CN106711841A - Power transmission line lead sharp oscillation limiting type prevention method - Google Patents
Power transmission line lead sharp oscillation limiting type prevention method Download PDFInfo
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- CN106711841A CN106711841A CN201510796644.0A CN201510796644A CN106711841A CN 106711841 A CN106711841 A CN 106711841A CN 201510796644 A CN201510796644 A CN 201510796644A CN 106711841 A CN106711841 A CN 106711841A
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- transmission line
- stay
- wire
- supported device
- electricity
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Abstract
The invention relates to a power transmission line lead sharp oscillation limiting type prevention method comprising the steps that a stay wire device is arranged in a span according to the lead span between the two ends of a power transmission line; the galloping amplitude of the power transmission line is limited according to the galloping characteristic of the power transmission line and the stay wire device; the distance of lead adjustment is determined according to the change of the temperature difference of the area of the power transmission line and different spans; the insulation distance of the lead is determined according to different voltage levels of the power transmission line; and the connection mode of the lead and the stay wire device is determined according to the distribution of all phases of leads of different power transmission lines. According to the technical scheme, the lead can be stably and effectively held and the galloping amplitude of the lead can be limited.
Description
Technical field：
Taken precautions against calamities field the present invention relates to transmission line of electricity, be more particularly to a kind of transmission line wire and significantly shake
Swing limit-type prevention and controls.
Background technology：
In China's power grid meteorological disaster, aerial condutor icing is waved is that occurrence frequency is high, coverage wide,
Cause damage a kind of big disaster form.In face of complex environment factor, for build strong national grid,
Ensure the long-term safety stable operation of bulk power grid, it is necessary to carry out correlative study work, set up it is safe, advanced,
It is economical, reliably wave the mechanism of preventing and treating.
As the fast-developing and terrible weather of China's power network scale is frequently occurred, into the new century with
Come, the frequency that power network waves accident substantially increases, extent of injury increase, it is almost annual all to occur greatly
Scope waves accident, causes serious economic loss and social influence.At present, China's transmission line of electricity
The anti-dancing device of middle use mainly has inter-phase spacer, cable clip rotary type conductor spacer, cable clip rotary type double pendulum
Anti-dance device etc..Inter-phase spacer be mainly used in same tower it is double/multi circuit transmission lines, cable clip rotary type conductor spacer and double
Pendulum anti-dance device has use in list, multi circuit transmission lines.It is complex due to waving genesis mechanism, it is current
Also there is the limitation of application in anti-dancing device and anti-dance technology, particularly with the horizontal row alignment that span is larger
Road (current DC line is horizontally arranged mode), various anti-dancing devices and anti-dance technology all have one
Fixed limitation.Therefore, on the basis of technical feasibility and economy is considered, it is necessary to study new
Anti-dance approach, improves the anti-dance ability of circuit, ensures the safe and stable operation of China's transmission line of electricity.
The content of the invention：
Limit-type prevention and controls are significantly vibrated it is an object of the invention to provide a kind of transmission line wire, can
Stabilization is effective to grip wire, and can limit the throw amplitude value of wire.
To achieve the above object, the present invention uses following technical scheme：A kind of transmission line wire significantly shakes
Limit-type prevention and controls are swung, including：
According to the wire span between the transmission line of electricity two ends, stay-supported device is set between the span；
The dance of feature and the stay-supported device to the transmission line of electricity is waved according to the transmission line of electricity
Dynamic amplitude is limited；
Difference variation and the different spans according to the transmission line of electricity location are led described in determining
The distance of line adjustment；
Voltage class according to the transmission line of electricity is different, determines the insulation distance of the wire；
The distribution of each phase conductor according to the different transmission lines of electricity, determines wire with the stay-supported device
The mode of connection.
The stay-supported device includes drum and steel wire rope；The one ends wound of the steel wire rope is in the drum
On, the other end of the steel wire rope is connected on the U-shaped link of the insulator lower end of transmission line of electricity；It is described
On the basis of drum is arranged on by locking system.
