CN105513724A - Stationary type follow current-free anti-thunder over-voltage protector for AC (Alternating Current) line - Google Patents
Stationary type follow current-free anti-thunder over-voltage protector for AC (Alternating Current) line Download PDFInfo
- Publication number
- CN105513724A CN105513724A CN201610020130.0A CN201610020130A CN105513724A CN 105513724 A CN105513724 A CN 105513724A CN 201610020130 A CN201610020130 A CN 201610020130A CN 105513724 A CN105513724 A CN 105513724A
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- Prior art keywords
- fixed
- overvoltage protector
- alternating current
- gold utensil
- insulator
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- 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
- 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
-
- 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
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a stationary type follow current-free anti-thunder over-voltage protector for an AC (Alternating Current) line. The stationary type follow current-free anti-thunder over-voltage protector comprises a silicone rubber skirt and an insulator, wherein the insulator is coated by the silicone rubber skirt; a through hole is formed in the insulator; the through hole is internally and sequentially provided with a lower end part armor clamp, a sealed insulation pad, an inner discharge electric plate, a zinc oxide resistor disc, a pressure regulating spring and an upper end part armor clamp from bottom to top. According to the stationary type follow current-free anti-thunder over-voltage protector provided by the invention, power-frequency current is limited by the zinc oxide resistor disc, and power-frequency follow current can be prevented from being generated; when the stationary type follow current-free anti-thunder over-voltage protector is subjected to a thunder stroke and generates over-voltage, the over-voltage can be released through an outer discharge upper gap and an outer discharge ball lower gap, the discharging is more accurate through the arrangement of gap parameters and is not affected by the weather, and the power distribution reliability is increased.
Description
Technical field
The present invention relates to a kind of thunder resisting equipment, particularly relate to a kind of alternating current circuit with fixed without afterflow lightning-protection overvoltage protector.
Background technology
6-10kV distribution area coverage is large, and lines branch is many; And joint use many, insulation level is low, hits by thunder and lightning broken string that overvoltage causes, tripping operation, insulator breakdown accident occur again and again.Domestic and international adopted major measure has at present at present: side sets up lightning conducter on the line; Zinc oxide arrester is installed additional on post insulator side; Directly starting rod etc. is installed additional at high voltage load end.As Japan started to install current-limiting arc-extinguishing device from nineteen eighty-three, lightning arrester is equipped with on the pin insulator of distribution line in Australia, domestic Guo Wang company takes mid & low-voltage line equipment and room, station equipment in distribution construction, select zero-clearance zinc oxide lightning arrester, middle pressure overhead transmission line adopts external series gap insulator etc. by bar.But it is higher that these methods still also exist cost of investment, construction and installation are complicated, under severe weather conditions, produce not blow-out of discharging, and discharging current is comparatively large, burns the problem such as discharging gap and broken string.
Chinese invention patent (201410026398.6: a kind of anti-thunder insulator protector) discloses a kind of anti-thunder insulator protector, comprises insulator body, oversheath; The middle part of described insulator body is provided with through hole; Described through hole compartment of terrain is provided with valve block; The upper end of described insulator body is provided with the first electrode tip holder; The bottom of described insulator body is provided with the second electrode tip holder; Described oversheath wraps insulator body, the second electrode tip holder; The bottom of described outer jointing jacket is provided with base; Collets are provided with between described base and the second electrode tip holder; The bottom of described base is provided with screw, for insulator body is fixed on electric pole; Described first electrode tip holder is for connecting wire; The sidepiece of described base is provided with conducting block; The sidepiece of described second electrode tip holder is connected with discharge column; Described discharge column and conducting block are positioned at the homonymy of oversheath.
The anti-thunder insulator protector that foregoing invention patent provides, although can play the effect of lightning protection, obtaining overvoltage when receiving thunderbolt, puncturing valve block when lightning voltage is excessive, destroys body insulation, causes wired earth.Maintainer searches earth point and difficulty thereof, can not ensure to discharge accurately, and the easy climate impact of this product, and then reduce the reliability of power supply.
Summary of the invention
The present invention seeks to provide one not only to have lightning protection function to overcome the deficiencies in the prior art, and weatherproof, easy for installation, long service life, the high a kind of alternating current circuit of power supply reliability with fixed without afterflow lightning-protection overvoltage protector.
In order to solve the problems of the technologies described above, a kind of alternating current circuit provided by the invention is fixed without afterflow lightning-protection overvoltage protector, comprise silicon rubber umbrella skirt and insulator, described silicon rubber umbrella skirt wrap insulate, described insulator is provided with through hole, is provided with bottom gold utensil, bottom gold utensil sealed insulation pad, interior electric discharge electricity slope, zinc oxide resistance sheet, pressure regulating spring and gold utensil upper end, upper end gold utensil in described through hole from the bottom up successively; The sidepiece of described pressure regulating spring is provided with conductive strips; The sidepiece of described interior sparking electrode is provided with outer discharging gap; The sidepiece of described bottom gold utensil is provided with gap under outer ball discharge;
Under described outer discharging gap and described outer ball discharge, gap is positioned at the homonymy of silicon rubber umbrella skirt;
The described upper and lower gap of outer electric discharge is divided into discharge upper and lower gap and 10kV of 6kV to discharge upper and lower gap outward outward, and discharge the outward distance value in upper and lower gap of described 6kV is 20mm; Discharge the outward distance value in upper and lower gap of described 10kV is 38.5mm;
Described insulator adopts epoxy resins insulation cylinder.
Preferably, gold utensil upper end, upper end gold utensil is fixed on silicon rubber umbrella skirt by stud, and embedding upper end, one end gold utensil of described stud, is provided with through hole in other end bolt, is provided with wire in described through hole.
Preferably, described silicon rubber umbrella skirt is provided with size full skirt, and described size full skirt is symmetrical about its center equidistant intervals.
Preferably, the bottom of described silicon rubber umbrella skirt is provided with installation bracket, and described installation bracket is provided with screw, for silicon rubber umbrella skirt is fixed on installation bracket.
Preferably, described installation bracket is provided with bolt, for being fixed by insulator, and described bolt embeds bottom gold utensil in the gold utensil of described bottom.
Preferably, the other end of described installation bracket is provided with the through hole that diameter is Φ 20mm, and described installation bracket is connected with the cross-arm on electric pole by described through hole.
Preferably, described alternating current circuit with fixed without afterflow lightning-protection overvoltage protector be divided into 6kV fixed without afterflow lightning-protection overvoltage protector and 10kV fixed without afterflow lightning-protection overvoltage protector; Described 6kV is fixed is 3 without the quantity of zinc oxide resistance sheet in afterflow lightning-protection overvoltage protector; Described 10kV is fixed is 4 without the quantity of zinc oxide resistance sheet in afterflow lightning-protection overvoltage protector.
Compared with prior art, the beneficial effect that the present invention produces is:
(1) adopt special current limiting element and unique structure, instantaneously while extinguish arcs, the residual voltage of trace discharged, when being struck by lightning, the action of outer discharging gap rod, introduces lightning current greatly, guarantees that insulator and wire preserve from, play protection to power equipment.Owing to adopting external series gap discharging structure, be connected in parallel on line pin-type insulator side and do not set up wire, guarantee can not cause line-to-ground in any case;
(2) zinc oxide resistance sheet in the present invention limits power current, prevents power frequency continued flow, and simultaneously because external series gap plays buffer action, zinc oxide resistance sheet can be prevented not to be subject to galvanic corrosion and damage, Realization of Product is non-maintaining;
(3) material of the external electric discharge device in the present invention is stainless steel, reaches the effect that anticorrosion, resistance to electric arc burns;
(4) in the present invention, discharge the outward value of upper and lower clearance distance of 6kV be discharge the outward value of upper and lower clearance distance of 20mm, 10kV is 38.5mm; In 6kV-10kV coverage, electric discharge can be made more accurate, and weatherproof, convenient, long service life is installed, really reaches non-maintaining, reduce installation and maintenance cost, improve power supply reliability.
Accompanying drawing explanation
Accompanying drawing 1 is the fixed schematic diagram without afterflow lightning-protection overvoltage protector in a kind of alternating current circuit provided by the invention;
Wherein, 1, wire; 2, upper end gold utensil; 3, silicon rubber umbrella skirt; 4, conductive strips; 5, pressure regulating spring; 6, zinc oxide resistance sheet; 7, insulator; 8, interior electric discharge electroplax; 9, gap in outer electric discharge; 10, sealed insulation pad; 11, gap under outer ball discharge; 12, bottom gold utensil; 13, installation bracket.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing 1 be a kind of alternating current circuit provided by the invention with fixed without afterflow lightning-protection overvoltage protector, comprise silicon rubber umbrella skirt 3 and insulator 7, described silicon rubber umbrella skirt 3 wrap insulate 7, described insulator 7 is provided with through hole, is provided with bottom gold utensil 12, sealed insulation pad 10, interior sparking electrode 8, zinc oxide resistance sheet 6, pressure regulating spring 5 and upper end gold utensil 2 from the bottom up successively in described through hole; The sidepiece of described pressure regulating spring 5 is provided with conductive strips 4; The sidepiece of described interior electric discharge electroplax 8 is provided with outer discharging gap 9; The sidepiece of described bottom gold utensil 12 is provided with gap 11 under outer ball discharge; Described outer discharging gap 9 and gap 11 under described outer ball discharge are positioned at the homonymy of silicon rubber umbrella skirt 3; The value of described outer discharging gap 9 is Φ 6*60mm; Under described outer ball discharge, the value in gap 11 is Φ 6*50mm; Described insulator 7 adopts epoxy resins insulation cylinder;
Upper end gold utensil 2 is fixed on silicon rubber umbrella skirt 3 by stud, and embedding upper end, one end gold utensil of described stud, is provided with through hole in other end bolt, is provided with wire 1 in described through hole;
Described silicon rubber umbrella skirt 3 is provided with size full skirt, and described size full skirt is symmetrical about its center equidistant intervals; The bottom of described silicon rubber umbrella skirt 3 is provided with installation bracket 13, described installation bracket 13 is provided with screw, for silicon rubber umbrella skirt is fixed on installation bracket; Described installation bracket 13 is provided with bolt, and for being fixed by insulator 7, and described bolt embeds in the gold utensil of described bottom; The other end of described installation bracket is provided with diameter for installation bracket described in the through hole of Φ 20mm and is connected with the cross-arm on electric pole by described through hole.
