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 PDF

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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
Authority
CN
China
Prior art keywords
core
outside
protective cover
ball stud
outer protective
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
Application number
CN201811568624.8A
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Chinese (zh)
Inventor
由仁宽
卢俊峰
高伟
朱淑梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Hualong Electric Technology Inc Co
Original Assignee
Liaoning Hualong Electric Technology Inc Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liaoning Hualong Electric Technology Inc Co filed Critical Liaoning Hualong Electric Technology Inc Co
Priority to CN201811568624.8A priority Critical patent/CN109448939A/en
Publication of CN109448939A publication Critical patent/CN109448939A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/42Means for obtaining improved distribution of voltage; Protection against arc discharges
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00Insulators or insulating bodies characterised by their form
    • H01B17/42Means for obtaining improved distribution of voltage; Protection against arc discharges
    • H01B17/46Means for providing an external arc-discharge path
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/16Resistor networks not otherwise provided for
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C7/00Non-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
    • H01C7/10Non-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
    • H01C7/12Overvoltage protection resistors
    • H01C7/123Arrangements for improving potential distribution
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00Details of spark gaps
    • H01T1/16Series resistor structurally associated with spark gap
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00Overvoltage arresters using spark gaps
    • H01T4/10Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
    • H01T4/14Arcing horns

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

Abstract

The invention discloses a kind of tension-resistant rod external series gap metal oxide arresters, including core, insulating outer protective cover, insulating outer protective cover is set on the outside of core, core inner space is disposed with top electrode, resistor disc, discharge electrode, insulated column, lower electrode from one end to the other end, and 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 top electrode, the connection bolt being piercing in outside core and insulating outer protective cover is connected on discharge electrode, Binding post/stud, ball stud are connected on lower electrode, Binding post/stud is connected with ball stud, the insulated wire being piercing in outside core and insulating outer protective cover respectively;Connection bolt sheath, ball stud sheath are provided on the outside of connection bolt, ball stud, connection bolt sheath, ball stud sheath are integrally connected on insulating outer protective cover.High reliablity of the present invention, failure rate are low, and maintenance workload is few.

Description

A kind of tension-resistant rod external series gap metal oxide arrester
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.
CN201811568624.8A 2018-12-21 2018-12-21 A kind of tension-resistant rod external series gap metal oxide arrester Pending CN109448939A (en)

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

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CN201811568624.8A Pending CN109448939A (en) 2018-12-21 2018-12-21 A kind of tension-resistant rod external series gap metal oxide arrester

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (3)

* Cited by examiner, † Cited by third party
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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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