CN109448939A - A kind of tension-resistant rod external series gap metal oxide arrester - Google Patents
A kind of tension-resistant rod external series gap metal oxide arrester Download PDFInfo
- Publication number
- CN109448939A CN109448939A CN201811568624.8A CN201811568624A CN109448939A CN 109448939 A CN109448939 A CN 109448939A CN 201811568624 A CN201811568624 A CN 201811568624A CN 109448939 A CN109448939 A CN 109448939A
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- China
- Prior art keywords
- sheath
- outside
- ball stud
- metal oxide
- core
- 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.)
- Pending
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Classifications
-
- 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
-
- 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
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/16—Resistor networks not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors; Arresters
- H01C7/123—Arrangements for improving potential distribution
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/16—Series resistor structurally associated with spark gap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
- H01T4/14—Arcing horns
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
本发明公开了一种耐张杆外串联间隙金属氧化物避雷器，包括芯体、绝缘外护套，芯体外侧设置绝缘外护套，芯体内部空间由一端向另一端依次设置有上电极、电阻片、放电电极、绝缘柱、下电极，上电极、下电极分别设置在芯体内部的两端部；上电极上连接有穿出于芯体和绝缘外护套外的安装用紧定螺钉，放电电极上连接有穿出于芯体和绝缘外护套外的连接螺栓，下电极上连接有接线螺柱、球头螺栓，接线螺柱分别与穿出于芯体和绝缘外护套外的球头螺栓、绝缘线相连；在连接螺栓、球头螺栓的外侧设置有连接螺栓护套、球头螺栓护套，连接螺栓护套、球头螺栓护套均一体连接于绝缘外护套上。本发明可靠性高、故障率低，维护工作量少。The invention discloses a metal oxide lightning arrester with a series-proof gap outside the tension bar, which comprises a core body and an outer sheath of insulation. The outer sheath of the core body is provided with an outer sheath. The inner space of the core body is provided with an upper electrode from one end to the other end. The resistor sheet, the discharge electrode, the insulating column, the lower electrode, the upper electrode and the lower electrode are respectively disposed at both ends of the inner portion of the core body; and the mounting screws for mounting outside the core body and the insulating outer sheath are connected to the upper electrode The discharge electrode is connected with a connecting bolt which is worn outside the core body and the outer sheath of the insulation, and the connecting stud and the ball stud bolt are connected to the lower electrode, and the connecting stud is respectively worn outside the core body and the outer insulating sheath. Ball studs and insulated wires are connected; a connecting bolt sheath and a ball stud sheath are arranged on the outer side of the connecting bolt and the ball stud bolt, and the connecting bolt sheath and the ball stud bolt sheath are integrally connected to the insulating outer sheath. . The invention has high reliability, low failure rate and less maintenance workload.
Description
Technical field
The invention belongs to power transmission and distribution electrical equipment technical fields, particularly relate to a kind of tension-resistant rod external series gap metal
Oxide Arrester.
Background technique
As power matching network route constantly lengthens, insulating design is popularized, and damage to crops caused by thunder causes line-outage contingency to highlight, insulator
Breakdown accident statistical magnitude constantly rises, and has seriously threatened distribution network line safe operation.Arrester is that one kind is connected in parallel on electrically
Protection equipment in equipment, as the inter space device being artificially arranged in route or equipment, under normal working voltage
In isolated insulation state, the breakdown ground connection of inter space device is under overvoltage with decompression of discharging, to play protection under overvoltage
Route perhaps apparatus insulated effect its be also sometimes referred to as over-voltage protector or overvoltage limiter；Arrester is usual
It is connected between power grid conducting wire and ground wire, however is also connected to electric appliance winding side or conducting wire sometimes.Currently, existing arrester is deposited
In following disadvantage: insulator can not be effectively prevent by lightning surge impact failure, it can not effective protection insulated conductor
By lightning-caused breaking, and it is main be existing arrester reliability is low, high failure rate, so as to cause maintenance workload
It is various.
Summary of the invention
The present invention addresses the above problem, makes up the deficiencies in the prior art, provides one kind and is mainly used for power transmission and distribution electric power
Tension-resistant rod in system and for protecting electrical equipment and electric line to damage from atmospheric over-voltage and switching overvoltage
External series gap metal oxide arrester is a kind of overvoltage protection.
To achieve the above object, the present invention adopts the following technical scheme that.