When the span is less than 300 meters, the stay-supported device is arranged at the 1/2 of the span,
Its bracing wire length determines according to the environment of the transmission line of electricity location；When the span is 300-500
When between rice, the stay-supported device is arranged at the 1/3 of the span and at 2/3, everywhere；When
When the span is more than 500 meters, the stay-supported device is arranged at the 1/4 of the span, 1/2
At place and 3/4.
When the conductor galloping amplitude is 2 meters, the bracing wire maximum tension of the stay-supported device is
14.9kN, the coupling part of the stay-supported device includes locking system, connection gold utensil and basis；It is described
The control load of coupling part is taken as 20kN.
The adjustment distance of the wire influences to determine according to temperature change；The sag converted quantity of the wire is
Every 10 ° of sag variable quantities are 0.4m.
When the transmission line of electricity is single loop, the mode that three-phase conducting wire is connected with the stay-supported device
For：The one end being connected with an insulator by inter-phase spacer respectively per phase conductor is connected；Described in each
The other end of insulator is connected with the steel wire rope of a stay-supported device；Each described stay-supported device
Drum by locking fill be fixed on it is single on the basis of.
When the transmission line of electricity is single loop, the mode that three-phase conducting wire is connected with the stay-supported device
For：The one end being connected with an insulator by inter-phase spacer respectively per phase conductor is connected；Described in each
The other end of insulator is linked together by same triangle connecting plate altogether；One top of the triangle connecting plate
Point is connected with the steel wire rope other end of the stay-supported device；The drum of the stay-supported device passes through locking
Dress be fixed on it is single on the basis of.
When the transmission line of electricity is double loop pattern, two return wires are respectively positioned at the steel tower of transmission line of electricity
Both sides, per side loop three-phase conducting wire for vertical arrangement, between the three-phase conducting wire pass through three
Inter-phase spacer draws；The outermost inter-phase spacer passes through insulator and the stay-supported device
The steel wire rope other end is connected；The drum of the stay-supported device by locking fill be fixed on it is single on the basis of；
The stay-supported device is fixed on the lower phase of the iron tower of power transmission line.
The inter-phase spacer includes quadripartion conductor spacer；The inter-phase spacer passes through steel plate and insulator
Connection；The inter-phase spacer is arranged in the mounting hole on the steel plate by bolt.
The inter-phase spacer includes quadripartion conductor spacer；The adjacent inter-phase spacer passes through compound inslation
Son connection；The inter-phase spacer is connected by by steel plate with composite insulator；The inter-phase spacer
It is arranged in the mounting hole on the steel plate by bolt.
With immediate prior art ratio, the present invention provides technical scheme has following excellent effect
1st, technical solution of the present invention effectively can wave development by limiting circuitry by less bracing wire load
Process；
2nd, technical solution of the present invention effectively reduces line oscillation amplitude and energy, improves the anti-of transmission line of electricity
Dance ability, reaches anti-dance purpose；
3rd, technical solution of the present invention ensures the safe and stable operation of China's transmission line of electricity；
4th, technical solution of the present invention set up it is safe, advanced, economical, reliably wave the mechanism of preventing and treating.
Brief description of the drawings
Fig. 1 is the anti-dancing device layout drawing of embodiment of the present invention single loop；
Fig. 2 is the anti-dancing device layout drawing of embodiment of the present invention single loop；
Fig. 3 is the anti-dancing device layout drawing in embodiment of the present invention double loop；
Fig. 4 is embodiment of the present invention inter-phase spacer structural representation；
Fig. 5 is present invention method flow chart；
1- quadripartion conductor spacers, 2- composite insulators, 3- steel plates, 4- steel wire ropes, 5- drums, 6- bases.
Specific embodiment
With reference to embodiment, the invention will be described in further detail.
