CN205610158U - Insulated line overvoltage protector - Google Patents
Insulated line overvoltage protector Download PDFInfo
- Publication number
- CN205610158U CN205610158U CN201620354714.7U CN201620354714U CN205610158U CN 205610158 U CN205610158 U CN 205610158U CN 201620354714 U CN201620354714 U CN 201620354714U CN 205610158 U CN205610158 U CN 205610158U
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- China
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- overvoltage protector
- insulator
- metal rack
- insulated circuit
- gold utensil
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Abstract
The utility model provides an insulated line overvoltage protector, includes the arrester, insulator, metal support to and clamp line gold utensil, the other fixed connection of lower tip of zinc oxide arrester and insulator in the metal support both ends, press from both sides the line gold utensil connect in the insulator upper end still includes starting rod and striking cap, the striking cap is located arrester top portion, starting rod one end connect in press from both sides the line gold utensil, other end trend arrester top portion extend and with a striking cap formation series gap. The arrester excellent clearance of establishing ties outward among this overvoltage protector, the influence that changes of wind -engaging pendulum, winter and summer wire in season of gap discharge, overvoltage protection stable performance, in the thunderbolt or during the power frequency excessive pressure, lightning protection ware gap discharge, the voltage injection the earth will be crossed in the arrester action, and in the normal work, power frequency voltage is kept apart by the clearance, and the protector does not bear and lasts power frequency continuous current, is in " rest " state, is difficult for arousing ageing, and the live time is long, and is with low costs.
Description
Technical field
This utility model belongs to insulated circuit protection field, is specifically related to a kind of insulated circuit overvoltage protector.
Background technology
China's electric power is in developing rapidly, and transmission line lightning stroke problem is more and more prominent, has had a strong impact on normal grid supply quality.Due to transmission of electricity, distribution line exists the electric mounting position that a large amount of resistance to thunderbolt is not enough, it is difficult to directly bear thunderbolt, struck off wire, insulator demolition, full skirt the phenomenon such as hardening crack because of arcing and have become as the technical barrier that power system faces.The major measure of overhead distribution lightning protection the most both at home and abroad has: sets up overhead ground wire, mounting clamp clamp insulator, install overvoltage protection device on pillar insulator, load side dress arc-preventing metal utensil.Overvoltage protector is by a metal oxide arrester of connecting with insulator; although this mode plays anti-lightning overvoltage effect; but spark gap bears power-frequency overvoltage effect for a long time; that the most also wants interval bears lightning surge and power frequency continued flow effect; the most aging; fault is many, and replacement cost is high.If because super-high-current is by spark gap, causing spark gap to hold and dare not accept and damage, cause short circuit grounding, cause insulated cable to break.
Summary of the invention
Problem to be solved in the utility model is: provide a kind of insulated circuit overvoltage protector.
For solving the problems referred to above, the technical scheme that this utility model provides is: a kind of insulated circuit overvoltage protector, including spark gap, insulator, metal rack, and clamp gold utensil, the bottom of described Zinc-Oxide Arrester and insulator is fixedly connected on described metal rack two ends respectively, described clamp gold utensil is connected to described insulator upper end, in the technical program, also include starting rod and striking cap, described spark gap top ends is located at by described striking cap, described starting rod one end is connected to described clamp gold utensil, the other end tends to spark gap top ends and extends and form a series gap with described striking cap.Connecting outside spark gap in this overvoltage protector nod gap, the maximum advantage of gap discharge is the most not wind-engaging pendulum, the impact of winter and summer wire change, and overvoltage protective property is stable；When thunderbolt or power frequency overvoltage; anti-lightening protector gap discharge; lightning arrestor movement, introduces the earth, in normal work by overvoltage; power-frequency voltage is isolated by gap; protector is not subject to lasting power frequency continued flow, is in " rest " state, reduces spark gap degree of aging; increase the service life, thus reduce use cost.
Further, described clamp gold utensil includes that tension seat and wire pressing block, described starting rod one end are connected to described tension seat.
