CN110047630B - Tension string of three split conductors of insulator - Google Patents
Tension string of three split conductors of insulator Download PDFInfo
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- CN110047630B CN110047630B CN201910477030.4A CN201910477030A CN110047630B CN 110047630 B CN110047630 B CN 110047630B CN 201910477030 A CN201910477030 A CN 201910477030A CN 110047630 B CN110047630 B CN 110047630B
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- 239000012212 insulator Substances 0.000 title claims abstract description 89
- 239000004020 conductor Substances 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000012211 strain insulator Substances 0.000 claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 208000025274 Lightning injury Diseases 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/005—Insulators structurally associated with built-in electrical equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/04—Chains; Multiple chains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/06—Fastening of insulator to support, to conductor, or to adjoining insulator
- H01B17/10—Fastening of insulator to support, to conductor, or to adjoining insulator by intermediate link
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/12—Special features of strain insulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/46—Means for providing an external arc-discharge path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/48—Means for obtaining improved distribution of voltage; Protection against arc discharges over chains or other serially-arranged insulators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
Abstract
The invention relates to an insulator three-split conductor strain insulator string, which comprises a plurality of insulators and three strain clamps; the insulators and the strain clamps are horizontally distributed; the insulators are arranged in a row, a hanging mechanism is arranged at the left side end, a right yoke plate is arranged at the right side end, and the right yoke plate is connected with three strain clamps respectively; three strain clamps are uniformly distributed on the same vertical plane in a triangular shape, and the distance between two adjacent strain clamps is 450mm; the right connecting plate is provided with a grading ring and an arcing ring; the hanging mechanism is provided with a blocking body; the choke, the arcing ring and the equalizing ring are on the same straight line; the choke body is a conducting rod, an inductance coil is spirally wound on the conducting rod, and an insulating rubber ring is sleeved outside the inductance coil. Three strain clamps distributed in a triangular mode are designed, and normal operation of a power transmission line is ensured; the power failure or tripping accident caused by lightning stroke can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of high-voltage power fittings, in particular to a strain insulator string of an insulator three-split conductor.
Background
Electric power is an energy source powered by electrical energy. The invention and application of electric power in the 70 s of the 19 th century raised the second industrialized climax. Become one of three technological innovations occurring in the world since the 18 th century of human history, and the life of people is changed from this technology. The system is an internet age at present, and the power is still in continuous increasing demand, because more products using the power such as computers, household appliances and the like are invented. The constant advent of new technologies has not been repudiated to make electricity a necessity for people.
After the power is generated by the power generation equipment, the power is transmitted to each household through the wires, the power is required to pass through the power tower in the process, and the wires are required to be used for the wire tension string when the wires pass through the power tower.
The wire strain insulator string is an insulator string group with all hardware fittings and accessories and bearing the tension of one wire or split wires, and the existing wire strain insulator string has the following defects: 1. only two split, four split strain strings; 2. the existing wire tension string is unreasonable in structural design, insufficient in connection strength and easy to damage in the use process.
Lightning stroke wire breakage mechanism of insulated wire: the lightning strike withstand characteristics of insulated conductors are significantly different compared to bare conductors. When direct lightning strike or induced lightning overvoltage acts on the bare conductor to cause insulator flashover, the continuous power frequency short circuit current arc moves along the conductor in the direction away from the power supply under the action of electric force, so that the conductor is not seriously burned. The insulation wires are different, the lightning overvoltage breaks down the insulation layer of the wires at first to cause the insulator to flash over, the broken insulation layer is in a pinhole shape, the continuous power frequency short circuit current arc is blocked by the surrounding insulation, the arc root can only burn at the pinhole, and the wires can be burned out neatly in a very short time.
Disclosure of Invention
Aiming at the problems, the invention provides the insulator three-split conductor strain insulator string which can adapt to higher and higher voltage levels and ensure the safe and stable operation of a power grid and is used for high-voltage transmission; avoiding power failure or tripping accidents caused by lightning strike.
The technical scheme of the invention is as follows:
An insulator three-split conductor strain insulator string comprises a plurality of insulators and three strain clamps; the insulators and the strain clamps are horizontally distributed; the insulators are arranged in a row, a hanging mechanism is arranged at the left side end, a right yoke plate is arranged at the right side end, and the right yoke plate is connected with three strain clamps respectively; three strain clamps are uniformly distributed on the same vertical plane in a triangular shape, and the distance between two adjacent strain clamps is 450mm; the right connecting plate is provided with a grading ring and an arcing ring; the hanging mechanism is provided with a blocking body; the choke, the arcing ring and the equalizing ring are on the same straight line; the choke body is a conducting rod, an inductance coil is spirally wound on the conducting rod, and an insulating rubber ring is sleeved outside the inductance coil.
Three wire tension strings are adopted, and the number of split wires is increased so as to adapt to the higher and higher voltage levels; meanwhile, the wires are distributed in a triangular mode, on one hand, in the same space range, the distance between the wires can be guaranteed to the greatest extent, collision between the wires is avoided, and on the other hand, the overall structure of the hardware fitting and the wire tension string is better and more stable, so that the structural strength of the hardware fitting and the overall strength of the suspension string are improved, the stress structure between products is more reasonable, and normal operation of a power transmission line is ensured; the design of 450mm meets the maximum utilization of space, and the mutual contact between wires is effectively avoided; when the electric wire near the tension string is struck by lightning, direct lightning strike or induced lightning overvoltage acts on the wire, under the action of electric force, the power frequency short-circuit current arc moves along the wire to deviate from the power supply direction, when the current arc passes through the tension string, a discharge channel is formed between the arcing ring and the uniform ring, the arc is introduced into the equalizing ring and the choke body, and when the power frequency freewheel occurs, the arc can be automatically extinguished under the action of the choke body when the waveform zero crossing point of the power frequency freewheel occurs, so that the outage or tripping accident caused by lightning strike is avoided.
The technical scheme is further improved and refined, the strain clamp comprises a clamp main body, a steel anchor, a drainage plate and a drainage clamp, wherein the clamp main body is a hollow aluminum alloy pipe and comprises a straight rod section and a compression joint section, the steel anchor comprises a hanging ring and an anchor rod, one end of the anchor rod is a hollow blind pipe part, the other end of the anchor rod is a solid part, the solid part is fixedly connected with the hanging ring, the hollow blind pipe part penetrates through one end of the clamp main body and stretches into the clamp main body, the hollow blind pipe part is positioned in the straight rod section of the clamp main body, a hollow pipe with hardness smaller than that of a carbon fiber composite core is arranged in the hollow blind pipe part, the solid part is positioned in the compression joint section of the clamp main body, one end of the drainage plate is fixed on the straight rod section of the wire clamp main body, and the other end of the drainage plate is connected with the drainage clamp.
The technical scheme is further improved and refined, and the insulators are distributed side by side; the hanging mechanism comprises a plurality of hanging pieces, the hanging pieces are connected with the insulators in a one-to-one correspondence manner, and the insulator three-split conductor tension string is an insulator duplex double-hanging point three-split conductor tension string; the hanging piece comprises two U-shaped hanging plates, a parallel hanging plate and a ball head hanging plate, wherein the two U-shaped hanging plates, the parallel hanging plate and the ball head hanging plate are sequentially connected, and the ball head hanging plate is connected with the insulator; the conductive rod is fixedly connected with the ball head hanging plate; a DB adjusting plate and a PT adjusting plate are further arranged between the U-shaped hanging plate and the parallel hanging plate; the DB adjusting plate is connected with the U-shaped hanging plate, the DB adjusting plate is connected with the PT adjusting plate in a matched mode, and the PT adjusting plate is connected with the parallel hanging plate.
The technical scheme is further improved and refined, and the insulators are distributed in three triangular shapes; the mounting mechanism is respectively connected with three insulators, and the insulator three-split conductor strain string is an insulator three-connection single-hanging-point three-split conductor strain string; the mounting mechanism comprises an EB hanging plate and a left connecting plate, wherein the left connecting plate is formed by connecting three connecting plates, the EB hanging plate is connected with a first connecting plate, the first connecting plate is respectively connected with a second connecting plate and a third connecting plate through right-angle hanging plates, and the second connecting plate and the third connecting plate are respectively perpendicular to the first connecting plate and are respectively positioned at two sides of the first left connecting plate; the insulators in the middle are connected with the middle of the second left connecting plate through the ball head hanging plate, and the insulators on the two sides are respectively connected with the two sides of the third connecting plate through the ball head hanging plate; the conducting rod is fixedly connected with the second left connecting plate or the third connecting plate; a PT adjusting plate is arranged between the EB hanging plate and the first connecting plate; the PT regulating plate is connected with the EB hanging plate through the right-angle hanging plate, and the PT regulating plate is connected with the first yoke plate.
The technical scheme is further improved and refined, and the right connecting plate is formed by connecting two connecting plates; the first connecting plate is connected with the two insulators through the bowl head hanging plate respectively, the first connecting plate is connected with the second connecting plate through the right-angle hanging plate, and the second connecting plate is perpendicular to the first lower connecting plate; the equalizing ring is fixedly arranged on the second connecting plate through a supporting frame; the three strain clamps are fixedly connected with the second linkage plate respectively; the arcing ring is fixedly connected with the first yoke plate.
The technical scheme is further improved and refined, the right connecting plate is a connecting plate, and the right connecting plate is connected with three insulators through the bowl head hanging plate respectively; the equalizing ring is fixedly arranged on the right yoke plate through a supporting frame, and three strain clamps are respectively and fixedly connected with the right yoke plate; the arcing ring is fixedly connected with the right yoke plate.
The technical scheme is further improved and refined, and the middle strain clamp is fixedly connected with the second yoke plate through the ZBD hanging plate; the strain clamps on two sides are fixedly connected with the second yoke plate through a third yoke plate, the third yoke plate is vertical to the second lower yoke plate, and the strain clamps on two sides are respectively fixedly connected with one end of the bottom of the third yoke plate; an extension pull rod and a DB adjusting plate are further arranged between the ZBD hanging plate and the strain clamp, the upper end of the extension pull rod is connected with the ZBD hanging plate through a right-angle pull plate, the lower end of the extension pull rod is connected with the DB adjusting plate, and the DB adjusting plate is connected with the strain clamp through a U-shaped connecting hanging ring; and a DB adjusting plate is further arranged between the third connecting plate and the strain clamp and is connected with the third connecting plate through a right-angle hanging plate, and the DB adjusting plate is connected with the strain clamp through a U-shaped hanging ring.
The technical scheme is further improved and refined, and the middle strain clamp is fixedly connected with the right yoke plate through the cross hanging plate; the strain clamps on the two sides are respectively connected with the right yoke plate; a PT adjusting plate and a DB adjusting plate are further arranged between the cross hanging plate and the strain clamp, the PT adjusting plate is connected with the cross hanging plate through a right-angle hanging plate, the PT adjusting plate is connected with the DB adjusting plate in a matched mode, and the DB adjusting plate is connected with the strain clamp through a U-shaped hanging ring; and a DB adjusting plate is further arranged between the right yoke plate and the strain clamp and connected with the right yoke plate through a right-angle hanging plate, and the DB adjusting plate is connected with the strain clamp through a U-shaped hanging ring.
The technical scheme is further improved and refined, and the insulator is a 300kN disc insulator.
The technical scheme is further improved and refined, and the insulator is a 210kN disc insulator.
The invention has the advantages that the design is reasonable, the structure is simple, three strain clamps distributed in a triangular manner are designed, so that the three-split conductor strain insulator string of the insulator can adapt to higher and higher voltage levels, the structural strength of the hardware fitting and the integral strength of the conductor strain insulator string are improved, the stress structure among products is more reasonable, and the normal operation of a power transmission line is ensured; the power failure or tripping accident caused by lightning stroke can be effectively avoided.
Drawings
Fig. 1 is a front view of a 300kN disc insulator duplex double-hanging-point wire strain insulator string.
Fig. 2 is a side view of a 300kN disc insulator duplex double-hanging-point wire strain insulator string.
Fig. 3 is a front view of a 200kN disc insulator triple single-drop three-split conductor strain insulator string.
Fig. 4 is a side view of a 200kN disc insulator triple single-drop three split conductor strain insulator string.
Fig. 5 is a schematic diagram of a strain clamp in semi-section.
FIG. 6 is a schematic view of a flow blocking body structure.
In the figure, an insulator 1, a grading ring 2, a right yoke plate 3, a strain clamp 4, a hanging mechanism 5, an arc-striking ring 7, a clamp main body 4-1, a steel anchor 4-2, a drainage plate 4-3, a streamline clamp 4-4 and a current blocking body 6, a conducting rod 6-1 and an inductance coil 6-2.
