CN201323424Y - Mistuning spacer rod device - Google Patents
Mistuning spacer rod device Download PDFInfo
- Publication number
- CN201323424Y CN201323424Y CNU200820233719XU CN200820233719U CN201323424Y CN 201323424 Y CN201323424 Y CN 201323424Y CN U200820233719X U CNU200820233719X U CN U200820233719XU CN 200820233719 U CN200820233719 U CN 200820233719U CN 201323424 Y CN201323424 Y CN 201323424Y
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- conductor spacer
- resonance conductor
- resonance
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- conductor
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Abstract
The utility model discloses a mistuning spacer rod device which is suitable for multi-divided conductors, for example the division number is 3, 4, 6 or 8. The mistuning spacer rod device at least comprises a group of mistuning spacer rod assemblies which are corresponding to a phase conductor; the group of the mistuning spacer rod assemblies comprise a plurality of independent mistuning spacer rods; the mistuning spacer rods are respectively connected with two adjacent sub-conductors; two adjacent mistuning spacer rods are respectively located in different division round planes; and the length of two adjacent subspans of each sub-conductor of the phase conductor is unequal. The mistuning spacer rod device leads the dynamic characteristics of each subspan of the multi-divided conductors to be different, namely the mechanical impedance among the subspans is in non-matching state, thereby limiting the formation of standing waves and the spreading of vibration waves between adjacent subspans, and effectively inhibiting the galloping.
Description
Technical field
The relevant a kind of conductor spacer device that is used for overhead transmission line of the utility model, the off resonance conductor spacer device of generation is waved in relevant especially a kind of effective inhibition.
Background technology
Multiple disaster accident can take place because of the effect of natural conditions in overhead transmission line in running, wave be exactly wherein endanger comparatively serious a kind of.The harm of waving generation is many-sided, and flashover, tripping operation take place the lighter, and weight person causes gold utensil and insulator to damage, and disconnected strand of lead, broken string, come off at the shaft tower bolt looseness, even falls tower, thereby causes great power grid accident.Multiple country is waved by China, from overhead transmission line accident statistical analysis data in recent years, the problem of waving has become one of current main factor that threatens China's line security operation, and development along with Chinese power grid construction, transmission line occurs that lead heavy in section, division number are many, compact conformation etc. is easy to bring out the characteristics and the trend of waving, and the situation of circuit anti-dance is more severe.
At present, the anti-dancing device of rigidity that China has a practical operating experiences has a variety of, and has also all obtained certain effect.But these traditional rigidity are prevented dancing device, for example three, four, six, to split several conductor spacers all be monolithic devices to eight equal parts, in a division disk, conductor spacer is whole coplane, the dynamic characteristic of each root lead is identical, like this, carry under the effect at wind and can produce the identical vibration of half-wave number, bundle conductor will cause that the subspan galloping of low frequency large amplitude or integral body waves.In addition, the anti-dancing device of traditional rigidity causes the wire clamp exit stress of conductor to concentrate easily, increases the moving bending strain of lead.
The utility model content
Technical problem to be solved in the utility model provides a kind of off resonance conductor spacer device, utilize the off resonance conductor spacer device of off resonance method reasonable Arrangement anti-dance, make that the dynamic characteristic of each time of multiple fission conductor span is different, be that mechanical impedance between each time span is in the state that do not match mutually, thereby the formation and the propagation of vibration wave between adjacent span of standing wave have been limited, to reach the purpose that suppresses to wave generation.
Another technical problem to be solved in the utility model provides a kind of off resonance conductor spacer device, and the defective of moving bending strain is concentrated and increased to the wire clamp exit stress of conductor that can avoid the anti-dancing device of conventional rigid to be caused.
The utility model provides a kind of off resonance conductor spacer device, this off resonance conductor spacer device comprises one group of off resonance conductor spacer assembly corresponding to a phase conductor at least, one group of off resonance conductor spacer assembly comprises independently off resonance conductor spacer of a plurality of phases, each off resonance conductor spacer connects adjacent in twos sub-conductor respectively, two adjacent off resonance conductor spacers are in different division disks respectively, and keep two times adjacent span length of every root lead of this phase conductor unequal.
