CN206595546U - A kind of voltage protector with disconnector - Google Patents
A kind of voltage protector with disconnector Download PDFInfo
- Publication number
- CN206595546U CN206595546U CN201720290136.XU CN201720290136U CN206595546U CN 206595546 U CN206595546 U CN 206595546U CN 201720290136 U CN201720290136 U CN 201720290136U CN 206595546 U CN206595546 U CN 206595546U
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- CN
- China
- Prior art keywords
- voltage
- disconnector
- limiting element
- grading ring
- insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of voltage protector with disconnector, voltage protector includes insulation mandrel, insulation mandrel one end is connected with bearing the gold utensil of mechanical force, one end is connected with insulator pillar, at least provided with two voltage-limiting elements on the outside of insulation mandrel, grading ring is provided with the outside of second voltage-limiting element, the air gap of connecting is formed between two neighboring voltage-limiting element and between the second voltage-limiting element and grading ring, gold utensil, insulation mandrel, outside covered composite yarn overcoat after being combined into one with voltage-limiting element, voltage protector also includes the sub- pillar of insulator, counting component and disconnector, it is not only able to play a part of cross arm insulator support wire, the lightning protection level of circuit can also be improved using voltage-limiting element, even if gap of being struck by lightning is smaller or produces induced lightening thunderbolt etc., it can play a protective role, prevent circuit from damaging or breaking, and recordable lightning discharge number of times, it is simple in construction, it is easy for installation, compact, it is lightweight, cost is low.
Description
Technical field
The utility model belongs to electric distribution network overhead wire protection field, more particularly to a kind of voltage protection with disconnector
Device.
Background technology
China's distribution and transmission system need substantial amounts of cross arm insulator to support line conductor, and the resistance to thunder of insulator in itself
Level is limited.For the circuit using bare conductor, thunderbolt easily causes insulator arc-over, and follow-up power frequency continued flow can be caused
Line tripping, though circuit breaking problem is not resulted in, easy Damage to insulation and the trip-out rate for adding circuit, at present to this
Frequently with lightning protection measures be zinc oxide surge arresters or portable protective gaps, and with the expansion of insulated conductor usable floor area, insulated conductor
The weakness of itself is also displayed, i.e. thunderbolt must break, for insulated conductor thunderbolt must disconnection problem, the lightning protection taken at present arranges
If alms giver's " leading-type " and " blocking type ", power frequency arc root is transferred to by " leading-type " conventional measure to install special gold utensil
Burnt on special gold utensil, so as to protect wire to be burnt from damaging, " blocking type " conventional measure is to set up lightning conducter, installation circuit to keep away
Thunder device, reduction pole tower ground resistance etc., prevent the power frequency after lightning stroke flashover from continuing arc, fundamentally exclude wire and damage the factor burnt.
No matter which kind of mode is used, current lightning protection measures there is problems：Setting up lightning conducter can only be effective to direct lightning strike, and
Induced lightening lightning discharge and the less double hit thunder of double hit gap-ratio can not be prevented, existing porcelain-arm insulator is excessively stupid in addition
Weight, is easily broken and anti-pollution characteristic is poor, and composite sheath can solve this problem.
Utility model content
The purpose of this utility model is the defect for overcoming prior art there is provided a kind of voltage protector with disconnector,
Including insulation mandrel, insulation mandrel one end is connected with bearing the upper gold utensil of mechanical force, and upper gold utensil is used to support line conductor, another
End is connected with insulator pillar, at least provided with two voltage-limiting elements on the outside of insulation mandrel, is provided with the outside of the second voltage-limiting element
Connect the air gap, the upper gold are formed between pressure ring, two neighboring voltage-limiting element and between the second voltage-limiting element and grading ring
Outside covered composite yarn insulating coating after tool, insulation mandrel and voltage-limiting element are combined into one, the voltage protector also includes exhausted
The sub- pillar of edge, counting component and disconnector, described insulator pillar one end are connected by grading ring with the second voltage-limiting element, separately
One end is connected with counting component, and disconnector is provided with counter assembly, and the disconnector departs from mark with observability, departs from
It is bolted on the outside of device and is connected with lower gold utensil, the lower gold utensil is used to be fixedly mounted on cross-arm, the connection of disconnector one end
Naked copper wire is simultaneously connected by fixing hole bolt with insulating support, and the insulating support other end is fixed by socket equal by fixing hole
Between pressure ring and insulator pillar.Between first voltage-limiting element and the second voltage-limiting element, the second voltage-limiting element and grading ring
Connected by connection electrode, discharged by sparking electrode extraction potential to series connection the air gap, be not only able to play cross-arm
Insulator supports the effect of wire, and the lightning protection level of circuit can also be improved using voltage-limiting element body；After other voltage-limiting element
And then insulator pillar and disconnector, counting component are provided with, the double protection acted on thunderbolt is constituted, can also record
Number of lightning strokes, the lightning-arrest structure constituted typically by voltage-limiting element and insulation mandrel can meet to general thunderbolt and feel
The protective effect for answering thunder to be struck by lightning, if smaller consumed in the cut-out afterflow of above-mentioned lightning-arrest structure in double hit thunder gap also may be used outside scope
Protected that there is provided duplicate protection work by the second lightning protection structure subsequently constituted with insulator pillar and disconnector
With, and then further guarantee is provided to the protection of whole circuit.
Preferably, described voltage-limiting element includes the upper connection electrode being sequentially connected, zinc oxide resistance sheet, lower electric discharge electricity
Pole, upper connection electrode and lower sparking electrode are separately positioned on the two ends of zinc oxide resistance sheet, in addition to composite insulation outer coat, are combined
Upper connection electrode, zinc oxide resistance sheet are socketed on insulation mandrel by insulating coating after lower sparking electrode fixed Combination is integral,
Lower sparking electrode is used to constitute series connection the air gap, and series connection the air gap is used to bear system voltage.Described two voltage-limiting elements
Between and the second voltage-limiting element and grading ring between may make up series connection the air gap, drawn by the series connection the air gap of composition
Current potential is discharged.Grading ring lower end is connected with insulator pillar.
It is further preferred that voltage-limiting element uses 1:The form of 1 structure or the form using other ratios.Voltage-limiting element
It is that proportion structure is not limited, can be with identical, can also be different.
Preferably, voltage-limiting element, on insulation mandrel part and one end fitting assembly into carrying out integral die after an entirety,
One-shot forming.
It is further preferred that zinc oxide resistance sheet uses loop configuration, it is sleeved on insulation mandrel, and passes through connection electrode
Connection gold utensil and other structures.
It is further preferred that upper gold utensil and lower gold utensil can be monaural structure or hatch frame as needed.
It is further preferred that voltage protector length is between 200-800mm, maximum outside diameter size is in 100-300mm.
Beneficial aspects of the present utility model are：The protective effect to distribution line can be further improved, even if double hit thunder
Gap is consumed outside scope in the cut-out afterflow of zinc oxide resistance sheet, also can to ensuring that the complete of circuit is not damaged, in addition,
Lightweight using composite insulation outer coat small volume, antifouling property is good, simple in construction, easy for installation, furthermore, thunder can also be recorded
Discharge time is hit, the scientific research for overhead transmission line lightning protection provides service data.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description, embodiment is only this reality
With new one embodiment, for those of ordinary skill in the art, without having to pay creative labor, go back
Other embodiments can be obtained with reference to the accompanying drawings, also within protection domain of the present utility model.
Fig. 1 is the structural representation of voltage protector of the utility model with disconnector；
Fig. 2 is the structural representation of the utility model voltage-limiting element；
Fig. 3 is the planar structure schematic diagram of the utility model insulating support.
Reference：Gold under the upper gold utensils of 1-, 2- insulation mandrels, 3- series connection the air gap, 4- insulation columns, 5- bolts, 6-
Tool, 7- counting components, 8- disconnectors, 9- grading rings, 10- naked copper wires, 11- insulating support bolts, 12- insulating supports, 13- is exhausted
Edge support A fixing holes, 14- insulating support B fixing holes；15- voltage-limiting elements；16- composite insulation outer coats；The upper connection electrodes of 17-；
Sparking electrode under 18-；19- zinc oxide resistance sheets.
Embodiment
As shown in figure 1, a kind of voltage protector with disconnector disclosed in the utility model, successively including upper gold utensil 1,
Insulation mandrel 2, grading ring 9, insulator pillar 4, counting component 7, disconnector 8, lower gold utensil 6 and insulating support 12 are constituted, on
Portion outboard is provided with two voltage-limiting elements on gold utensil 1 and the connection integrated with insulator pillar 4 of insulation mandrel 2, insulation mandrel 2
15, voltage-limiting element is wrapped on insulation mandrel 2 using loop configuration, and the first voltage-limiting element is connected through a screw thread gold utensil 1, first
Between the voltage-limiting element of lower sparking electrode 18 and second of voltage-limiting element and the second voltage-limiting element lower sparking electrode 18 with pressing
Series connection the air gap 3, upper gold utensil 1 and outside after insulation mandrel 2, the integral compression molding of two voltage-limiting elements 15 are formed between ring 9
Die stamping insulation composite sheath 16.The structure connection of the one end of insulator pillar 4 and integrated molding, other end is connected with counting component
7, the lower end of counting component 7 is connected with disconnector 8, disconnector 8 departs from mark with observability, and disconnector 8 is connected by bolt 5
Lower gold utensil 6 is connected with insulator pillar 4 and in lower end, disconnector 8 is connected by naked copper wire 10 with insulating support 12, absolutely
The one end of edge support 12 connects naked copper wire 10 by A fixing holes 14 with bolt 11, and the other end is socketed in grading ring by B fixing holes
On insulator pillar 4 below 9.
Voltage-limiting element 15 includes the upper connection electrode 17 being sequentially connected, zinc oxide resistance sheet 19, lower sparking electrode 18, upper company
Receiving electrode 17 and lower sparking electrode 18 are separately positioned on the two ends of zinc oxide resistance sheet 19, in addition to composite insulation outer coat 16, multiple
Insulating coating 16 is closed by upper connection electrode 17, zinc oxide resistance sheet 19 is socketed in after the lower fixed Combination of sparking electrode 18 is integral
On insulation mandrel 2, lower sparking electrode 18 is used to constitute series connection the air gap 3, and series connection the air gap 3 is used to bear system voltage.
Series connection the air gap is may make up between described two voltage-limiting elements 15 and between the second voltage-limiting element 15 and grading ring 9, is passed through
The extraction potential of series connection the air gap 3 of composition is discharged.The lower end of grading ring 8 is connected with insulator pillar 4.Two voltage-limiting elements
Using 1:The form of 1 structure or the form using other ratios.
Part and one end fitting assembly be into integral die is carried out after an entirety on voltage-limiting element, insulation mandrel, once into
Type.
Zinc oxide resistance sheet uses loop configuration, is sleeved on insulation mandrel, and passes through connection electrode connection gold utensil and its
His structure.
Upper gold utensil and lower gold utensil can be monaural structure or hatch frame as needed.
Voltage protector length is between 200-800mm, and maximum outside diameter size is in 100-300mm.
Operation principle of the present utility model：The described voltage protector with disconnector when system is normally run, due to
Series gap is isolated, and voltage-limiting element is not subject to system operation voltage.In the sufficiently high induced lightening of amplitude or direct attack lightning voltage effect
Under, voltage-limiting element is in low resistance, and series gap is breakdown, and thunder energy is discharged by zinc oxide resistance sheet, after thunderbolt impact,
The voltage for being applied to voltage-limiting element body two ends is system operation voltage, and body is in high impedance, and power frequency continued flow electric arc is extremely short
Stop working in time, the air gap insulation is rapid to recover, and lower road returns to normal operating condition.When the gap by double hit thunder is less than electricity
The combining structure of time-consuming or insulation mandrel, zinc oxide resistance sheet and voltage-limiting element composition breaks down when hindering the cut-out afterflow of piece
When, then disconnector is acted in time, utilizes power frequency short circuit current flow so that speed heat resistor disc heating inside disconnector, ignites empty booster,
It is that disconnector earth terminal is automatically disengaged, the lightning arrester for combining the unit composition is out of service, prevents accident from further expanding, and give
The lightning arrester that is out of order is departed from observability to be identified, and is easy to attendant to find that trouble point is safeguarded and changed in time.
Claims (4)
1. a kind of voltage protector with disconnector, it is characterised in that：Including insulation mandrel (2), insulation mandrel (2) one end is with holding
It is connected by the upper gold utensil (1) of mechanical force, the other end is connected with insulator pillar (4), at least provided with two on the outside of insulation mandrel (2)
It is provided with the outside of voltage-limiting element (15), the second voltage-limiting element between grading ring (9), two neighboring voltage-limiting element (15) and the second limit
Connect the air gap (3), the upper gold utensil (1), insulation mandrel (2) and voltage-limiting element are formed between pressure element and grading ring (9)
(15) outside covered composite yarn insulating coating (16) after being combined into one, the voltage protector also include the sub- pillar of insulator (4),
Counting component (7) and disconnector (8), described insulator pillar (4) one end are connected by grading ring (9) with the second voltage-limiting element,
The other end is connected with counting component (7), and disconnector (8) is provided with counter assembly (7), and the disconnector is de- with observability
From mark, fixed on the outside of disconnector (8) by bolt (5) and be connected with lower gold utensil (6), disconnector (8) one end connection naked copper wire
(10) and by fixing hole (14) it is connected with bolt (11) with insulating support (12), insulating support (12) other end passes through fixing hole
(13) it is fixed by socket between grading ring (9) and insulator pillar (4).
2. the voltage protector according to claim 1 with disconnector, it is characterised in that：Described voltage-limiting element (15) bag
Include the upper connection electrode (17) being sequentially connected, zinc oxide resistance sheet (19), lower sparking electrode (18), in addition to composite insulation outer coat
(16), composite insulation outer coat (16) is by upper connection electrode (17), zinc oxide resistance sheet (19), lower sparking electrode (18) fixed Combination
It is socketed in after integral on insulation mandrel (2), the composite insulation outer coat (16) can be using integral die, one-shot forming, its
In the second voltage-limiting element by lower sparking electrode (18) and grading ring structure (9) into the air gap of connecting, the insulation of grading ring (9) lower end
Sub- pillar (4) is connected.
3. the voltage protector according to claim 1 with disconnector, it is characterised in that：The upper gold utensil (1) and lower gold
It can be monaural structure or hatch frame as needed to have (6).
4. the voltage protector according to claim 1 with disconnector, it is characterised in that：Described voltage protector length
Between 200-800mm, maximum outside diameter size is in 100-300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290136.XU CN206595546U (en) | 2017-03-23 | 2017-03-23 | A kind of voltage protector with disconnector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720290136.XU CN206595546U (en) | 2017-03-23 | 2017-03-23 | A kind of voltage protector with disconnector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206595546U true CN206595546U (en) | 2017-10-27 |
Family
ID=60122637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720290136.XU Expired - Fee Related CN206595546U (en) | 2017-03-23 | 2017-03-23 | A kind of voltage protector with disconnector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206595546U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365519A (en) * | 2018-02-07 | 2018-08-03 | 国网湖北省电力有限公司电力科学研究院 | A kind of transmission line of electricity overvoltage protection |
| CN113113200A (en) * | 2021-04-14 | 2021-07-13 | 山东迅实电气有限公司 | Lower anchor voltage limiter for urban rail transit contact net |
-
2017
- 2017-03-23 CN CN201720290136.XU patent/CN206595546U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365519A (en) * | 2018-02-07 | 2018-08-03 | 国网湖北省电力有限公司电力科学研究院 | A kind of transmission line of electricity overvoltage protection |
| CN108365519B (en) * | 2018-02-07 | 2023-12-19 | 国网湖北省电力有限公司电力科学研究院 | Overvoltage protection device for power transmission line |
| CN113113200A (en) * | 2021-04-14 | 2021-07-13 | 山东迅实电气有限公司 | Lower anchor voltage limiter for urban rail transit contact net |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20210323 |