Detailed Description
Example 1
As shown in figures 1-2, 5 and 6,
A300 kN disc insulator duplex double-hanging-point wire strain insulator string comprises two insulators 1 and three strain clamps 4; the insulators 1 and the strain clamps 4 are horizontally distributed; the insulators 1 are 300kN disc insulators, the two insulators 1 are arranged in a row, a hanging mechanism 5 is arranged at the left side end of the insulators, a right yoke plate 3 is arranged at the right side end of the insulators, and the insulators are respectively connected with three strain clamps 4 through the right yoke plate 3; three strain clamps 4 are distributed on the same vertical plane in a triangular manner, and the distance between two adjacent strain clamps 4 is 450mm; the right yoke plate 3 is provided with a grading ring 2 and an arcing ring 7; the hanging mechanism 5 is provided with a blocking body 6; the choke body 6, the arcing ring 7 and the equalizing ring 2 are on the same straight line; the choke body 6 is a conductive rod 6-1, the conductive rod 6-1 is spirally wound with an inductance coil 6-2, and an insulating rubber ring is sleeved outside the inductance coil 6-2; the right yoke plate 3 is formed by connecting two yoke plates; the first connecting plate is connected with the two insulators 1 through the bowl head hanging plate respectively, the first connecting plate is connected with the second connecting plate through the right-angle hanging plate, and the second connecting plate is perpendicular to the first lower connecting plate; the equalizing ring 2 is fixedly arranged on the second connecting plate through a supporting frame; the three strain clamps 4 are respectively and fixedly connected with the second linkage plate; the arcing ring 7 is fixedly connected with the first yoke plate; the hanging mechanism 5 comprises a plurality of hanging pieces which are connected with the insulators 1 in a one-to-one correspondence manner; the hanging piece comprises two U-shaped hanging plates, a parallel hanging plate and a ball head hanging plate, wherein the two U-shaped hanging plates, the parallel hanging plate and the ball head hanging plate are sequentially connected, and the ball head hanging plate is connected with the insulator 1; the conducting rod 6-1 is fixedly connected with the ball head hanging plate; a DB adjusting plate and a PT adjusting plate are further arranged between the U-shaped hanging plate and the parallel hanging plate; the DB adjusting plate is connected with the U-shaped hanging plate, the DB adjusting plate is connected with the PT adjusting plate in a matched mode, and the PT adjusting plate is connected with the parallel hanging plate; the middle strain clamp 4 is fixedly connected with the second yoke plate through a ZBD hanging plate; the strain clamps 4 on two sides are fixedly connected with the second yoke plate through a third yoke plate, the third yoke plate is vertical to the second lower yoke plate, and the strain clamps on two sides are respectively fixedly connected with one end of the bottom of the third yoke plate; an extension pull rod and a DB adjusting plate are further arranged between the ZBD hanging plate and the strain clamp 4, the upper end of the extension pull rod is connected with the ZBD hanging plate through a right-angle pull plate, the lower end of the extension pull rod is connected with the DB adjusting plate, and the DB adjusting plate is connected with the strain clamp 4 through a connecting U-shaped hanging ring; a DB adjusting plate is further arranged between the third connecting plate and the strain clamp 4, the DB adjusting plate is connected with the third connecting plate through a right-angle hanging plate, and the DB adjusting plate is connected with the strain clamp 4 through a U-shaped hanging ring; the strain clamp 4 comprises a clamp main body 4-1, a steel anchor 4-2, a drainage plate 4-3 and a drainage clamp 4-4, wherein the clamp main body 4-1 is a hollow aluminum alloy pipe and comprises a straight rod section and a compression joint section, the steel anchor 4-2 comprises a hanging ring and an anchor rod, one end of the anchor rod 4-2 is a hollow blind pipe part, the other end of the anchor rod is a solid part, the solid part is fixedly connected with the hanging ring, the hollow blind pipe part penetrates through one end of the clamp main body and stretches into the clamp main body 4-1, the hollow blind pipe part is positioned in the straight rod section of the clamp main body 4-1, a hollow pipe with hardness smaller than that of a carbon fiber composite core is arranged in the hollow blind pipe part, the solid part is positioned in the compression joint section of the clamp main body 4-1, one end of the drainage plate 4-3 is fixed on the straight rod section of the clamp main body 4-1, the other end is connected with a drainage wire clamp 4-4.
Example 2
As shown in fig. 3-6, a 200kN disc insulator triple single-hanging-point three-split-conductor strain insulator string comprises three insulators 1 and three strain clamps 4; the insulators 1 and the strain clamps 4 are horizontally distributed; the insulators 1 are 210kN disc insulators, three insulators 1 are arranged in an arrangement mode, a hanging mechanism 5 is arranged at the left side end of the insulators, a right yoke plate 3 is arranged at the right side end of the insulators, and the insulators are respectively connected with three strain clamps 4 through the right yoke plate 3; three strain clamps 4 are distributed on the same vertical plane in a triangular manner, and the distance between two adjacent strain clamps 4 is 450mm; the right yoke plate 3 is provided with a grading ring 2 and an arcing ring 7; the hanging mechanism 5 is provided with a blocking body 6; the choke body 6, the arcing ring 7 and the equalizing ring 2 are on the same straight line; the choke body 6 is a conductive rod 6-1, the conductive rod 6-1 is spirally wound with an inductance coil 6-2, and an insulating rubber ring is sleeved outside the inductance coil 6-2; the right connecting plate 3 is a connecting plate and is connected with three insulators through bowl head hanging plates respectively; the equalizing ring 2 is fixedly arranged on the right yoke plate 3 through a supporting frame, and three strain clamps are respectively and fixedly connected with the right yoke plate; the arcing ring 7 is fixedly connected with the right yoke plate 3; the hanging mechanism 5 comprises an EB hanging plate and a left connecting plate, wherein the left connecting plate is formed by connecting three connecting plates, the EB hanging plate is connected with a first connecting plate, the first connecting plate is respectively connected with a second connecting plate and a third connecting plate through right-angle hanging plates, and the second connecting plate and the third connecting plate are respectively vertical to the first connecting plate and are respectively positioned at two sides of the first left connecting plate; the insulators in the middle are connected with the middle of the second left connecting plate through the ball head hanging plate, and the insulators on the two sides are respectively connected with the two sides of the third connecting plate through the ball head hanging plate; the conducting rod 6-1 is fixedly connected with a second left connecting plate or a third connecting plate; a PT adjusting plate is arranged between the EB hanging plate and the first connecting plate; the PT adjusting plate is connected with the EB hanging plate through the right-angle hanging plate and is connected with the first connecting plate; the middle strain clamp 4 is fixedly connected with the right yoke plate through a cross hanging plate; the strain clamps 4 on the two sides are respectively connected with the right yoke plate; a PT adjusting plate and a DB adjusting plate are further arranged between the cross hanging plate and the strain clamp 4, the PT adjusting plate is connected with the cross hanging plate through a right-angle hanging plate, the PT adjusting plate is connected with the DB adjusting plate in a matched mode, and the DB adjusting plate is connected with the strain clamp 4 through a U-shaped hanging ring; a DB adjusting plate is further arranged between the right yoke plate and the strain clamp 4, the DB adjusting plate is connected with the right yoke plate 3 through a right-angle hanging plate, and the DB adjusting plate is connected with the strain clamp 4 through a U-shaped hanging ring; the strain clamp 4 comprises a clamp main body 4-1, a steel anchor 4-2, a drainage plate 4-3 and a drainage clamp 4-4, wherein the clamp main body 4-1 is a hollow aluminum alloy pipe and comprises a straight rod section and a crimping section, the steel anchor 4-2 comprises a hanging ring and an anchor rod, one end of the anchor rod 4-2 is a hollow blind pipe part, the other end of the anchor rod is a solid part, the solid part is fixedly connected with the hanging ring, the hollow blind pipe part penetrates through one end of the clamp main body and stretches into the clamp main body 4-1, a hollow pipe with hardness smaller than that of a carbon fiber composite core is arranged in the hollow blind pipe part, the hollow blind pipe is positioned in the straight rod section of the clamp main body 4-1, the solid part is positioned in the crimping section of the clamp main body 4-1, one end of the drainage plate 4-3 is fixed on the straight rod section of the wire clamp main body 4-1, the other end is connected with a drainage wire clamp 4-4.
