CN102346093A - Power transmission line icing broken impulse response test system - Google Patents
Power transmission line icing broken impulse response test system Download PDFInfo
- Publication number
- CN102346093A CN102346093A CN2011100231604A CN201110023160A CN102346093A CN 102346093 A CN102346093 A CN 102346093A CN 2011100231604 A CN2011100231604 A CN 2011100231604A CN 201110023160 A CN201110023160 A CN 201110023160A CN 102346093 A CN102346093 A CN 102346093A
- Authority
- CN
- China
- Prior art keywords
- transmission line
- icing
- power transmission
- data
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a power transmission line icing broken impulse response test system which is characterized in that: a sealing chamber is provided with a power transmission line model system, a lead icing formation system, a data acquisition system and a data processing and analysis system inside, and the power transmission line model system is manufactured according to scaling of a power transmission line structure and a material parameter; the lead icing formation system comprises a refrigeration apparatus, a spraying apparatus and a measuring apparatus; the data acquisition system comprises a sensor, a data optical cable, a data acquisition instrument and an anti-mixing filter amplifier; the data analysis and processing system comprises a displayer, a microprocessor, a printer and a software program. The power transmission line icing broken impulse response test system can realize accurate measurement of impulse response on a transmission tower caused by power transmission line lead and/or grounding wire line broken, simulates situations of icing line broken and no icing line broken, truly reveals and verifies power transmission line icing broken impulse response and collapsing tower destroy mechanisms from a test angle, and provides a practical technical basis for power transmission line ice damage prevention and ice damage fighting.
Description
Technical field
The present invention is a kind of powerline ice-covering broken string shock response pilot system.
Background technology
Powerline ice-covering is a kind of serious disaster, owing to increase because of glaze, rime icing make the loading of transmission line of electricity in many areas, causes broken string, bar (tower) accident happens occasionally.In January, 2008, the ice and snow that China south most of areas has suffered to meet in 50 years one disaster of congealing, this disaster of congealing causes 4,216 transmission lines of electricity in south electric network zone to be destroyed, and direct economic loss reaches more than 1,100 hundred million yuan.Main cause circuit icing load overweight meeting causing lead that transmission line of electricity destroys and/or ground wire broken string; And lead and/or ground wire broken string can produce the temporary impact dynamic response; This impact load not only can cause the circuit vibration; Brought huge impact power and unbalanced tensile force also for simultaneously the transmission tower that bore big icing load originally, when the main supporting member of electric transmission pole tower reached its ultimate bearing capacity, the partial buckling unstability can take place and fall tower in shaft tower.Normally consider for the calculating of icing in overhead transmission line design specifications of China and the standard by the equivalent static load method; Icing, wire breaking impact load for circuit does not relate to, and particularly broken string impacts and causes that tower-line coupled oscillations and the destruction of falling the tower do not relate to the technical Analysis details yet.Chinese scholars is analyzed often through theoretical analysis powerline ice-covering broken string, and conducts a research by means of numerical simulation means, and the impulse test research of icing, wire breaking is not also appeared in the newspapers.
Summary of the invention
The objective of the invention is to have designed a kind of powerline ice-covering broken string shock response pilot system; It can realize the accurate measurement of the shock response that transmission line wire and/or ground wire broken string causes electric transmission pole tower; Can simulate icing, wire breaking, can simulate not icing, wire breaking situation again, disclose and broken string shock response of checking powerline ice-covering and the failure mechanism of falling the tower from the test angle is real.
The objective of the invention is to be realized by following technical scheme: a kind of powerline ice-covering broken string shock response pilot system is characterized in that: in closed chamber 25, be provided with transmission line of electricity model system 21, wire icing formation system 22, data acquisition system (DAS) 23 and data processing and analytic system 24.
Described transmission line of electricity model system 21 comprises electric transmission pole tower 17, lead 10, ground wire 27, insulator 29, gold utensil 28 and the conductor spacer of making by transmission line structure parameter and material parameter reduced scale 30; Described electric transmission pole tower 17 is connected with ground wire 27 through gold utensil 28; Described electric transmission pole tower 17 is connected with lead 10 through gold utensil 28, insulator 29, between lead 10 and lead 10, is provided with conductor spacer 30.
Described wire icing forms system 22 and comprises refrigerating plant, spraying plant and measurement mechanism; Described refrigerating plant comprises ceiling fan 3, wall fan 11, exhaust outlet fan 8 and condenser 12; Described spraying plant is fixed with reserve tank 4 being positioned on closed chamber 25 ceilings at electric transmission pole tower 17 tops, on reserve tank 4 tops surplus valve 42, tensimeter 31 is set respectively, is provided with level sensor 39, water inlet pipe 41 in a side of reserve tank 4; On water inlet pipe 41, be equipped with water inlet switch 40 and high-pressure hydraulic pump 6; Be provided with discharge pipe line switch 34 in the bottom of reserve tank 4, water yield by-pass cock 36, water meter 35 and shower nozzle 5 are set in the bottom of reserve tank 4, be equipped with sparge pipe 7 in the both sides of reserve tank 4; On sparge pipe 7, be equipped with taps 32; Sparge pipe 7 places the top of lead 10, ground wire 27, on sparge pipe 7, is evenly distributed with several sprinkler heads 33, and described measurement mechanism comprises balance 18, slide calliper rule 19.
Described data acquisition system (DAS) 23 is included in the plurality of sensors 43, the plurality of sensors 43 that are provided with on the electric transmission pole tower 17 and is connected with the input end of data collecting instrument 45 through data optical cable 44, and the output terminal of data collecting instrument 45 is connected with anti-aliasing filtering amplifier 46 input ends through data optical cable 44.
Described data processing and analytic system 24 comprise microprocessor 48, display 47 and printer 49; The output terminal of the anti-aliasing filtering amplifier 46 of said data acquisition system (DAS) 23 is connected with microprocessor 48 input ends through data line 50, and the input end of microprocessor 48 is connected with printer 49 with display 47 through data line 50.
The beneficial effect of powerline ice-covering broken string shock response pilot system of the present invention is embodied in: owing in a closed chamber, be provided with transmission line of electricity model system, wire icing formation system, data acquisition system (DAS) and data processing and analytic system; Can realize the accurate measurement of the shock response that transmission line wire and/or ground wire broken string causes electric transmission pole tower; Icing, wire breaking can be simulated, not icing, wire breaking situation can be simulated again; Angle is real to be disclosed and broken string shock response of checking powerline ice-covering and the failure mechanism of falling the tower from testing, and preventing ice damage and anti-ice damage for transmission line of electricity provides practicable technical basis.
Description of drawings
Fig. 1 is a powerline ice-covering broken string shock response test system architecture block scheme of the present invention.
Fig. 2 is a powerline ice-covering broken string shock response test system architecture synoptic diagram of the present invention.
Fig. 3 is a transmission line of electricity model system structural representation.
Lead and conductor spacer syndeton synoptic diagram among Fig. 4 Fig. 3.
Fig. 5 is a spraying plant structural representation in the wire icing system.
Fig. 6 is the data acquisition system (DAS) structural representation.
Fig. 7 data processing and analytic system structural representation.
Among the figure: 1-ceiling, 2-illuminating lamp, 3-ceiling fan, 4-reserve tank, 5-shower nozzle, 6-high-pressure hydraulic pump, 7-sparge pipe; 8-exhaust outlet fan, 9-heat-preserving wall, 10-lead, 11-wall fan, 12-condenser, 13-testing table, 16-electric transmission pole tower base; The 17-electric transmission pole tower, the 18-balance, the 19-slide calliper rule, 20-ground insulation layer, 21-transmission line of electricity model system, the 22-wire icing forms system, 23-data acquisition system (DAS); 24-data processing and analytic system, 25-closed chamber, 26-base concrete, 27-ground wire, 28-gold utensil, 29-insulator, 30-conductor spacer; The 31-tensimeter, 32-taps, 33-sprinkler head, 34-discharge pipe line switch, 35-water meter, 36-water yield by-pass cock; The 39-level sensor, 40-water inlet switch, 41-water inlet pipe, 42-surplus valve, 43-sensor, 44-data optical cable; The 45-data collecting instrument, 46-anti-aliasing filtering amplifier, 47-display, 48-microprocessor, 49-printer, 50-data line.