Embodiment 1：
The invention of this example provides a kind of transmission line wire and significantly vibrates limit-type prevention and controls, according to waving
The characteristics of area's transmission line of electricity, it is desirable to which it can realize reducing the probability for waving area's transmission line galloping.This is specially
The anti-dance approach of profit design disclosure satisfy that the demand, and transmission line galloping is that the wind energy of wiring system is continuous
Accumulation, and final unstability nonlinear motion process, danced the stage initially, energy is smaller, by compared with
Small bracing wire load effectively can wave evolution by limiting circuitry, and then effectively reduce line oscillation width
Value and energy, improve the anti-dance ability of transmission line of electricity, reach anti-dance purpose.Methods described is to use defeated
Stay-supported device is installed according to span between steel tower between the steel tower of electric line two, i.e., it is limited by stay-supported device
Vibration amplitude.First, according to area's transmission line galloping feature is waved, it is determined that when line oscillation amplitude reaches
When much, amplitude limitation is carried out to the circuit, that is, tense wire.Meanwhile, the day in area is waved according to difference
The difference variation of gas feature, i.e. this area, it is considered to which its span is different, determines the size of system call interception distance.
3rd, the voltage class according to transmission line of electricity is different, determines the insulation distance of system.4th, according to not
With the characteristic distributions of each phase conductor of transmission line of electricity, the frame mode of system is determined.
Drum 5 is installed on the stay-supported device, the one ends wound of steel wire rope 4 on drum 5, steel wire
4 other ends of restricting are connected on the U-shaped link of insulator lower end；
The set-up mode of the stay-supported device, it is as shown in the table：
Bracing wire length needs to be determined according to actual conditions, because the environment residing for different circuits is not
Together, some circuits may in mountain area, have in Plain, have on hills, since adapt to the liftoff height of wire
The difference of degree, because different spans, different voltage class, under varying environment, wire is different to ground level.
When conductor galloping amplitude is about 2 meters (peak-to-peak value), bracing wire maximum tension is 14.9kN, it is considered to
To safety coefficient, in the anti-dancing device design of stay-supported, the correlation such as locking system, connection gold utensil, basis
The control load of coupling part is taken as 20kN.Locking system includes bearing, winding mechanism and acceleration induction
Mechanism.Wherein bearing is for supporting whole device.Winding mechanism, drum and acceleration induction machine
Structure is linked together with same axle, can be rotated together.Winding mechanism is used for providing rotatory force to drum
Square.Acceleration mechanism is used for sensing drum acceleration, when acceleration exceedes design load, locking rotating disk,
Do not allow it to rotate, so as to hold wire, do not allow it to produce more serious brandishing.The connection gold utensil
Including steel wire rope, U-shaped ring, extension ring, conductor spacer and insulator (band grading ring).
Consider that sag varies with temperature influence, so that span is as 500m as an example, summer and winter temperature change turns to -10 DEG C
At~40 DEG C, span center sag variable quantity is about 2.0m.Rule of thumb understand, every 10 ° of sags change
It is 0.4m to measure.
Insulation distance is according to GB/T 311.2-2002《Insulation Coordination _ part 2 _ high voltage power transmission and transforming sets
Standby Insulation Coordination uses directive/guide》
According to the characteristics of its three-phase horizontal distribution, three-phase conducting wire is respectively by locking adjusting means, insulation
Device, bracing wire and triangle yoke plate are connected and fixed on single basic 6, or are fixed by three isolated foundations 6,
Its connected mode is as Figure 1-Figure 2.From from the aspect of easy construction, and prevention effect, final choosing
Isolated footing, such as Fig. 1 are selected, each basis 6 controls a mode for bracing wire.
(2) double loop
For double loop pattern, respectively positioned at the both sides of steel tower, the three-phase conducting wire per primary Ioops is in two loops
Vertical arrangement；
According to every loop thirdly the characteristics of perpendicular distribution, being drawn by inter-phase spacer between three-phase, prevent
Lower phase is fixed in dance bracing wire, and connected mode is as shown in Figure 3.