According to such scheme, the utility model is significant with respect to the effect of prior art: for multiple fission conductor, therefore a major reason of waving is to be spaced apart the subspan oscillation that rod separates, and prevents that subspan oscillation from also being a kind of effective means of waving of preventing.Usually the bundle conductor time span that constitutes because of traditional monolithic devices conductor spacer equates, the dynamic characteristic of each root lead is identical, thereby make these sub-conductors under the effect of input wind energy, the identical vibration of half-wave number can take place separately, the utility model this problem of pin has just proposed the off resonance conductor spacer device that a kind of off resonance method is come the reasonable Arrangement anti-dance, make the same group of off resonance conductor spacer in the off resonance conductor spacer assembly not entirely in same division disk, thereby can make the dynamic characteristic of each time of multiple fission conductor span different, be that mechanical impedance between each time span is in the state that do not match mutually, by the mutual absorption of vibrational energy between each time span, prevented subspan oscillation like this; Simultaneously, sub-conductor is in wind exciting process, and the propagation between adjacent span of the formation of standing wave and vibration wave is restricted, thus the generation that inhibition is waved; On the other hand, when when full shelves are waved,, play the weakening effect equally owing to similarly absorb energy between the sub-conductor.Research and evidence by analysis: the utility model adopts suitable arrangement to make its formation that is unfavorable for subspan oscillation based on the off resonance conductor spacer device of off resonance method, can effectively suppress the generation of waving.
In the utility model, this off resonance conductor spacer device is applicable to that the lead split form is the circuit of tripartition and above division number.For example, the division number of lead is that the off resonance conductor spacer quantity that 3,4,6 or 8, one groups of off resonance conductor spacer assemblies comprise is 3,4,6 or 8.
One preferred embodiment in, this off resonance conductor spacer device comprises many group off resonance conductor spacer assemblies, each is organized off resonance conductor spacer assembly and arranges successively along this phase conductor axial direction.Like this, corresponding to off resonance conductor spacer assembly on the same group, utilize each off resonance conductor spacer to link to each other in twos between each root lead of homophase and stagger each other, adjacent the span that keeps on every root lead the off resonance conductor spacers by each many group off resonance conductor spacer assemblies to constitute simultaneously is not equidistant yet, each sub-conductor that is about in the transmission line is divided into several times span section interlaced with each other and mutually different, can play significant anti-dance effect.
One preferred embodiment in, this off resonance conductor spacer device comprises many group off resonance conductor spacer assemblies and a plurality of integrated spaced rods, every group of off resonance conductor spacer assembly and each integrated spaced rod are arranged at interval along the axial direction of described lead.Can utilize this scheme to transform the anti-dancing device of existing transmission line, foolproof reforming mode is to install one group of off resonance conductor spacer assembly that the utility model provides between existing integrated spaced in twos rod, as long as guarantee that two adjacent off resonance conductor spacers are in different division disks respectively in every group of off resonance conductor spacer assembly, and adjacent two times of every root lead of this phase conductor span length is unequal gets final product.This method can effectively suppress the generation of waving, and improvement cost is low.
One preferred embodiment in, per two the off resonance conductor spacers in every group of off resonance conductor spacer assembly all are in different division disks, i.e. the equal coplane not of per two off resonance conductor spacers in one group of off resonance conductor spacer.Distance between each off resonance conductor spacer of one group of off resonance conductor spacer assembly, and the inferior span size of each phase conductor, can specifically determine that each off resonance conductor spacer that is not limited to make every group of off resonance conductor spacer assembly is coplane not all according to concrete parameter, subspan oscillation situation, the condition of dancing and the icing shape of circuit.
One preferred embodiment in, all each time spans of whole sub-conductors of this phase conductor are unequal mutually.Like this, can make the dynamic characteristic of whole each time spans on whole sub-conductors different, mechanical impedance is in the state that do not match mutually, the anti-dance best results.In the utility model, non-conterminous the span that every root lead upper edge axis distributes can equate, do not influence the anti-dance effect.
