CN104391210A - Testing platform of distribution transformer - Google Patents
Testing platform of distribution transformer Download PDFInfo
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- CN104391210A CN104391210A CN201410757871.8A CN201410757871A CN104391210A CN 104391210 A CN104391210 A CN 104391210A CN 201410757871 A CN201410757871 A CN 201410757871A CN 104391210 A CN104391210 A CN 104391210A
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- test
- platform
- information management
- load
- distribution transforming
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Abstract
The invention discloses a testing platform of a distribution transformer. The testing platform comprises a main console, a display and an information management system, wherein the main console is used for controlling a distribution transformer test; the display is connected with the main console and used for recording and displaying test data; the information management system is used for recording, storing, reviewing and comparing experimental data and issuing a test report; the distribution transformer test comprises a withstand voltage test, an insulation test, a transformation ratio group test, a no-load test and a direct current resistance test. The distribution transformer test time is shortened, and the incidence of distribution transformer failures is reduced by integrating the withstand voltage test, the insulation test, the transformation ratio group test, the no-load test and the direct current resistance test for control by the main console uniformly.
Description
Technical field
The present invention relates to electric power system power distribution field, in particular, relate to a kind of distribution transforming test platform.
Background technology
In electric system, when conventional electrical distribution transformer does distribution transforming test, multiple stage substation transformer needs to carry out distribution transforming test respectively, the time causing distribution transforming to be tested is longer, on average expend about 30 minutes time, by annual test distribution transforming 1000 calculating, amounting to the time expended in this link is 500 hours, labor intensive and time.Through my company of investigation 2011 because testing crew reaches 4 times to the distribution transforming fault that substation transformer data processing mistake causes.By scrapping a distribution transforming 30,000 yuan calculating, then lose 120,000 yuan.A series of Socie-economic loss that the power failure that causes brings at least several thousand are scrapped in distribution transforming, up to a million at most, have impact on the power supply reliability of company simultaneously.The p-wire that often kind of substation transformer uses is not identical yet, and make on-the-spot test circumstance complication, wiring loaded down with trivial details, increase experimenter's working strength, cause work efficiency low, distribution transforming rate of breakdown is higher, and the scrappage of substation transformer is higher.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of substation transformer test platform, being integrated by multiple substation transformer, reduction distribution transforming test period, reduces distribution transforming rate of breakdown.
For achieving the above object, the invention provides a kind of distribution transforming test platform, described test platform comprises:
Master console, described master console is used for controlling distribution transforming test;
Display, described display is connected with described master console, for record and display test figure;
Information management system, described information management system is used for recording experimental data, storing and audit contrast, provides test report simultaneously;
Described distribution transforming is tested as withstand voltage test, Insulation Test, the test of no-load voltage ratio group, empty load test and is directly hindered test.
Preferably, in above-mentioned test platform, described Insulation Test, the test of described no-load voltage ratio group, described empty load test and described straight resistance test have compatible same set of p-wire, and described withstand voltage test has independent p-wire.
Preferably, in above-mentioned test platform, the insulativity of described straight resistance test, no-load voltage ratio test is more than or equal to the insulativity of described withstand voltage test, Insulation Test and empty load test.
Preferably, in above-mentioned test platform, described empty load test possesses wave form distortion calibration function, frequency-deviation correcting function, automatically conversion function and volume calculation function.
Preferably, in above-mentioned test platform, the measuring current of described straight resistance test is 3A or 100mA;
When described measuring current is 3A, the test resistance scope of described straight resistance test is 1m Ω-2 Ω, comprises endpoint value;
When described measuring current is 100mA, the test resistance scope of described straight resistance test is 2 Ω-200 Ω, comprises endpoint value.
Preferably, in above-mentioned test platform, the no-load voltage ratio measurement range of described no-load voltage ratio group test is 1-10000, and group measurement range is 1-12, and measurement of angle scope is 0 degree of-360 degree, comprises endpoint value.
Preferably, in above-mentioned test platform, described information management system also comprises file information management, and described file information management is used for managing substation transformer attribute, historical test data and user right.
