CN103591745B - A kind of V-type insulator chain snowberg test snow making apparatus and method of operating thereof - Google Patents
A kind of V-type insulator chain snowberg test snow making apparatus and method of operating thereof Download PDFInfo
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- CN103591745B CN103591745B CN201310574345.3A CN201310574345A CN103591745B CN 103591745 B CN103591745 B CN 103591745B CN 201310574345 A CN201310574345 A CN 201310574345A CN 103591745 B CN103591745 B CN 103591745B
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- 239000012212 insulator Substances 0.000 title claims abstract description 62
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000007921 spray Substances 0.000 claims abstract description 50
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 239000000443 aerosol Substances 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 239000008400 supply water Substances 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 2
- 238000007710 freezing Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 5
- 239000005413 snowmelt Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 108010066057 cabin-1 Proteins 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Abstract
The invention provides a kind of V-type insulator chain snowberg test snow making apparatus and method of operating thereof, this device comprises experimental cabin, water supplying unit and air supply unit, air supply unit is arranged in experimental cabin, experimental cabin inner top is provided with support, spray gun is provided with directly over support, its improvements are, spray gun is connected with air supply unit and water supplying unit respectively by pipeline; The V-shaped arrangement of insulator hangs on support, and the gas in spray gun, water mixed aerosol are sprayed by nozzle, in experimental cabin, form snowfall; By regulating waterway electromagnetic valve and electromagnetic valve of gas circuit, water supply flow and gas supply flow can be regulated, guarantee that the snowberg dropped on V-type insulator chain meets test requirements document.With prior art ratio, V-type insulator chain snowberg test snow making apparatus provided by the invention and method of operating thereof, make the snowberg position on insulator chain, thickness, density, area, temperature, uniformity and snowmelt electrical conductivity adjustable, to reach effective snowberg environmental test.
Description
Technical field
The present invention relates to a kind of snow making apparatus, specifically relate to a kind of V-type insulator chain snowberg test snow making apparatus and method of operating thereof.
Background technology
The electric energy that generator sends after transformer boost, then realizes transmitting electricity through the control appliance such as breaker access transmission line of electricity.Divide by version, transmission line of electricity is divided into overhead transmission line and cable run.Overhead transmission line be erected at ground the circuit be made up of overhead line structures, wire, insulator, line hardware, bracing wire, pole and tower foundation, earthing or grounding means etc. on.Divide according to the character of conveying electric current, transmission of electricity is divided into ac transmission and direct current transportation.
In recent years, constantly accelerate along with China Power developing steps, China Power Grids is also developed rapidly, and network system working voltage grade improves constantly, and network size also constantly expands.Current power grid construction has become the Main way of China's power construction, will build up strong intelligent grid comprehensively, tentatively realize the target of building world class electrical network to the year two thousand twenty.
At present; have a lot of local phenomenon that all can have insulator one-time continuous snowberg a couple of days and even several weeks, and insulator chain runs in sleet or snow melt process, often arcing fault can occur; injure the safe and stable operation of power system, cause adverse influence to the production of user and life.
In most of the cases accumulated snow can not increase the possibility of flashover substantially, and the situation causing snow to dodge is uncommon comparatively speaking, and they comprise: fine and close accumulated snow, namely snow slush or closely knit snow, instead of dry and soft snow;
Accumulated snow is closely adhered to insulator surface; The even accumulated snow of bridge joint insulator 60-100% dry arcing distance; Be full of umbrella disk depth thus the thicker snow deposit in space between dry arcing distance or multiple insulators of being arranged in parallel between bridge joint insulator cluster parachute; The good snow deposit of electric conductivity, can affect the Potential distribution of insulator surface and support restriking of alternating current arc; The filth migration of insulator surface enters in the middle of snow deposit.Suitable man-made chamber method can reappear all important environmental factor causing snow to dodge, and carries out experimental study, Reasonable adjustment insulator parameter, avoid the frequent generation of this type of accident as far as possible so that flash to resemble to snow.
Summary of the invention
For the simulated test of satisfied different operating mode, the invention provides a kind of V-type insulator chain snowberg test snow making apparatus and method of operating thereof, make the snowberg position on insulator chain, thickness, density, area, temperature, uniformity and snowmelt electrical conductivity adjustable, to reach effective snowberg environmental test.
