CN109509596A - A kind of metal oxide arrester - Google Patents

A kind of metal oxide arrester Download PDF

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Publication number
CN109509596A
CN109509596A CN201811568394.5A CN201811568394A CN109509596A CN 109509596 A CN109509596 A CN 109509596A CN 201811568394 A CN201811568394 A CN 201811568394A CN 109509596 A CN109509596 A CN 109509596A
Authority
CN
China
Prior art keywords
core
bolt
protective cover
metal oxide
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
CN201811568394.5A
Other languages
Chinese (zh)
Inventor
朱淑梅
卢俊峰
于继忱
由仁宽
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 CN201811568394.5A priority Critical patent/CN109509596A/en
Publication of CN109509596A publication Critical patent/CN109509596A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/01Mounting; Supporting
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/02Housing; Enclosing; Embedding; Filling the housing or enclosure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/14Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C1/00Details
    • H01C1/16Resistor networks not otherwise provided for

Abstract

The invention discloses a kind of metal oxide arresters, including core, insulating outer protective cover, insulating outer protective cover is set on the outside of the core, core inner space sets gradually top electrode, resistor disc, discharge electrode, lower electrode from one end to the other end, and top electrode, lower electrode are separately positioned on the both ends inside core;Conducting wire receiving groove seat is fixedly connected in core outboard end, tension disc is fixedly connected in conducting wire receiving groove seat, the connection bolt being piercing in outside core and insulating outer protective cover is connected on discharge electrode, the ball stud being piercing in outside core and insulating outer protective cover is connected on lower electrode, is fixedly connected with installation tight fixed bolt in core outboard end;Installation is with mounting plate is fixedly connected on tight fixed bolt, in the outside setting connection bolt sheath of connection bolt.The present invention can effectively prevent insulator by lightning surge impact failure, can be with effective protection insulated conductor from lightning-caused breaking;Maximum feature is that high reliablity, failure rate are low, and maintenance workload is few.

Description

A kind of metal oxide arrester
Technical field
The invention belongs to power transmission and distribution electrical equipment technical fields, particularly relate to a kind of 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 Metal oxygen in system and for protecting electrical equipment and electric line to damage from atmospheric over-voltage and switching overvoltage Compound arrester is a kind of overvoltage protection.
To achieve the above object, the present invention adopts the following technical scheme that.
A kind of metal oxide arrester of the present invention, it is characterised in that: including core, insulating outer protective cover, the core Insulating outer protective cover is arranged in outside, and core inner space is disposed with top electrode, resistor disc, electric discharge electricity from one end to the other end Pole, lower electrode, the top electrode, lower electrode are separately positioned on the both ends inside core;Core in setting top electrode one end External side is fixedly connected with conducting wire receiving groove seat, is fixedly connected with tension disc in the conducting wire receiving groove seat, described puts It is connected with the connection bolt being piercing in outside core and insulating outer protective cover on electrode, is connected on the lower electrode and is piercing in core Ball stud outside body and insulating outer protective cover, the core outboard end of electrode one end is fixedly connected with installation clamp screw under setting Bolt;The installation is provided with connection spiral shell on the outside of the connection bolt with mounting plate is fixedly connected on tight fixed bolt Bolt sheath, the connection bolt sheath are 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, the core is made of SMC plastic material, outside the insulation Sheath, connection bolt 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 is interlinked to the outside with bolt sheath is connect, the end of the connection bolt bending part and the bulb phase of ball stud It is right.
As another preferred embodiment of the invention, the conducting wire receiving groove seat and crimping board ends pass through turret head spiral shell Bolt is fixedly linked, and pad is equipped with second spring washer between the hexagon-headed bolt and tension disc.
As another preferred embodiment of the invention, pass through hexagonal spiral shell between the mounting plate and installation tight fixed bolt Mother is fixedly connected, and pad is equipped with plain washer, the first spring washer between the hex nut and mounting plate.
As another preferred embodiment of the invention, circular mounting hole or U-shaped is provided on the mounting plate end Installation slotted eye.
Beneficial effects of the present invention.
A kind of metal oxide arrester provided by the present invention, is mainly used in power transmission and distribution electric system, for protecting Electrical equipment and electric line are damaged from atmospheric over-voltage and switching overvoltage;Specifically, the present invention is for protecting 6kV to match In cable road, insulator can be effectively prevent by lightning surge impact failure, it can be with effective protection insulated conductor from thunder Strike off line;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 a kind of structural schematic diagram of embodiment of metal oxide arrester of the present invention.
Fig. 2 is the direction the B view of Fig. 1.
Fig. 3 is the A-A sectional structure chart of Fig. 2.
Fig. 4 is a kind of structural schematic diagram of another embodiment of metal oxide arrester of the present invention.
Fig. 5 is a kind of structural schematic diagram of another embodiment of metal oxide arrester of the present invention.
Description of symbols in figure: 1 be tension disc, 2 be hexagon-headed bolt, 3 be insulating outer protective cover, 4 be connection bolt sheath, 5 It is ball stud for connection bolt, 6,7 be mounting plate, 8 be circular mounting hole, 9 be plain washer, 10 is the first spring washer, 11 For hex nut, 12 be second spring washer, 13 be conducting wire receive groove seat, 14 be top electrode, 15 be core, 16 be electric discharge electricity Pole, 17 be lower electrode, 18 be resistor disc, 19 be installation tight fixed bolt.
Specific embodiment
In conjunction with shown in attached drawing, a kind of metal oxide arrester of the present invention, it is characterised in that: outer including core 15, insulation Insulating outer protective cover 3 is arranged on the outside of the core 15 for sheath 3, and 15 inner space of core is disposed with from one end to the other end Top electrode 14, resistor disc 18, discharge electrode 16, lower electrode 17, the top electrode 14, lower electrode 17 are separately positioned on core 15 Internal both ends;15 outboard end of core in setting 14 one end of top electrode is fixedly connected with conducting wire receiving groove seat 13, described It is fixedly connected with tension disc 1 in conducting wire receiving groove seat 13, is connected on the discharge electrode 16 and is piercing in core 15 and insulation Connection bolt 5 outside oversheath 3 is connected with the bulb being piercing in outside core 15 and insulating outer protective cover 3 on the lower electrode 17 Bolt 6,15 outboard end of core of 17 one end of electrode is fixedly connected with installation tight fixed bolt 19 under setting;The installation is used It is fixedly connected with mounting plate 7 on tight fixed bolt 19, the outside of the connection bolt 5 is provided with connection bolt sheath 4, it is described Connection bolt sheath 4 be integrally connected on insulating outer protective cover 3.
As a preferred solution of the present invention, the resistor disc 18 is provided with three pieces, the successively phase of three pieces resistor disc 18 Connect and is set between top electrode 14 and discharge electrode 16.
As another preferred embodiment of the invention, the core 15 is made of SMC plastic material, the insulation Oversheath 3, connection bolt sheath 4 are all made of silicone rubber material and are made.
As another preferred embodiment of the invention, the connection bolt 5 is bent bolt, connects the curved of bolt 5 The end of folding part point is interlinked to the outside with bolt sheath 4 is connect, the end of connection 5 bending part of bolt and ball stud 6 Bulb is opposite.
As another preferred embodiment of the invention, the conducting wire receiving groove seat 13 and 1 both ends of tension disc pass through hexagonal Hook bolt 2 is fixedly linked, and pad is equipped with second spring washer 12 between the hexagon-headed bolt 2 and tension disc 1.
As another preferred embodiment of the invention, pass through six between the mounting plate 7 and installation tight fixed bolt 19 Angle nut 11 is fixedly connected, and pad is equipped with plain washer 9, the first spring washer 10 between the hex nut 11 and mounting plate 7.
As another preferred embodiment of the invention, circular mounting hole 8 or U are provided on 7 end of mounting plate Type installation slotted eye.
Fig. 4 is a kind of structural schematic diagram of another embodiment of metal oxide arrester of the present invention, in this embodiment In structure chart, mounting plate end is provided with U-shaped installation slotted eye, the opening of this U-shaped installation slotted eye is oriented the C marked in figure Direction;Fig. 5 is a kind of structural schematic diagram of another embodiment of metal oxide arrester of the present invention, in this example structure In figure, mounting plate end is provided with U-shaped installation slotted eye, the opening of this U-shaped installation slotted eye is oriented the side D marked in figure To.
The present invention can effectively prevent insulator by lightning surge impact failure, also for protecting in 6kV distribution line It can be with effective protection insulated conductor from lightning-caused breaking;Maximum feature of the invention is high reliablity, and maintenance workload is few;It is lightning-arrest Device only protects lightning surge and a small amount of amplitude switching overvoltage, and overvoltage in general power frequency is not responding to substantially, Therefore the damage of arrester is all lightning impulse damage, and impact energy is big, is easier to blow, and can damage feelings from side housing Condition judges whether product is intact;After arrester is by impact failure, route operation is had substantially no effect on, ground connection event will not be generated Barrier, 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 metal oxide arrester, it is characterised in that: including core (15), insulating outer protective cover (3), the core (15) outside be arranged insulating outer protective cover (3), core (15) inner space be disposed with from one end to the other end top electrode (14), Resistor disc (18), discharge electrode (16), lower electrode (17), the top electrode (14), lower electrode (17) are separately positioned on core (15) internal both ends;Core (15) outboard end in setting top electrode (14) one end is fixedly connected with conducting wire receiving groove seat (13), it is fixedly connected with tension disc (1) in conducting wire receiving groove seat (13), is connected with and wears on the discharge electrode (16) For the connection bolt (5) of core (15) and insulating outer protective cover (3) outside, it is connected on the lower electrode (17) and is piercing in core (15) and the outer ball stud (6) of insulating outer protective cover (3), core (15) outboard end of electrode (17) one end is fixed under setting connects It is connected to installation tight fixed bolt (19);The installation is with mounting plate (7) are fixedly connected on tight fixed bolt (19), described Connection bolt sheath (4) is provided on the outside of connection bolt (5), it is outer that the connection bolt sheath (4) is integrally connected to insulation On sheath (3).
2. a kind of metal oxide arrester according to claim 1, it is characterised in that: resistor disc (18) setting There are three pieces, three pieces resistor disc (18) is sequentially connected and is set between top electrode (14) and discharge electrode (16).
3. a kind of metal oxide arrester according to claim 1, it is characterised in that: the core (15) uses SMC plastic material is made, and the insulating outer protective cover (3), connection bolt sheath (4) are all made of silicone rubber material and are made.
4. a kind of metal oxide arrester according to claim 1, it is characterised in that: the connection bolt (5) is Bent bolt, the end for connecting the bending part of bolt (5) are interlinked to the outside with bolt sheath (4) is connect, the connection bolt (5) end of bending part is opposite with the bulb of ball stud (6).
5. a kind of metal oxide arrester according to claim 1, it is characterised in that: the conducting wire receives groove seat (13) it is fixedly linked with tension disc (1) both ends by hexagon-headed bolt (2), between the hexagon-headed bolt (2) and tension disc (1) Pad is equipped with second spring washer (12).
6. a kind of metal oxide arrester according to claim 1, it is characterised in that: the mounting plate (7) and peace Dress is fixedly connected between tight fixed bolt (19) by hex nut (11), between the hex nut (11) and mounting plate (7) Pad is equipped with plain washer (9), the first spring washer (10).
7. a kind of metal oxide arrester according to claim 1, it is characterised in that: described mounting plate (7) end On be provided with circular mounting hole (8) or U-shaped installation slotted eye.
CN201811568394.5A 2018-12-21 2018-12-21 A kind of metal oxide arrester Pending CN109509596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811568394.5A CN109509596A (en) 2018-12-21 2018-12-21 A kind of metal oxide arrester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811568394.5A CN109509596A (en) 2018-12-21 2018-12-21 A kind of metal oxide arrester