A kind of tension-resistant rod external series gap of the invention metal oxide arrester, it is characterised in that: outer including core, insulation
Sheath, is arranged insulating outer protective cover on the outside of the core, core inner space be disposed with from one end to the other end top electrode,
Resistor disc, discharge electrode, insulated column, lower electrode, the top electrode, lower electrode are separately positioned on the both ends inside core；
The installation holding screw being piercing in outside core and insulating outer protective cover is connected in the top electrode, on the discharge electrode
It is connected with the connection bolt being piercing in outside core and insulating outer protective cover, Binding post/stud, bulb spiral shell are connected on the lower electrode
Bolt, the Binding post/stud are connected with ball stud, the insulated wire being piercing in outside core and insulating outer protective cover respectively；Described
Connection bolt sheath, ball stud sheath, the connection bolt sheath, ball are provided on the outside of connection bolt, ball stud
Hook bolt sheath is integrally connected on insulating outer protective cover.
As a preferred solution of the present invention, the resistor disc is provided with three pieces, and three pieces resistor disc is sequentially connected simultaneously
It is set between top electrode and discharge electrode.
As another preferred embodiment of the invention, on the outside of the insulating outer protective cover for being provided with installation holding screw one end
It is provided with end cap, the installation on the outside of the end cap is with being connected with hex nut and plain washer on holding screw.
As another preferred embodiment of the invention, it is provided on the outside of the insulated wire and Binding post/stud junction
Heat-shrink tube.
As another preferred embodiment of the invention, the insulated column is epoxy fibreglass leading-drawing rod, the insulation
Line is 0.6m high voltage insulated cable.
As another preferred embodiment of the invention, the core is made of SMC plastic material, outside the insulation
Sheath, connection bolt sheath, ball stud sheath are all made of silicone rubber material and are made.
As another preferred embodiment of the invention, the connection bolt is bent bolt, connects the bending of bolt
Partial end exposes to outside connection bolt sheath；The ball stud sheath covers the half of ball stud, is exposed to outer
The other half ball stud with connection bolt bending part it is exposed end it is opposite.
Beneficial effects of the present invention.
A kind of tension-resistant rod external series gap metal oxide arrester provided by the present invention, is mainly used for power transmission and distribution electric power
In system, for protecting electrical equipment and electric line to damage from atmospheric over-voltage and switching overvoltage；Specifically, this hair
It is bright to be used to protect in 10~20kV distribution line, insulator can be effectively prevent by lightning surge impact failure, can also be had
Effect protection insulated conductor is from lightning-caused breaking；Maximum feature is that high reliablity, failure rate are low, and maintenance workload is few.
Detailed description of the invention
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
The drawings and the specific embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment party described herein
Formula is only used to explain the present invention, is not intended to limit the present invention.
Fig. 1 is a kind of structural schematic diagram of tension-resistant rod external series gap of the invention metal oxide arrester.
Description of symbols in figure: 1 it is insulated wire, 2 is heat-shrink tube, 3 is Binding post/stud, 4 is lower electrode, 5 is insulated column, 6 is
Ball stud, 7 be ball stud sheath, 8 be connection bolt sheath, 9 be acorn nut, 10 be connection bolt, 11 be electric discharge electricity
Pole, 12 be insulating outer protective cover, 13 be core, 14 be resistor disc, 15 be top electrode, 16 be installation holding screw, 17 be hexagonal
Nut, 18 be plain washer, 19 be end cap.
Specific embodiment
In conjunction with shown in attached drawing, a kind of tension-resistant rod external series gap metal oxide arrester of the invention, including core 13, absolutely
Edge oversheath 12, is arranged insulating outer protective cover 12 on the outside of the core 13, and 13 inner space of core is from one end to the other end successively
It is provided with top electrode 15, resistor disc 14, discharge electrode 11, insulated column 5, lower electrode 4, the top electrode 15, lower electrode 4 are distinguished
Both ends inside core 13 are set；It is connected with and is piercing in outside core 13 and insulating outer protective cover 12 in the top electrode 15
It installs and uses holding screw 16, be connected with the connection spiral shell being piercing in outside core 13 and insulating outer protective cover 12 on the discharge electrode 11
Bolt 10, is connected with Binding post/stud 3, ball stud 6 on the lower electrode 4, the Binding post/stud 3 respectively be piercing in core
13 are connected with ball stud 6, the insulated wire 1 outside insulating outer protective cover 12；In the outside of the connection bolt 10, ball stud 6
It is provided with connection bolt sheath 8, ball stud sheath 7, the connection bolt sheath 8, the equal integrally connected of ball stud sheath 7
In on insulating outer protective cover 12.
