CN114583647B - Device and method for suppressing galloping of power transmission line with windward cross section automatically changed - Google Patents
Device and method for suppressing galloping of power transmission line with windward cross section automatically changed Download PDFInfo
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- CN114583647B CN114583647B CN202111681288.XA CN202111681288A CN114583647B CN 114583647 B CN114583647 B CN 114583647B CN 202111681288 A CN202111681288 A CN 202111681288A CN 114583647 B CN114583647 B CN 114583647B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 60
- 239000004020 conductor Substances 0.000 claims description 23
- 230000001133 acceleration Effects 0.000 claims description 18
- 230000000452 restraining effect Effects 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 230000001629 suppression Effects 0.000 abstract description 7
- 230000005764 inhibitory process Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000016507 interphase Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention belongs to the technical field of anti-galloping of a power transmission line, and particularly relates to a power transmission line galloping suppression device and method with an automatically-changed windward section, wherein the device comprises an upper reel mechanism, a lower reel mechanism, a control system for controlling the operation of the upper reel mechanism and/or the lower reel mechanism and a power supply part for providing electric energy; the upper scroll mechanism and the lower scroll mechanism are connected through a roller cord connecting shaft, a roller shutter is arranged on the roller cord, and the roller cord is driven to move by controlling the upper scroll mechanism and/or the lower scroll mechanism to move through a control system, so that the covering area of the roller shutter is adjusted. The device provides an accounting method and an implementation form of the additional item of the wire resistance coefficient; and the relation between the additional area and the wind speed grade is given, so that the effective inhibition of the galloping and the galloping amplitude under different wind speeds is realized.
Description
Technical Field
The invention belongs to the technical field of anti-galloping of power transmission lines, and particularly relates to a power transmission line galloping restraining device and method with an automatically-changed windward cross section.
Background
The galloping of the power transmission line can only occur under the condition of ice coating of the power transmission line under the condition of specific wind direction and wind speed. Line galloping can cause interphase flashover, damage to a ground wire, hardware fittings and insulators, and when serious, the line trips, power failure, line breakage, tower inversion and the like can be caused, so that the safe and stable operation of a power grid is seriously threatened, and great economic loss is caused.
At present, most of power transmission lines in operation and construction adopt multi-split conductor structures such as 6 split conductors and 8 split conductors, the grid structure is complex, the average height of the towers is high, and a large number of same-tower double-loop towers are adopted. The distribution characteristics of the energy sources in China determine that the grid structure of the main transmission line is east-west, the line distance is long, the climate and the geographic conditions of a line corridor are complex, and the included angle between the main part of the line and the dominant wind direction in winter is large, which are main factors for causing galloping.
The transmission line with the complex structure is more prone to galloping damage due to the structural difference of common wires, and the reason is mainly as follows: 1. compared with the conventional line, the overhead line with the complex structure is mostly split conductors, and the sectional area of the conductors is also larger, so that the line galloping is easier to cause; 2. compared with a single-loop tower, the double-loop exclamation tower has the advantages that the drum-shaped and fan-shaped tower with longer cross arms is commonly adopted, so that the load and bending moment born by the double-loop tower are relatively large, and galloping disasters are more likely to occur; 3. compared with a single-loop tower, the double-loop tension tower has the advantages that as the double-loop tension tower has more cross arm bolts, the possibility of loosening and damaging is higher, and therefore, the double-loop wires are more easily damaged by the action of a galloping load.
The current device for preventing and controlling the galloping of the power transmission line mainly comprises an inter-phase spacer, a double-pendulum galloping preventer, a wire clamp rotary spacer, a resonance damping control device and the like. The anti-galloping principle of the phase-to-phase spacer is to limit the amplitude of the line galloping by changing the structural characteristics of the line. The anti-galloping principle of the double-pendulum anti-galloping device is that the line galloping control is realized by changing the stable condition of the wire structure damping matrix tripping line. The anti-galloping principle of the wire clamp rotary spacer is to restrain the galloping amplitude by changing the ice-type of the ice-covered sub-wire and the corresponding aerodynamic parameters. The resonance damping control mode mainly utilizes a spring damping device to realize the control of the line galloping amplitude through tuning control and damping energy consumption. The measures mainly focus on prevention and control, and certain defects exist in preventing and controlling the galloping of the power transmission line, and the line galloping is easy to occur in meteorological areas with frequent icing and large wind, so that the prevention and control effect cannot be ensured in the galloping easy-occurrence areas, and other measures for resisting the galloping are also needed.