The object of the invention is to adopt following technical proposals to realize:
A kind of V-type insulator chain snowberg test snow making apparatus provided by the invention, described device comprises experimental cabin, water supplying unit and air supply unit, described air supply unit is arranged in described experimental cabin, described experimental cabin inner top is provided with support, be provided with spray gun directly over described support, its improvements are: described spray gun is connected with air supply unit and water supplying unit respectively by pipeline;
Described water supplying unit comprises water tank, water pump, filter, refrigeration unit and plate type heat exchanger; Described water tank is provided with outlet conduit in parallel, and wherein a road is arranged in series described water pump, filter and plate type heat exchanger successively, and another road is provided with waterway electromagnetic valve; The water supply line that described parallel pipeline is connected with described spray gun is provided with waterway electromagnetic valve; Described refrigeration unit is connected with plate type heat exchanger;
Described water pump and filter are parallel with relief valve bypass;
Parallel pipeline described in the branch road slope aspect of described waterway pipe, described parallel pipeline bottom is provided with emptying solenoid valve, for evacuated tube internal water accumulation.
Wherein, described water tank is provided with freezing water intaking pipe road and sewer pipe.
Wherein, described waterway pipe is provided with insulation insulating barrier.
Wherein, the air compressor of described air supply unit is connected with described spray gun by steam line, and described steam line is provided with pressure-reducing valve and electromagnetic valve of gas circuit.
Wherein, the air pressure that described air compressor provides is 0.3MPa.
Wherein, experimental cabin is cylinder closed structure, and wall is covered with insulation construction, and in cabin, temperature is-10 DEG C.
Wherein, insulator is arranged on the bracket, and quantity is more than or equal to 2, and serial connection insulator is on the bracket V-type distribution.
Wherein, the nozzle of described spray gun and the distance of V-type insulator chain are 1 ~ 2m.
Wherein, described spray gun is pressure sending type automatic spray gun, and quantity is more than or equal to 2, and the bore of nozzle is 0.8mm.
Wherein, described nozzle is wound around heat tape.
The present invention is based on the method for operating of a kind of V-type insulator chain snowberg test snow making apparatus that another object provides, its improvements are, described method comprises the steps:
1, Selection experiment insulator is also cleaned, and answer presoil if necessary, then at room temperature dried by insulator and be cooled to-7 DEG C ~-5 DEG C, this temperature is accumulating processes of snowpack design temperature;
2, need by the temperature stabilization in experimental cabin at-10 DEG C before test, when needs snowfall, the waterway electromagnetic valve in ON cycle pump and water tank outlet conduit in parallel, and close the waterway electromagnetic valve between outlet conduit in parallel and spray gun, make pre-cold water form loop;
3, opening refrigeration unit, being chilled to 1 ~ 3 DEG C by plate type heat exchanger in advance by needing the water of precooling;
4, close the waterway electromagnetic valve in water tank outlet conduit in parallel, and open the waterway electromagnetic valve between outlet conduit in parallel and spray gun, supply water to spray gun; Unlatching air compressor and electromagnetic valve of gas circuit are to spray gun air feed simultaneously; Gas in spray gun, water mixed aerosol are sprayed by nozzle, in experimental cabin, form snowfall; By regulating waterway electromagnetic valve between outlet conduit in parallel and spray gun and electromagnetic valve of gas circuit, water supply flow and gas supply flow can be regulated, guarantee that the snowberg dropped on V-arrangement insulator chain meets test requirements document;
5, last, the waterway electromagnetic valve of spray gun is closed, opens emptying solenoid valve, by emptying for the ponding in water supply line.
Compared with the prior art, the beneficial effect that the present invention reaches is:
1, the snowberg position on insulator chain, thickness, density, area, temperature, uniformity and snowmelt electrical conductivity are adjustable.
2, simple to operate, flexible, cost of investment is low, but can reach good artificial snow effect.
3, the salinity of water can manual adjustments.
4, automatic spray gun position is adjustable, and the spray angle of nozzle can change flexibly.
5, by regulating jet velocity, adjustable water flow and the gas supply flow of nozzle.
6, conveniently can change different snowberg operating mode, the arcing fault run in sleet or snow melt process insulator chain is carried out test simulation and is researched and analysed.