As a preferred solution of the present invention, the resistor disc 14 is provided with three pieces, the successively phase of three pieces resistor disc 14
Connect and is set between top electrode 15 and discharge electrode 11.
As another preferred embodiment of the invention, in the insulating outer protective cover 12 for being provided with 16 one end of installation holding screw
Outside is provided with end cap 19, and the installation in 19 outside of end cap is with being connected with hex nut 17 and plain washer on holding screw 16
18。
As another preferred embodiment of the invention, it is arranged in the outside of the insulated wire 1 and 3 junction of Binding post/stud
There is heat-shrink tube 2.
As another preferred embodiment of the invention, the insulated column 5 is epoxy fibreglass leading-drawing rod, the insulation
Line 1 is 0.6m high voltage insulated cable.
As another preferred embodiment of the invention, the core 13 is made of SMC plastic material, the insulation
Oversheath 12, connection bolt sheath 8, ball stud sheath 7 are all made of silicone rubber material and are made.
As another preferred embodiment of the invention, the connection bolt 10 is bent bolt, connection bolt 10
The end of bending part exposes to outside connection bolt sheath 8；The ball stud sheath 7 covers the half of ball stud 6, cruelly
It is opposite with the exposed end of connection 10 bending part of bolt to be exposed to the other half outer ball stud 6.
The present invention can effectively prevent insulator to be impacted by lightning surge and damage for protecting in 10~20kV distribution line
It is bad, it can be with effective protection insulated conductor from lightning-caused breaking；Maximum feature of the invention is high reliablity, maintenance workload
It is few；Arrester only protects lightning surge and a small amount of amplitude switching overvoltage, basic for overvoltage in general power frequency
It is not responding to, therefore the damage of arrester is all lightning impulse damage, impact energy is big, is easier to blow, can be outside side
Set damaged condition judges whether product is intact；After arrester is by impact failure, route operation is had substantially no effect on, will not be generated
Ground fault, fortune inspection personnel can choose the suitable time and replace.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (7)
1. a kind of tension-resistant rod external series gap metal oxide arrester, it is characterised in that: including core (13), insulating outer protective cover
(12), insulating outer protective cover (12) are set on the outside of the core (13), core (13) inner space is from one end to the other end successively
It is provided with top electrode (15), resistor disc (14), discharge electrode (11), insulated column (5), lower electrode (4), the top electrode
(15), lower electrode (4) is separately positioned on the internal both ends of core (13)；It is connected in the top electrode (15) and is piercing in core
The installation of body (13) and insulating outer protective cover (12) outside is connected on the discharge electrode (11) and is piercing in holding screw (1)
The connection bolt (10) of core (13) and insulating outer protective cover (12) outside, be connected on the lower electrode (4) Binding post/stud (3),
Ball stud (6), the Binding post/stud (3) respectively be piercing in the ball stud of core (13) and insulating outer protective cover (12) outside
(6), insulated wire (1) is connected；Connection bolt sheath is provided on the outside of the connection bolt (10), ball stud (6)
(8), ball stud sheath (7), the connection bolt sheath (8), ball stud sheath (7) are integrally connected to the outer shield that insulate
It covers on (12).
2. a kind of tension-resistant rod external series gap metal oxide arrester according to claim 1, it is characterised in that: described
Resistor disc (14) be provided with three pieces, three pieces resistor disc (14) is sequentially connected and is set to top electrode (15) and discharge electrode (11)
Between.
3. a kind of tension-resistant rod external series gap metal oxide arrester according to claim 1, it is characterised in that: setting
It is equipped on the outside of the insulating outer protective cover (12) of installation holding screw (1) one end and is provided with end cap (19), the end cap (19) is outside
The installation of side is with being connected with hex nut (17) and plain washer (18) on holding screw (1).
4. a kind of tension-resistant rod external series gap metal oxide arrester according to claim 1, it is characterised in that: in institute
The insulated wire (1) stated and heat-shrink tube (2) are provided on the outside of Binding post/stud (3) junction.
5. a kind of tension-resistant rod external series gap metal oxide arrester according to claim 1, it is characterised in that: described
Insulated column (5) be epoxy fibreglass leading-drawing rod, the insulated wire (1) be 0.6m high voltage insulated cable.
6. a kind of tension-resistant rod external series gap metal oxide arrester according to claim 1, it is characterised in that: described
Core (13) be made of SMC plastic material, the insulating outer protective cover (12), connection bolt sheath (8), ball stud shield
Set (7) is all made of silicone rubber material and is made.
7. a kind of tension-resistant rod external series gap metal oxide arrester according to claim 1, it is characterised in that: described
Connection bolt (10) be bent bolt, connect bolt (10) bending part end expose to connection bolt sheath (8)
Outside；The ball stud sheath (7) covers the half of ball stud (6), is exposed to the other half outer ball stud (6) and connects
The exposed end of connecting bolt (10) bending part is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568624.8A CN109448939A (en) | 2018-12-21 | 2018-12-21 | A kind of tension-resistant rod external series gap metal oxide arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568624.8A CN109448939A (en) | 2018-12-21 | 2018-12-21 | A kind of tension-resistant rod external series gap metal oxide arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109448939A true CN109448939A (en) | 2019-03-08 |
Family
ID=65559989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811568624.8A Pending CN109448939A (en) | 2018-12-21 | 2018-12-21 | A kind of tension-resistant rod external series gap metal oxide arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109448939A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562949A (en) * | 2020-12-10 | 2021-03-26 | 辽宁华隆电力科技股份有限公司 | Series multi-gap metal oxide arrester |
| CN112863795A (en) * | 2021-01-20 | 2021-05-28 | 辽宁华隆电力科技股份有限公司 | Composite outer sleeve parallel gap lightning arrester |
| CN113808801A (en) * | 2021-09-26 | 2021-12-17 | 西门子避雷器（无锡）有限公司 | Arrester with fixed series gap |
| CN115000815A (en) * | 2022-05-26 | 2022-09-02 | 浙江避泰电气科技有限公司 | High-efficient high accuracy be assembled between/be connected's Du li dun core |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205140662U (en) * | 2015-10-18 | 2016-04-06 | 丹东电力设备厂 | Arrester of external series gap |
| CN207052386U (en) * | 2017-07-14 | 2018-02-27 | 中安达电气科技股份有限公司 | A kind of Novel lightning-proof pillar insulator |
| CN207441368U (en) * | 2017-10-13 | 2018-06-01 | 大连北方避雷器有限公司 | Arrester of the body with fixed interval (FI) |
| CN209199692U (en) * | 2018-12-21 | 2019-08-02 | 辽宁华隆电力科技股份有限公司 | A kind of tension-resistant rod external series gap metal oxide arrester |
-
2018
- 2018-12-21 CN CN201811568624.8A patent/CN109448939A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205140662U (en) * | 2015-10-18 | 2016-04-06 | 丹东电力设备厂 | Arrester of external series gap |
| CN207052386U (en) * | 2017-07-14 | 2018-02-27 | 中安达电气科技股份有限公司 | A kind of Novel lightning-proof pillar insulator |
| CN207441368U (en) * | 2017-10-13 | 2018-06-01 | 大连北方避雷器有限公司 | Arrester of the body with fixed interval (FI) |
| CN209199692U (en) * | 2018-12-21 | 2019-08-02 | 辽宁华隆电力科技股份有限公司 | A kind of tension-resistant rod external series gap metal oxide arrester |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562949A (en) * | 2020-12-10 | 2021-03-26 | 辽宁华隆电力科技股份有限公司 | Series multi-gap metal oxide arrester |
| CN112863795A (en) * | 2021-01-20 | 2021-05-28 | 辽宁华隆电力科技股份有限公司 | Composite outer sleeve parallel gap lightning arrester |
| CN113808801A (en) * | 2021-09-26 | 2021-12-17 | 西门子避雷器（无锡）有限公司 | Arrester with fixed series gap |
| CN113808801B (en) * | 2021-09-26 | 2025-01-21 | 西门子能源避雷器(无锡)有限公司 | Arrester with fixed series gap |
| CN115000815A (en) * | 2022-05-26 | 2022-09-02 | 浙江避泰电气科技有限公司 | High-efficient high accuracy be assembled between/be connected's Du li dun core |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190308 |