Disclosure of Invention
The invention aims to provide a device and a method for suppressing the galloping of a power transmission line, which automatically change a windward section, aiming at the problems in the prior art, wherein the device provides an accounting method and an implementation form of an additional term of a wire resistance coefficient; and the relation between the additional area and the wind speed grade is given, so that the effective inhibition of the galloping and the galloping amplitude under different wind speeds is realized.
The technical scheme of the invention is as follows:
a power transmission line galloping suppression device with an automatically changeable windward section comprises an upper reel mechanism, a lower reel mechanism, a control system for controlling the operation of the upper reel mechanism and/or the lower reel mechanism and a power supply part for providing electric energy; the upper reel mechanism and the lower reel mechanism are connected through a roller shutter spool, a roller shutter is arranged on the roller shutter wire, and the roller shutter wire is driven to move by controlling the upper reel mechanism and/or the lower reel mechanism to move through a control system, so that the covering area of the roller shutter is adjusted.
Specifically, the upper scroll mechanism and the lower scroll mechanism are the same in structure and comprise a roller shutter pipe for rolling a roller shutter, two end parts of the roller shutter pipe are provided with mandrels, any one mandrel is connected with a power motor, the other mandrel is arranged in a support, the other end of the power motor is connected with a coil spring, and the coil spring is arranged in the support on the side.
Specifically, the coil spring is placed in the spring box and is connected with the power motor.
Specifically, two rolling cords are respectively connected with the two mandrels.
Specifically, the roller shutter is square and arranged between two roller cords, and the edge of the roller shutter is fixedly connected with the roller cords.
Specifically, the control system comprises a singlechip, a force sensor and an acceleration sensor, wherein the force sensor and the acceleration sensor are connected with the singlechip, the singlechip is electrically connected with the power motor, the singlechip is arranged on the support, and the force sensor and the acceleration sensor are arranged in any support.
Specifically, the power supply piece is one or two of a storage battery, an induction battery and a solar battery, and is arranged in any support or outside the support or in a spring box or outside the spring box.
Specifically, the method for restraining the galloping by using the power transmission line galloping restraining device with the automatically changed windward section comprises the following steps:
s1, selecting a power transmission line needing to be restrained from waving, and mounting a power transmission line waving restraining device with an automatically changed windward section on a wire;
s2, when the galloping condition is reached, the control system triggers, under different wind power levels, the opening degree of the roller shutter is different, the control system senses wind speed, point acceleration and displacement through the force sensor and the acceleration sensor, determines triggering action, the vibration frequency of a transmission line wire is 0.1-3 Hz, the amplitude is larger than 20 phi, and determines the opening degree of the roller shutter through pneumatic resistance calculation, so that the relation between wind speed and the pulling displacement of the roller shutter is formed:
wherein->Wherein n is the split number of split conductors, L is the line span, C D The pneumatic resistance coefficient delta of the sub-conductor is the thickness of the design ice coating, U Ice coating To design wind speed, C '' D The pneumatic resistance coefficient is corresponding to cylindrical equivalent icing;
s3, sending a rotation instruction to the upper scroll mechanism according to the opening degree of the roller shutter determined in the previous step, and simultaneously, synchronously rotating the lower scroll mechanism and opening the roller shutter;
s4, when the galloping condition disappears, the force sensor and the acceleration sensor can trigger the control system to send a motion instruction in the opposite direction to the step S3 to the upper scroll mechanism, and the lower scroll mechanism rotates synchronously to send a rotation instruction, and the roller shutter is retracted, so that galloping is stopped.
