CN203275259U - Direct current porcelain insulator gossan electrocorrosion acceleration test apparatus - Google Patents
Direct current porcelain insulator gossan electrocorrosion acceleration test apparatus Download PDFInfo
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- CN203275259U CN203275259U CN 201220743126 CN201220743126U CN203275259U CN 203275259 U CN203275259 U CN 203275259U CN 201220743126 CN201220743126 CN 201220743126 CN 201220743126 U CN201220743126 U CN 201220743126U CN 203275259 U CN203275259 U CN 203275259U
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Abstract
The utility model relates to a direct current porcelain insulator gossan electrocorrosion acceleration test apparatus, which comprises a direct current power supply system, a sample suspension system, a liquid environment simulation system, an imaging monitoring system, a leakage current measurement system and a drainage system, wherein the direct current power supply system can provide a reliable and stable direct current test voltage, the sample suspension system meets requirements of electrocorrosion acceleration tests of 6 sample insulators under different suspension manners, the liquid environment simulation system can provide a test liquid environment, the imaging monitoring system can perform the whole process image track record on an electrocorrosion process of the sample insulator, the leakage current measurement system can perform real time monitoring on the 6 sample insulators, a signal processing device can perform accumulation calculation on leakage electric quantities of every sample insulator, and the drainage system can treat the test water solution so as to be recycled. The direct current porcelain insulator gossan electrocorrosion acceleration test apparatus has characteristics of simple operation, strong practicality, and high equivalence of the test result and the site actual situation, and can be widely used for direct current porcelain insulator gossan electrocorrosion test researches.
Description
Technical field
The utility model is that a kind of direct current porcelain insulator chapeau de fer accelerates the electrolytic corrosion test device, belongs to the renovation technique that direct current porcelain insulator chapeau de fer accelerates the electrolytic corrosion test device.
Background technology
China is vast in territory, and water energy, coal resources are abundanter, and petroleum and gas resources is relatively poor, and the distributed pole of power generation energy resource distribution of resource and power load is unbalanced.On the one hand, national developable hydroelectric resources has nearly 2/3 to be distributed in western Sichuan, Yunnan, three provinces and regions, Tibet, and 2/3 of coal available reserves is distributed in Shanxi, Shaanxi, three provinces and regions, the Inner Mongol; On the other hand, to the east of East Coastal and Beijing-Guangzhou Railway are along the line, regional economy is flourishing, and power load accounts for 2/3 of the whole nation, and the power generation energy resource resource is wretched insufficiency but.Primary energy and load center area skewness on the geographic position, large capacity need for electricity and long distance power transmission are the distinctive national conditions of China.The characteristics such as HVDC (High Voltage Direct Current) transmission line is far away with its fed distance, transmission capacity is large, loss is low, security and stability is high, save the corridor of transmitting electricity, short-circuit current is low have played vital role for China realizes wider most optimum distribution of resources.Put into operation so far from article one Ge Nan direct current, the development of China high voltage direct current transmission project builds and the DC power transmission line of many different electric pressures that put into operation rapidly.Porcelain insulator has operating experience for many years as one of visual plant of transmission line of electricity.Suspended porcelain insulator is being undertaken and is being hung wire and to the vital task of tower insulation, be widely used on high pressure, UHV (ultra-high voltage) and UHV transmission line all over the world, for various countries' transmission line of electricity safe operation provides reliable guarantee.
Raising along with electric pressure, consider the factor of mechanical property and electrical specification, the extra-high voltage direct-current transmission engineering adopts the V-type string in a large number, under humidity or condition of raining easily in the porcelain insulator chapeau de fer of V-type string downside and porcelain facing gap easily by globule bridge joint, form the current return of concentrating, caused local electrocorrosion phenomenon.In October, 2011, ± 800kV Chu Sui DC power transmission line negative polarity side V-type string is found more than 20000 sheet insulator generation chapeau de fer electrocorrosion phenomenons; In February, 2012, ± 800kV gives again direct current negative polarity side V-type string more than 2000 sheet insulators and also finds chapeau de fer electrocorrosion phenomenon.
Porcelain insulator gold utensil etching problem is concentrated on the corrosion of steel pin substantially both at home and abroad, and early stage hvdc transmission line insulator is taked I string hang mostly, less discovery chapeau de fer corrosion, and the chapeau de fer surface has zinc coat, can suppress the galvanic corrosion of environment, thought in the past and chapeau de fer electrocorrosion problem and not serious also had no so far the report to its electrocorrosion Study on Problems.Therefore, in the urgent need to extra high voltage line V string porcelain insulator chapeau de fer electrocorrosion problem is carried out correlative study, therefore, need development direct current porcelain insulator to accelerate the electrolytic corrosion test device, carry out correlative study.
Summary of the invention
The purpose of this utility model is to consider the problems referred to above and provides a kind of reasonable in design, convenient and practical direct current porcelain insulator chapeau de fer acceleration electrolytic corrosion test device.The utility model satisfies the requirement that direct current porcelain insulator chapeau de fer accelerates electrolytic corrosion test.
The technical solution of the utility model is: direct current porcelain insulator chapeau de fer of the present utility model accelerates the electrolytic corrosion test device, include DC power system, test product suspension, liquid environment simulation system, camera monitoring system, leakage current measurement system, wherein DC power system is electrically connected to the leakage current measurement system, the test product insulator is suspended in the liquid environment simulation system by the test product suspension, the test product insulator is electrically connected to the leakage current measurement system, and the output terminal of leakage current measurement system is electrically connected to signal processing apparatus.
Above-mentioned power-supply system includes pressure regulator, all insulation step-up transformer and full-wave fairing attachment three parts, wherein the primary coil of pressure regulator is connected with power supply, the secondary coil of pressure regulator is connected with the primary coil of all insulation step-up transformer, the input end of full-wave fairing attachment is connected with the secondary coil of all insulation step-up transformer, and the output terminal of full-wave fairing attachment is electrically connected to the leakage current measurement system.
Above-mentioned test product suspension includes 6 the tunnel can make test product to be measured independently accelerate the suspension holdfast of electrolytic corrosion test simultaneously, described suspension holdfast is equilateral triangle, suspension holdfast at least on one side or each limit be provided with and be convenient to the suspension angles regulating device that hangs the hitch point of test product insulator and be convenient to adjust the setting angle of test product insulator, the place, three summits of suspension holdfast is supported by insulation column.
The hang of above-mentioned test product insulator is I type string, V-type string and strain insulator-string; The test product insulator of I type string hang is directly hung to suspension holdfast; The steel pin of the test product insulator of V-type string hang is connected with suspension holdfast (31) with insulating cord, the angle that the length adjustment V by the adjustment insulating cord goes here and there; The high-pressure side of direct voltage source is fixed on the steel pin of test product insulator by metal clip; The strain insulator chapeau de fer of the test product insulator of strain insulator-string hang hangs on annulus hanging point on support by ball-eye, insulating cord connects steel pin and suspension holdfast, realize the strain insulator-string hang by shortening the insulating cord distance, the high-pressure side of direct voltage source is fixed on electric insulator steel foot by metal clip.
The aforesaid liquid environmental simulation system can be realized spraying and the two kinds of liquid environment analog forms of method that drip, include testing laboratory, water tank, shower nozzle, variable valve, wherein spraying also is provided with water pump, the pressurization of employing water pump, the water pump input end is connected with water tank by flexible pipe, output terminal is connected with variable valve, and the variable valve output terminal is bored shower nozzle by solid water evenly is sprayed onto the chapeau de fer of test product insulator and the gap between porcelain facing, and water-jet velocity is in 15～25L/h scope; The water tank of the method for dripping is placed in the top of testing laboratory, water delivering orifice is connected with variable valve by flexible pipe, variable valve output terminal connecting cylinder shape shower nozzle, the cylinder shower nozzle drips to insulator directly over the chapeau de fer of test product insulator and porcelain facing gap, and speed of dropping water is in 0～15L/h scope; Above-mentioned shower nozzle is installed on suspension holdfast.
Also be equiped with in the aforesaid liquid environmental simulation system camera monitoring system of regularly taking is carried out in test product insulator electrocorrosion position, the camera monitoring system is connected with signal processing apparatus.
the bottom of aforesaid liquid environmental simulation system also is equiped with can complete the unwatering system that water circuit utilizes, unwatering system comprises sewage collecting box, unwatering pump and filtering system, sewage collecting box is positioned at the below of the set base plate of testing laboratory of liquid environment simulation system, test water converges to sewage collecting box by the groove on base plate, sewage collecting box has soft pipe connection to unwatering pump, the water side of unwatering pump with the filtering system of the contaminant filter in water can be connected, after the strainer filtering of system, pure water is evacuated to the water tank of liquid environment simulation system under the pressure of unwatering pump after filtration.
The utility model designs according to described scheme, the utlity model has following advantage: 1, DC power system can provide reliable, stable DC experiment voltage; 2, test product suspension can satisfy that under different hangs, 6 road test product insulators accelerate the requirement of electrolytic corrosion test simultaneously; When 3, adopting spraying or the method for dripping to test, water velocity and direction are adjustable flexibly, and the test(ing) liquid environment can be provided preferably; 4, the camera monitoring system can carry out to the electrical corrosion of test product insulator omnidistance picture charge pattern record; 5, the leakage current measurement system can carry out Real-Time Monitoring to 6 road test product insulators, and signal processing apparatus can carry out accumulation calculating to the leakage electric weight of each road test product insulator; 6, unwatering system can be processed and can supply test aqueous solution and recycle.
The utility model is that a kind of design is ingenious, function admirable, and convenient and practical direct current porcelain insulator chapeau de fer accelerates the electrolytic corrosion test device.
Description of drawings
Fig. 1 is the utility model test unit schematic diagram
Fig. 2 is the utility model DC power system figure
Fig. 3 is the utility model test product insulator suspension holdfast structural drawing
Fig. 4 is the utility model spraying test principle figure
Fig. 5 is the utility model method test principle figure that drips
Embodiment
Embodiment:
Structural representation of the present utility model as shown in Figure 1, include DC power system 1, test product suspension 2, liquid environment simulation system 3, camera monitoring system 4, leakage current measurement system 5, wherein DC power system 1 is electrically connected to leakage current measurement system 5, test product insulator 33 is suspended in liquid environment simulation system 3 by test product suspension 2, test product insulator 33 is electrically connected to leakage current measurement system 5, and the output terminal of leakage current measurement system 5 is electrically connected to signal processing apparatus.
As shown in Figure 2, above-mentioned power-supply system 1 includes pressure regulator 7, all insulation step-up transformer 8 and full-wave fairing attachment 9 three parts, wherein the primary coil of pressure regulator 7 is connected with power supply, the secondary coil of pressure regulator 7 is connected with the primary coil of all insulation step-up transformer 8, the input end of full-wave fairing attachment 9 is connected with the secondary coil of all insulation step-up transformer 8, and the output terminal of full-wave fairing attachment 9 is electrically connected to leakage current measurement system 5.Pressure regulator 7 is by the 380V power voltage supply, the control cables of pressure regulator is connected with computer, output terminal is connected with all insulation step-up transformer by cable, and the all-insulation transformer no-load voltage ratio is 380V/35kV, obtains different ac test voltage according to different pressure regulator output voltages.This voltage has been realized stable DC experiment voltage after by full-wave fairing attachment rectification and filtering, and voltage range is 0～30kV, and range of current is 0～2A, and ripple factor is less than 3%.
As shown in Figure 3, above-mentioned test product suspension 2 includes 6 the tunnel can make test product to be measured independently accelerate the suspension holdfast 31 of electrolytic corrosion test simultaneously, described suspension holdfast 31 is equilateral triangle, suspension holdfast 31 at least on one side or each limit be provided with and be convenient to the suspension angles regulating device 32 that hangs the hitch point 35 of test product insulator 33 and be convenient to adjust the setting angle of test product insulator 33, the place, three summits of suspension holdfast 31 is supported by insulation column 34.
Above-mentioned hitch point 35 is the annulus hanging point, hitch point 35 and suspension holdfast 31 insulation, and the chapeau de fer of test product insulator 33 is fixed in hitch point 35 by ball-eye, and is connected with leakage current measurement system 5.
The hang of above-mentioned test product insulator 33 is I type string, V-type string and strain insulator-string; The test product insulator 33 of I type string hang is directly hung to suspension holdfast 31; The steel pin of the test product insulator 33 of V-type string hang is connected with suspension holdfast 31 with insulating cord, the angle of going here and there by the length adjustment V that adjusts insulating cord; The high-pressure side of direct voltage source is fixed on the steel pin of test product insulator 33 by metal clip; The strain insulator chapeau de fer of the test product insulator 33 of strain insulator-string hang hangs on annulus hanging point on support by ball-eye, insulating cord connects steel pin and suspension holdfast, realize the strain insulator-string hang by shortening the insulating cord distance, the high-pressure side of direct voltage source is fixed on electric insulator steel foot by metal clip.
As shown in Figure 1 and Figure 4, aforesaid liquid environmental simulation system 3 can be realized spraying and the two kinds of liquid environment analog forms of method that drip, include testing laboratory, water tank, shower nozzle, variable valve, wherein spraying also is provided with water pump, the pressurization of employing water pump, the water pump input end is connected with water tank by flexible pipe, and output terminal is connected with variable valve, the variable valve output terminal is bored shower nozzle by solid water evenly is sprayed onto the chapeau de fer of test product insulator (33) and the gap between porcelain facing, and water-jet velocity is in 15～25L/h scope; The water tank of the method for dripping is placed in the top of testing laboratory, water delivering orifice is connected with variable valve by flexible pipe, variable valve output terminal connecting cylinder shape shower nozzle, the cylinder shower nozzle drips to insulator directly over the chapeau de fer of test product insulator 33 and porcelain facing gap, and speed of dropping water is in 0～15L/h scope; In the present embodiment, 6 road shower nozzles are installed on supporting bracket 31, all can adjust flexibly water (flow) direction.
In the present embodiment, during the spraying test, the distance between shower nozzle and insulator cap should be between 10～15cm, and the water spray effect is more even.
In the present embodiment, as shown in Figure 4, during the method for dripping test, the distance between shower nozzle and insulator cap should be between 2～3cm, and the water spray effect is more even.
As shown in Figure 1, also be equiped with the camera monitoring system 4 that test product insulator 33 electrocorrosion positions are carried out regularly taking in aforesaid liquid environmental simulation system 3, camera monitoring system 4 is connected with signal processing apparatus.In the present embodiment, camera monitoring system 4 comprises 1 road high-resolution pick-up device, and pixel is 1,210 ten thousand, can regularly take the electrocorrosion position of test product insulator, and the shooting cycle can be set according to testing requirements.
As shown in Figure 1, leakage current measurement system 5 comprises 6 tunnel leakage current measurement device.Leakage current adopts resistive measuring method, for different leakage current scopes, needs to adopt different measuring resistances to carry out stepping and measures, with Reduce measurement error.Measure electric current principle for reading the measuring resistance both end voltage, and be leakage current divided by measuring resistance.Should adopt large resistance to improve the accuracy of measuring when measuring small electric stream; Should adopt when measuring larger electric current small resistor with control survey resistance both end voltage in reasonable measurement range.In the present embodiment, the leakage current measurement scope is set as 5uA～3mA, 3mA～30mA, three gears of 30mA～200mA, and measuring system can automatically switch between different measuring resistances according to electric current gear in test, sample frequency 1kHz.
as shown in Figure 1, the bottom of aforesaid liquid environmental simulation system 3 also is equiped with can complete the unwatering system 6 that water circuit utilizes, unwatering system 6 comprises sewage collecting box 14, unwatering pump 15 and filtering system 16, sewage collecting box 14 is positioned at the below of the set base plate of testing laboratory of liquid environment simulation system 3, test water converges to sewage collecting box 14 by the groove on base plate, sewage collecting box 14 has soft pipe connection to unwatering pump, the water side of unwatering pump with the filtering system 16 of the contaminant filter in water can be connected, after the strainer filtering of system 16, pure water is evacuated to the water tank of liquid environment simulation system 3 under the pressure of unwatering pump after filtration, complete the water circuit utilization.
Claims (10)
1. a direct current porcelain insulator chapeau de fer accelerates the electrolytic corrosion test device, it is characterized in that including DC power system (1), test product suspension (2), liquid environment simulation system (3), camera monitoring system (4), leakage current measurement system (5), wherein DC power system (1) is electrically connected to leakage current measurement system (5), test product insulator (33) is suspended in liquid environment simulation system (3) by test product suspension (2), test product insulator (33) is electrically connected to leakage current measurement system (5), the output terminal of leakage current measurement system (5) is electrically connected to signal processing apparatus.
2. direct current porcelain insulator chapeau de fer according to claim 1 accelerates the electrolytic corrosion test device, it is characterized in that above-mentioned power-supply system (1) includes pressure regulator (7), all insulation step-up transformer (8) and full-wave fairing attachment (9) three parts, wherein the primary coil of pressure regulator (7) is connected with power supply, the secondary coil of pressure regulator (7) is connected with the primary coil of all insulation step-up transformer (8), the input end of full-wave fairing attachment (9) is connected with the secondary coil of all insulation step-up transformer (8), the output terminal of full-wave fairing attachment (9) is electrically connected to leakage current measurement system (5).
3. direct current porcelain insulator chapeau de fer according to claim 2 accelerates the electrolytic corrosion test device, and the rated capacity that it is characterized in that above-mentioned pressure regulator (7) is 60kVA, and input voltage is 380V, and output voltage range is 0-380V; The rated capacity of all insulation step-up transformer (8) is 60kVA, and no-load voltage ratio is 380V/35kV, and middle silicon stack maximum forward current value 2A is put in full-wave rectification, and maximum reverse current is 5uA; The filter capacitor value is 16uF; The output voltage range of full-wave fairing attachment (9) is 0～30kV, and electric current is 0～2A, and ripple factor is less than 3%.
4. direct current porcelain insulator chapeau de fer according to claim 1 accelerates the electrolytic corrosion test device, it is characterized in that above-mentioned test product suspension (2) includes 6 the tunnel and can make test product to be measured independently accelerate the suspension holdfast (31) of electrolytic corrosion test simultaneously, described suspension holdfast (31) is equilateral triangle, one side at least of suspension holdfast (31) or each limit are provided with the hitch point (35) of being convenient to hang test product insulator (33) and are convenient to adjust the suspension angles regulating device (32) of the setting angle of test product insulator (33), the place, three summits of suspension holdfast (31) is supported by insulation column (34).
5. direct current porcelain insulator chapeau de fer according to claim 1 accelerates the electrolytic corrosion test device, it is characterized in that above-mentioned hitch point (35) is the annulus hanging point, hitch point (35) and suspension holdfast (31) insulation, the chapeau de fer of test product insulator (33) is fixed in hitch point (35) by ball-eye, and is connected with leakage current measurement system (5).
6. direct current porcelain insulator chapeau de fer according to claim 1 accelerates the electrolytic corrosion test device, and the hang that it is characterized in that above-mentioned test product insulator (33) is I type string, V-type string and strain insulator-string; The test product insulator (33) of I type string hang is directly hung to suspension holdfast (31); The steel pin of the test product insulator (33) of V-type string hang is connected with suspension holdfast (31) with insulating cord, the angle that the length adjustment V by the adjustment insulating cord goes here and there; The high-pressure side of direct voltage source is fixed on the steel pin of test product insulator (33) by metal clip; The strain insulator chapeau de fer of the test product insulator (33) of strain insulator-string hang hangs on annulus hanging point on support by ball-eye, insulating cord connects steel pin and suspension holdfast, realize the strain insulator-string hang by shortening the insulating cord distance, the high-pressure side of direct voltage source is fixed on electric insulator steel foot by metal clip.
7. direct current porcelain insulator chapeau de fer according to claim 1 accelerates the electrolytic corrosion test device, it is characterized in that aforesaid liquid environmental simulation system (3) can be realized spraying and the two kinds of liquid environment analog forms of method that drip, include testing laboratory, water tank, shower nozzle, variable valve, wherein spraying also is provided with water pump, the pressurization of employing water pump, the water pump input end is connected with water tank by flexible pipe, output terminal is connected with variable valve, the variable valve output terminal is bored shower nozzle by solid water evenly is sprayed onto the chapeau de fer of test product insulator (33) and the gap between porcelain facing, water-jet velocity is in 15～25L/h scope, the water tank of the method for dripping is placed in the top of testing laboratory, water delivering orifice is connected with variable valve by flexible pipe, variable valve output terminal connecting cylinder shape shower nozzle, the cylinder shower nozzle drips to insulator directly over the chapeau de fer of test product insulator (33) and porcelain facing gap, and speed of dropping water is in 0～15L/h scope, above-mentioned shower nozzle is installed on suspension holdfast (31).
8. direct current porcelain insulator chapeau de fer according to claim 1 accelerates the electrolytic corrosion test device, it is characterized in that also being equiped with in aforesaid liquid environmental simulation system (3) the camera monitoring system (4) of regularly taking is carried out in test product insulator (33) electrocorrosion position, camera monitoring system (4) is connected with signal processing apparatus.
9. direct current porcelain insulator chapeau de fer according to claim 1 accelerates the electrolytic corrosion test device, it is characterized in that above-mentioned leakage current measurement system (5) measures in real time to the leakage current of 6 road test product insulators in process of the test, and monitor the real-time waveform of every road leakage current; For the leakage current of different values, automatically select and the handover measurement gear in 5uA～3mA, 3mA～30mA and 30mA～200mA third gear; The leakage electric weight on every road automatically calculates and shows in real time by signal processing apparatus.
10. direct current porcelain insulator chapeau de fer according to claim 1 accelerates the electrolytic corrosion test device, the bottom that it is characterized in that aforesaid liquid environmental simulation system (3) also is equiped with the unwatering system (6) that can complete the water circuit utilization, unwatering system (6) comprises sewage collecting box (14), unwatering pump (15) and filtering system (16), sewage collecting box (14) is positioned at the below of the set base plate of testing laboratory of liquid environment simulation system (3), test water converges to sewage collecting box (14) by the groove on base plate, sewage collecting box (14) has soft pipe connection to unwatering pump, the water side of unwatering pump with the filtering system (16) of the contaminant filter in water can be connected, after the strainer filtering of system (16), pure water is evacuated to the water tank of liquid environment simulation system (3) under the pressure of unwatering pump after filtration.
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| CN 201220743126 CN203275259U (en) | 2012-12-29 | 2012-12-29 | Direct current porcelain insulator gossan electrocorrosion acceleration test apparatus |
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| CN 201220743126 CN203275259U (en) | 2012-12-29 | 2012-12-29 | Direct current porcelain insulator gossan electrocorrosion acceleration test apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063559A (en) * | 2012-12-29 | 2013-04-24 | 南方电网科学研究院有限责任公司 | Accelerated electrocorrosion test device of direct-current porcelain insulator iron cap |
| CN104634721A (en) * | 2014-12-05 | 2015-05-20 | 国家电网公司 | Grounding grid accelerated corrosion testing device |
| CN106680194A (en) * | 2017-03-07 | 2017-05-17 | 云南电网有限责任公司电力科学研究院 | Insulator metal fitting corrosion experimental device and experimental method |
| CN106908376A (en) * | 2017-03-06 | 2017-06-30 | 云南电网有限责任公司电力科学研究院 | A kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator |
| CN106908372A (en) * | 2017-03-07 | 2017-06-30 | 云南电网有限责任公司电力科学研究院 | A kind of insulator hardware corrosion detecting method and test experience data system |
| CN109269973A (en) * | 2018-09-29 | 2019-01-25 | 国网四川省电力公司电力科学研究院 | Insulators on HVDC Transmission Line fitting DC electric field corrosion experiment system and method |
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2012
- 2012-12-29 CN CN 201220743126 patent/CN203275259U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063559A (en) * | 2012-12-29 | 2013-04-24 | 南方电网科学研究院有限责任公司 | Accelerated electrocorrosion test device of direct-current porcelain insulator iron cap |
| CN103063559B (en) * | 2012-12-29 | 2015-08-26 | 南方电网科学研究院有限责任公司 | A kind of Direct-current porcelain insulator chapeau de fer accelerates electrolytic corrosion test device |
| CN104634721A (en) * | 2014-12-05 | 2015-05-20 | 国家电网公司 | Grounding grid accelerated corrosion testing device |
| CN104634721B (en) * | 2014-12-05 | 2017-11-28 | 国家电网公司 | Utilize a kind of test method for grounded screen accelerated corrosion experimental rig |
| CN106908376A (en) * | 2017-03-06 | 2017-06-30 | 云南电网有限责任公司电力科学研究院 | A kind of metal-ware electrolytic etching Monitoring Data system of DC Insulator |
| CN106680194A (en) * | 2017-03-07 | 2017-05-17 | 云南电网有限责任公司电力科学研究院 | Insulator metal fitting corrosion experimental device and experimental method |
| CN106908372A (en) * | 2017-03-07 | 2017-06-30 | 云南电网有限责任公司电力科学研究院 | A kind of insulator hardware corrosion detecting method and test experience data system |
| CN109269973A (en) * | 2018-09-29 | 2019-01-25 | 国网四川省电力公司电力科学研究院 | Insulators on HVDC Transmission Line fitting DC electric field corrosion experiment system and method |
| CN109269973B (en) * | 2018-09-29 | 2021-03-26 | 国网四川省电力公司电力科学研究院 | DC electric transmission line insulator hardware DC electric field corrosion experiment system and method |
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