Further, described metal rack includes the two parts regulated that can misplace up and down, is bolted to connection between them, and on described metal rack, the installing hole of corresponding described bolt is mounting hole.Metal rack is fixed by dismountable bolt, and bolt mounting holes is mounting hole, facilitates metal rack two parts can misplace up and down regulation, simple in construction, it is simple to the adjustment of series gap spacing.
Further, described starting rod is continuous print transverse arm section and oblique curved segment, and the bulb at described oblique curved segment top forms series gap with described striking cap.
Further, described series gap spacing is 70～100mm.
Further, described spark gap is zero-clearance zinc oxide lightning arrester, and it can give full play to the non-linear behavior of zinc oxide resistance sheet, overcomes the electric arc of discharge that pure clearance lightning-proof protector exists, easily burns clearance electrode, blows the problems such as wire.
Further, described metal rack connects a ground terminal, and described ground terminal ground connects.
Further, the bottom of described spark gap and insulator is all secured by bolts in described metal rack two ends, and bolt mounting holes corresponding to described metal rack at least one end is mounting hole.
The utility model has the advantages that:
1, connecting outside this overvoltage protector spark gap nod gap, gap discharge is the most stable, and the advantage of its maximum is the most not wind-engaging pendulum, the impact of winter and summer wire change, and overvoltage protective property is stable；When thunderbolt or power frequency overvoltage, gap discharge lightning arrestor movement, overvoltage is introduced the earth, when normally working; power-frequency voltage is isolated by gap, and protector is not subject to lasting power frequency continued flow, is in " rest " state; reduce spark gap degree of aging, increase the service life, thus reduce use cost.
2, apparatus structure is simple; spark gap and insulator are fixed on metal rack by bolt mode; and bolt hole is mounting hole, it is simple to spark gap and the regulation of insulator spacing, metal rack is bolted by dismountable two parts in addition; bolt mounting holes is mounting hole; facilitating two parts to misplace up and down movement, it is simple to the regulation of series gap spacing, protector structure is simple; stable performance, convenient installation.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment
Fig. 1 is the structural representation of this insulated circuit overvoltage protector.
Wherein: 1. spark gap；2. insulator；3. metal rack；4. clamp gold utensil；41. tension seats；42. wire pressing blocks；5. starting rod；6. striking cap；7. series gap；8. steel foot.
Detailed description of the invention
Embodiment 1: insulated circuit overvoltage protector as shown in Figure 1; including spark gap 1; insulator 2; metal rack 3, clamp gold utensil 4, starting rod 5; striking cap 6; spark gap 1 lower end is fixedly connected on described metal rack 3 one end, and described insulator 2 lower end is provided with steel foot 8, and described insulator 2 is fixed on described metal rack 3 other end by steel foot 8.The bottom of described spark gap 1 and insulator 2 is all secured by bolts in described metal rack 3 two ends, and bolt mounting holes corresponding to described metal rack 3 at least one end is mounting hole.Clamp gold utensil 4 is connected to described insulator 2 upper end.Described spark gap 1 top ends is located at by striking cap 6.Starting rod 5 one end is connected to described clamp gold utensil 4, and the other end tends to spark gap 1 top ends and extends and form a series gap 7 with described striking cap 6.Clamp gold utensil 4 includes tension seat 41 and wire pressing block 42, and insulated conductor is arranged between tension seat 41 and wire pressing block 42, and described starting rod 5 one end is connected on described tension seat 41.Metal rack 3 includes the two parts regulated that can misplace up and down, is bolted between them, and on described metal rack 3, the installing hole of corresponding described bolt is mounting hole, and metal rack 3 connects a ground terminal, and described ground terminal ground connects.In this example, starting rod 5 is in continuous print transverse arm section and oblique curved segment, and the bulb at described oblique curved segment top and described striking cap 6 form series gap 7.Series gap 7 spacing is 70～100mm.Spark gap 1 is zero-clearance zinc oxide lightning arrester.
When circuit is affected by lightning impulse overvoltage or power-frequency overvoltage; can be before overvoltage reaches the critical point of insulator 2 flashover; the series gap 7 of overvoltage protector discharges; zero-clearance zinc oxide lightning arrester 1 action; by connected metal rack 3 and the ground terminal (being not drawn in figure) that is connected with metal rack 3, overvoltage is introduced the earth, it is ensured that insulator 2 and the normal work of insulated conductor.In normal work, power-frequency voltage is isolated by series gap 7, and overvoltage protector is not subject to lasting power frequency continued flow, is in " rest " state, it is ensured that power system properly functioning, also reduces spark gap degree of oxidation simultaneously, extends its service life.
Examples detailed above is only for illustrating technology of the present utility model design and feature, and its object is to allow person skilled in the art is to will appreciate that content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations done according to this utility model spirit or modification, all should contain within protection domain of the present utility model.
Claims (8)
1. an insulated circuit overvoltage protector, including spark gap (1), insulator (2), metal rack (3), and clamp gold utensil (4), the bottom of described spark gap (1) and insulator (2) is individually fixed in described metal rack (3) two ends, described clamp gold utensil (4) is connected to described insulator (2) upper end, it is characterized in that, also include starting rod (5) and striking cap (6), described striking cap (6) is located at described spark gap (1) top ends, described starting rod (5) one end is connected to described clamp gold utensil (4), the other end tends to spark gap (1) top ends and extends and form a series gap (7) with described striking cap (6).
Insulated circuit overvoltage protector the most according to claim 1; it is characterized in that; described clamp gold utensil (4) includes tension seat (41) and wire pressing block (42), and described starting rod (5) one end is connected on described tension seat (41).
Insulated circuit overvoltage protector the most according to claim 1; it is characterized in that; described metal rack (3) includes the two parts regulated that can misplace up and down; being bolted to connection between them, the installing hole of the upper corresponding described bolt of described metal rack (3) is mounting hole.
Insulated circuit overvoltage protector the most according to claim 1; it is characterized in that; described starting rod (5) is in continuous print transverse arm section and oblique curved segment, and the bulb at described oblique curved segment top forms series gap (7) with described striking cap (6).
5. according to the insulated circuit overvoltage protector described in claim 1 or 4, it is characterised in that, described series gap (7) spacing is 70～100mm.
Insulated circuit overvoltage protector the most according to claim 1, it is characterised in that, described spark gap (1) is zero-clearance zinc oxide lightning arrester.
7., according to the insulated circuit overvoltage protector described in claim 1 or 3, it is characterised in that described metal rack (3) connects a ground terminal, described ground terminal ground connects.
Insulated circuit overvoltage protector the most according to claim 1; it is characterized in that; the bottom of described spark gap (1) and insulator (2) is all secured by bolts in described metal rack (3) two ends, and bolt mounting holes corresponding to described metal rack (3) at least one end is mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620354714.7U CN205610158U (en) | 2016-04-22 | 2016-04-22 | Insulated line overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620354714.7U CN205610158U (en) | 2016-04-22 | 2016-04-22 | Insulated line overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205610158U true CN205610158U (en) | 2016-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620354714.7U Active CN205610158U (en) | 2016-04-22 | 2016-04-22 | Insulated line overvoltage protector |
Country Status (1)
| Country | Link |
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| CN (1) | CN205610158U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899797A (en) * | 2018-06-15 | 2018-11-27 | 中国电力科学研究院有限公司 | The device and method for controlling the potential transfer electric current and electric arc of extra-high voltage electrified operation |
| CN112366063A (en) * | 2020-10-17 | 2021-02-12 | 国网山东省电力公司淄博供电公司 | Lightning protection transformer and transformer lightning protection method |
-
2016
- 2016-04-22 CN CN201620354714.7U patent/CN205610158U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899797A (en) * | 2018-06-15 | 2018-11-27 | 中国电力科学研究院有限公司 | The device and method for controlling the potential transfer electric current and electric arc of extra-high voltage electrified operation |
| CN112366063A (en) * | 2020-10-17 | 2021-02-12 | 国网山东省电力公司淄博供电公司 | Lightning protection transformer and transformer lightning protection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |