life
Factory, model, class of accuracy, type approval book are produced, electric energy meter year built or last inspection time are not to be exceeded 1 each other
Year.The characteristic of the batches of electric energy meter of shape should have identical nominal voltage, electric current, maximum current, electric current ratio, grade and rate
Deng.The batches of electric energy meter of shape, which installs and uses condition, should meet the requirement of electric energy meter factory formulation, and use condition should be similar.
The batches of electric energy meter of shape to relevant department should formed after declaration of putting on record, issued for approval and criticized.Content of putting on record is counted in batch including shape
Amount, product technology feature, product installation region and correlation technique file etc..Technological document includes：Model machine photo, product standard,
The inspection that general assembly drawing, circuit diagram and main parts size figure, main production description, operation instructions, fashionable technical body are done
Observe and predict announcement, reliability prediction analysis (including service life of key parts and components estimated), enterprise determine can normal work predicted life when
Between.These files can be e-file form.The mechanism for being sampled calibrating is authorized to preserve the information criticized, sampling calibrating number
According to etc., and should at least be saved in the table and be removed.
Then it is sampled inspection：The extraction of sample table must comply with the principle randomly selected, and single sample or two may be selected
The mode of secondary sampling carries out in-use inspection to electric energy meter.Government's meter need to be obtained by being engaged in the calibration authority of selection and the calibrating of sample table
The mandate of administrative department is measured, and is implemented under its supervision.When extracting sample table from criticizing, it is necessary to consider that situations below：Instrument is
Damage.The seal of instrument suffers artificial destruction.Instrument can not have been pulled down because of a variety of causes.Can not normally it be examined and determine after pulling down.
It is contemplated that removing and transporting the possibility of the damage to instrument.Therefore backing sheet is must take into consideration when sampling is chosen to choose and replace
Change, should add that takes out sample size to be no more than table 1, the requirement of table 2, but no less than 3.
The single sample of table 1 batch, sample size, receive number and backing sheet number
The double sampling of table 2 batch, sample size, receive number and backing sheet number
According to assay, failed sample number is determined：Sample presses the project of single electric energy meter in-use inspection
Examined and determine.If samples met requires qualified as 1.It is unqualified as 1 if any one or more Non-Compliance purposes.
By the unqualified cumulative number of non-compliances d for obtaining electric energy meter batch.Number of non-compliances d is updated toIn,
The inspection probability of acceptance L (p) for obtaining electronic type AC energy meter is calculated, if it is more than 85%, regards as receiving, otherwise
Then think to receive.
Claims (7)
1. a kind of inspection probability of acceptance of electronic type AC energy meter determines method, it is characterised in that methods described includes following
Step：
1) sampling inspection scheme of electronic type AC energy meter is determined；
2) according to step 1) determine sampling inspection scheme, be sampled inspection, determine the unqualified of electronic type AC energy meter
Quality level p；
3) according to step 1) electronic type AC energy meter sampling inspection scheme and step 2) determine rejecton quality level
P, calculates the inspection probability of acceptance L (p) for obtaining electronic type AC energy meter.
2. the inspection probability of acceptance of electronic type AC energy meter according to claim 1 determines method, it is characterised in that institute
Sampling inspection scheme is stated including sample size and allows the quantity of underproof electronic type AC energy meter.
3. the inspection probability of acceptance of electronic type AC energy meter according to claim 1 determines method, it is characterised in that institute
State step 2) be specially：
21) the sampling batch of sampling inspection scheme is determined；
22) to step 21) determine each sampling batch, according to step 1) determine sampling inspection scheme, be sampled inspection；
23) according to step 22) sampling inspection result, determine rejecton quality level p.
4. the inspection probability of acceptance of electronic type AC energy meter according to claim 3 determines method, it is characterised in that institute
State step 21) be specially：
211) the installation and operation time using electronic type AC energy meter, as starting point, calculates the operation time limit for obtaining electric energy meter, extracts
Meet electronic type AC energy meter as defined in sampling inspection；
212) to step 211) extract electronic type AC energy meter, according to same model, ad eundem, same to manufacturer, same to voltage
Specification and close current specification, which are marked off, to be criticized and batch.
5. the inspection probability of acceptance of electronic type AC energy meter according to claim 4 determines method, it is characterised in that institute
State and meet electronic type AC energy meter as defined in sampling inspection and be specially：The operation time limit reaches the time rule, outer of sampling inspection
See without damaging, examine that qualified seal is intact and accumulative total electricity is more than 15kWh by force.
6. the inspection probability of acceptance of electronic type AC energy meter according to claim 4 determines method, it is characterised in that institute
Stating rejecton quality level p is specially：
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<mn>100</mn>
<mi>%</mi>
</mrow>
Wherein, n is sample size, and A is the quantity of qualified electronic type AC energy meter after sampled inspection.
7. the inspection probability of acceptance of electronic type AC energy meter according to claim 1 determines method, it is characterised in that institute
The inspection probability of acceptance L (p) for stating electronic type AC energy meter is specially：
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Wherein, n is sample size, and d is the quantity and A of underproof electronic type AC energy meter in all sampling batchescFor table
The minimum number of the qualified electronic type AC energy meter of bright sampling inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710256525.5A CN107102286A (en) | 2017-04-19 | 2017-04-19 | A kind of inspection probability of acceptance of electronic type AC energy meter determines method |
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| CN201710256525.5A CN107102286A (en) | 2017-04-19 | 2017-04-19 | A kind of inspection probability of acceptance of electronic type AC energy meter determines method |
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| Publication Number | Publication Date |
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| CN107102286A true CN107102286A (en) | 2017-08-29 |
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| CN201710256525.5A Pending CN107102286A (en) | 2017-04-19 | 2017-04-19 | A kind of inspection probability of acceptance of electronic type AC energy meter determines method |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707255A (en) * | 2012-06-19 | 2012-10-03 | 华北电网有限公司计量中心 | Quick sampling and detecting method for intelligent ammeter |
-
2017
- 2017-04-19 CN CN201710256525.5A patent/CN107102286A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707255A (en) * | 2012-06-19 | 2012-10-03 | 华北电网有限公司计量中心 | Quick sampling and detecting method for intelligent ammeter |
Non-Patent Citations (1)
| Title |
|---|
| 刘恺: "在线民用电表抽样检验方法研究与实证分析", 《中国优秀硕士学位论文全文数据库社会科学Ⅰ辑》 * |
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Application publication date: 20170829 |