One preferred embodiment in, described off resonance conductor spacer comprises that an off resonance is every excellent body be connected to two wire clamps at these off resonance conductor spacer body two ends.The wire clamp at described two ends is the rigidity wire clamp, perhaps is damping wire clamp or the like, and emphasis of the present utility model is to control time span by layout off resonance conductor spacer, does not therefore limit for the concrete conductor spacer that adopts.Most preferred off resonance conductor spacer is: in the middle of two wire clamps, one is common damping wire clamp, and another is the gyrodaming wire clamp.This structure, the defective of moving bending strain is concentrated and increased to the wire clamp exit stress of conductor that can not only avoid the anti-dancing device of conventional rigid to be caused, can also make the sub-conductor that is clamped in the wire clamp have rotational freedom, sub-conductor is reversed under the eccentric force of eccentric icing automatically and finally can't form eccentric icing, reduced the torsional rigidity of bundle conductor, make eccentric icing situation alleviate, further strengthen the effect of control transmission line galloping.
Description of drawings
Fig. 1 is the schematic diagram of the utility model execution mode 1.
Fig. 2 is the schematic diagram of the preferred off resonance conductor spacer of the utility model.
Fig. 3 is the schematic diagram of the utility model execution mode 2.
Fig. 4 is the schematic diagram of the utility model execution mode 2 another embodiment.
Embodiment
Referring to Fig. 1, a kind of off resonance conductor spacer device that the utility model provides, at least comprise corresponding to one group of off resonance conductor spacer assembly 1 on the phase conductor, one group of off resonance conductor spacer assembly 1 comprises independently off resonance conductor spacer 11,12,13,14 of a plurality of phases, and each off resonance conductor spacer 11,12,13,14 connects adjacent in twos sub-conductor 5,6,7,8 respectively.The utility model is applicable to that the lead split form is the circuit of tripartition and above division number.Division number as lead is 3,4,6 or 8, and the off resonance conductor spacer quantity that every group of off resonance conductor spacer assembly 1 comprises preferably also is 3,4,6 or 8.
In the present embodiment, off resonance conductor spacer device of the present utility model can comprise many groups, can arrange at interval on the lead axial direction with existing integrated spaced excellent 3, can be used for transforming the anti-dancing device of existing power transmission line.Be that quadrifid circuit is that example describes with the lead split form now, a phase conductor comprises four root leads 5,6,7,8, and every group of off resonance conductor spacer assembly 1 comprises 4 off resonance conductor spacers 11,12,13,14.Wherein off resonance conductor spacer 11 connects adjacent sub-conductor 5 and sub-conductor 6, off resonance conductor spacer 12 connects adjacent sub-conductor 5 and sub-conductor 7, off resonance conductor spacer 13 connects adjacent sub-conductor 7 and sub-conductor 8, off resonance conductor spacer 14 connects adjacent sub-conductor 6 and sub-conductor 8, by this group off resonance conductor spacer assembly 1 and be adjacent existing integrated spaced excellent 3 constitute inferior span, when arranging on the same group off resonance conductor spacer assembly 1, can make four off resonance conductor spacers 11,12,13,14 every adjacent two all not in same division disk, i.e. four off resonance conductor spacers 11,12,13,14 are in the different planes, on identical sub-conductor first group, second group of off resonance conductor spacer assembly 1, each off resonance conductor spacer 11 in 10,12,13,14 with distance and every group of off resonance conductor spacer assembly 1 of middle integrated spaced excellent 3, the distance of each off resonance conductor spacer in 10, can be according to the concrete parameter of transmission line, the subspan oscillation situation, the condition of dancing and icing shape are determined, thereby can make whole sub-conductors 5 of this phase conductor, 6,7, the inferior span 51 of 8 correspondences, 61,71,81 is unequal mutually or not exclusively equal, inferior span 52,62,72,82 is unequal mutually or not exclusively equal, inferior span 53,63,73,83 is unequal mutually or not exclusively equal, tired successively pushing away, every root lead 5 of while, 6,7, two times adjacent on 8 spans 51 are unequal with time span 52, inferior span 52 and time span 53 are unequal, inferior span 61 and time span 62 are unequal, inferior span 62 and time span 63 are unequal, inferior span 71 and time span 72 are unequal, inferior span 72 and time span 73 are unequal, and inferior span 81 and time span 82 are unequal, inferior span 82 and time span 83 are unequal.Separately inferior span on every root lead, for example separately inferior span 51 and 53 can equate on the sub-conductor 5, does not influence the anti-dance effect, but preferably unequal.The off resonance conductor spacer 11,12,13,14 that certainly also can make every group of off resonance conductor spacer assembly 1,10 in the utility model that is to say that four the off resonance conductor spacers 11,12,13,14 in one group of off resonance conductor spacer assembly 1 can have two off resonance conductor spacer coplanes not entirely in same division disk.According to such scheme, the utility model is based on the off resonance method, reasonable Arrangement off resonance conductor spacer, make each time of multiple fission conductor span 51,52,53,61,62,63,71,72,73,81,82,83 dynamic characteristic is different, be that mechanical impedance between each time span is in the state that do not match mutually, thereby, prevented subspan oscillation by the mutual absorption of vibrational energy between each time span; Simultaneously, sub-conductor is in wind exciting process, and the propagation between adjacent span of the formation of standing wave and vibration wave is restricted, thus the generation that inhibition is waved; On the other hand, when when full shelves are waved,, play the weakening effect equally owing to similarly absorb energy between the sub-conductor.
