CN201117373Y - Line insulator lightning protection overvoltage protector - Google Patents
Line insulator lightning protection overvoltage protector Download PDFInfo
- Publication number
- CN201117373Y CN201117373Y CNU2007201491379U CN200720149137U CN201117373Y CN 201117373 Y CN201117373 Y CN 201117373Y CN U2007201491379 U CNU2007201491379 U CN U2007201491379U CN 200720149137 U CN200720149137 U CN 200720149137U CN 201117373 Y CN201117373 Y CN 201117373Y
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- Prior art keywords
- gap ball
- ball
- current limiting
- lightning protection
- limiting element
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Abstract
The utility model relates to a line insulator lightning protection overvoltage protector, comprising a static gap ball, a dynamic gap ball, a current limiting element and a pillar plate. A gap is between the two gap balls. The static gap ball is provided with a connecting device which is used for connecting with an insulating lead. The current limiting element is installed in the main body of a protector. The two ends of the current limiting element are separately in electric connection with electroconductive plates which are arranged on the dynamic gap ball and the pillar plate. The upper part of the main body of the protector is connected with the dynamic gap ball by the adjustable support of the dynamic gap ball, and the lower part is fixedly installed on the pillar plate. The upper pole and the lower installing pole of the main body of the protector and the adjustable support are all made of metal, in order to accomplish the electric connection of the current limiting element with the dynamic gap ball and the electroconductive plate on the pillar pole. The protector has simple structure and low cost, and is convenient to be installed. The ball gap can be convenient to be adjusted according to the practical needs. The protector is mainly used for the lighting protection of the overhead insulating lead in the urban distribution network.
Description
Technical field
The utility model relates to a kind of line insulator lightning protection overvoltage protection device, is mainly used in strick precaution urban power distribution network suspended insulated guide wire circuit and suffers lightning damage.
Technical background
The existing thunderbolt precautionary technology that is used for the distribution network insulated conductor mainly contains " dredging " and " obstruction " dual mode.So-called " dredging " is exactly with near the local bare wireization of the insulated conductor the insulator; making power frequency arc arc root shift or be fixed on the special gold utensil burns; thereby guardwire avoids burn; for example insulating barrier employing arc protection molded lines folder is peeled off at insulator and wire coupling place by Finland; the Sweden and the U.S. peel off the insulated conductor of insulator both sides one section insulating barrier and install the preventing arc wire clamp additional; simple to operate, the small investment of this class technology; but it is local exposed; the defective that has sealing and insulation aspect, and line clamping device is easy to break down because of anti-seismic performance is relatively poor.So-called " obstructions " is exactly to stop the power frequency continued flow starting the arc, for example a large amount of employing of Japan line insulator lightning protection overvoltage protection devices, i.e. sphere gap metal zinc oxide lightning arresters behind the lightning stroke flashover; but its complex structure; the cost height is installed inconvenience, and sphere gap is regulated also cumbersome.
The utility model content
For overcoming the above-mentioned defective of prior art, the utility model provides a kind of line insulator lightning protection overvoltage protection device, and this protector structure is simple, and cost is low, and is easy for installation, and can carry out the adjusting of sphere gap according to actual needs easily.
The utility model realizes that the technical scheme of above-mentioned purpose is: a kind of line insulator lightning protection overvoltage protection device; comprise quiet gap ball; moving gap ball; current limiting element and pillar plate; leave the gap between the described two gap balls; described quiet gap ball is provided with the jockey that is used for the insulated conductor connection; described current limiting element is installed in the protector main body; its two ends are electrically connected with the conductive plate on described moving gap ball and the described pillar plate respectively; the upper end of described protector main body connects with the adjustable support of described moving gap ball by moving gap ball, and the lower end is fixedly mounted on the described pillar plate.