Inter-phase spacer structural shape is as shown in figure 4, it includes quadripartion conductor spacer 1, composite insulator
2, steel plate 3 is installed by bolt on quadripartion conductor spacer body, mounting hole, compound inslation are beaten on steel plate 3
Son 2 is connected by bolt with steel plate 3.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention rather than to it
Limitation, those of ordinary skill in the art with reference to above-described embodiment although should be understood：Still can be right
Specific embodiment of the invention is modified or equivalent, and these are without departing from spirit of the invention and model
Any modification enclosed or equivalent, apply pending claims of the invention it
It is interior.
Claims (10)
1. a kind of transmission line wire significantly vibrates limit-type prevention and controls, it is characterised in that：Including：
According to the wire span between the transmission line of electricity two ends, stay-supported device is set between the span；
According to the transmission line of electricity wave feature and the stay-supported device waves width to the transmission line of electricity
Value is limited；
Difference variation and the different spans according to the transmission line of electricity location determine that the wire is adjusted
Whole distance；
Voltage class according to the transmission line of electricity is different, determines the insulation distance of the wire；
The distribution of each phase conductor according to the different transmission lines of electricity, determines that wire connects with the stay-supported device
The mode for connecing.
2. a kind of transmission line wire as claimed in claim 1 significantly vibrates limit-type prevention and controls, and it is special
Levy and be：The stay-supported device includes drum and steel wire rope；The one ends wound of the steel wire rope is in the line
On disk, the other end of the steel wire rope is connected on the U-shaped link of the insulator lower end of transmission line of electricity；It is described
On the basis of drum is arranged on by locking system.
3. a kind of transmission line wire as claimed in claim 1 or 2 significantly vibrates limit-type prevention and controls,
It is characterized in that：When the span is less than 300 meters, the stay-supported device is arranged on the span
At 1/2, its bracing wire length determines according to the environment of the transmission line of electricity location；When the span is
When between 300-500 meters, the stay-supported device is arranged at the 1/3 of the span and at 2/3, everywhere；
When the span is more than 500 meters, the stay-supported device is arranged at the 1/4 of the span, at 1/2
At 3/4.
4. a kind of transmission line wire as claimed in claim 2 significantly vibrates limit-type prevention and controls, and it is special
Levy and be：When the conductor galloping amplitude is 2 meters, the bracing wire maximum tension of the stay-supported device is
14.9kN, the coupling part of the stay-supported device includes locking system, connection gold utensil and basis；The company
The control load of socket part point is taken as 20kN.
5. a kind of transmission line wire as claimed in claim 1 significantly vibrates limit-type prevention and controls, and it is special
Levy and be：The adjustment distance of the wire influences to determine according to temperature change；The sag converted quantity of the wire
It is that every 10 ° of sag variable quantities are 0.4m.
6. a kind of transmission line wire as claimed in claim 2 significantly vibrates limit-type prevention and controls, and it is special
Levy and be：When the transmission line of electricity is single loop, the mode that three-phase conducting wire is connected with the stay-supported device
For：The one end being connected with an insulator by inter-phase spacer respectively per phase conductor is connected；Each is described absolutely
The other end of edge is connected with the steel wire rope of a stay-supported device；The line of each stay-supported device
Disk by locking fill be fixed on it is single on the basis of.
7. a kind of transmission line wire as claimed in claim 2 significantly vibrates limit-type prevention and controls, and it is special
Levy and be：When the transmission line of electricity is single loop, the mode that three-phase conducting wire is connected with the stay-supported device
For：The one end being connected with an insulator by inter-phase spacer respectively per phase conductor is connected；Each is described absolutely
The other end of edge is linked together by same triangle connecting plate altogether；One summit of the triangle connecting plate with
The steel wire rope other end connection of the stay-supported device；The drum of the stay-supported device is filled by locking and fixed
On the basis of single.
8. a kind of transmission line wire as claimed in claim 2 significantly vibrates limit-type prevention and controls, and it is special
Levy and be：When the transmission line of electricity is double loop pattern, two return wires are respectively positioned at the iron of transmission line of electricity
The both sides of tower, the three-phase conducting wire in the loop per side is vertical arrangement, and three are passed through between the three-phase conducting wire
Inter-phase spacer draws；The outermost inter-phase spacer passes through the steel of insulator and the stay-supported device
The cord other end is connected；The drum of the stay-supported device by locking fill be fixed on it is single on the basis of；It is described
Stay-supported device is fixed on the lower phase of the iron tower of power transmission line.
9. a kind of transmission line wire as claimed in claims 6 or 7 significantly vibrates limit-type prevention and controls,
It is characterized in that：The inter-phase spacer includes quadripartion conductor spacer；The inter-phase spacer by steel plate with
Insulator is connected；The inter-phase spacer is arranged in the mounting hole on the steel plate by bolt.
10. a kind of transmission line wire as claimed in claim 8 significantly vibrates limit-type prevention and controls, its
It is characterised by：The inter-phase spacer includes quadripartion conductor spacer；The adjacent inter-phase spacer is by compound
Insulator is connected；The inter-phase spacer is connected by by steel plate with composite insulator；The Interphase interval
Rod is arranged in the mounting hole on the steel plate by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796644.0A CN106711841B (en) | 2015-11-18 | 2015-11-18 | A kind of transmission line wire substantially vibrates limit-type control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796644.0A CN106711841B (en) | 2015-11-18 | 2015-11-18 | A kind of transmission line wire substantially vibrates limit-type control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106711841A true CN106711841A (en) | 2017-05-24 |
| CN106711841B CN106711841B (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510796644.0A Active CN106711841B (en) | 2015-11-18 | 2015-11-18 | A kind of transmission line wire substantially vibrates limit-type control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107895925A (en) * | 2017-11-27 | 2018-04-10 | 国网河南省电力公司电力科学研究院 | A kind of limit-type anti-dancing device and the synthesis anti-dance approach that mutually conductor spacer is combined |
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| CN201134653Y (en) * | 2007-12-19 | 2008-10-15 | 中国电力科学研究院 | Experiment section connecting armour clamp |
| CN101931198A (en) * | 2010-08-24 | 2010-12-29 | 中国电力科学研究院 | Spacer rod type anti-oscillation device with preformed and rotary wire clamps |
| CN201829902U (en) * | 2010-08-24 | 2011-05-11 | 中国电力科学研究院 | Preformed and rotary wire clip spacer-type double-pendulum anti-galloping device |
| CN203850795U (en) * | 2014-04-16 | 2014-09-24 | 中国能源建设集团安徽省电力设计院 | Windage yaw prevention flexible control device used for power transmission lines |
| CN204161148U (en) * | 2014-07-04 | 2015-02-18 | 北京盈电电气有限公司 | The anti-dancing device of electrified railway strong wind district additive wire |
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2015
- 2015-11-18 CN CN201510796644.0A patent/CN106711841B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201134653Y (en) * | 2007-12-19 | 2008-10-15 | 中国电力科学研究院 | Experiment section connecting armour clamp |
| CN101931198A (en) * | 2010-08-24 | 2010-12-29 | 中国电力科学研究院 | Spacer rod type anti-oscillation device with preformed and rotary wire clamps |
| CN201829902U (en) * | 2010-08-24 | 2011-05-11 | 中国电力科学研究院 | Preformed and rotary wire clip spacer-type double-pendulum anti-galloping device |
| CN203850795U (en) * | 2014-04-16 | 2014-09-24 | 中国能源建设集团安徽省电力设计院 | Windage yaw prevention flexible control device used for power transmission lines |
| CN204161148U (en) * | 2014-07-04 | 2015-02-18 | 北京盈电电气有限公司 | The anti-dancing device of electrified railway strong wind district additive wire |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107895925A (en) * | 2017-11-27 | 2018-04-10 | 国网河南省电力公司电力科学研究院 | A kind of limit-type anti-dancing device and the synthesis anti-dance approach that mutually conductor spacer is combined |
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| Publication number | Publication date |
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| CN106711841B (en) | 2019-03-22 |
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