As shown in Figure 2, the off resonance conductor spacer 11,12,13,14 that every group of off resonance conductor spacer assembly 1,10 adopted in the utility model comprises off resonance conductor spacer body 4 respectively and is connected to two wire clamps 41,42 at these off resonance conductor spacer body 4 two ends.This off resonance conductor spacer body 4 is double plate structures, and the wire clamp 41,42 at two ends disposes damping rubber with the part that off resonance conductor spacer body 4 two ends link to each other.In the middle of the wire clamp 41,42 based on most preferred off resonance conductor spacer 11,12,13,14 two ends of off resonance method in the utility model, wire clamp 41 is common damping wire clamp, wire clamp 42 is the gyrodaming wire clamp, the common damping wire clamp 41 and the body rear of gyrodaming wire clamp 42 all are clipped between two damping rubbers, by bolt, plain washer, spring washer, nut, R pin and off resonance conductor spacer body 4 link together then.Off resonance conductor spacer 11,12,13,14 adopts double plate structure, has improved the centripetal force and the stability of structure of conductor spacer greatly, has the favorable mechanical performance.The defective of moving bending strain is concentrated and increased to the wire clamp exit stress of conductor that this conductor spacer can not only avoid the anti-dancing device of conventional rigid to be caused, can also make the sub-conductor that is clamped in the wire clamp have rotational freedom, sub-conductor is reversed under the eccentric force of eccentric icing automatically and finally can't form eccentric icing, reduced the torsional rigidity of bundle conductor, make eccentric icing situation alleviate, further strengthen the effect of control transmission line galloping.And construction install convenience, stable and reliable for performance, in light weight, be fit to apply.
Certainly, the utility model can adopt existing various conductor spacer.For example, adopt two end terminals 41,42 to be the conductor spacer of rigidity wire clamp, perhaps adopt two end terminals 41,42 to be conductor spacer of damping wire clamp or the like, do not limit.
Execution mode 2
As shown in Figure 3, another preferred embodiment in, this off resonance conductor spacer device also comprises many group off resonance conductor spacer assemblies 1,10,100,1000, as different from Example 1: this embodiment does not comprise existing integrated spaced excellent 3, but arranges that along this phase conductor axial direction institute constitutes by each group off resonance conductor spacer assembly 1,10,100,1000 successively.