Specifically, step S2 further includes design of aerodynamic resistance enhancement after the transmission line wire is iced, because after the aerodynamic resistance enhancement, the horizontal load is increased, and there is a problem that the safety bearing capacity is exceeded, and the wind resistance under the design condition of line icing is thatWherein n is the split number of split conductors, L is the line span, C D The pneumatic resistance coefficient delta of the sub-conductor is the thickness of the design ice coating, U Ice coating To design wind speed, C '' D Is the pneumatic resistance coefficient corresponding to cylindrical equivalent ice coating；
When the form of increasing the windward section is adopted, the equivalent relation based on equal aerodynamic resistance in the gear distance can be known:
and then can obtain:
corresponding C D is attached to The requirements are as follows:
the windward increase should satisfy the following relationship:
drop length:
relation between roller shutter pull-down length and wind speed
Wherein the method comprises the steps of
At present, many anti-galloping devices are not perfect in design and have unsatisfactory anti-galloping effects. The structural design, parameter selection and line arrangement of the anti-galloping device are to be studied. The research of systematic research analysis of anti-galloping technology realizes the final purpose of research analysis related to galloping of the line anti-galloping treatment. At present, various anti-galloping devices are developed according to different anti-galloping mechanisms, and the single existing anti-galloping device is different in characteristics, lacks systematicness and universality and cannot fundamentally achieve the function of inhibiting galloping.
The beneficial effects of the invention are as follows: through setting up spool mechanism, lower spool mechanism to install it on transmission line wire, control spool mechanism and/or lower spool mechanism motion drive roller shutter line 10 motion through control system, thereby adjust the cladding area size of roller shutter, change windward area or atress direction mainly through control roller shutter's opening and shutting (or rotation), rely on power motor's rotation, and then drive the rotation of dabber, realize roller shutter's opening and closing, when the system reaches the condition of waving, control system triggers, under the different wind-force grades, the opening degree of roller shutter is different, reach the purpose of increase windward area. When the galloping condition disappears, the sensor can trigger the lower scroll to rotate to retract the roller shutter.
Drawings
Fig. 1 is a schematic structural view of a reel mechanism provided by the present invention.
FIG. 2 is a schematic illustration of the connection of a spindle, a power motor;
fig. 3 is a schematic diagram showing the installation of the galloping suppression device and the transmission line conductors according to embodiment 1;
fig. 4 is a schematic diagram showing the installation of the galloping suppression device and the transmission line conductors according to embodiment 2;
fig. 5 is a flowchart of a roller shutter opening and closing control system.
1 support, 2 coil springs, 3 spring boxes, 4 core shafts, 5 power motors, 6 roller shutter tubes, 7 upper wires, 8 lower wires, 9 roller shutters and 10 roller shutter wires.
Detailed Description
The following describes the technical scheme of the present invention in detail with reference to the drawings and the specific embodiments.
The invention provides a power transmission line galloping suppression device with an automatically-changed windward section, which comprises an upper reel mechanism, a lower reel mechanism, a control system for controlling the operation of the upper reel mechanism and/or the lower reel mechanism and a power supply part for providing electric energy; the upper reel mechanism and the lower reel mechanism are connected through a roller shutter spool, the roller shutter 9 is arranged on the roller shutter wire, and the roller shutter wire 10 is driven to move by controlling the movement of the upper reel mechanism and/or the lower reel mechanism through a control system, so that the covering area of the roller shutter 9 is adjusted.
The upper scroll mechanism and the lower scroll mechanism in the invention have the same structure as shown in fig. 1, and each of the upper scroll mechanism and the lower scroll mechanism comprises a roller shutter pipe 6 for rolling up a roller shutter 9, wherein the roller shutter 9 is square and arranged between two roller cords 10, and the edges of the roller shutter 9 are fixedly connected with the roller cords 10. Two end parts of the roller shutter tube 6 are respectively provided with a mandrel 4, any mandrel 4 is connected with a power motor 5, as shown in fig. 2, the other mandrel 4 is arranged in the support 1, and two roller shutter wires 10 are respectively connected with the two mandrels 4. The other end of the power motor 5 is connected with a coil spring 2, the coil spring 2 is placed in the support 1 at the side, and the coil spring 2 is placed in the spring box 3 and connected with the power motor 5.