Embodiment
Utilize accompanying drawing and embodiment that the present invention is described further below:
See figures.1.and.2, powerline ice-covering of the present invention broken string shock response pilot system be growing * wide * height be respectively in the closed chamber 25 of 40 * 10 * 3.5m be provided with transmission line of electricity model system 21, wire icing forms system 22, data acquisition system (DAS) 23 and data processing and analytic system 24.The body of wall 9 of closed chamber 25 is made up of interior exterior wall and thermofin, and thermofin thickness is 80-120mm, and thermofin and ceiling 1 all adopt insulation, heat-barrier material, and the thickness of the thermofin of ceiling 1 and ground insulation layer 20 is 80-120mm, and insulating layer material can be selected the benzene plate for use.Ceiling is equidistantly installed 4 illuminating lamps 2.
With reference to Fig. 2-Fig. 4; Placing transmission line of electricity model systems 21 in the closed chamber 25 is to choose suitable ratio of similitude by transmission line structure geometric similarity, tension and compression rigidity phase Sihe bendind rigidity are similar etc., the transmission line of electricity model of three towers, four lines that electric transmission pole tower 17, lead 10, ground wire 27, insulator 29, gold utensil 28 and the conductor spacer of making through reduced scale 30 formed.Electric transmission pole tower 17 is connected with ground wire 27 through described gold utensil 28, and electric transmission pole tower 17 is connected with lead 10 through gold utensil 28, insulator 29, between lead 10 and lead 10, is provided with conductor spacer 30.Wherein electric transmission pole tower 17 adopts aluminum alloy materials, and lead 10, ground wire 27 adopt steel-cored aluminium strand, and insulator 29 adopts silastic material, and gold utensil 28 adopts steel, and conductor spacer 30 adopts polythene material.
With reference to Fig. 2 and Fig. 5, place the wire icing formation system 22 in the closed chamber 25 to comprise refrigerating plant, spraying plant and measurement mechanism.Described refrigerating plant comprises ceiling fan 3, wall fan 11, exhaust outlet fan 8 and condenser 12.Described spraying plant is fixed with reserve tank 4 being positioned on closed chamber 25 ceilings at electric transmission pole tower 17 tops; On reserve tank 4 tops surplus valve 42, tensimeter 31 are set respectively, are provided with level sensor 39, water inlet pipe 41, on water inlet pipe 41, be equipped with water inlet switch 40 and high-pressure hydraulic pump 6 in a side of reserve tank 4; Be provided with discharge pipe line switch 34 in the bottom of reserve tank 4; Water yield by-pass cock 36, water meter 35 and shower nozzle 5 are set in the bottom of reserve tank 4, are equipped with sparge pipe 7, on sparge pipe 7, be equipped with taps 32 in the both sides of reserve tank 4; Sparge pipe 7 places the top of lead 10, ground wire 27; Lay along the lead direction, on sparge pipe 7, be evenly distributed with several sprinkler heads 33, the spraying plant of this embodiment is by 3 reserve tanks 4 and 3 high-pressure hydraulic pumps 6.Described measurement mechanism comprises balance 18, slide calliper rule 19.Ceiling fan 3, wall fan 11 and exhaust outlet fan 8 can be laid in three directions in space, and natural wind simulating, condenser 12 make the misty rain quick freezing that is sprayed onto on lead 10, ground wire 27 and the electric transmission pole tower 17.Water by several shower nozzles 5 and sprinkler head 33 ejections is the misty rain shape, can real simulated glaze icing.The balance 18 of measurement mechanism, slide calliper rule 19 can be used for detecting the thickness of lead 10, ground wire 27 and electric transmission pole tower 17 icing, further can be converted into wire icing than the icing weight of carrying with electric transmission pole tower 17, and wire icing is the icing weight of every linear meter(lin.m.) lead than carrying.
With reference to Fig. 2 and Fig. 6; Described data acquisition system (DAS) 23 is included in the plurality of sensors 43, the plurality of sensors 43 that are provided with on the electric transmission pole tower 17 and is connected with the input end of data collecting instrument 45 through data optical cable 44, and the output terminal of data collecting instrument 45 is connected with anti-aliasing filtering amplifier 46 input ends through data optical cable 44; Sensor 43 or foil gauge, sensor 43 mainly are placed in the major control section parts of electric transmission pole tower 17, mainly refer to tower head, line bracket, cross-arm, go up lower bent lever junction, tower neck, body of the tower and tower leg position.Data acquisition system (DAS) 23 places on the testing table 13.
With reference to Fig. 2 and Fig. 7; Described data processing and analytic system 24 comprise microprocessor 48, display 47 and printer 49; The output terminal of the anti-aliasing filtering amplifier 46 of said data acquisition system (DAS) 23 is connected with microprocessor 48 input ends through data line 50, and the input end of microprocessor 48 is connected with printer 49 with display 47 through data line 50.Data processing and analytic system 24 place on the testing table 13.Data analysis and Processing System Software program are utilized the establishment of Visual C Plus Plus; Be used for the further analysis and the processing of measured result; Software function module mainly comprises the internal force analysis module, and Displacement Analysis module and acceleration analysis module are the technology that those skilled in the art were familiar with.
Powerline ice-covering broken string shock response process of the test of the present invention is following:
1. at the electric transmission pole tower 17 major control sections of the built-in transmission line of electricity model system 21 of closed chamber 25; Tower head, line bracket, cross-arm, go up the lower bent lever junction; Sensor 43 is laid at tower neck, body of the tower and tower leg position; Plurality of sensors 43 is connected with the input end of data collecting instrument 45 through data optical cable 44, and checks whether all connections are ready;
2. open condenser 12, ceiling fan 3, wall fan 11 and the exhaust outlet fan 8 that wire icing forms system 22; Open high-pressure hydraulic pump 6, shower nozzle 5 and sprinkler head 33, and regulate temperature, wind direction and injection flow rate, after the some time; Measure the ice covering thickness of lead 10, ground wire 27 and electric transmission pole tower 17 through slide calliper rule 19; Take off the long icing section of 100mm from lead 10 or ground wire 27, weigh up icing weight with balance 18, the icing that is scaled lead 10 and ground wire 27 is than carrying.When treating that ice covering thickness reaches requiring of regulation, according to testing program, instantaneous trip lead 10 or ground wire 27 in the relevant position are measured the shock response that broken string causes through data acquisition system (DAS) 23;
With the data transmission of experimental measurement in data analysis and disposal system 24, the data of needs are carried out analyzing and processing, draw complete test findings and conclusion at last, through printer 49 outputs.
Make in icing, wire breaking shock response process of the test that temperature is controlled between-5 ℃～-10 ℃ in the closed chamber 25.
The used components and parts of powerline ice-covering broken string shock response pilot system of the present invention are the commercially available prod.
Wherein: the model of shower nozzle 5, sprinkler head 33 is: HPZ2.5, hydraulic pressure are 2～2.5 atmospheric pressure, and the water yield is 1.5L/min.
The model of ceiling fan 3 and wall fan 11 is: MDF-1802, WV 220V, 50HZ.
Surplus valve 42 models are: XYF08-01, and maximum flow is 50L/min, range of regulation is 1-315MPa.
Tensimeter 31 models are: Y-60B-F, and the environment for use condition is-40 ℃-40 ℃, and hydraulic pressure is 0-160MPa, and accuracy class is 2.5.
Water inlet switch 40, taps 32 and discharge pipe line switch 34 models are: SL-SC, material is a silicon rubber, working temperature-40 ℃-40 ℃.
Level sensor 39 models are: JPG7, working temperature is-40 ℃-40 ℃.
Water regulating valve 36 models: ZL-4M, working temperature is-40 ℃-40 ℃, working pressure 1.6Mpa, precision is 5%.
Water meter 35 models are: HQG-LUGB, precision 1%, working temperature are-40 ℃-40 ℃.
Slide calliper rule 19 are: vernier caliper 160-153 model, specification: 0-600mm resolution: 0.02mm.
Electric transmission pole tower 17 is: aluminum alloy material.
The model machine of transmission line structure icing, wire breaking shock response pilot system of the present invention was normally tried out 1 year, had accomplished the test of relevant item, had realized described goal of the invention and effect.
The embodiment of transmission line structure icing, wire breaking shock response pilot system of the present invention is also non exhaustive, and those skilled in the art all belong to the scope of rights protection of the present invention without any conversion of creative work.
Claims (5)
1. a powerline ice-covering broken string shock response pilot system is characterized in that: in closed chamber (25), be provided with transmission line of electricity model system (21), wire icing formation system (22), data acquisition system (DAS) (23) and data processing and analytic system (24).
2. powerline ice-covering broken string shock response pilot system according to claim 1; It is characterized in that: described transmission line of electricity model system (21) comprises electric transmission pole tower (17), lead (10), ground wire (27), insulator (29), gold utensil (28) and the conductor spacer of making by transmission line structure parameter and material parameter reduced scale (30); Described electric transmission pole tower (17) is connected with ground wire (27) through gold utensil (28); Described electric transmission pole tower (17) is connected with lead (10) through gold utensil (28), insulator (29), between lead (10) and lead (10), is provided with conductor spacer (30).
3. powerline ice-covering broken string shock response pilot system according to claim 1; It is characterized in that: described wire icing forms system (22) and comprises refrigerating plant, spraying plant and measurement mechanism, and described refrigerating plant comprises ceiling fan (3), wall fan (11), exhaust outlet fan (8) and condenser (12); Described spraying plant is fixed with reserve tank (4) being positioned on closed chamber (25) ceiling at electric transmission pole tower (17) top; On reserve tank (4) top surplus valve (42), tensimeter (31) are set respectively; Side at reserve tank (4) is provided with level sensor (39), water inlet pipe (41); On water inlet pipe (41), be equipped with water inlet switch (40) and high-pressure hydraulic pump (6), be provided with discharge pipe line switch (34), water yield by-pass cock (36), water meter (35) and shower nozzle (5) are set in the bottom of reserve tank 4 in the bottom of reserve tank (4); Be equipped with sparge pipe (7) in the both sides of reserve tank (4); On sparge pipe (7), be equipped with taps (32), sparge pipe (7) places the top of lead (10), ground wire (27), on sparge pipe (7), is evenly distributed with several sprinkler heads (33); Described measurement mechanism comprises balance (18), slide calliper rule (19).
4. powerline ice-covering broken string shock response pilot system according to claim 1; It is characterized in that: described data acquisition system (DAS) (23) is included in the last plurality of sensors (43) that is provided with of electric transmission pole tower (17), plurality of sensors (43) is connected with the input end of data collecting instrument (45) through data optical cable (44), and the output terminal of data collecting instrument (45) is connected with anti-aliasing filtering amplifier (46) input end through data optical cable (44).
5. powerline ice-covering broken string shock response pilot system according to claim 1; It is characterized in that: described data processing and analytic system (24) comprise microprocessor (48), display (47) and printer (49); The output terminal of the anti-aliasing filtering amplifier (46) of said data acquisition system (DAS) (23) is connected with microprocessor (48) input end through data line (50), and the input end of microprocessor (48) is connected with printer (49) with display (47) through data line (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100231604A CN102346093A (en) | 2011-01-18 | 2011-01-18 | Power transmission line icing broken impulse response test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100231604A CN102346093A (en) | 2011-01-18 | 2011-01-18 | Power transmission line icing broken impulse response test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102346093A true CN102346093A (en) | 2012-02-08 |
Family
ID=45544969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100231604A Pending CN102346093A (en) | 2011-01-18 | 2011-01-18 | Power transmission line icing broken impulse response test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102346093A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661839A (en) * | 2012-04-28 | 2012-09-12 | 三峡大学 | Overhead conductor micro vibration simulation experiment |
| CN104198844A (en) * | 2014-08-15 | 2014-12-10 | 贵州电力试验研究院 | Natural icing ultrahigh voltage AC/DC test line segment |
| CN104596783A (en) * | 2014-12-08 | 2015-05-06 | 华北电力大学 | Experimental device for simulating dynamic characteristics of high-voltage transmission conductor under action of downburst |
| CN106289702A (en) * | 2016-08-10 | 2017-01-04 | 国家电网公司 | A kind of mechanical guide wire load discharges suddenly device and the method carrying out crossing frame impact experiment |
| CN107907311A (en) * | 2017-07-11 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of wire icing of transmission line unbalanced tensile force test method and system |
| CN109375004A (en) * | 2018-09-29 | 2019-02-22 | 重庆科技学院 | The experimental provision that simulation ice-coating load falls off |
| CN110455511A (en) * | 2019-08-16 | 2019-11-15 | 国网江苏省电力有限公司电力科学研究院 | Measure the experimental rig and test method of compound cross-arm dynamic response under the operating condition that breaks |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210902A (en) * | 1979-01-29 | 1980-07-01 | Kagan Veniamin G | Device for telemetering loads on power transmission line conductors |
| JP2000028448A (en) * | 1998-07-14 | 2000-01-28 | Furukawa Electric Co Ltd:The | Load supervision system for transmission and distribution line |
| CN101526807A (en) * | 2009-03-28 | 2009-09-09 | 东北电力大学 | Transmission line wire ice-weight automatic monitoring and control system |
| CN101666636A (en) * | 2008-09-04 | 2010-03-10 | 华东电力试验研究院有限公司 | Method for monitoring wire icing thickness of iced circuit and straight line tower stress |
| CN101710057A (en) * | 2009-11-11 | 2010-05-19 | 东北电力大学 | Ice-coated test system for transmission line structure |
-
2011
- 2011-01-18 CN CN2011100231604A patent/CN102346093A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210902A (en) * | 1979-01-29 | 1980-07-01 | Kagan Veniamin G | Device for telemetering loads on power transmission line conductors |
| JP2000028448A (en) * | 1998-07-14 | 2000-01-28 | Furukawa Electric Co Ltd:The | Load supervision system for transmission and distribution line |
| CN101666636A (en) * | 2008-09-04 | 2010-03-10 | 华东电力试验研究院有限公司 | Method for monitoring wire icing thickness of iced circuit and straight line tower stress |
| CN101526807A (en) * | 2009-03-28 | 2009-09-09 | 东北电力大学 | Transmission line wire ice-weight automatic monitoring and control system |
| CN101710057A (en) * | 2009-11-11 | 2010-05-19 | 东北电力大学 | Ice-coated test system for transmission line structure |
Non-Patent Citations (1)
| Title |
|---|
| JOHN D MOZER,ET AL.: "Broken wire tests on a model transmission line system", 《IEEE TRANSACTIONS ON POWER APPARATUS AND SYSTEMS》, vol. 100, no. 3, 31 March 1981 (1981-03-31) * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661839A (en) * | 2012-04-28 | 2012-09-12 | 三峡大学 | Overhead conductor micro vibration simulation experiment |
| CN104198844A (en) * | 2014-08-15 | 2014-12-10 | 贵州电力试验研究院 | Natural icing ultrahigh voltage AC/DC test line segment |
| CN104198844B (en) * | 2014-08-15 | 2015-11-18 | 贵州电力试验研究院 | Natural icing ultrahigh voltage AC/DC test line segment |
| CN104596783A (en) * | 2014-12-08 | 2015-05-06 | 华北电力大学 | Experimental device for simulating dynamic characteristics of high-voltage transmission conductor under action of downburst |
| CN104596783B (en) * | 2014-12-08 | 2017-04-26 | 华北电力大学 | Experimental device for simulating dynamic characteristics of high-voltage transmission conductor under action of downburst |
| CN106289702A (en) * | 2016-08-10 | 2017-01-04 | 国家电网公司 | A kind of mechanical guide wire load discharges suddenly device and the method carrying out crossing frame impact experiment |
| CN107907311A (en) * | 2017-07-11 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of wire icing of transmission line unbalanced tensile force test method and system |
| CN107907311B (en) * | 2017-07-11 | 2019-08-06 | 国网浙江省电力公司湖州供电公司 | A kind of wire icing of transmission line unbalanced tensile force test method and system |
| CN109375004A (en) * | 2018-09-29 | 2019-02-22 | 重庆科技学院 | The experimental provision that simulation ice-coating load falls off |
| CN109375004B (en) * | 2018-09-29 | 2020-09-11 | 重庆科技学院 | Experimental device for simulating falling of icing load |
| CN110455511A (en) * | 2019-08-16 | 2019-11-15 | 国网江苏省电力有限公司电力科学研究院 | Measure the experimental rig and test method of compound cross-arm dynamic response under the operating condition that breaks |
| CN110455511B (en) * | 2019-08-16 | 2022-03-15 | 国网江苏省电力有限公司电力科学研究院 | Test device and test method for measuring dynamic response of composite cross arm under wire breakage working condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102346093A (en) | Power transmission line icing broken impulse response test system | |
| CN106840588B (en) | A kind of heavy gas leakage diffusion simulations and inhibit control test system | |
| CN107355684B (en) | A kind of method accident of pipeline network waterpower monitoring experimental system and its realize fault identification | |
| CN102507123B (en) | Test method used for transmission line ice coating disconnection | |
| CN101216479B (en) | Test device for simulating ecological rock mechanical slope protection under rainfall precipitation condition | |
| CN104091046B (en) | A kind of tension tower conducting wire ice covering thickness monitoring method and system based on weight method | |
| CN104316671B (en) | A kind of experimental rig that measures artificial freeze thawing soil frost-heave force and frost heaving amount | |
| CN203101214U (en) | Automatic lever-type weighing lysimeter | |
| CN203310562U (en) | Device for directly measuring concrete lateral pressure | |
| CN201819696U (en) | Comprehensive performance testing device for atomizing system | |
| CN2849654Y (en) | Precision test-bed for comprehensive performance of blow head | |
| CN107340110A (en) | A kind of vibration integrated pilot system of accumulated ice sleet | |
| CN106769690B (en) | A kind of heavy gas leakage diffusion and control research experiment method | |
| CN103321468B (en) | Stay-supported triangular truss anemometer tower | |
| CN204612737U (en) | A kind of adjustable cooling tower performance test survey sensor fixed support | |
| CN209764653U (en) | Water curtain inhibition LNG vapour diffusion effect analysis experiment platform | |
| Harris et al. | Field instrumentation for real‐time monitoring of periglacial solifluction | |
| CN202002925U (en) | Low temperature box for testing mechanical performance of artificially frozen soil | |
| CN104154953A (en) | Automatic observation system for ice blanket | |
| CN107643140A (en) | A kind of fire monitor injection counter-force test experiments platform and its application process | |
| CN103674379A (en) | Nozzle thrust measurement test system | |
| CN204255819U (en) | Transmission line equipment metal erosion loss speed trial specimen appliance under atmospheric environment | |
| CN102735286A (en) | Manual icing testing system based on natural condition and testing method of the manual icing testing system | |
| CN201866526U (en) | Wet adjusting device of liquid level meter for low-temperature gas cylinders | |
| CN205102615U (en) | Intermediate frequency electric stove water cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120208 |
|
| WD01 | Invention patent application deemed withdrawn after publication |