When arranging, preferred, whole off resonance conductor spacers 11,12,13,14 per two the off resonance conductor spacers that still make every group of off resonance conductor spacer assembly 1,10,100,1000 are not in same division disk.Like this, corresponding to off resonance conductor spacer assembly 1 on the same group, 10,100,1000 each root lead 5,6,7,8 utilize each independently the off resonance conductor spacer link to each other in twos and stagger each other, whole sub-conductors 5 of this phase conductor, 6,7, the inferior span 51 of 8 correspondences, 61,71,81 is unequal mutually, inferior span 52,62,72,82 is unequal mutually, inferior span 53,63,73,83 mutual unequal getting final product, every root lead 5 of while, 6,7,8 adjacent two spans 51 and time span 52 are unequal, inferior span 52 and time span 53 are unequal, inferior span 61 and time span 62 are unequal, inferior span 62 and time span 63 are unequal, inferior span 71 and time span 72 are unequal, inferior span 72 and time span 73 are unequal, inferior span 81 and time span 82 are unequal, inferior span 82 and time span 83 are unequal, each sub-conductor that is about in the transmission line is divided into several times span section interlaced with each other and mutually different, thereby plays excellent anti-dance effect.For the distance between each the off resonance conductor spacer of respectively organizing off resonance conductor spacer assembly 1,10,100,1000 on the lead, and the distance between every root lead two adjacent groups off resonance conductor spacer assembly, can specifically determine that each the off resonance conductor spacer that is not limited to make every group of off resonance conductor spacer assembly is coplane not all according to concrete parameter, subspan oscillation situation, the condition of dancing and the icing shape of circuit.As shown in Figure 4, under 4,6 and 8 division number condition with higher, non-conterminous off resonance conductor spacer 11,13 coplanes in whole off resonance conductor spacers 11,12,13,14 of first group of off resonance conductor spacer assembly 1, off resonance conductor spacer 12,14 is coplane not; Equal coplane not in whole off resonance conductor spacers 11,12,13,14 of second group of off resonance conductor spacer assembly 10; Non-conterminous off resonance conductor spacer 12,14 coplanes in whole off resonance conductor spacers 11,12,13,14 of the 3rd group of off resonance conductor spacer assembly 100, off resonance conductor spacer 11,13 is coplane not; Whole off resonance conductor spacers 11,12,13,14 at the 4th group of off resonance conductor spacer assembly 1000 are arranged identical with the whole off resonance conductor spacers 11,12,13,14 in second group of off resonance conductor spacer assembly 10; Can guarantee that whole sub-conductor 5,6,7,8 adjacent two off resonance conductor spacers are in different division disks respectively, and every root lead of this phase conductor adjacent two times span length is unequal gets final product.
In a preferred embodiment, all each time spans 51,52,53,61,62,63,71,72,73,81,82,83 of whole sub-conductors 5,6,7,8 of this phase conductor are unequal mutually.Like this, can make the dynamic characteristic of whole each time spans on whole sub-conductors different, mechanical impedance is in the state that do not match mutually, the anti-dance best results.
Need illustrate at this; in the utility model; one group of off resonance conductor spacer device can be defined as whole device, also the conductor spacer device of many groups off resonance conductor spacer devices whole on the lead and other type can be defined as whole device, not influence protection of the present utility model.
Inventive point of the present utility model is the position of each off resonance conductor spacer on each sub-conductor of lead by every group of off resonance conductor spacer of reasonable Arrangement assembly; control time span length to reach the purpose of anti-dance; therefore; it is any that other people pass through any way arrangement interval rod; as long as make in one group of conductor spacer assembly each independently the off resonance conductor spacer be not in the same division disk, just should belong to protection range of the present utility model.
Claims (9)
1. off resonance conductor spacer device, it is characterized in that: this off resonance conductor spacer device comprises one group of off resonance conductor spacer assembly corresponding to a phase conductor at least, one group of off resonance conductor spacer assembly comprises independently off resonance conductor spacer of a plurality of phases, each off resonance conductor spacer connects adjacent in twos sub-conductor respectively, two adjacent off resonance conductor spacers are in different division disks respectively, and adjacent two span length of every root lead of this phase conductor are unequal.
2. off resonance conductor spacer device as claimed in claim 1 is characterized in that: the division number of described lead is that the off resonance conductor spacer quantity that 3,4,6 or 8, one groups of off resonance conductor spacer assemblies comprise is 3,4,6 or 8.
3. off resonance conductor spacer device as claimed in claim 1 is characterized in that: this off resonance conductor spacer device comprises the described off resonance conductor spacer assembly of many groups, organizes off resonance conductor spacer assembly more and arranges successively along the axial direction of this phase conductor.
4. off resonance conductor spacer device as claimed in claim 1, it is characterized in that: this off resonance conductor spacer device comprises many described off resonance conductor spacer assemblies of group and a plurality of integrated spaced rod, and every group of off resonance conductor spacer assembly and each integrated spaced rod are arranged at interval along the axial direction of this phase conductor.
5. as claim 1,2,3 or 4 described off resonance conductor spacer devices, it is characterized in that: per two off resonance conductor spacers of every group of off resonance conductor spacer assembly are not in same division disk.
6. off resonance conductor spacer device as claimed in claim 5 is characterized in that: all each time spans of whole sub-conductors of this phase conductor are unequal mutually.
7. off resonance conductor spacer device as claimed in claim 1 is characterized in that: described off resonance conductor spacer comprises off resonance conductor spacer body and is connected to two wire clamps at these off resonance conductor spacer body two ends.