The control system comprises a singlechip, a force sensor and an acceleration sensor which are connected with the singlechip, wherein the singlechip uses STM32F103 series singlechips, the process is mature, the price is low, and the control system belongs to an enhanced series microcontroller and is widely applied to motor driving and frequency conversion systems and the like. The singlechip is electrically connected with the power motor 5, the singlechip is arranged on the support 1, and the force sensor and the acceleration sensor are arranged in any support 1. The power supply part is one or two of a storage battery, an induction battery and a solar battery, and is arranged in or outside any support 1 or in or outside a spring box 3.
The invention uses a singlechip control system to determine the triggering action by sensing wind speed, point acceleration and displacement and pass through gasCalculating dynamic resistance, determining the opening degree of the roller shutter, and forming the relation between wind speed and roller shutter pulling displacement:
in the actual operation process, the opening and closing modes and directions of the roller shutter are not limited to up and down, left and right, and the like, and the relation can be determined on the windward side.
Example 1
The embodiment uses the device provided above to perform galloping suppression on a double split conductor with four splits, six splits and eight splits in the form of upper and lower conductors, as shown in fig. 3.
The method for restraining the galloping by using the transmission line galloping restraining device with the automatically changed windward cross section comprises the following steps of:
s1, selecting a power transmission line needing to restrain galloping, mounting a power transmission line galloping restraining device with an automatically changed windward section on a wire, sleeving an upper reel mechanism of the device on an upper wire 7 through a roller shutter cylinder 6, sleeving a lower reel mechanism on a lower wire 8, wherein the roller shutter cylinder 6 is provided with an opening on a cylinder body or is a completely closed cylinder shape, and mounting the roller shutter cylinder 6 in the cylinder shape in a mode of clamping a support 1 by using a clamp or bolting;
s2, wind resistance after the roller shutter is installed:
windage resistance when rolling up curtain different positions:
after the pneumatic resistance of the line is enhanced, the horizontal load is increased, the problem of exceeding the safe bearing capacity exists, and the wind resistance under the design condition of icing of the line is thatWherein n is the split number of split conductors, L is the line span, C D Aerodynamic drag coefficient of sub-conductor. Delta is the thickness of the design ice coating, U Ice coating To design wind speed, C '' D Is a pneumatic resistance coefficient corresponding to cylindrical equivalent ice coating.
When the form of increasing windward cross section is adopted
Based on the equivalent relation of equal aerodynamic resistance in the gear, the following can be known:
and then can obtain:
corresponding C D is attached to The requirements are as follows:
the windward increase should satisfy the following relationship:
drop length:
relation between roller shutter pull-down length and wind speed
Wherein the method comprises the steps of
When the galloping condition is reached, the control system triggers, the opening degree of the roller shutter is different under different wind power levels, the control system senses wind speed, point acceleration and displacement through the force sensor and the acceleration sensor, the triggering action is determined, the vibration frequency of a transmission line wire is 0.1-3 Hz, the amplitude is greater than 20 phi, and the opening degree of the roller shutter 9 is determined through aerodynamic resistance calculation;
s3, sending a rotation instruction to the upper scroll mechanism according to the opening degree of the roller shutter 9 determined in the previous step, and simultaneously, synchronously rotating the lower scroll mechanism and opening the roller shutter 9;
s4, when the galloping condition disappears, the force sensor and the acceleration sensor can trigger the control system to send a movement instruction in the opposite direction to the step S3 to the upper scroll mechanism, and the lower scroll mechanism rotates synchronously to send a rotation instruction, so that the roller shutter 9 is retracted, and galloping is stopped.
The galloping suppression device provided by the invention can improve the effect of preventing and controlling galloping to a certain extent.