Accompanying drawing explanation
Fig. 1 is: V-type insulator chain snowberg test snow making apparatus front cross-section view provided by the invention;
Fig. 2 is: V-type insulator chain snowberg test snow making apparatus snowfall system diagram provided by the invention;
Wherein: 1, experimental cabin; 2, water supplying unit; 3, air supply unit; 101, spray gun; 102, insulator; 103, support; 201, water supply line; 202, water supply line; 203, water supply line; 204, waterway electromagnetic valve; 205, waterway electromagnetic valve; 206, waterway electromagnetic valve; 207, waterway electromagnetic valve; 208, relief valve; 209, water tank; 210, water pump; 211, filter; 212, refrigeration unit; 213, plate type heat exchanger; 301, steam line; 302, electromagnetic valve of gas circuit; 303, electromagnetic valve of gas circuit; 304, pressure-reducing valve; 305, air compressor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The present embodiment is for V-type insulator chain snowberg test snow making apparatus, as shown in Figure 1 to Figure 2, the V-type insulator chain snowberg test snow making apparatus that the embodiment of the present invention provides comprises: experimental cabin 1, water supplying unit 2, air supply unit 3, spray gun 101, insulator 102, support 103, water supply line 201, water supply line 202, water supply line 203, waterway electromagnetic valve 204, waterway electromagnetic valve 205, waterway electromagnetic valve 206, waterway electromagnetic valve 207, relief valve 208, water tank 209, water pump 210, filter 211, refrigeration unit 212, plate type heat exchanger 213, steam line 301, electromagnetic valve of gas circuit 302, electromagnetic valve of gas circuit 303, pressure-reducing valve 304, air compressor 305.
Wherein, experimental cabin 1 is cylinder closed structure, and wall is covered with insulation construction, in cabin, temperature maintains-10 DEG C, the support 103 of experimental cabin 1 inner upper hangs the V-arrangement insulator chain be made up of insulator 102, the nozzle of spray gun 101 and the distance of V-arrangement insulator chain are 1 ~ 2m, and before guaranteeing to drop to V-arrangement insulator chain, the moisture absorbed in air forms artificial snow.
Water supplying unit 2 supplies water to the spray gun 101 in experimental cabin 1, and wherein water supply line 206, waterway electromagnetic valve 204, waterway electromagnetic valve 206 and waterway electromagnetic valve 207 are positioned at the inside of experimental cabin 1; A part for water supply line 201, water supply line 202 and water supply line 203, waterway electromagnetic valve 205, water pump 210, filter 211, relief valve 208, plate type heat exchanger 213, refrigeration unit 212 is positioned at the outside of experimental cabin 1.Water route pipeline installs insulation insulating barrier, ensures that the snowfall water in pipe carries out good heat insulation with extraneous; When each branch road is installed, slope aspect is needed to be responsible for, when guaranteeing emptying, anhydrous in pipeline; Emptying solenoid valve is arranged at supervisor bottom, water route, for evacuated tube internal water accumulation; After the waterway electromagnetic valve of spray gun 101 is closed, emptying solenoid valve is opened, evacuated tube internal water accumulation.
According to the requirement of snowfall thickness and area, determine water supply flow; According to snowfall uniformity requirement, arrangement and the assignment of traffic scheme of spray gun 101 nozzle is set; The model of water tank 209 is chosen to ensure the water demand of snowfall, the material selection stainless steel of water tank 209 or fiberglass according to designing requirement; The water source provided for snowfall should carry out being chilled to 1 ~ 3 DEG C in advance in advance, is the chilled water of 4 ~ 5 DEG C, determines the refrigerating capacity that precooling needs, thus choose the model of refrigeration unit 212 according to snowfall institute's water requirement and existing temperature.
Air compressor 305 in air supply unit 3 is placed in experimental cabin 1, and for providing compressed air to spray gun 101, compressed-air actuated temperature is identical with the interior temperature of experimental cabin 1, and the air pressure that air compressor 305 provides is 0.3MPa.
Spray gun 101 is pressure sending type automatic spray gun, and nozzle diameter is 0.8mm, supply a road compressed air and a water route, road to it simultaneously, determine quantity and the disposing way of spray gun 101 according to the size of concrete snowfall area and snowfall; Be arranged on by the nozzle of spray gun 101 directly over V-arrangement insulator chain, nozzle location can adjust according to actual needs, because nozzle spray angle is adjustable, test structure can be made more flexible.The nozzle place of spray gun 101 is exposed in experimental cabin, easily freezes, and need be wound around heat tape, carries out antifreeze process.