8. off resonance conductor spacer device as claimed in claim 7, it is characterized in that: the wire clamp at described two ends is the rigidity wire clamp, perhaps is the damping wire clamp; Perhaps in the middle of two wire clamps, one is the damping wire clamp, and another is the gyrodaming wire clamp.
9. off resonance conductor spacer device as claimed in claim 7 is characterized in that: described off resonance conductor spacer body is a double plate structure, and the wire clamp at two ends disposes damping rubber with the part that off resonance conductor spacer body two ends link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820233719XU CN201323424Y (en) | 2008-12-19 | 2008-12-19 | Mistuning spacer rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820233719XU CN201323424Y (en) | 2008-12-19 | 2008-12-19 | Mistuning spacer rod device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201323424Y true CN201323424Y (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820233719XU Expired - Lifetime CN201323424Y (en) | 2008-12-19 | 2008-12-19 | Mistuning spacer rod device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201323424Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006793A (en) * | 2015-08-07 | 2015-10-28 | 国网河南省电力公司电力科学研究院 | Hexagram-shaped dispersing anti-oscillation sub spacer system for six-bundle power transmission line |
| CN105006794A (en) * | 2015-08-07 | 2015-10-28 | 国网河南省电力公司电力科学研究院 | Union-Jack-shaped dispersing type anti-oscillation sub spacer system of extra-high-voltage eight-bundle power transmission line |
| CN105071329A (en) * | 2015-08-07 | 2015-11-18 | 国网河南省电力公司电力科学研究院 | Snowflake-type dispersed anti-wave sub-spacer system for six-bundle power transmission line |
| CN105071327A (en) * | 2015-08-07 | 2015-11-18 | 国网河南省电力公司电力科学研究院 | Hexagram-type dispersed anti-wave sub-spacer system for extra-high voltage eight-bundle power transmission line |
| CN105071328A (en) * | 2015-08-07 | 2015-11-18 | 国网河南省电力公司电力科学研究院 | Magic dispersed anti-wave sub-spacer system for extra-high voltage eight-bundle power transmission line |
| CN105680367A (en) * | 2016-02-25 | 2016-06-15 | 中国电力工程顾问集团西南电力设计院有限公司 | Method for solving spacing rod problem of bundled conductor power transmission line pole tower |
| CN108347024A (en) * | 2018-05-21 | 2018-07-31 | 南京南瑞继保电气有限公司 | A kind of damping conductor spacer of unequal arm length |
-
2008
- 2008-12-19 CN CNU200820233719XU patent/CN201323424Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006793A (en) * | 2015-08-07 | 2015-10-28 | 国网河南省电力公司电力科学研究院 | Hexagram-shaped dispersing anti-oscillation sub spacer system for six-bundle power transmission line |
| CN105006794A (en) * | 2015-08-07 | 2015-10-28 | 国网河南省电力公司电力科学研究院 | Union-Jack-shaped dispersing type anti-oscillation sub spacer system of extra-high-voltage eight-bundle power transmission line |
| CN105071329A (en) * | 2015-08-07 | 2015-11-18 | 国网河南省电力公司电力科学研究院 | Snowflake-type dispersed anti-wave sub-spacer system for six-bundle power transmission line |
| CN105071327A (en) * | 2015-08-07 | 2015-11-18 | 国网河南省电力公司电力科学研究院 | Hexagram-type dispersed anti-wave sub-spacer system for extra-high voltage eight-bundle power transmission line |
| CN105071328A (en) * | 2015-08-07 | 2015-11-18 | 国网河南省电力公司电力科学研究院 | Magic dispersed anti-wave sub-spacer system for extra-high voltage eight-bundle power transmission line |
| CN105680367A (en) * | 2016-02-25 | 2016-06-15 | 中国电力工程顾问集团西南电力设计院有限公司 | Method for solving spacing rod problem of bundled conductor power transmission line pole tower |
| CN108347024A (en) * | 2018-05-21 | 2018-07-31 | 南京南瑞继保电气有限公司 | A kind of damping conductor spacer of unequal arm length |
| CN108347024B (en) * | 2018-05-21 | 2024-03-15 | 南京南瑞继保电气有限公司 | Damping spacer with unequal arm lengths |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091007 |
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| CX01 | Expiry of patent term |