Example 2
Unlike embodiment 1, the device provided by the invention is used on the double split conductor on the same plane, and a vertical plane can be constructed between two sub-spacers, and the device is installed in the same manner as described in embodiment 1, as shown in fig. 4.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (8)
1. A method for restraining galloping of a power transmission line with an automatically-changed windward cross section is characterized in that a power transmission line galloping restraining device with an automatically-changed windward cross section is used, and the restraining device comprises an upper reel mechanism, a lower reel mechanism, a control system for controlling the operation of the upper reel mechanism and/or the lower reel mechanism and a power supply piece for providing electric energy; the upper scroll mechanism and the lower scroll mechanism are connected through a roller cord (10) shaft, the roller cord is provided with a roller shutter (9), the roller cord (10) is driven to move by controlling the upper scroll mechanism and/or the lower scroll mechanism to move through a control system, so that the covering area of the roller shutter (9) is adjusted,
the method for inhibiting the galloping comprises the following steps:
s1, selecting a power transmission line needing to be restrained from waving, and mounting a power transmission line waving restraining device with an automatically changed windward section on a wire;
s2, when the galloping condition is reached, the control system triggers, under different wind power levels, the opening degree of the roller shutter is different, the control system senses wind speed, point acceleration and displacement through the force sensor and the acceleration sensor, determines triggering action, the vibration frequency of a transmission line wire is 0.1-3 Hz, the amplitude is larger than 20 phi, and determines the opening degree of the roller shutter (9) through pneumatic resistance calculation, so that the relation between wind speed and the pulling displacement of the roller shutter (9) is formed:
wherein the method comprises the steps ofn is the split number of split conductors, U Ice coating For designing wind speed, D is the wire diameter of the sub-wire, L is the line span, delta is the thickness of the design icing, C D Is the aerodynamic drag coefficient of the sub-conductor, C '' D The pneumatic resistance coefficient corresponding to the cylindrical equivalent icing wire; s is the splitting distance of split conductors, C' D Is a cross-section pair of windward areasA corresponding aerodynamic drag coefficient;
s3, sending a rotation instruction to the upper scroll mechanism according to the opening degree of the roller shutter (9) determined in the previous step, and simultaneously, synchronously rotating the lower scroll mechanism and opening the roller shutter (9);
s4, when the galloping condition disappears, the force sensor and the acceleration sensor can trigger the control system to send a motion instruction in the opposite direction to the step S3 to the upper scroll mechanism, and the lower scroll mechanism rotates synchronously to send a rotation instruction, and the roller shutter (9) is retracted, so that galloping is stopped.
2. The method for suppressing galloping of power transmission line with automatically changed windward cross section according to claim 1, wherein step S2 further comprises design of aerodynamic resistance enhancement after icing of power transmission line wire, wherein the wind resistance under the condition of line icing design is thatWherein n is the split number of split conductors, ρ is the air density, L is the line span, δ is the design icing thickness, U Ice coating To design wind speed, C '' D The pneumatic resistance coefficient corresponding to the cylindrical equivalent icing wire;
when the form of increasing the windward section is adopted, the equivalent relation based on equal aerodynamic resistance in the gear distance can be known:
and then can obtain:
corresponding C D is attached to The requirements are as follows:
the windward increase should satisfy the following relationship:
drop length:
relation between roller shutter pull-down length and wind speed
Wherein the method comprises the steps of
n is the split number of split conductors, U Ice coating For designing wind speed, D is the wire diameter of the sub-wire, L is the line span, delta is the thickness of the design icing, C D Is the aerodynamic drag coefficient of the sub-conductor, C '' D The pneumatic resistance coefficient corresponding to the cylindrical equivalent icing wire; s is the splitting distance of split conductors, C' D The aerodynamic drag coefficient is corresponding to the cross section form of the windward region.
3. The method for restraining galloping of the power transmission line with the automatically changed windward cross section according to claim 1, wherein the upper scroll mechanism and the lower scroll mechanism are the same in structure and comprise roller shutter pipes (6) with roller shutters (9), two end parts of each roller shutter pipe (6) are provided with mandrels (4), any one mandrel (4) is connected with a power motor (5), the other mandrel (4) is arranged in a support (1), the other end of the power motor (5) is connected with a coil spring (2), and the coil spring (2) is placed in the support (1) at the side.
4. A method for suppressing a galloping of a power transmission line with an automatically changing windward cross section according to claim 3, characterized in that the coil spring (2) is placed in the spring box (3) in connection with the power motor (5).
5. Method for suppressing galloping of an electric power transmission line with an automatic variation of windward cross section according to claim 1, characterized in that the rolling cords (10) have two cores (4) connected respectively.
6. Method for suppressing galloping of a power transmission line with automatically varying windward cross section according to claim 1, characterized in that the roller blind (9) is square arranged between two roller blind wires (10) and the edges thereof are fixedly connected with the roller blind wires (10).
7. The method for restraining the galloping of the power transmission line with the automatically changed windward cross section according to claim 2, wherein the control system comprises a single chip microcomputer, a force sensor and an acceleration sensor, wherein the force sensor and the acceleration sensor are connected with the single chip microcomputer, the single chip microcomputer is electrically connected with the power motor (5), the single chip microcomputer is arranged on the support (1), and the force sensor and the acceleration sensor are arranged in any support (1).
8. The method for restraining the galloping of the power transmission line with the automatically changed windward cross section according to claim 2, wherein the power supply piece is one or two of a storage battery, an induction battery and a solar battery, and the power supply piece is arranged in or outside any support (1) or in or outside a spring box (3).
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452328A (en) * | 2010-11-01 | 2012-05-16 | 北京盈电电气有限公司 | Pre-hinged armored catenarian cable cleat |
| CN103208768A (en) * | 2012-03-28 | 2013-07-17 | 国家电网公司 | Method for suppressing waving of extra-high voltage bundled conductor |
| CN203645280U (en) * | 2013-11-29 | 2014-06-11 | 合肥固力发电气有限公司 | Preformed suspension clamp |
| KR101451344B1 (en) * | 2013-09-06 | 2014-10-15 | 한전케이피에스 주식회사 | fixing device for power line conductor connecting |
| CN205283048U (en) * | 2015-11-26 | 2016-06-01 | 江苏天南电力器材有限公司 | Pretwisted suspension wire clip |
| CN206490406U (en) * | 2017-03-06 | 2017-09-12 | 朋友电力科技有限公司 | Pre-hinged catenarian cable cleat |
| CN107609232A (en) * | 2017-08-25 | 2018-01-19 | 浙江大学 | A kind of finite element method waved using the accurate transmission line simulation of ANSYS softwares |
| CN109959415A (en) * | 2019-03-13 | 2019-07-02 | 国家电网有限公司 | The test method of performance is waved in a kind of resistance to wind of OPGW optical cable |
| KR102025259B1 (en) * | 2019-02-26 | 2019-09-26 | 제룡산업 주식회사 | An insert rubber of amour rod grip type suspension clamp |
| CN213585093U (en) * | 2020-10-29 | 2021-06-29 | 国网河南省电力公司周口供电公司 | Pre-twisted suspension clamp special for carbon fiber composite core wire |
-
2021
- 2021-12-31 CN CN202111681288.XA patent/CN114583647B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102452328A (en) * | 2010-11-01 | 2012-05-16 | 北京盈电电气有限公司 | Pre-hinged armored catenarian cable cleat |
| CN103208768A (en) * | 2012-03-28 | 2013-07-17 | 国家电网公司 | Method for suppressing waving of extra-high voltage bundled conductor |
| KR101451344B1 (en) * | 2013-09-06 | 2014-10-15 | 한전케이피에스 주식회사 | fixing device for power line conductor connecting |
| CN203645280U (en) * | 2013-11-29 | 2014-06-11 | 合肥固力发电气有限公司 | Preformed suspension clamp |
| CN205283048U (en) * | 2015-11-26 | 2016-06-01 | 江苏天南电力器材有限公司 | Pretwisted suspension wire clip |
| CN206490406U (en) * | 2017-03-06 | 2017-09-12 | 朋友电力科技有限公司 | Pre-hinged catenarian cable cleat |
| CN107609232A (en) * | 2017-08-25 | 2018-01-19 | 浙江大学 | A kind of finite element method waved using the accurate transmission line simulation of ANSYS softwares |
| KR102025259B1 (en) * | 2019-02-26 | 2019-09-26 | 제룡산업 주식회사 | An insert rubber of amour rod grip type suspension clamp |
| CN109959415A (en) * | 2019-03-13 | 2019-07-02 | 国家电网有限公司 | The test method of performance is waved in a kind of resistance to wind of OPGW optical cable |
| CN213585093U (en) * | 2020-10-29 | 2021-06-29 | 国网河南省电力公司周口供电公司 | Pre-twisted suspension clamp special for carbon fiber composite core wire |
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| CN114583647A (en) | 2022-06-03 |
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