Alternating current circuit provided by the invention with fixed without afterflow lightning-protection overvoltage protector in use; the zinc oxide resistance sheet being positioned at insulator through hole can be used for lightning protection; extinguish arcs instantaneously; the residual voltage of trace is discharged simultaneously; the outer discharging gap action when being struck by lightning; lightning current is introduced the earth, guarantees that insulator and wire preserve from, protection is played to power equipment.When obtaining overvoltage when receiving thunderbolt, can from gap release under gap in outer electric discharge and outer ball discharge, the selection of gap parameter makes electric discharge more accurate, and in the impact of not climate.Aerial condutor lightning-caused breaking accident can be prevented, can effectively limit and block follow-up power frequency stream, avoid follow-up power current to the burn of wire and insulator, prevent distribution line from exporting protection act switch trip.Improve power supply reliability, Realization of Product is non-maintaining, a large amount of repair and maintenance expenses can be saved.
A series of detailed description described in literary composition is only illustrating for feasibility execution mode of the present invention; they are not limit the scope of the invention; in the ken that described technical field those of ordinary skill possesses, the various changes made under the prerequisite not departing from present inventive concept all belong to protection scope of the present invention.
Claims (7)
1. an alternating current circuit with fixed without afterflow lightning-protection overvoltage protector, comprise silicon rubber umbrella skirt and insulator, it is characterized in that, described silicon rubber umbrella skirt wrap insulate, described insulator is provided with through hole, is provided with bottom gold utensil, bottom gold utensil sealed insulation pad, interior sparking electrode, zinc oxide resistance sheet, pressure regulating spring and gold utensil upper end, upper end gold utensil in described through hole from the bottom up successively; The sidepiece of described pressure regulating spring is provided with conductive strips; The sidepiece of described interior sparking electrode is provided with outer discharging gap; The sidepiece of described bottom gold utensil is provided with gap under outer ball discharge;
Under described outer discharging gap and described outer ball discharge, gap is positioned at the homonymy of silicon rubber umbrella skirt;
The described upper and lower gap of outer electric discharge is divided into discharge upper and lower gap and 10kV of 6kV to discharge upper and lower gap outward outward, and discharge the outward distance value in upper and lower gap of described 6kV is 20mm; Discharge the outward distance value in upper and lower gap of described 10kV is 38.5mm; Described insulator adopts epoxy resins insulation cylinder.
2. alternating current circuit as claimed in claim 1 with fixed without afterflow lightning-protection overvoltage protector; it is characterized in that; gold utensil upper end, described upper end gold utensil is fixed on silicon rubber umbrella skirt by stud; in embedding upper end, one end gold utensil of described stud; be provided with through hole in other end bolt, in described through hole, be provided with wire.
3. alternating current circuit as claimed in claim 1 is characterized in that without afterflow lightning-protection overvoltage protector with fixed, and described silicon rubber umbrella skirt is provided with size full skirt, and described size full skirt is symmetrical about its center equidistant intervals.
4. alternating current circuit as claimed in claim 1 with fixed without afterflow lightning-protection overvoltage protector; it is characterized in that; the bottom of described silicon rubber umbrella skirt is provided with installation bracket, and described installation bracket is provided with screw, for silicon rubber umbrella skirt is fixed on installation bracket.
5. alternating current circuit as claimed in claim 1 is characterized in that without afterflow lightning-protection overvoltage protector with fixed, and described installation bracket is provided with bolt, and for being fixed by insulator, and described bolt embeds in the gold utensil of described bottom.
6. alternating current circuit as claimed in claim 1 is characterized in that without afterflow lightning-protection overvoltage protector with fixed, and the other end of described installation bracket is provided with the through hole that diameter is Φ 20mm, and described installation bracket is connected with the cross-arm on electric pole by described through hole.
7. alternating current circuit as claimed in claim 1 with fixed without afterflow lightning-protection overvoltage protector, it is characterized in that, described alternating current circuit with fixed without afterflow lightning-protection overvoltage protector be divided into 6kV fixed without afterflow lightning-protection overvoltage protector and 10kV fixed without afterflow lightning-protection overvoltage protector; Described 6kV is fixed is 3 without the quantity of zinc oxide resistance sheet in afterflow lightning-protection overvoltage protector; Described 10kV is fixed is 4 without the quantity of zinc oxide resistance sheet in afterflow lightning-protection overvoltage protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020130.0A CN105513724A (en) | 2016-01-13 | 2016-01-13 | Stationary type follow current-free anti-thunder over-voltage protector for AC (Alternating Current) line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020130.0A CN105513724A (en) | 2016-01-13 | 2016-01-13 | Stationary type follow current-free anti-thunder over-voltage protector for AC (Alternating Current) line |
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| Publication Number | Publication Date |
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| CN105513724A true CN105513724A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610020130.0A Pending CN105513724A (en) | 2016-01-13 | 2016-01-13 | Stationary type follow current-free anti-thunder over-voltage protector for AC (Alternating Current) line |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494260A (en) * | 2016-12-28 | 2017-03-15 | 盐城工学院 | Combined rigidity hangs pin type insulator arrangement |
| CN107481820A (en) * | 2017-08-18 | 2017-12-15 | 国网湖南省电力公司 | A kind of anti-thunder insulator and its manufacture method |
| CN111627622A (en) * | 2020-06-05 | 2020-09-04 | 江西百新电瓷电气有限公司 | 10KV automatic-adjustment lightning-protection ice porcelain insulator with pressure-sensitive device and manufacturing method thereof |
| CN111952022A (en) * | 2020-08-06 | 2020-11-17 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Insulator device |
| AU2020289726B1 (en) * | 2020-05-25 | 2021-08-05 | State Grid Corporation Of China | Insulator for preventing lightning-caused breaking and personal electric shock |
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| 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 |
| JP2013054894A (en) * | 2011-09-02 | 2013-03-21 | Chugoku Electric Power Co Inc:The | Anti-tilt device of multi-phone |
| CN203481768U (en) * | 2013-09-09 | 2014-03-12 | 大连法伏安电器有限公司 | Spherical fixed outer-gap lightning arrester for 10kV system insulating overhead line tension rod |
| CN203659557U (en) * | 2013-12-27 | 2014-06-18 | 山东迅实电气有限公司 | Line type fixed clearance metal oxide arrester |
-
2016
- 2016-01-13 CN CN201610020130.0A patent/CN105513724A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2013054894A (en) * | 2011-09-02 | 2013-03-21 | Chugoku Electric Power Co Inc:The | Anti-tilt device of multi-phone |
| CN203481768U (en) * | 2013-09-09 | 2014-03-12 | 大连法伏安电器有限公司 | Spherical fixed outer-gap lightning arrester for 10kV system insulating overhead line tension rod |
| CN203659557U (en) * | 2013-12-27 | 2014-06-18 | 山东迅实电气有限公司 | Line type fixed clearance metal oxide arrester |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494260A (en) * | 2016-12-28 | 2017-03-15 | 盐城工学院 | Combined rigidity hangs pin type insulator arrangement |
| CN107481820A (en) * | 2017-08-18 | 2017-12-15 | 国网湖南省电力公司 | A kind of anti-thunder insulator and its manufacture method |
| AU2020289726B1 (en) * | 2020-05-25 | 2021-08-05 | State Grid Corporation Of China | Insulator for preventing lightning-caused breaking and personal electric shock |
| CN111627622A (en) * | 2020-06-05 | 2020-09-04 | 江西百新电瓷电气有限公司 | 10KV automatic-adjustment lightning-protection ice porcelain insulator with pressure-sensitive device and manufacturing method thereof |
| CN111952022A (en) * | 2020-08-06 | 2020-11-17 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Insulator device |
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| CB03 | Change of inventor or designer information |
Inventor after: Pan Longyu Inventor after: Li Guangsheng Inventor after: Jiang Yuanzheng Inventor after: Xing Jun Inventor after: Liu Dawei Inventor after: Pan Xingzhi Inventor after: Pan Yingji Inventor after: Shi Yingcai Inventor after: Lin Fang Inventor after: Su Ning Inventor after: Fu Hao Inventor after: Pan Yingwei Inventor after: Yang Junbao Inventor before: Pan Longyu Inventor before: Li Guangsheng Inventor before: Jiang Yuanzheng Inventor before: Xing Jun Inventor before: Pan Xingzhi Inventor before: Pan Yingji Inventor before: Shi Yingcai Inventor before: Lin Fang Inventor before: Su Ning Inventor before: Fu Hao Inventor before: Pan Yingwei Inventor before: Yang Junbao |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |