CN105305353A - Ice monitoring device of power transmission line - Google Patents
Ice monitoring device of power transmission line Download PDFInfo
- Publication number
- CN105305353A CN105305353A CN201510779461.8A CN201510779461A CN105305353A CN 105305353 A CN105305353 A CN 105305353A CN 201510779461 A CN201510779461 A CN 201510779461A CN 105305353 A CN105305353 A CN 105305353A
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- transmission line
- power transmission
- bullet
- support bar
- icing
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Abstract
An ice monitoring device of a power transmission line is characterized by comprising a plurality of monitoring instrument assemblies, wherein each monitoring instrument comprises a hollow shell, the hollow shell comprises a bottom surface, a side wall arranged on the bottom surface and a top cover arranged on the side wall, a part of the bottom surface is removed, and the shell also comprises a cone-shaped body arranged under the bottom surface, a liftable support rod on the bottom surface and the power transmission line arranged on the support rod.
Description
Technical field
The present invention relates to a kind of monitoring and measurement of ice covering on transmission lines, belong to the power transmission and distribution field of electric power.
Background technology
Power transmission line in the winter time time there will be icing phenomenon, this is called optical imaging, after freezing the harm that produces mainly comprise following some: 1) damage shaft tower.Line ice coating is blocked up, and the loading of shaft tower machinery can be made more to carry and fracture; 2) line tripping.For the circuit of wire vertical arrangement, when the icing instantly on layer conductor first comes off (icing on wire not necessarily comes off simultaneously), wire will rise rapidly or upper and lower jump, causes phase fault, line switching is tripped, power failure; 3) insulator string tilts, wire is seriously sagging.When ice covering thickness in each span of circuit is uneven, conducting wire sag will great changes will take place, and cause suspension insulator to tilt, gold utensil bears larger horizontal direction active force.In the span that icing is blocked up, wire can be caused seriously sagging and ground fault occurs; 4), after insulator string icing, greatly insulation property can be reduced.When suspension insulator icing dissolves, may icicle be formed, make insulator string short circuit, cause ground fault.So after power transmission line appearance is frozen, should remove icing in time, to avoid the generation of above-mentioned situation, the judgement for icing mainly comprises 2 points, be exactly a bit want freezing of Timeliness coverage power transmission line, accurately will measure the thickness of icing layer more exactly.The ubiquitous problem of prior art is exactly judge to be forbidden for ice covering thickness; there is time error also very large; judgement often can be caused to make a fault; thus cause the error in decision-making; the present invention puts forward for this problem just, object be just to provide a kind of can the device and method of precise monitoring transmission line icing thickness.
Summary of the invention
According to one embodiment of the invention, a kind of ice covering on transmission lines monitoring device, it is characterized in that: ice covering on transmission lines monitoring device is by multiple monitoring devices assembly, each monitoring devices comprises hollow housing, this housing comprises bottom surface, the top cover being positioned at the sidewall on bottom surface and being positioned on sidewall, and wherein a part is removed in bottom surface, at the lower surface of described bottom surface, the big opening end of bullet is just in time connected to the edge of bottom surface removal part, at the upper surface of described bottom surface, be close to described edge in the both sides of removing part edge and be provided with liftable support bar, liftable support bar is two, power transmission line is connected between two liftable support bars, the length of power transmission line is a bit larger tham the spacing between two liftable support bars, to make power transmission line be installed to after between two support bars, the height in the middle of power transmission line is not higher than the height of two end supports bar, the top cover of housing is made up of two symmetrical half top covers, on each half top cover, the position corresponding with support bar is provided with semi-circular indentation, the diameter of semi-circular indentation is a bit larger tham the diameter of support bar, and two symmetrical half top covers can dock closure casing and open the space of exposing enclosure interior, also there is heater in the inside of housing, bullet itself is non-conductive, there is the protruding conducting ring of multiple unconnected inner surface relative to bullet in bullet, the solvent for strengthening water conductivity is also provided with in bullet, conducting ring has breach, form a unconnected conducting ring thus, in bullet, each non-interconnected conducting ring is all connected with controller, namely enter in bullet when the icing on power transmission line melts after for water, solvent after entering bullet in instant solution bullet thus make melt frozen water there is conductivity, after the height of ponding is more than a unconnected conducting ring, namely the early warning signal that generation one is corresponding with this non-interconnected conducting ring depth of water in controller, like this, power transmission line icing in various degree can produce the different thawing water yields, thus the non-interconnected conducting ring of differing heights in bullet can be flooded, thus produce different early warning signals, by melting the icing on power transmission line in the different moment, can judge what kind of situation the ice covering thickness of power transmission line reaches, also namely by arranging multiple monitoring devices, and multiple monitoring devices is heated progressively, the monitored over time of transmission line icing thickness can be realized.
According to one embodiment of the invention, the shape of described housing is cuboid or cylinder.
According to one embodiment of the invention, described heater is arranged on described sidewall.
According to one embodiment of the invention, after described support bar rises, the height on top is higher than described top cover at least 10cm.
According to one embodiment of the invention, described power transmission line is installed to after between support bar, and the height in the middle of power transmission line is lower than supporting bar top 5mm.
According to one embodiment of the invention, the water after the icing on selected power transmission line melts all enters bullet, and support bar can not enter in described conical hopper after icing with it melts.
According to one embodiment of the invention, provide a kind of method of carrying out ice covering on transmission lines monitoring, it is characterized in that comprising the following steps:
1) form monitoring device by multiple monitoring devices, choose the power transmission line of material identical with tested power transmission line and size, length is a bit larger tham the spacing between enclosure interior two support bar;
2) top cover of the housing of multiple monitoring devices is opened, also namely two and half top covers retreat two support bars exposing enclosure interior respectively, then support bar is risen, until support bar is raised to the outside of housing, and the height of supporting bar top distance Casing top is greater than more than 10cm, then power transmission line is arranged on two support bars, more closed top cover; Or in advance power transmission line is arranged on two support bars, when needs are measured, directly support bar is risen, thus it is outer and make the height of power transmission line distance Casing top be greater than more than 10cm power transmission line to be risen from housing;
3) the whole measurement be made up of multiple monitoring devices be placed in the outdoor position contour with tested power transmission line and keep the regular hour, making selected power transmission line produces the icing structure identical with tested power transmission line;
4) according to the predetermined moment, the support bar of a monitoring devices is declined, the power transmission line on support bar and support bar is closed in housing, and then docks two and half top covers, thus closure shell;
5) using the heater in housing to carry out heating, the icing on selected power transmission line is melted is water, on power transmission line icing melt after water all received by the bullet under power transmission line;
6) early warning signal produced by controller is checked, then through predetermined time, repeat step 4) and 5), also the melting process of ice covering on transmission lines in second monitoring devices is namely completed, and then check the early warning signal that controller produces, as the melting process completing ice covering on transmission lines in all monitoring devices.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of monitoring devices of the present invention in the first state;
Accompanying drawing 2 is monitoring devices of the present invention structural representations in the second state;
Accompanying drawing 3 is structural representations of monitoring devices Casing top of the present invention;
Accompanying drawing 4 combines by 4 monitoring devices the schematic diagram forming monitoring device in the present invention;
Accompanying drawing 5 is vertical views of non-interconnected conducting ring in bullet in monitoring devices of the present invention.
In above-mentioned accompanying drawing, 1 represents housing, and 2 represent power transmission line, and 3 represent liftable support bar, and 4 represent bullet, and 5 represent unconnected conducting ring in bullet, and 6 represent heater, and 4.1-4.4 all represents monitoring devices.
Embodiment
First on the basis of 1-5 by reference to the accompanying drawings, ice covering on transmission lines monitoring device of the present invention is described below, as shown in Figure 4, ice covering on transmission lines monitoring device of the present invention is by 4 monitoring devices assemblies, 4 monitoring devices are exemplary, the monitoring devices of other quantity is all fine, in order to simple declaration, below by reference to the accompanying drawings 4 basis on be described for 4.Wherein shown in Fig. 1-2 is all in 4 monitoring devices one.
As shown in Figure 1-2, monitoring devices of the present invention comprises the rectangle housing 1 of hollow, and this housing 1 comprises bottom surface, the top cover being positioned at four sidewalls on bottom surface and being positioned on four sidewalls.Wherein a part is removed in bottom surface, at the lower surface of described bottom surface, the big opening end of bullet 4 is just in time connected to the edge of bottom surface removal part, at the upper surface of described bottom surface, be close to described edge in the both sides of removing part edge and be provided with liftable support bar 3, liftable support bar 3 is two, power transmission line is connected between two liftable support bars 3, the length of power transmission line 2 is a bit larger tham the spacing between two liftable support bars, be installed to after between two support bars to make power transmission line 2, height in the middle of power transmission line is not higher than the height of two end supports bar, preferably lower than the height 5mm of supporting bar top.Wherein Fig. 1 is that under support bar 3 is in the first state of rise with power transmission line 2, Fig. 2 is under support bar and power transmission line are in the state fallen, and under two states, the top of support bar 3 and the power transmission line 2 being in supporting bar top are all positioned on bullet 4.As shown in Figure 3, the top cover of housing 1 is made up of two symmetrical half top covers, on each half top cover, the position corresponding with support bar is provided with semi-circular indentation, the diameter of semi-circular indentation is a bit larger tham the diameter of support bar, two symmetrical half top covers can dock closure casing 1, respectively towards rear movement, thus the space of exposing enclosure interior can also be opened, with the outside facilitating two support bars power transmission line to be risen to housing 1.Like this, after two symmetrical half top cover docking, semi-circular indentation docking formation circle just by support bar of two and half top covers.Also have heater 6 in the inside of housing 1, the position of heater 6 can be arranged on sidewall, and certainly, other suitable positions are also fine, as long as can realize the function heated, quantity can be one or more.Meanwhile, the shape of top cover upper notch can be other shapes, as long as corresponding with the shape of support bar.Bullet itself is non-conductive, and in bullet, have the protruding conducting ring of multiple unconnected inner surface relative to bullet, multiple conducting ring is even or non-uniform Distribution from the bottom up, and protruding conducting ring is higher than bullet more than inner surface 5mm.And the salt equal solvent be also provided with in bullet for strengthening water conductivity.Wherein the shape of bullet can change, and can be such as cylindrical shape etc., shape have limited.Shape about conducting ring can refer to shown in Fig. 5, and Fig. 5 is the vertical view of conducting ring in bullet.Wherein conducting ring quantitative example show 4, certainly, quantity also can other, such as 3,5, preferably more than 2, wherein the quantity of conducting ring should be consistent with the quantity of monitoring devices.Conducting ring can be becket, such as copper ring or aluminium ring, and conducting ring is not a complete becket, has breach, such as, eliminate 1/4th of whole becket, forms a unconnected conducting ring thus.Such as form transmission line icing thickness monitoring device by four monitoring devices, so in bullet, the quantity of conducting ring also should be 4.In bullet, each non-interconnected conducting ring is all connected with controller, namely enter in bullet when the icing on power transmission line melts after for water, salt after entering bullet in instant solution bullet thus make melt frozen water there is conductivity, after the height of ponding is more than first unconnected conducting ring, namely the early warning signal that generation one is corresponding with the first non-interconnected conducting ring depth of water in controller, like this, power transmission line icing in various degree can produce the different thawing water yields, thus the non-interconnected conducting ring of differing heights in bullet can be flooded, thus produce different early warning signals, by melting the icing on power transmission line in the different moment, can judge what kind of situation the ice covering thickness of power transmission line reaches, also namely by arranging multiple monitoring devices, and multiple monitoring devices is heated progressively, the monitored over time of transmission line icing thickness can be realized.
Describe this device below in detail for measuring the method for transmission line icing thickness.The method comprises the following steps:
1) form monitoring device by multiple monitoring devices, choose the power transmission line of material identical with tested power transmission line and size, length is a bit larger tham the spacing between inner two support bars of housing 1;
2) top cover of the housing 1 of multiple monitoring devices is opened, also namely two and half top covers retreat two support bars exposing housing 1 inside respectively, then support bar is risen, until support bar is raised to the outside of housing, and the height of supporting bar top distance housing 1 top cover is greater than more than 10cm, then power transmission line is arranged on two support bars, more closed top cover; Or in advance power transmission line is arranged on two support bars, when needs are measured, directly support bar is risen, thus it is outer and make the height of power transmission line distance housing 1 top cover be greater than more than 10cm power transmission line to be risen from housing;
3) the whole measurement be made up of multiple monitoring devices be placed in the outdoor position contour with tested power transmission line and keep the regular hour, making selected power transmission line produces the icing structure identical with tested power transmission line;
4) according to the predetermined moment, the support bar of a monitoring devices is declined, the power transmission line on support bar and support bar is closed in housing 1, and then docks two and half top covers, thus closure shell 1;
5) using the heater in housing 1 to carry out heating, the icing on selected power transmission line is melted is water, on power transmission line icing melt after water all received by the bullet under power transmission line;
6) early warning signal produced by controller is checked, then through predetermined time, repeat step 4) and 5), also the melting process of ice covering on transmission lines in second monitoring devices is namely completed, and then check the early warning signal that controller produces, as the melting process completing ice covering on transmission lines in all monitoring devices.
Under regard to measuring principle of the present invention and be described, when predicting power transmission line and freezing possibly, under in advance selected power transmission line being placed in the freezing environment identical with tested power transmission line, thus produce the icing thickness identical with true tested power transmission line, when transmission line icing thickness measured by needs, use device of the present invention to carry out the icing heated on power transmission line and be converted into water, and received by bullet.In heating process, because top cover is closed again, the loss that the evaporation decreasing steam causes, simultaneously, because the height in the middle of power transmission line is not higher than the height of support bar, so ice covering on transmission lines melt after water can all enter in bullet, and support bar originally icing with it melt the water big city that formed along support bar to dirty, can not enter into that bullet is interior to have an impact to measurement result.Meanwhile, in melting process, because top cover is closed again, can prevent the steam of outside from entering into enclosure interior to affect measurement result like this.Meanwhile, support bar is highly higher than more than top cover 10cm after rising is the impact of freezing for power transmission line to reduce top cover.Because non-interconnected conducting ring is higher than bullet inner surface, so only just can early warning signal be produced when ponding floods, and the corresponding ice covering thickness of each early warning signal, these early warning signals can carry out reference for staff.Wherein make ponding have conductivity adding of salt, thus early warning signal can be produced when ponding floods non-interconnected conducting ring.Meanwhile, the width of preferred non-interconnected conducting ring breach is not less than 1/4th of whole conducting ring girth, may non-interconnected conducting ring be made to produce electric connection due to the process of current if breach is too small thus produce error signal.
Housing 1 wherein can be other shape, such as cylindrical shape.
Claims (7)
1. an ice covering on transmission lines monitoring device, it is characterized in that: ice covering on transmission lines monitoring device is by multiple monitoring devices assembly, each monitoring devices comprises hollow housing, this housing comprises bottom surface, the top cover being positioned at the sidewall on bottom surface and being positioned on sidewall, wherein a part is removed in bottom surface, and at the lower surface of described bottom surface, the big opening end of bullet is just in time connected to the edge of bottom surface removal part, at the upper surface of described bottom surface, be close to described edge in the both sides of removing part edge and be provided with liftable support bar, liftable support bar is two, power transmission line is connected between two liftable support bars, the length of power transmission line is a bit larger tham the spacing between two liftable support bars, to make power transmission line be installed to after between two support bars, the height in the middle of power transmission line is not higher than the height of two end supports bar, the top cover of housing is made up of two symmetrical half top covers, on each half top cover, the position corresponding with support bar is provided with semi-circular indentation, the diameter of semi-circular indentation is a bit larger tham the diameter of support bar, and two symmetrical half top covers can dock closure casing and open the space of exposing enclosure interior, also there is heater in the inside of housing, bullet itself is non-conductive, there is the protruding conducting ring of multiple unconnected inner surface relative to bullet in bullet, the solvent for strengthening water conductivity is also provided with in bullet, conducting ring has breach, form a unconnected conducting ring thus, in bullet, each non-interconnected conducting ring is all connected with controller, namely enter in bullet when the icing on power transmission line melts after for water, solvent after entering bullet in instant solution bullet thus make melt frozen water there is conductivity, after the height of ponding is more than a unconnected conducting ring, namely the early warning signal that generation one is corresponding with this non-interconnected conducting ring depth of water in controller, like this, power transmission line icing in various degree can produce the different thawing water yields, thus the non-interconnected conducting ring of differing heights in bullet can be flooded, thus produce different early warning signals, by melting the icing on power transmission line in the different moment, can judge what kind of situation the ice covering thickness of power transmission line reaches, also namely by arranging multiple monitoring devices, and multiple monitoring devices is heated progressively, the monitored over time of transmission line icing thickness can be realized.
2. measurement mechanism according to claim 1, is characterized in that: the shape of described housing is cuboid or cylinder.
3. measurement mechanism according to claim 1, is characterized in that: described heater is arranged on described sidewall.
4. measurement mechanism according to claim 1, is characterized in that: after described support bar rises, the height on top is higher than described top cover at least 10cm.
5. measurement mechanism according to claim 1, is characterized in that: described power transmission line is installed to after between support bar, and the height in the middle of power transmission line is lower than supporting bar top 5mm.
6. measurement mechanism according to claim 1, is characterized in that: the water after the icing on selected power transmission line melts all enters bullet, and support bar can not enter in described conical hopper after icing with it melts.
7. utilize arbitrary device in claim 1-6 to carry out a method for transmission line icing thickness measurement, it is characterized in that comprising the following steps:
1) form monitoring device by multiple monitoring devices, choose the power transmission line of material identical with tested power transmission line and size, length is a bit larger tham the spacing between enclosure interior two support bar;
2) top cover of the housing of multiple monitoring devices is opened, also namely two and half top covers retreat two support bars exposing enclosure interior respectively, then support bar is risen, until the outside to housing of support bar, and the height of supporting bar top distance Casing top is greater than more than 10cm, then power transmission line is arranged on two support bars, more closed top cover; Or in advance power transmission line is arranged on two support bars, when needs are measured, directly support bar is risen, thus it is outer and make the height of power transmission line distance Casing top be greater than more than 10cm power transmission line to be risen from housing;
3) the whole measurement be made up of multiple monitoring devices be placed in the outdoor position contour with tested power transmission line and keep the regular hour, making selected power transmission line produces the icing structure identical with tested power transmission line;
4) according to the predetermined moment, the support bar of a monitoring devices is declined, the power transmission line on support bar and support bar is closed in housing, and then docks two and half top covers, thus closure shell;
5) using the heater in housing to carry out heating, the icing on selected power transmission line is melted is water, on power transmission line icing melt after water all received by the bullet under power transmission line;
6) early warning signal produced by controller is checked, then through predetermined time, repeat step 4) and 5), also the melting process of ice covering on transmission lines in second monitoring devices is namely completed, and then check the early warning signal that controller produces, as the melting process completing ice covering on transmission lines in all monitoring devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779461.8A CN105305353B (en) | 2015-11-13 | 2015-11-13 | Ice covering on transmission lines monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779461.8A CN105305353B (en) | 2015-11-13 | 2015-11-13 | Ice covering on transmission lines monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN105305353A true CN105305353A (en) | 2016-02-03 |
| CN105305353B CN105305353B (en) | 2017-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510779461.8A Expired - Fee Related CN105305353B (en) | 2015-11-13 | 2015-11-13 | Ice covering on transmission lines monitoring device |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616978A (en) * | 2018-11-08 | 2019-04-12 | 南安市尚赢机械科技有限公司 | A kind of high-voltage wire tower device for preventing ice and snow that segmentation is melted |
| CN111472945A (en) * | 2020-03-23 | 2020-07-31 | 国家电投集团广西兴安风电有限公司 | Wind-powered electricity generation field icing monitoring and early warning device based on electromagnetic resonance principle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989546A (en) * | 1995-09-28 | 1997-04-04 | Mitsubishi Materials Corp | Ice thickness measuring device |
| CN104578061A (en) * | 2015-01-26 | 2015-04-29 | 国家电网公司 | Method for pre-estimating overhead power transmission line wire designed ice thickness |
| CN104713488A (en) * | 2015-03-26 | 2015-06-17 | 天津大学 | Optical ice thickness observation barrel |
| CN205195209U (en) * | 2015-11-13 | 2016-04-27 | 华北电力大学（保定） | Power transmission line icing monitoring device |
-
2015
- 2015-11-13 CN CN201510779461.8A patent/CN105305353B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989546A (en) * | 1995-09-28 | 1997-04-04 | Mitsubishi Materials Corp | Ice thickness measuring device |
| CN104578061A (en) * | 2015-01-26 | 2015-04-29 | 国家电网公司 | Method for pre-estimating overhead power transmission line wire designed ice thickness |
| CN104713488A (en) * | 2015-03-26 | 2015-06-17 | 天津大学 | Optical ice thickness observation barrel |
| CN205195209U (en) * | 2015-11-13 | 2016-04-27 | 华北电力大学（保定） | Power transmission line icing monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616978A (en) * | 2018-11-08 | 2019-04-12 | 南安市尚赢机械科技有限公司 | A kind of high-voltage wire tower device for preventing ice and snow that segmentation is melted |
| CN111472945A (en) * | 2020-03-23 | 2020-07-31 | 国家电投集团广西兴安风电有限公司 | Wind-powered electricity generation field icing monitoring and early warning device based on electromagnetic resonance principle |
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| Publication number | Publication date |
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| CN105305353B (en) | 2017-10-03 |
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Granted publication date: 20171003 Termination date: 20201113 |