The present invention is based on the method for operating of a kind of V-type insulator chain snowberg test snow making apparatus that another object provides, step is as follows:
1, Selection experiment insulator 102 is also cleaned, and answer presoil if necessary, then at room temperature dried by insulator 102 and be cooled to-7 DEG C ~-5 DEG C, this temperature is accumulating processes of snowpack design temperature;
2, need by the temperature stabilization in experimental cabin 1 at-10 DEG C before test, when needs snowfall, ON cycle pump and waterway electromagnetic valve 205, and close waterway electromagnetic valve 204, make pre-cold water form loop;
3, opening refrigeration unit 212, being chilled to 1 ~ 3 DEG C by plate type heat exchanger 213 in advance by needing the water of precooling;
4, waterway electromagnetic valve 205 is closed, and open water way solenoid valve 204, supply water to spray gun 101; Open air compressor 305 and electromagnetic valve of gas circuit 302 and electromagnetic valve of gas circuit 302 to spray gun 101 air feed simultaneously; Gas in spray gun 101, water mixed aerosol are sprayed by nozzle, in experimental cabin 1, form snowfall; By regulating waterway electromagnetic valve 204, electromagnetic valve of gas circuit 302 and electromagnetic valve of gas circuit 303, water supply flow and gas supply flow can be regulated, guarantee that the snowberg dropped on V-arrangement insulator chain meets test requirements document;
5, last, the waterway electromagnetic valve 204 of spray gun 101, waterway electromagnetic valve 206 and waterway electromagnetic valve 207 are closed, opens emptying solenoid valve, by emptying for the ponding in water supply line.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (11)
1. a V-type insulator chain snowberg test snow making apparatus, described device comprises experimental cabin, water supplying unit and air supply unit, described air supply unit is arranged in described experimental cabin, described experimental cabin inner top is provided with support, be provided with spray gun directly over described support, it is characterized in that: described spray gun is connected with air supply unit and water supplying unit respectively by pipeline;
Described water supplying unit comprises water tank, water pump, filter, refrigeration unit and plate type heat exchanger; Described water tank is provided with water supply line in parallel, and wherein a road is arranged in series described water pump, filter and plate type heat exchanger successively, and another road is provided with waterway electromagnetic valve; The water supply line that the water supply line of described parallel connection is connected with described spray gun is provided with waterway electromagnetic valve; Described refrigeration unit is connected with plate type heat exchanger;
Described water pump and filter are parallel with relief valve bypass;
Water supply line in parallel described in the branch road slope aspect of described water supply line, the water supply line bottom of described parallel connection is provided with emptying solenoid valve, for evacuated tube internal water accumulation.
2. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, is characterized in that: described water tank is provided with freezing water intaking pipe road and sewer pipe.
3. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, is characterized in that: described water supply line is provided with insulation insulating barrier.
4. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, is characterized in that: the air compressor of described air supply unit is connected with described spray gun by steam line, and described steam line is provided with pressure-reducing valve and electromagnetic valve of gas circuit.
5. V-type insulator chain snowberg test snow making apparatus as claimed in claim 4, is characterized in that: the air pressure that described air compressor provides is 0.3MPa.
6. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, it is characterized in that: experimental cabin is cylinder closed structure, and wall is covered with insulation construction, in cabin, temperature is-10 DEG C.
7. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, is characterized in that: insulator is arranged on the bracket, and quantity is more than or equal to 2, and serial connection insulator is on the bracket V-type distribution.
8. V-type insulator chain snowberg test snow making apparatus as claimed in claim 7, is characterized in that: the nozzle of described spray gun and the distance of V-type insulator chain are 1 ~ 2m.
9. V-type insulator chain snowberg test snow making apparatus as claimed in claim 8, it is characterized in that: described spray gun is pressure sending type automatic spray gun, and quantity is more than or equal to 2, the bore of nozzle is 0.8mm.
10. V-type insulator chain snowberg test snow making apparatus as claimed in claim 9, is characterized in that: described nozzle is wound around heat tape.