Publications (1)

Publication Number Publication Date
CN109509596A true CN109509596A (en) 2019-03-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110311345A (en) * 2019-06-18 2019-10-08 浙江伏尔特电器有限公司 Over-voltage protector and its mounting rack

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201247661Y (en) * 2008-08-22 2009-05-27 宁波市镇海国创高压电器有限公司 Composite greatcoat type metal-oxide lighting arrester
CN102157253A (en) * 2011-01-26 2011-08-17 吉林市能兴电力设备有限公司 Outer-gap lightning arrester
CN104715869A (en) * 2015-04-10 2015-06-17 国网上海市电力公司 Insulator support fixed gap overvoltage protector
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)
CN209199703U (en) * 2018-12-21 2019-08-02 辽宁华隆电力科技股份有限公司 A kind of metal oxide arrester

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201247661Y (en) * 2008-08-22 2009-05-27 宁波市镇海国创高压电器有限公司 Composite greatcoat type metal-oxide lighting arrester
CN102157253A (en) * 2011-01-26 2011-08-17 吉林市能兴电力设备有限公司 Outer-gap lightning arrester
CN104715869A (en) * 2015-04-10 2015-06-17 国网上海市电力公司 Insulator support fixed gap overvoltage protector
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)
CN209199703U (en) * 2018-12-21 2019-08-02 辽宁华隆电力科技股份有限公司 A kind of metal oxide arrester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110311345A (en) * 2019-06-18 2019-10-08 浙江伏尔特电器有限公司 Over-voltage protector and its mounting rack

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