CN1700029A - Insulation gas voltage endurance testing method and testing device - Google Patents
Insulation gas voltage endurance testing method and testing device Download PDFInfo
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- CN1700029A CN1700029A CN 200510031498 CN200510031498A CN1700029A CN 1700029 A CN1700029 A CN 1700029A CN 200510031498 CN200510031498 CN 200510031498 CN 200510031498 A CN200510031498 A CN 200510031498A CN 1700029 A CN1700029 A CN 1700029A
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Abstract
The invention relates to a measuring method and device of insulation gas pressure resistance measurement, which has a sealing container, manufactured by insulation material and can take on over 1MPa air pressure, wherein a pair of measuring electrode is posited inside the container. It has the following steps: first cleaning the container and sealing it, adjusting and measuring the distance of the electrodes, heating, drying and purging it in air draft, then inputting test gas into the container, placing the measuring electrodes on high-voltage test circuit, exerting high voltage to the electrodes and graduate increasing until it disruptive discharging then measuring instantaneous discharge voltage.
Description
Technical field
The present invention relates to the high-voltage electrical apparatus fields of measurement, especially to the method for testing and the specialized equipment thereof of gas electrical insulation properties.
Background technology
Along with sulfur hexafluoride (SF
6) wait the widespread use of insulating gas in high voltage electric equipment, how to reclaim SF
6How to purify SF
6How to measure SF
6Withstand voltage properties? the key subjects that people press for solution have been become.
Though pure SF
6Gas is nontoxic, but through move in high voltage electric equipment, generate heat, make moist, generation being had hypertoxic fluoride after the reaction such as decomposition, does not reclaim serious harm environment and personal safety.Therefore the power industry rules are defined in high voltage electric equipment installation and the overhaul and forbid used SF
6Gas must reclaim, purify and recycling with the purpose airborne release.
SF
6Gas main effect in high voltage electric equipment is insulation and extinguish arcs, so must guarantee SF
6Gas has the good insulation performance performance.But, the SF of recovery
6Often sneaked into greasy dirt, impurity in the gas, caused decreasing insulating, must just can reuse through the electric insulating quality energy measurement, otherwise can cause the high voltage electric equipment damage accident.
At present, both at home and abroad to SF
6Gas electric insulating quality energy measurement does not also have consistent method, does not more formulate measurement standard.China adopts chemical method at present, promptly judges tested SF by parameters such as little water, impurity content and toxicity in measuring unit's volumes of gas, stability, purity
6The quality of gas is inferred its electrical insulation properties indirectly.This method measuring process is long and complicated, generally wants more than the week, and the measurement expense costliness, every sample time measurement expense is wanted several thousand yuan, and can only finish in power center above the provincial level is tested institute.Its greatest drawback is directly to measure SF
6The electrical insulation properties of gas.
Summary of the invention
The purpose of this invention is to provide a kind of insulation gas voltage endurance testing method and proving installation thereof, accomplish directly to measure the electrical insulation properties of tested gas, fast measuring, easy to use.
Technical scheme is to make the closed container that can bear more than the air pressure 1MPa with insulating material, and a pair of potential electrode is installed in the container.Testing procedure is as follows:
1, at first container is cleaned up, sealing is installed, and adjusts the potential electrode distance, heat drying, vacuumizes purification.
2, charge into an amount of tested gas in container, it is consistent with the air pressure of the high voltage electric equipment designing requirement of using this gas to control tested gas pressure intensity.
3, the potential electrode in the container is inserted high-potting loop commonly used, apply high voltage and increase gradually, till disruptive discharge, record instantaneous discharge voltage to potential electrode.
4, tie-in is three times, gets its mean value as tested gas breakdown voltage.This voltage breakdown is weighed gas electrical insulation properties parameter exactly.
Can draw through test of many times: be 2mm in the potential electrode distance, air pressure is under the normal temperature condition of 0.5 ± 0.1MPa, meets the SF of request for utilization
6Gas breakdown voltage is generally all greater than 40KV.Therefore, the suggestion power industry with voltage breakdown 〉=40KV as SF
6Gas electrical insulation properties criterion of acceptability.
Compared with the prior art, the present invention has following characteristics:
1, measuring speed is fast, and measurement data directly reflects SF
6The gas electrical insulation properties.Every sample time Measuring Time was less than 1 hour.
2, the measurement cost is low, and every sample time measurement expense is less than 100 yuan.
3, measurement range is wide, not only can measure SF
6, and can measure the electrical insulation properties that gas is used in all insulation that comprise inert gas.
4, simple to operate, safe in utilization.
Description of drawings
Fig. 1 is an insulation gas voltage endurance testing apparatus structure synoptic diagram
Embodiment
As shown in the figure, proving installation has the circular cylinder body of being made by insulating material 1.Insulating material can be plastics, glass, pottery etc.Cylindrical shell 1 two ends are adhesively fixed with metal flange dish 2 respectively, upper end cover 3, bottom end cover 4 is fixed by bolts to respectively on the cylindrical shell 1, on the lower end ring flange 2, be equipped with O type rubber seal 8 between end cap and the ring flange, be fixed with high-tension measurement electrode 5 on the upper end cover 3, be fixed with screw shell 7 on the bottom end cover 4, the earth terminal high-tension measurement telegram 6 that is carved with scale is spun in the screw shell 7, there is through hole 9 to communicate on the bottom end cover 4 with cylindrical shell 1, through hole 9 outer ends are welded with four-way 13, be connected to gas admittance valve 15 respectively on other three ports of four-way 13, vacuum pressure ga(u)ge 14, vacuum valve 10, vacuum valve 10 outlets are communicated with minipump 11, and automatic heating device 12 also is equipped with on bottom end cover 4 tops.
Describe insulation gas voltage endurance testing method in detail below in conjunction with above-mentioned measurement mechanism.
1, at first cylindrical shell 1 is removed and clean up, reinstall and give rotation high-tension measurement electrode 6 earlier, adjust the distance between high- tension measurement electrode 5 and 6.
2, open vacuum valve 10, open automatic heating device 12 and minipump 11 simultaneously, stop heating after purification a period of time, close vacuum pump 11 and vacuum valve 10.
3, open gas admittance valve 15, with the SF in basin or the operational outfit
6Gas charges in the cylindrical shell 1, observes tensimeter 9, makes SF
6Gas pressure intensity is consistent with the designing requirement air pressure of the high voltage electric equipment that uses it.
4, high- tension measurement electrode 5,6 is inserted high-potting loop commonly used, apply high voltage and increase gradually, till disruptive discharge, record instantaneous discharge voltage to high-tension measurement electrode 5.
5, tie-in is three times, gets its mean value as SF
6Gas breakdown voltage.
6, after test finishes, open vacuum valve 10 and vacuum pump 11, tested gaseous sample is discharged.
Claims (2)
1, a kind of insulation gas voltage endurance testing method is characterized in that having by what insulating material was made and bears closed container more than the air pressure 1MPa, and a pair of potential electrode is installed in the container; Testing procedure is as follows:
A, at first container is cleaned up, sealing is installed, and adjusts the potential electrode distance, and heat drying vacuumizes purification;
B, charge into an amount of tested gas in container, it is consistent with the air pressure of the high voltage electric equipment designing requirement of using this gas to control tested gas pressure intensity;
C, the potential electrode in the container is inserted high-potting loop commonly used, apply high voltage and increase gradually, till disruptive discharge, record instantaneous discharge voltage to potential electrode;
D, tie-in three times are got its mean value as tested gas breakdown voltage.
2, a kind of insulation gas voltage endurance testing device, it is characterized in that having the circular cylinder body of making by insulating material (1), cylindrical shell (1) two ends are adhesively fixed with metal flange dish (2) respectively, upper end cover (3), bottom end cover (4) is fixed by bolts to respectively on the cylindrical shell (1), on the lower end ring flange (2), be equipped with O type rubber seal (8) between end cap and the ring flange, be fixed with high-tension measurement electrode (5) on the upper end cover (3), be fixed with screw shell (7) on the bottom end cover (4), the earth terminal high-tension measurement electrode (6) that is carved with scale is spun in the screw shell (7), there is through hole (9) to communicate on the bottom end cover (4) with cylindrical shell (1), through hole (9) outer end is welded with four-way (13), be connected to gas admittance valve (15) respectively on other three ports of four-way (13), vacuum pressure ga(u)ge (14), vacuum valve (10), vacuum valve (10) outlet is communicated with minipump (11), and automatic heating device (12) also is equipped with on bottom end cover (4) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510031498 CN1700029A (en) | 2005-04-26 | 2005-04-26 | Insulation gas voltage endurance testing method and testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510031498 CN1700029A (en) | 2005-04-26 | 2005-04-26 | Insulation gas voltage endurance testing method and testing device |
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| CN1700029A true CN1700029A (en) | 2005-11-23 |
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| CN 200510031498 Pending CN1700029A (en) | 2005-04-26 | 2005-04-26 | Insulation gas voltage endurance testing method and testing device |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275927B (en) * | 2008-05-14 | 2011-02-09 | 重庆大学 | Multi-insulated sample local discharge test electrode apparatus |
| CN102313864A (en) * | 2010-06-02 | 2012-01-11 | 富士电机株式会社 | Testing apparatus and method of testing |
| CN103175853A (en) * | 2013-03-05 | 2013-06-26 | 云南电力试验研究院（集团）有限公司电力研究院 | Multifunctional and intelligent X-ray lab and device thereof |
| CN103822945A (en) * | 2014-03-07 | 2014-05-28 | 国家电网公司 | Sulfur hexafluoride gas testing device with rib-shaped distributed electrode structure |
| CN104133162A (en) * | 2013-08-19 | 2014-11-05 | 国家电网公司 | Test research device used for electrical performance research on mixed gas of high-voltage electrical equipment |
| CN104655968A (en) * | 2015-03-17 | 2015-05-27 | 西安交通大学 | High-temperature low-pressure aging test method |
| CN105606978A (en) * | 2016-03-17 | 2016-05-25 | 国网辽宁省电力有限公司电力科学研究院 | Mixed gas breakdown voltage detector, and mixed gas breakdown voltage prediction method using the same |
| CN108508312A (en) * | 2018-06-21 | 2018-09-07 | 亚洲电力设备(深圳)股份有限公司 | A kind of mixed gas electric property measuring device and its measurement method |
| CN109696604A (en) * | 2017-10-23 | 2019-04-30 | 平高集团有限公司 | A kind of concentric cylinder SF6Breakdown voltage experimental provision |
| CN109917242A (en) * | 2019-03-19 | 2019-06-21 | 江苏神马电力股份有限公司 | A kind of material electric characteristic test tooling and its application method |
| CN110108990A (en) * | 2019-05-10 | 2019-08-09 | 沈阳工业大学 | A kind of experimental rig and method for environmental-protective gas-insulating performance study |
| CN110456243A (en) * | 2019-09-04 | 2019-11-15 | 国网电力科学研究院有限公司 | A kind of insulation sample dc breakdown test device |
| CN110748635A (en) * | 2019-10-28 | 2020-02-04 | 江苏众力合创精密机械科技有限公司 | Efficient planetary gear reducer |
| CN111812458A (en) * | 2020-05-21 | 2020-10-23 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method for testing temporary overvoltage limit tolerance characteristic of lightning arrester of direct current transfer switch |
| CN111983409A (en) * | 2020-08-27 | 2020-11-24 | 广州机械科学研究院有限公司 | Evaluation method for insulating property of sulfur hexafluoride gas |
| CN112462217A (en) * | 2020-11-11 | 2021-03-09 | 上海电器科学研究所（集团）有限公司 | High-pressure gas tolerance test device and test method |
| CN112731071A (en) * | 2020-11-30 | 2021-04-30 | 广东电网有限责任公司 | Sulfur hexafluoride breakdown voltage test device |
| CN117110819A (en) * | 2023-10-18 | 2023-11-24 | 清华大学深圳国际研究生院 | Gas insulation strength testing device |
-
2005
- 2005-04-26 CN CN 200510031498 patent/CN1700029A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275927B (en) * | 2008-05-14 | 2011-02-09 | 重庆大学 | Multi-insulated sample local discharge test electrode apparatus |
| CN102313864A (en) * | 2010-06-02 | 2012-01-11 | 富士电机株式会社 | Testing apparatus and method of testing |
| CN102313864B (en) * | 2010-06-02 | 2016-06-29 | 富士电机株式会社 | Test equipment and method of testing |
| CN103175853B (en) * | 2013-03-05 | 2016-07-06 | 云南电力试验研究院（集团）有限公司电力研究院 | A kind of X-laboratory multi-functional, intelligent and device thereof |
| CN103175853A (en) * | 2013-03-05 | 2013-06-26 | 云南电力试验研究院（集团）有限公司电力研究院 | Multifunctional and intelligent X-ray lab and device thereof |
| CN104133162A (en) * | 2013-08-19 | 2014-11-05 | 国家电网公司 | Test research device used for electrical performance research on mixed gas of high-voltage electrical equipment |
| CN104133162B (en) * | 2013-08-19 | 2017-03-22 | 国家电网公司 | Test research device used for electrical performance research on mixed gas of high-voltage electrical equipment |
| CN103822945A (en) * | 2014-03-07 | 2014-05-28 | 国家电网公司 | Sulfur hexafluoride gas testing device with rib-shaped distributed electrode structure |
| CN103822945B (en) * | 2014-03-07 | 2016-02-03 | 国家电网公司 | The sulfur hexafluoride gas verifying attachment of umbrella frame shape distributed electrode structure |
| CN104655968A (en) * | 2015-03-17 | 2015-05-27 | 西安交通大学 | High-temperature low-pressure aging test method |
| CN105606978A (en) * | 2016-03-17 | 2016-05-25 | 国网辽宁省电力有限公司电力科学研究院 | Mixed gas breakdown voltage detector, and mixed gas breakdown voltage prediction method using the same |
| CN105606978B (en) * | 2016-03-17 | 2018-08-07 | 国网辽宁省电力有限公司电力科学研究院 | A kind of mixed gas breakdown voltage detection device and prediction technique |
| CN109696604A (en) * | 2017-10-23 | 2019-04-30 | 平高集团有限公司 | A kind of concentric cylinder SF6Breakdown voltage experimental provision |
| CN108508312A (en) * | 2018-06-21 | 2018-09-07 | 亚洲电力设备(深圳)股份有限公司 | A kind of mixed gas electric property measuring device and its measurement method |
| CN109917242A (en) * | 2019-03-19 | 2019-06-21 | 江苏神马电力股份有限公司 | A kind of material electric characteristic test tooling and its application method |
| CN110108990A (en) * | 2019-05-10 | 2019-08-09 | 沈阳工业大学 | A kind of experimental rig and method for environmental-protective gas-insulating performance study |
| CN110456243A (en) * | 2019-09-04 | 2019-11-15 | 国网电力科学研究院有限公司 | A kind of insulation sample dc breakdown test device |
| CN110748635A (en) * | 2019-10-28 | 2020-02-04 | 江苏众力合创精密机械科技有限公司 | Efficient planetary gear reducer |
| CN111812458A (en) * | 2020-05-21 | 2020-10-23 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method for testing temporary overvoltage limit tolerance characteristic of lightning arrester of direct current transfer switch |
| CN111983409A (en) * | 2020-08-27 | 2020-11-24 | 广州机械科学研究院有限公司 | Evaluation method for insulating property of sulfur hexafluoride gas |
| CN112462217A (en) * | 2020-11-11 | 2021-03-09 | 上海电器科学研究所（集团）有限公司 | High-pressure gas tolerance test device and test method |
| CN112731071A (en) * | 2020-11-30 | 2021-04-30 | 广东电网有限责任公司 | Sulfur hexafluoride breakdown voltage test device |
| CN117110819A (en) * | 2023-10-18 | 2023-11-24 | 清华大学深圳国际研究生院 | Gas insulation strength testing device |
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