As can be seen from technique scheme, a kind of distribution transforming test platform provided by the invention, described test platform comprises: master console, and described master console is used for controlling distribution transforming test; Display, described display is connected with described master console, for record and display test figure; Information management system, described information management system is used for recording experimental data, storing and audit contrast, provides test report simultaneously; Described distribution transforming is tested as withstand voltage test, Insulation Test, the test of no-load voltage ratio group, empty load test and is directly hindered test.By withstand voltage test, Insulation Test, the test of no-load voltage ratio group, empty load test and straight resistance test being integrated, unification is controlled by master console, reduces distribution transforming test period, reduces the incidence of distribution transforming fault.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
A kind of distribution transforming test platform schematic diagram that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Time of causing distribution transforming to be tested longer problem is tested because multiple stage substation transformer needs to carry out respectively distribution transforming in order to solve in prior art.The invention provides a kind of distribution transforming test platform, as shown in Figure 1, described test platform comprises: master console 101, and described master console 101 is for controlling distribution transforming test; Display 102, described display 102 is connected with described master console 101, for record and display test figure; Information management system, described information management system is used for recording experimental data, storing and audit contrast, provides test report simultaneously; Described distribution transforming is tested as withstand voltage test, Insulation Test, the test of no-load voltage ratio group, empty load test and is directly hindered test.
This test platform mainly comprises master console 101, multiple substation transformer and display 102 and forms, and master console 101 is for controlling distribution transforming test, and display 102 is for recording the data in information management system and showing.Each substation transformer both can have been pulled down separately on probation, also can integratedly use, and during integrated use, the test operation of substation transformer, data management and analysis have all been concentrated by the industrial computer of the control center of master console 101.By withstand voltage test, Insulation Test, the test of no-load voltage ratio group, empty load test and straight resistance test being integrated, unification is controlled by master console 101, reduces distribution transforming test period, reduces the incidence of distribution transforming fault.
Described Insulation Test, the test of no-load voltage ratio group, empty load test and straight resistance test have compatible same set of p-wire, and described withstand voltage test has independent p-wire.Distribution transforming test platform is incorporated into substation transformer on a platform, is equipped with compatible a set of p-wire, facilitates wiring and experimental situation is safe and simple greatly reduces experimenter's working strength.
The insulativity of described straight resistance test, no-load voltage ratio test is more than or equal to the insulativity of described withstand voltage test, Insulation Test and empty load test.In distribution transforming test, withstand voltage test, Insulation Test and no-load test all need to apply high pressure, and after therefore just need considering integration in the testing equipment such as straight resistance grade of low pressure, high pressure is on the impact of self, and insulation need be not less than the dielectric level of high-tension testing apparatus.
Described empty load test possesses wave form distortion calibration function, frequency-deviation correcting function, automatically conversion function and volume calculation function.In empty load test, test three-phase current effective value and three-phase mean value are I
a, I
b, I
c, I
p, its accuracy is ± 0.2% reading ± 0.002 word, and range ability is 0.1A-50A.Test three-phase voltage effective value and three-phase mean value are U
ab, U
bc, U
ca, U
p, its accuracy is ± 0.2% reading ± 0.01 word, range ability: 20V-500V.Unloaded and short circuit loss is P
0, P
k, P
kt75, accuracy is ± 0.5% reading ± 0.1 word, calculates no-load current: I
0and I
0%, computing impedance voltage: U
kand U
k%.
The measuring current of described straight resistance test is 3A or 100mA, and when described measuring current is 3A, the test resistance scope of described straight resistance test is 1m Ω-2 Ω, comprises endpoint value; When described measuring current is 100mA, the test resistance scope of described straight resistance test is 2 Ω-200 Ω, comprises endpoint value.Resolution: 1 μ Ω, accuracy: ± 0.2% reading ± 0.1 word.
The no-load voltage ratio measurement range of no-load voltage ratio group test is 1-10000, and group measurement range is 1-12, and measurement of angle scope is 0 degree of-360 degree, comprises endpoint value.Inner generation three-phase high stability standard testing power supply, is mutually 120 degree of phase differential, achieves three-phase and measure simultaneously.A tap position 10s time completes, speed, not by the impact of voltage ripple of power network.Automatic resolution, record tap position, do not need frequent input, increase work efficiency further.Not by the impact of winding connection mode, be applicable to the test of all mode of connection transformers.Wherein, measurement of angle scope: 0 degree of-360 degree, no-load voltage ratio accuracy of measurement: ± 0.2% reading.
In the load ratio bridging switch test of transformer, utilize three-phase constant-current source to charge, charging current has 1A and 0.5A two grades, and transition resistance maximum range is 60 Ω, and waveform recording time span is 240ms, and sampling rate is 10k.The same period, Measurement Resolution was 0.1ms, and resistance test accuracy is ± 0.2% Europe, reading ± 0.1, and time test accuracy is ± 0.2% reading ± 0.1ms.
Information management system also comprises file information management, and described file information management is used for managing substation transformer attribute, historical test data and user right.The distribution transforming test platform integrated can carry out the test of every distribution transforming, but still needs mount message management system, can realize the record to test figure and process.Comprise the examination & verification comparison to data, what the automatic storage of data and straightway testing were reported provides.In prior art, distribution transforming test experimental data analyzes data taking on computer after being up to by every platform instrument printer, distribution transforming test platform provided by the invention is after often kind of test is finished, the quality of background system automatic analysis test specimen also prints experimental result form, improves experimenter to the managerial ability of equipment and working time.In prior art, file management facilities imperfection in distribution transforming test, integrated management can not be carried out to tested transformer, distribution transforming test platform provided by the invention can realize file management facilities, to tested transformer as model, manufacturer, purchase date, the date of putting into operation, working line etc. manage, store the historical test data management of every platform transformer, and printed report etc., edit, select different reporting printing forms, password setting, authority access can be carried out in safety management aspect.The inquiry, amendment, threshold value setting etc. of support standard.
Loaded down with trivial details conventional electrical distribution transformer test mode complicated in prior art is carried out transformation and is integrated by the present invention, obtain distribution transforming test platform, this platform collection is withstand voltage, insulation, straight resistance, no-load voltage ratio and empty load test one, there is the function of automatic recording processing data simultaneously, convenient and simple, substantially increase the work efficiency of substation transformer test, decrease the error rate of data processing.
Distribution transforming test platform can finishing equipment operation, data and browsing waveform.At hardware aspect, instrument adopts standard PC case, and be arranged in stage body, panel reaches on skewback, is convenient to observe.Lead-in wire is for inserting mode, for convenience detach, and three-phase or single phase poaer supply, output p-wire are drawn in the posterior portion of test board.Outfit industrial computer and LCDs control and display system as center.Configure plug-in laser printer, maintain easily, battery main switch adopts key switch.Software aspect, adopts windows operating system, and application software adopts VC++ programming, and database adopts SQL2000, and communication modes is RS232.Support the zero load of transformer and load characteristic test, the test of DC Resistance of Transformer, the test of transformer voltage ratio group polarity, the load ratio bridging switch examination of transformer, the industrial frequency withstand voltage of transformer, frequency tripling induced over voltage withstand test and oil chromatography test, and to the data management of oily withstand voltage test, retrieval and printing.
In distribution transforming test platform provided by the invention, distribution transforming test period shortened within 10 minutes, by annual 1000 calculating, can to save minute, about 333 hours, to improve the work efficiency of 66.6%, effect is considerable, has saved a large amount of working times and human resources.Due to the distribution transforming fault that data processing mistake causes, thus the direct economic loss of scrapping distribution transforming reduces, and ensure that power supply reliability.Substation transformer all-around test stand all has greatly improved in lifting work efficiency and economic benefit.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a distribution transforming test platform, is characterized in that, described test platform comprises:
Master console, described master console is used for controlling distribution transforming test;
Display, described display is connected with described master console, for record and display test figure;
Information management system, described information management system is used for recording experimental data, storing and audit contrast, provides test report simultaneously;
Described distribution transforming is tested as withstand voltage test, Insulation Test, the test of no-load voltage ratio group, empty load test and is directly hindered test.
2. test platform as claimed in claim 1, is characterized in that, described Insulation Test, the test of described no-load voltage ratio group, described empty load test and described straight resistance test have compatible same set of p-wire, and described withstand voltage test has independent p-wire.
3. test platform as claimed in claim 1, is characterized in that, the insulativity of described straight resistance test, the test of described no-load voltage ratio group is more than or equal to the insulativity of described withstand voltage test, described Insulation Test and described empty load test.
4. test platform as claimed in claim 1, is characterized in that, described empty load test possesses wave form distortion calibration function, frequency-deviation correcting function, automatically conversion function and volume calculation function.
5. test platform as claimed in claim 1, is characterized in that, the measuring current of described straight resistance test is 3A or 100mA;
When described measuring current is 3A, the test resistance scope of described straight resistance test is 1m Ω-2 Ω, comprises endpoint value;
When described measuring current is 100mA, the test resistance scope of described straight resistance test is 2 Ω-200 Ω, comprises endpoint value.
6. test platform as claimed in claim 1, is characterized in that, the no-load voltage ratio measurement range of described no-load voltage ratio group test is 1-10000, and group measurement range is 1-12, and measurement of angle scope is 0 degree of-360 degree, comprises endpoint value.
7. test platform as claimed in claim 1, it is characterized in that, described information management system also comprises file information management, and described file information management is used for managing substation transformer attribute, historical test data and user right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757871.8A CN104391210A (en) | 2014-12-10 | 2014-12-10 | Testing platform of distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757871.8A CN104391210A (en) | 2014-12-10 | 2014-12-10 | Testing platform of distribution transformer |
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| Publication Number | Publication Date |
|---|---|
| CN104391210A true CN104391210A (en) | 2015-03-04 |
Family
ID=52609135
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|---|---|---|---|
| CN201410757871.8A Pending CN104391210A (en) | 2014-12-10 | 2014-12-10 | Testing platform of distribution transformer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636715A (en) * | 2012-04-19 | 2012-08-15 | 湖北中试电力科技有限公司 | Integrated electrical test comprehensive testing system |
| CN202421361U (en) * | 2011-12-12 | 2012-09-05 | 河南省电力公司平顶山供电公司 | Comprehensive test platform for transformer |
| CN202583373U (en) * | 2012-05-30 | 2012-12-05 | 李东波 | Oil well transformer comprehensive testing device |
| CN203479934U (en) * | 2013-09-05 | 2014-03-12 | 国家电网公司 | Vehicle-mounted integrated testing system for transformer |
| CN104090168A (en) * | 2014-07-24 | 2014-10-08 | 国网浙江宁波市鄞州区供电公司 | Transformer direct-current resistance and no-load voltage ratio testing device |
-
2014
- 2014-12-10 CN CN201410757871.8A patent/CN104391210A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202421361U (en) * | 2011-12-12 | 2012-09-05 | 河南省电力公司平顶山供电公司 | Comprehensive test platform for transformer |
| CN102636715A (en) * | 2012-04-19 | 2012-08-15 | 湖北中试电力科技有限公司 | Integrated electrical test comprehensive testing system |
| CN202583373U (en) * | 2012-05-30 | 2012-12-05 | 李东波 | Oil well transformer comprehensive testing device |
| CN203479934U (en) * | 2013-09-05 | 2014-03-12 | 国家电网公司 | Vehicle-mounted integrated testing system for transformer |
| CN104090168A (en) * | 2014-07-24 | 2014-10-08 | 国网浙江宁波市鄞州区供电公司 | Transformer direct-current resistance and no-load voltage ratio testing device |
Non-Patent Citations (1)
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| 卢纯: "提高供电企业电气设备试验仪器集成度的研究", 《中国优秀硕士学位论文全文数据库》 * |
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Application publication date: 20150304 |