Because of the limited text expression and the limitless specific structure, it is possible for those skilled in the art to make several improvements, modifications or changes without departing from the principles of the present invention, and to combine the above technical features in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present invention.
Claims (7)
1. The three-split-conductor tension string of the insulator is characterized by comprising a plurality of insulators and three tension clamps; the insulators and the strain clamps are horizontally distributed; the insulators are arranged in a row, a hanging mechanism is arranged at the left side end, a right yoke plate is arranged at the right side end, and the right yoke plate is connected with three strain clamps respectively; three strain clamps are uniformly distributed on the same vertical plane in a triangular shape, and the distance between two adjacent strain clamps is 450mm; the right connecting plate is provided with a grading ring and an arcing ring; the hanging mechanism is provided with a blocking body; the choke, the arcing ring and the equalizing ring are on the same straight line; the choke body is a conductive rod, an inductance coil is spirally wound on the conductive rod, and an insulating rubber ring is sleeved outside the inductance coil;
The strain clamp comprises a clamp main body, a steel anchor, a drainage plate and a drainage clamp, wherein the clamp main body is a hollow aluminum alloy pipe and comprises a straight rod section and a compression joint section, the steel anchor comprises a hanging ring and an anchor rod, one end of the anchor rod is a hollow blind pipe part, the other end of the anchor rod is a solid part, the solid part is fixedly connected with the hanging ring, the hollow blind pipe part penetrates through one end of the clamp main body and stretches into the clamp main body, the hollow blind pipe part is positioned in the straight rod section of the clamp main body, a hollow pipe with hardness smaller than that of a carbon fiber composite core is arranged in the hollow blind pipe part, the solid part is positioned in the compression joint section of the clamp main body, one end of the drainage plate is fixed on the straight rod section of the wire clamp main body, and the other end of the drainage plate is connected with the drainage clamp;
When the number of the insulators is two, the insulators are distributed side by side; the hanging mechanism comprises a plurality of hanging pieces, the hanging pieces are connected with the insulators in a one-to-one correspondence manner, and the insulator three-split conductor tension string is an insulator duplex double-hanging point three-split conductor tension string; the hanging piece comprises two U-shaped hanging plates, a parallel hanging plate and a ball head hanging plate, wherein the two U-shaped hanging plates, the parallel hanging plate and the ball head hanging plate are sequentially connected, and the ball head hanging plate is connected with the insulator; the conductive rod is fixedly connected with the ball head hanging plate; a DB adjusting plate and a PT adjusting plate are further arranged between the U-shaped hanging plate and the parallel hanging plate; the DB adjusting plate is connected with the U-shaped hanging plate, the DB adjusting plate is connected with the PT adjusting plate in a matched mode, and the PT adjusting plate is connected with the parallel hanging plate;
when the insulators are three, the insulators are distributed in a triangular mode; the mounting mechanism is respectively connected with three insulators, and the insulator three-split conductor strain string is an insulator three-connection single-hanging-point three-split conductor strain string; the mounting mechanism comprises an EB hanging plate and a left connecting plate, wherein the left connecting plate is formed by connecting three connecting plates, the EB hanging plate is connected with a first connecting plate, the first connecting plate is respectively connected with a second connecting plate and a third connecting plate through right-angle hanging plates, and the second connecting plate and the third connecting plate are respectively perpendicular to the first connecting plate and are respectively positioned at two sides of the first left connecting plate; the insulators in the middle are connected with the middle of the second left connecting plate through the ball head hanging plate, and the insulators on the two sides are respectively connected with the two sides of the third connecting plate through the ball head hanging plate; the conducting rod is fixedly connected with the second connecting plate or the point triple plate; a PT adjusting plate is arranged between the EB hanging plate and the first connecting plate; the PT regulating plate is connected with the EB hanging plate through the right-angle hanging plate, and the PT regulating plate is connected with the first yoke plate.
2. The insulator three-split conductor strain insulator-string of claim 1, wherein the right yoke plate is formed by connecting two yoke plates; the first connecting plate is connected with the two insulators through the bowl head hanging plate respectively, the first connecting plate is connected with the second connecting plate through the right-angle hanging plate, and the second connecting plate is perpendicular to the first lower connecting plate; the equalizing ring is fixedly arranged on the second connecting plate through a supporting frame; the three strain clamps are fixedly connected with the second linkage plate respectively; the arcing ring is fixedly connected with the first yoke plate.
3. The three-split conductor strain insulator string of claim 1, wherein the right yoke plate is a yoke plate, and is connected with three insulators through bowl head hanging plates respectively; the equalizing ring is fixedly arranged on the right yoke plate through a supporting frame, and three strain clamps are respectively and fixedly connected with the right yoke plate; the arcing ring is fixedly connected with the right yoke plate.
4. The insulator three-split conductor strain insulator string of claim 2, wherein the middle strain clamp is fixedly connected to the second yoke plate through the ZBD hanging plate; the strain clamps on two sides are fixedly connected with the second yoke plate through a third yoke plate, the third yoke plate is vertical to the second lower yoke plate, and the strain clamps on two sides are respectively fixedly connected with one end of the bottom of the third yoke plate; an extension pull rod and a DB adjusting plate are further arranged between the ZBD hanging plate and the strain clamp, the upper end of the extension pull rod is connected with the ZBD hanging plate through a right-angle pull plate, the lower end of the extension pull rod is connected with the DB adjusting plate, and the DB adjusting plate is connected with the strain clamp through a U-shaped connecting hanging ring; and a DB adjusting plate is further arranged between the third connecting plate and the strain clamp and is connected with the third connecting plate through a right-angle hanging plate, and the DB adjusting plate is connected with the strain clamp through a U-shaped hanging ring.
5. The insulator three-split conductor strain insulator string of claim 3, wherein the middle strain clamp is fixedly connected with the right yoke plate through the cross hanging plate; the strain clamps on the two sides are respectively connected with the right yoke plate; a PT adjusting plate and a DB adjusting plate are further arranged between the cross hanging plate and the strain clamp, the PT adjusting plate is connected with the cross hanging plate through a right-angle hanging plate, the PT adjusting plate is connected with the DB adjusting plate in a matched mode, and the DB adjusting plate is connected with the strain clamp through a U-shaped hanging ring; and a DB adjusting plate is further arranged between the right yoke plate and the strain clamp and connected with the right yoke plate through a right-angle hanging plate, and the DB adjusting plate is connected with the strain clamp through a U-shaped hanging ring.
6. The insulator triad conductor strain insulator string of claim 1, wherein the insulator is a 300kN disc insulator.
7. The three split conductor strain insulator string of claim 1, wherein the insulator is a 210kN disc insulator.
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| CN201910477030.4A CN110047630B (en) | 2019-06-03 | 2019-06-03 | Tension string of three split conductors of insulator |
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| CN201910477030.4A CN110047630B (en) | 2019-06-03 | 2019-06-03 | Tension string of three split conductors of insulator |
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| CN110047630B true CN110047630B (en) | 2024-05-24 |
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| CN105023658A (en) * | 2015-08-21 | 2015-11-04 | 江苏双汇孚泰电气有限公司 | Lightning protection triple tension insulator string |
| CN105469909A (en) * | 2015-12-30 | 2016-04-06 | 中国电力工程顾问集团西南电力设计院有限公司 | Strain insulator string equipped with five yoke plates and three suspension points and used for extra-high voltage direct current circuit |
| CN207116124U (en) * | 2017-09-18 | 2018-03-16 | 永固集团股份有限公司 | A kind of strain insulator-string |
| CN109066554A (en) * | 2018-08-27 | 2018-12-21 | 江苏捷凯电力器材有限公司 | A kind of high-intensitive six or the three hanging point wind resistance strain insulator-strings of UHVDC Transmission Lines |
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| CN105023658A (en) * | 2015-08-21 | 2015-11-04 | 江苏双汇孚泰电气有限公司 | Lightning protection triple tension insulator string |
| CN105469909A (en) * | 2015-12-30 | 2016-04-06 | 中国电力工程顾问集团西南电力设计院有限公司 | Strain insulator string equipped with five yoke plates and three suspension points and used for extra-high voltage direct current circuit |
| CN207116124U (en) * | 2017-09-18 | 2018-03-16 | 永固集团股份有限公司 | A kind of strain insulator-string |
| CN109066554A (en) * | 2018-08-27 | 2018-12-21 | 江苏捷凯电力器材有限公司 | A kind of high-intensitive six or the three hanging point wind resistance strain insulator-strings of UHVDC Transmission Lines |
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