CN103595350A - Photovoltaic module wetting electric leakage test method - Google Patents
Photovoltaic module wetting electric leakage test method Download PDFInfo
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- CN103595350A CN103595350A CN201310608023.6A CN201310608023A CN103595350A CN 103595350 A CN103595350 A CN 103595350A CN 201310608023 A CN201310608023 A CN 201310608023A CN 103595350 A CN103595350 A CN 103595350A
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- photovoltaic module
- insulation resistance
- resistance tester
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Examining Or Testing Airtightness (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention relates to a photovoltaic module wetting electric leakage test method. The photovoltaic module wetting electric leakage test method comprises a first step of placing a photovoltaic module in a test water tank, and adding water into the test water tank; a second step of preheating a program-controlled insulation resistance tester and a digital display conductivity meter; a third step of enabling the output end of the photovoltaic module to be short-circuited and then connected to a positive pole of the high-voltage output end of the preheated program-controlled insulation resistance tester, and connecting a negative pole of the high-voltage output end of the preheated program-controlled insulation resistance tester with water in the test water tank through a metal sheet; a fourth step of spraying water on the upper surface of the photovoltaic module, and wetting a junction box of the photovoltaic module and a connector; a fifth step of adjusting the voltage of the program-controlled insulation resistance tester to be 500V or the highest voltage value of the photovoltaic module, and testing a conductivity value. The photovoltaic module is placed in the water and short-circuited to test the conductivity of the photovoltaic module, the insulating property of the photovoltaic module under the humidity conditions is judged, and accordingly the service life and use safety of the photovoltaic module are guaranteed.
Description
Technical field
The present invention relates to solar photovoltaic assembly field, relate in particular to a kind of wet leakage tests method of photovoltaic module.
Background technology
Solar photovoltaic assembly is the core in solar power system, is also most important part in solar power system.Its effect is to convert solar energy into electrical energy, or is sent in storage battery and stores, or promotes loaded work piece.Along with the development of new energy technology, photovoltaic module is applied in various products more and more, also with regard to making, the test of photovoltaic module performance is become to particularly important.
Solar photovoltaic assembly is being worked for a long time under certain humiture and high voltage environment, and the insulation property of photovoltaic module are all extremely important to product useful life, personal security, therefore, need the method for the conductivity of a kind of test light photovoltaic assembly under wet condition.
Summary of the invention
The object of the invention is to overcome the defect that prior art exists, a kind of photovoltaic module leakage tests method that wets is provided.
The technical scheme that realizes the object of the invention is: the photovoltaic module leakage tests method that wets, comprises the following steps:
Step 1, puts into testing flume by photovoltaic module, and adds water until water logging there is not 1/3 of photovoltaic module aluminium frame height in testing flume, and the water temperature of described water is 19 ℃～25 ℃, and described resistivity of water is not more than 3500 Ω .Cm;
Step 2, by program control Insulation Resistance Tester preheating 20 minutes～40 minutes, digital display conductivity meter preheating 10 minutes～15 minutes, was connected program control Insulation Resistance Tester after preheating completes with digital display conductivity meter;
Step 3, will be connected to the positive pole of the program control Insulation Resistance Tester high-voltage output end after preheating after the output short circuit of photovoltaic module, the negative pole of the program control Insulation Resistance Tester high-voltage output end after preheating is connected with the water in testing flume by conductor element;
Step 4, to photovoltaic module upper surface water spray, and waters the terminal box of photovoltaic module, connector connector;
Step 5, is adjusted to 500V or photovoltaic module maximum voltage value by the voltage of program control Insulation Resistance Tester, keeps 1 minute～5 minutes, is measured the conductivity value of photovoltaic module by digital display conductivity meter.
Further, if photovoltaic module maximum voltage value is less than 500V and program control Insulation Resistance Tester is adjusted to 500V in described step 5, if being greater than 500V, photovoltaic module maximum voltage value program control Insulation Resistance Tester is adjusted to photovoltaic module maximum voltage value.
Further, in described step 3, conductor element is sheet metal.
The present invention has positive effect: the present invention also tests its conductivity after short circuit by photovoltaic module being arranged in water, thus the insulation property of judgement photovoltaic module under wet condition, thus guarantee the useful life of photovoltaic module and the fail safe of use.
Embodiment
Embodiment 1
First preferred embodiment of the invention provides a kind of photovoltaic module leakage tests method that wets, and comprises the following steps:
Step 1, puts into testing flume by photovoltaic module, and adds water until water logging there is not 1/3 of photovoltaic module aluminium frame height in testing flume, and the water temperature of water is 19 ℃, and resistivity of water is not more than 3500 Ω .Cm;
Step 2, by program control Insulation Resistance Tester preheating 20 minutes, digital display conductivity meter preheating 10 minutes, was connected program control Insulation Resistance Tester after preheating completes with digital display conductivity meter;
Step 3, will be connected to the positive pole of the program control Insulation Resistance Tester high-voltage output end after preheating after the output short circuit of photovoltaic module, the negative pole of the program control Insulation Resistance Tester high-voltage output end after preheating is connected with the water in testing flume by sheet metal;
Step 4, to photovoltaic module upper surface water spray, and waters the terminal box of photovoltaic module, connector connector;
Step 5, is adjusted to 500V or photovoltaic module maximum voltage value by the voltage of program control Insulation Resistance Tester, keeps 1 minute, is measured the conductivity value of photovoltaic module by digital display conductivity meter.
If photovoltaic module maximum voltage value is less than 500V and program control Insulation Resistance Tester is adjusted to 500V in step 5 of the present invention, if being greater than 500V, photovoltaic module maximum voltage value program control Insulation Resistance Tester is adjusted to photovoltaic module maximum voltage value.
The present invention also tests its conductivity after short circuit by photovoltaic module being arranged in water, thus the insulation property of judgement photovoltaic module under wet condition, thus guarantee the useful life of photovoltaic module and the fail safe of use.
The present invention
Embodiment 2
As the second preferred embodiment, all the other are identical with embodiment 1, and difference is, the invention provides a kind of wet leakage tests method of photovoltaic module, comprises the following steps:
Step 1, puts into testing flume by photovoltaic module, and adds water until water logging there is not 1/3 of photovoltaic module aluminium frame height in testing flume, and the water temperature of water is 25 ℃, and resistivity of water is not more than 3500 Ω .Cm;
Step 2, by program control Insulation Resistance Tester preheating 40 minutes, digital display conductivity meter preheating 15 minutes, was connected program control Insulation Resistance Tester after preheating completes with digital display conductivity meter;
Step 3, will be connected to the positive pole of the program control Insulation Resistance Tester high-voltage output end after preheating after the output short circuit of photovoltaic module, the negative pole of the program control Insulation Resistance Tester high-voltage output end after preheating is connected with the water in testing flume by sheet metal;
Step 4, to photovoltaic module upper surface water spray, and waters the terminal box of photovoltaic module, connector connector;
Step 5, is adjusted to 500V or photovoltaic module maximum voltage value by the voltage of program control Insulation Resistance Tester, keeps 5 minutes, is measured the conductivity value of photovoltaic module by digital display conductivity meter.
Embodiment 3
As the 3rd preferred embodiment, all the other are identical with embodiment 1 or 2, and difference is, the invention provides a kind of wet leakage tests method of photovoltaic module, comprises the following steps:
Step 1, puts into testing flume by photovoltaic module, and adds water until water logging there is not 1/3 of photovoltaic module aluminium frame height in testing flume, and the water temperature of water is 22 ℃, and resistivity of water is not more than 3500 Ω .Cm;
Step 2, by program control Insulation Resistance Tester preheating 30 minutes, digital display conductivity meter preheating 12 minutes, was connected program control Insulation Resistance Tester after preheating completes with digital display conductivity meter;
Step 3, will be connected to the positive pole of the program control Insulation Resistance Tester high-voltage output end after preheating after the output short circuit of photovoltaic module, the negative pole of the program control Insulation Resistance Tester high-voltage output end after preheating is connected with the water in testing flume by sheet metal;
Step 4, to photovoltaic module upper surface water spray, and waters the terminal box of photovoltaic module, connector connector;
Step 5, is adjusted to 500V or photovoltaic module maximum voltage value by the voltage of program control Insulation Resistance Tester, keeps 2 minutes, is measured the conductivity value of photovoltaic module by digital display conductivity meter.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. the wet leakage tests method of photovoltaic module, is characterized in that, comprises the following steps:
Step 1, puts into testing flume by photovoltaic module, and adds water until water logging there is not 1/3 of photovoltaic module aluminium frame height in testing flume, and the water temperature of described water is 19 ℃～25 ℃, and described resistivity of water is not more than 3500 Ω .Cm;
Step 2, by program control Insulation Resistance Tester preheating 20 minutes～40 minutes, digital display conductivity meter preheating 10 minutes～15 minutes, was connected program control Insulation Resistance Tester after preheating completes with digital display conductivity meter;
Step 3, will be connected to the positive pole of the program control Insulation Resistance Tester high-voltage output end after preheating after the output short circuit of photovoltaic module, the negative pole of the program control Insulation Resistance Tester high-voltage output end after preheating is connected with the water in testing flume by conductor element;
Step 4, to photovoltaic module upper surface water spray, and waters the terminal box of photovoltaic module, connector connector;
Step 5, is adjusted to 500V or photovoltaic module maximum voltage value by the voltage of program control Insulation Resistance Tester, keeps 1 minute～5 minutes, is measured the conductivity value of photovoltaic module by digital display conductivity meter.
2. the wet leakage tests method of photovoltaic module according to claim 1, it is characterized in that, if photovoltaic module maximum voltage value is less than 500V and program control Insulation Resistance Tester is adjusted to 500V in described step 5, if being greater than 500V, photovoltaic module maximum voltage value program control Insulation Resistance Tester is adjusted to photovoltaic module maximum voltage value.
3. the wet leakage tests method of photovoltaic module according to claim 1, is characterized in that, in described step 3, conductor element is sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310608023.6A CN103595350A (en) | 2013-11-26 | 2013-11-26 | Photovoltaic module wetting electric leakage test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310608023.6A CN103595350A (en) | 2013-11-26 | 2013-11-26 | Photovoltaic module wetting electric leakage test method |
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| CN103595350A true CN103595350A (en) | 2014-02-19 |
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| CN201310608023.6A Pending CN103595350A (en) | 2013-11-26 | 2013-11-26 | Photovoltaic module wetting electric leakage test method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915178A (en) * | 2016-04-07 | 2016-08-31 | 阿特斯(中国)投资有限公司 | Photovoltaic device IP grade test method |
| CN109031078A (en) * | 2018-10-25 | 2018-12-18 | 海鹰企业集团有限责任公司 | A kind of insulation performance evaluation method of transducer seal material |
| CN110932668A (en) * | 2019-10-30 | 2020-03-27 | 华电电力科学研究院有限公司 | Photovoltaic detection laboratory wet leakage current detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654068U (en) * | 2010-04-12 | 2010-11-24 | 扬州亿通自动化有限公司 | Insulativity and wet leakage current tester |
| CN102565613A (en) * | 2012-01-04 | 2012-07-11 | 常州天合光能有限公司 | Detecting device and detecting method for edge wet leakage property and long-term reliability of photovoltaic component |
| US20120268149A1 (en) * | 2011-04-25 | 2012-10-25 | Pat Buehler | Electrical test apparatus for a photovoltaic component |
| CN103364676A (en) * | 2012-04-09 | 2013-10-23 | 中电电气(上海)太阳能科技有限公司 | Wet electric leakage test device for solar-energy photovoltaic assembly |
-
2013
- 2013-11-26 CN CN201310608023.6A patent/CN103595350A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654068U (en) * | 2010-04-12 | 2010-11-24 | 扬州亿通自动化有限公司 | Insulativity and wet leakage current tester |
| US20120268149A1 (en) * | 2011-04-25 | 2012-10-25 | Pat Buehler | Electrical test apparatus for a photovoltaic component |
| CN102565613A (en) * | 2012-01-04 | 2012-07-11 | 常州天合光能有限公司 | Detecting device and detecting method for edge wet leakage property and long-term reliability of photovoltaic component |
| CN103364676A (en) * | 2012-04-09 | 2013-10-23 | 中电电气(上海)太阳能科技有限公司 | Wet electric leakage test device for solar-energy photovoltaic assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915178A (en) * | 2016-04-07 | 2016-08-31 | 阿特斯(中国)投资有限公司 | Photovoltaic device IP grade test method |
| CN109031078A (en) * | 2018-10-25 | 2018-12-18 | 海鹰企业集团有限责任公司 | A kind of insulation performance evaluation method of transducer seal material |
| CN109031078B (en) * | 2018-10-25 | 2020-05-15 | 海鹰企业集团有限责任公司 | Method for evaluating insulation performance of transducer sealing material |
| CN110932668A (en) * | 2019-10-30 | 2020-03-27 | 华电电力科学研究院有限公司 | Photovoltaic detection laboratory wet leakage current detection method |
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Application publication date: 20140219 |