Operation principle of the present utility model and beneficial effect are: quiet gap ball is positioned on the insulated conductor on the insulator, pillar plate one end is connected in the insulator bottom, form the relation in parallel between current limiting element and the insulator, suitably regulate the gap of moving between gap ball and the quiet gap ball by adjustable support, when circuit is subjected to being struck by lightning, when induction overvoltage does not reach insulator arc-over as yet, both begun by the gap discharge between the two gap balls, lightning current discharges through current limiting element, power frequency continued flow is then blocked by current limiting element, thereby avoid the generation of insulated overhead line lightning-caused breaking accident, reach the purpose of " taking shelter from the thunder ".Nonlinear current limiting element can keep one usually said " residual voltage " in the discharge process, can oneself extinguish power frequency continued flow under lightning voltage system's power-frequency voltage later, makes not decompression of system, has avoided the generation of system's decompression and relaying protection would trip situation.This protector structure is simple, and cost is low, and it is installed and adjustment structure all can adopt the mode of threaded engagement to realize, installation and adjusting are got up very convenient.
Description of drawings
Fig. 1 is the structural representation of the utility model band part section.
Embodiment
Referring to Fig. 1; the utility model provides a kind of line insulator lightning protection overvoltage protection device; comprise quiet gap ball 5; moving gap ball 6; current limiting element 13 and pillar plate 1; leave the gap between the described two gap balls; described quiet gap ball is provided with the jockey that is used for the insulated conductor connection; described current limiting element is installed in the protector main body; its two ends are electrically connected with the conductive plate on described moving gap ball and the described pillar plate respectively; the upper end of described protector main body connects with the adjustable support of described moving gap ball by moving gap ball, and the lower end is fixedly mounted on the described pillar plate.
Described quiet gap ball and moving gap ball are sphere usually, and diameter is greater than connector direct-connected with it.Also can adopt various tabular, block or bar-shaped etc.The opposite face of two gap balls (discharge face) is generally the cambered surface of projection, also can be plane etc.
Described adjusting rod is used to connect an end that moves the gap ball and is fixed with a nut, and described moving gap ball is provided with the short screw that screws togather with this nut, realizes that thus moving gap ball is with the connection between the adjusting rod.
Described current limiting element can adopt the nonlinear resistance that is formed by the folded system of some resistor valve sheets, and described resistor valve sheet is generally the ZnO resistors valve block, and after voltage reached certain threshold value, resistor valve sheet " conducting " formed discharging current.Can change voltage threshold by the quantity that changes resistor valve sheet.Current limiting element by selecting different qualities and regulate the discharge voltage threshold value that the gap just can obtain suiting between the two gap balls.
Described protector main body mainly comprises insulation crust 14; described insulation crust adopts composite material to make; be provided with the cavity that is used to hold described current limiting element; the two ends of shell are installed with mounting rod 12 and following mounting rod 15 respectively; described inner end of going up mounting rod and following mounting rod is connected with the two ends up and down of described current limiting element respectively; the outer end is equipped with screw thread; wherein go up mounting rod and tighten together by nut 11 and described pillar plate, following mounting rod tightens together by the adjustable support of nut and described moving gap ball.
The two ends of described protector main body cover can also be respectively equipped with the disk 16 that is used to seal its cavity both ends open, are equipped with through hole in the middle of the described disk, are used to pass corresponding mounting rod.
The adjustable support of described moving gap ball can comprise sleeve pipe 8 and the adjusting rod 7 that cooperatively interacts, one end of described adjusting rod connects described moving gap ball, the other end is provided with external screw thread, and inserts described sleeve pipe from an end of described sleeve pipe, and described sleeve pipe is provided with the nut that screws togather with described adjusting rod.The rotation adjusting rod is exactly to change the length that adjusting rod is exposed at the cover tube outside, just changes the total length of adjustable support on the adjusting rod bearing of trend, and then changes the front and back position of moving gap ball.
The other end of described sleeve pipe is connected with fixed connecting piece 10 by horizontal (referring to vertical with the sleeve pipe center line here) bolt 9.Usually, this link of described sleeve pipe is provided with the breach of a longitudinal extension, and the corresponding link of described fixed connecting piece is inserted in this breach.After unclamping the nut that is fastened on the described cross bolts, just can regulate the angle of sleeve pipe, and then regulate the moving position of ball on the sleeve pipe swaying direction, gap.
By above-mentioned two kinds of regulative modes, can be as required front and back and up and down the moving gap of both direction adjusted ball with respect to the position of quiet gap ball.
Described fixed connecting piece can be made of a level board and a swash plate of being connected as a single entity usually, and described level board is the part that directly links to each other with described protector main body on the adjustable support, is provided with the through hole that the last mounting rod for the protector main body passes.Be screwed in nut on the mounting rod be pressed in this level board above, adjustable support is tightened together with the protector main body.Described swash plate is upturned from the junction with level board, and its plate face is vertical with level board plate face.Adopt the structure of this perk can improve the position of moving the gap ball, guarantee to be higher than quiet gap ball after moving gap ball is installed, be beneficial to discharge.
The jockey of described quiet gap ball is anchor ear 4 normally, with simplified structure and convenient the installation.Usually, should be positioned at insulated conductor 3 tops after the quiet gap ball installation.
Described pillar plate can be positioned at top conductive plate and one by one and be positioned at following mounting panel and form, so that realize being electrically connected by conductive plate, mounting panel then can adopt non-conducting material.
Described protector main body is installed in a side of described pillar plate usually, and the opposite side edge of described pillar plate is provided with an opening that is used for the cooperation of insulator 2 construction bolts.After the installation, protector main body and insulator lay respectively at the both sides of pillar plate.
The described each several part of going up mounting rod, following mounting rod and adjustable support all can adopt metal to make, so that realize that when realizing corresponding mechanical connection the current limiting element two ends are with the electrical connection between the conductive plate on described moving gap ball and the described pillar plate, that is to say, mounting rod is gone up and described adjustable support is electrically connected described moving gap ball by described in the upper end of described current limiting element, and the lower end is electrically connected conductive plate on the described pillar plate by described mounting rod down.
Mounting means of the present utility model is:
The first step: protector main body and moving gap ball stand are coupled together, will move the gap ball and be installed on the ball stand of moving gap, forms an integral body, and the following mounting rod that passes through the protector main body with this integral installation on the pillar plate;
Second step: the lower nut of insulator is unclamped, the opening of pillar plate is inserted and tightens;
The 3rd step: quiet gap ball is installed on the lead of insulator top with anchor ear;
The 4th step: regulate as required moving gap ball up and down and front and back position.
Claims (10)
1. line insulator lightning protection overvoltage protection device; comprise quiet gap ball, moving gap ball; leave the gap between the described two gap balls; it is characterized in that also comprising current limiting element and pillar plate; described quiet gap ball is provided with the jockey that is used for the insulated conductor connection; described current limiting element is installed in the protector main body; its two ends are electrically connected with the conductive plate on described moving gap ball and the described pillar plate respectively; the upper end of described protector main body connects with the adjustable support of described moving gap ball by moving gap ball, and the lower end is fixedly mounted on the described pillar plate.
2. line insulator lightning protection overvoltage protection device as claimed in claim 1 is characterized in that described current limiting element adopts the nonlinear resistance that is formed by the folded system of some resistor valve sheets.
3. line insulator lightning protection overvoltage protection device as claimed in claim 2 is characterized in that described quiet gap ball and moving gap ball are sphere, and diameter is greater than connector direct-connected with it.
4. line insulator lightning protection overvoltage protection device as claimed in claim 3; it is characterized in that moving gap ball is that the end that described adjusting rod is used to connect moving gap ball is fixed with a nut with the connected mode between the adjusting rod; described moving gap ball is provided with the short screw that screws togather with this nut, and the jockey of described quiet gap ball is an anchor ear.
5. as claim 1; 2; 3 or 4 described line insulator lightning protection overvoltage protection devices; it is characterized in that described protector main body mainly comprises insulation crust; described insulation crust is provided with the cavity that is used to hold described current limiting element; the two ends of shell are installed with mounting rod and following mounting rod respectively; described inner end of going up mounting rod and following mounting rod is connected with the two ends up and down of described current limiting element respectively; the outer end is equipped with screw thread; wherein go up mounting rod and tighten together by nut and described pillar plate, following mounting rod tightens together by the adjustable support of nut and described moving gap ball.
6. line insulator lightning protection overvoltage protection device as claimed in claim 5; the two ends that it is characterized in that described protector main body cover also are respectively equipped with the disk that is used to seal its cavity both ends open, are equipped with the through hole that is used to pass corresponding mounting rod in the middle of the described disk.
7. line insulator lightning protection overvoltage protection device as claimed in claim 6; mounting rod is gone up and described adjustable support is electrically connected described moving gap ball by described in the upper end that it is characterized in that described current limiting element, and the lower end is electrically connected conductive plate on the described pillar plate by described mounting rod down.
8. as claim 1,2,3 or 4 described line insulator lightning protection overvoltage protection devices; the adjustable support that it is characterized in that described moving gap ball comprises sleeve pipe and the adjusting rod that cooperatively interacts; one end of described adjusting rod connects described moving gap ball; the other end is provided with external screw thread; and insert described sleeve pipe from an end of described sleeve pipe; described sleeve pipe is provided with the nut that screws togather with described adjusting rod, and the other end of described sleeve pipe is connected with fixed connecting piece by cross bolts.
9. line insulator lightning protection overvoltage protection device as claimed in claim 8; it is characterized in that described fixed connecting piece is made of a level board and a swash plate of being connected as a single entity; described level board is provided with the through hole that the last mounting rod for the protector main body passes; described swash plate is upturned from the junction with level board, and its plate face is vertical with level board plate face.
10. as claim 1,2,3 or 4 described line insulator lightning protection overvoltage protection devices; it is characterized in that described pillar plate is positioned at top conductive plate and one by one and is positioned at following mounting panel and forms; described protector main body is installed in a side of described pillar plate, and the opposite side edge of described pillar plate is provided with an opening that is used for the cooperation of insulator construction bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201491379U CN201117373Y (en) | 2007-05-15 | 2007-05-15 | Line insulator lightning protection overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201491379U CN201117373Y (en) | 2007-05-15 | 2007-05-15 | Line insulator lightning protection overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117373Y true CN201117373Y (en) | 2008-09-17 |
Family
ID=39991951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201491379U Expired - Fee Related CN201117373Y (en) | 2007-05-15 | 2007-05-15 | Line insulator lightning protection overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117373Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354587A (en) * | 2011-08-09 | 2012-02-15 | 王哲斐 | Lightning protection suspension insulator of contact network |
| CN102354588A (en) * | 2011-08-09 | 2012-02-15 | 王哲斐 | Lightning protection supporting insulator for contact network |
| CN106981346A (en) * | 2017-04-14 | 2017-07-25 | 山东莱芜电瓷有限公司 | A kind of fixed interval (FI) Zinc-Oxide Arrester |
-
2007
- 2007-05-15 CN CNU2007201491379U patent/CN201117373Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354587A (en) * | 2011-08-09 | 2012-02-15 | 王哲斐 | Lightning protection suspension insulator of contact network |
| CN102354588A (en) * | 2011-08-09 | 2012-02-15 | 王哲斐 | Lightning protection supporting insulator for contact network |
| CN106981346A (en) * | 2017-04-14 | 2017-07-25 | 山东莱芜电瓷有限公司 | A kind of fixed interval (FI) Zinc-Oxide Arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20120515 |