The method of operating of 11. 1 kinds of V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, it is characterized in that, described method comprises the steps:
(1) Selection experiment insulator is also cleaned, and answer presoil if necessary, then at room temperature dried by insulator and be cooled to-7 DEG C ~-5 DEG C, this temperature is accumulating processes of snowpack design temperature;
(2) need the temperature stabilization in experimental cabin at-10 DEG C before test, when needs snowfall, ON cycle pump and the ducted waterway electromagnetic valve of water tank parallel pumping, and close the waterway electromagnetic valve between parallel pumping pipeline and spray gun, make pre-cold water form loop;
(3) opening refrigeration unit, being chilled to 1 ~ 3 DEG C by plate type heat exchanger in advance by needing the water of precooling;
(4) close the ducted waterway electromagnetic valve of water tank parallel pumping, and open the waterway electromagnetic valve between parallel pumping pipeline and spray gun, supply water to spray gun; Unlatching air compressor and electromagnetic valve of gas circuit are to spray gun air feed simultaneously; Gas in spray gun, water mixed aerosol are sprayed by nozzle, in experimental cabin, form snowfall; By the waterway electromagnetic valve between adjustment parallel pumping pipeline and spray gun and electromagnetic valve of gas circuit, water supply flow and gas supply flow can be regulated, guarantee that the snowberg dropped on V-arrangement insulator chain meets test requirements document;
(5) last, the waterway electromagnetic valve of spray gun is closed, opens emptying solenoid valve, by emptying for the ponding in water supply line.
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| CN201310574345.3A CN103591745B (en) | 2013-11-15 | 2013-11-15 | A kind of V-type insulator chain snowberg test snow making apparatus and method of operating thereof |
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| CN201310574345.3A CN103591745B (en) | 2013-11-15 | 2013-11-15 | A kind of V-type insulator chain snowberg test snow making apparatus and method of operating thereof |
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| CN103591745B true CN103591745B (en) | 2016-04-20 |
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| KR101671478B1 (en) * | 2015-06-17 | 2016-11-01 | 동부대우전자 주식회사 | A refrigerator capable of making snow ice and method thereof |
| CN105259484A (en) * | 2015-11-03 | 2016-01-20 | 云南电网有限责任公司电力科学研究院 | Guano propulsion device of overhead transmission lines |
| CN106199353A (en) * | 2016-06-27 | 2016-12-07 | 中国电力科学研究院 | Extra-high voltage insulator snow slush flashover test method |
| CN106291291B (en) * | 2016-10-10 | 2018-03-06 | 国网天津市电力公司 | A kind of power external insulation snow slush conductance property detection method |
| CN106501686B (en) * | 2016-10-10 | 2019-07-05 | 国网天津市电力公司 | It is a kind of for analyzing the test method of snow slush flashover performance |
| CN107062727B (en) * | 2017-03-28 | 2020-06-02 | 南京师范大学 | Snow making system for performance testing device of freezing and refrigerating cabinet |
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| CN107314587B (en) * | 2017-08-02 | 2023-04-25 | 北京大学 | Artificial snow making system and method at temperature of above 0 DEG C |
| CN107367100B (en) * | 2017-08-15 | 2020-05-12 | 优科特气技术（北京）有限公司 | System and method for making snow artificially by using liquid nitrogen |
| CN109174829B (en) * | 2018-07-23 | 2021-08-24 | 中国电力科学研究院有限公司 | Extra-high voltage equipment remote snow removing method based on hot air snow removing device |
| CN109539651B (en) * | 2018-12-06 | 2020-07-28 | 天津商业大学 | Snow making machine based on ejector |
| CN111157436B (en) * | 2020-01-06 | 2023-07-18 | 宁波送变电建设有限公司永耀科技分公司 | Climate simulation device for salt spray experiment machine |
| CN113830328B (en) * | 2021-11-30 | 2022-02-18 | 中国飞机强度研究所 | Simulation device and simulation method for snowing environment of aircraft complete machine test |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03125877A (en) * | 1989-10-11 | 1991-05-29 | Hitachi Ltd | Artificial snow falling device and snow falling method |
| US6164556A (en) * | 1999-04-01 | 2000-12-26 | Dupre; Herman K. | Portable snow making system for home use |
| JP4289776B2 (en) * | 2000-10-24 | 2009-07-01 | 株式会社東洋製作所 | Sherbet snow production spray device |
| CN202973701U (en) * | 2012-11-08 | 2013-06-05 | 中国电器科学研究院有限公司 | Snowfall device for artificial climate environmental test chamber |
| CN203586642U (en) * | 2013-11-15 | 2014-05-07 | 国家电网公司 | Snowmaking device for V-shaped insulator string snow-covering test |
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Effective date of registration: 20160817 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee after: China Electric Power Research Institute Patentee after: State Grid Corporation of China Patentee after: STATE GRID SHANXI ELECTRIC POWER CO., LTD. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: China Electric Power Research Institute |