CN111342347A - Neutral point gap grounding protection device - Google Patents
Neutral point gap grounding protection device Download PDFInfo
- Publication number
- CN111342347A CN111342347A CN202010133663.6A CN202010133663A CN111342347A CN 111342347 A CN111342347 A CN 111342347A CN 202010133663 A CN202010133663 A CN 202010133663A CN 111342347 A CN111342347 A CN 111342347A
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- China
- Prior art keywords
- lightning
- neutral point
- shaped plate
- fixed
- plate
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- 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.)
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Classifications
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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
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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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
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/40—Connection to earth
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Elimination Of Static Electricity (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to the technical field of ground protection, in particular to a neutral point gap ground protection device which comprises a fixed disc, wherein a support column is arranged on the lower surface of the fixed disc, a fixed column is sleeved at a position, close to the top, of a metal rod, the fixed column penetrates through a lower U-shaped plate, a gap discharge ball is arranged at the top end of the metal rod, slide holes are formed in the end parts of the two ends of the lower U-shaped plate, slide columns are arranged on the end parts of the two ends of the upper U-shaped plate, a spring is sleeved on each slide column, a lightning protection mechanism is sleeved at a position, close to the top; this neutral point clearance ground protection device, support column cooperation base are convenient for fix subaerial, prevent that the external stability that influences whole device, lower U template uses with last U template cooperation, and the traveller cooperates with the slide opening grafting, under the effect of spring, slows down the damage that the shock brought, and clearance discharge ball and arc discharge plate correspond and combine the use, the electrically conductive protection of the clearance ground of being convenient for, lightning-arrest mechanism cooperation awl prevents to receive the thunderbolt in the external world.
Description
Technical Field
The invention relates to the technical field of grounding protection, in particular to a neutral point gap grounding protection device.
Background
The neutral point grounding protection device is widely applied to neutral points of power transformers of 110kV, 220kV, 330kV, 500kV and the like to realize grounding operation or ungrounded operation of the neutral points of the transformers, so that damage to the transformers caused by overhigh voltage or overlarge current of the neutral points of the transformers due to system faults is avoided;
the existing neutral point gap grounding protection device is not simple enough, and the gap grounding device cannot slow down damage caused by oscillation.
Disclosure of Invention
The present invention is directed to a neutral point gap grounding protection device to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a neutral point clearance ground protection device, includes the fixed disk, the fixed disk lower surface is equipped with a plurality of support column, fixed disk upper surface central point puts and inlays and be equipped with the metal pole, the metal pole is close to top position cover and is equipped with the fixed column, the fixed column runs through U template down, the gapped discharge ball is installed on the metal pole top, the slide opening has all been seted up on the tip at U template both ends down, U template top is equipped with the U template down, all be equipped with the traveller that corresponds with the slide opening position on the tip at last U template both ends, every all overlap on the traveller and be equipped with the spring, it has run through the guide arm to go up U template central point, the top portion of guide arm is equipped with the pointed cone, the guide arm is close to top position cover and is equipped with lightning-arrest mechanism, the guide arm intermediate position still is.
Preferably, the support columns are distributed at equal intervals in an annular mode, the bases are further arranged at the tail ends of the support columns, round holes are symmetrically formed in the bases, and the bases and the support columns are of an integrally formed structure.
Preferably, the supporting column is welded and fixed with the fixed disc, and the metal rod is welded and fixed with the fixed disc.
Preferably, the metal rod and the fixing column are of an integrally formed structure, the gap discharge ball and the metal rod are of an integrally formed structure, the fixing column and the lower U-shaped plate are of an integrally formed structure, and the guide rod and the upper U-shaped plate are of an integrally formed structure.
Preferably, the upper U-shaped plate and the sliding column are of an integrally formed structure, the diameter of the sliding column is matched with the aperture of the sliding hole, and the sliding column is connected with the sliding hole in a sliding mode.
Preferably, one end of the spring is fixedly bonded with the upper U-shaped plate, and the other end of the spring is fixedly bonded with the lower U-shaped plate.
Preferably, the pointed cone and the guide rod are of an integrally formed structure, the lightning protection mechanism and the guide rod are fixedly welded, and the wiring end post and the guide rod are of an integrally formed structure.
Preferably, the arc discharge plate is welded and fixed with the guide rod, the inner diameter of the arc discharge plate is larger than the diameter of the gap discharge ball, and the gap discharge ball is placed in the center of the arc discharge plate.
Preferably, the lightning protection mechanism includes a plurality of lightning plates, the lightning plates are linear equidistant arrangement in vertical direction, pass through connecting rod fixed connection, every between two adjacent lightning plates the lightning plates all are the cake form, and every lightning plate is the copper conductor, still installs a plurality of vertical lightning rods on the lightning plate that is located the top, the lightning rod also is the copper conductor.
Preferably, every all be equipped with fixed establishment on the base, fixed establishment is including being conical ground needle of inserting, the surface of inserting ground needle is equipped with the screw thread, and inserts ground needle top and be fixed with the spacing ring, inserts still to overlap on the ground needle and is equipped with fixation nut, interlock each other between the screw thread on the fixation nut and the screw thread on ground needle surface.
Compared with the prior art, the invention has the beneficial effects that:
the fixed disc is provided with a plurality of support columns which are distributed at equal intervals in an annular mode, the support columns are matched with the base and are convenient to fix on the ground, the stability of the whole device is prevented from being influenced by the outside, the lower U-shaped plate and the upper U-shaped plate are matched for use, the sliding columns are matched with the sliding holes in an inserted mode, damage caused by oscillation is reduced under the action of the springs, the metal rods are provided with gap discharge balls which are correspondingly combined with the arc discharge plates on the guide rods for use, the gap grounding conduction is convenient to protect, and the lightning protection mechanism is matched with the pointed cone to prevent lightning stroke from being applied to the outside and.
Drawings
Fig. 1 is a schematic view of the overall structure of the neutral point gap ground protection device of the present invention;
fig. 2 is a schematic bottom view of the neutral point gap ground protection device of the present invention;
FIG. 3 is a partial structure diagram of the fixed disk and the lower U-shaped plate of the present invention;
fig. 4 is a schematic structural view of the upper U-shaped plate and the lightning protection mechanism of the present invention.
In the figure:
1. fixing the disc;
2. a support pillar; 20. a base; 200. a circular hole;
3. a metal rod; 30. a gap discharge ball;
4. a lower U-shaped plate; 40. a slide hole;
5. fixing a column;
6. an upper U-shaped plate; 60. a traveler; 61. a spring;
7. a guide bar; 70. a pointed cone; 71. a lightning protection mechanism; 72. a terminal post; 73. an arc discharge plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-4, the present invention provides a technical solution:
the utility model provides a neutral point clearance ground protection device, including fixed disk 1, 1 lower surface of fixed disk is equipped with a plurality of support column 2, 1 upper surface central point of fixed disk puts and inlays and be equipped with metal pole 3, metal pole 3 is close to top position cover and is equipped with fixed column 5, fixed column 5 runs through lower U template 4, clearance discharge ball 30 is installed on 3 tops of metal pole, all seted up slide opening 40 on the tip at lower U template 4 both ends, U template 4 top is equipped with U template 6 down, all be equipped with the traveller 60 that corresponds with slide opening 40 position on the tip at last U template 6 both ends, all overlap on every traveller 60 and be equipped with spring 61, it has guide arm 7 to go up U template 6 central point to run through, the top portion of guide arm 7 is equipped with pointed cone 70, guide arm 7 is close to top position cover and is equipped with lightning protection mechanism 71, guide arm 7 intermediate position still is equipped with wiring end post 72.
In this embodiment, the support columns 2 are distributed at equal intervals in an annular shape, the base 20 is further arranged at the end of each support column 2, the round holes 200 are symmetrically formed in the base 20, the base 20 and the support columns 2 are of an integrally formed structure, and a user manually passes through the round holes 200 with bolts, so that the base 20 is conveniently fixed at the corresponding positions.
Furthermore, support column 2 and fixed disk 1 welded fastening, metal pole 3 and fixed disk 1 welded fastening increase the stability of whole device.
Secondly, metal pole 3 is the integrated into one piece structure with fixed column 5, and clearance discharge ball 30 is the integrated into one piece structure with metal pole 3, and fixed column 5 avoids metal pole 3 direct contact to lower U template 4, prevents that the electric power edge leakage from influencing the earth protection to the transformer.
Further, fixed column 5 is the integrated into one piece structure with lower U template 4, increases down U template 4 and fixed column 5 stability.
It should be noted that the upper U-shaped plate 6 and the sliding column 60 are of an integrally formed structure, the diameter of the sliding column 60 is matched with the aperture of the sliding hole 40, and the sliding column 60 is slidably connected with the sliding hole 40, so that the upper U-shaped plate 6 and the lower U-shaped plate 4 can move conveniently.
Secondly, spring 61 one end and last U template 6 bonding are fixed, and spring 61's the other end and lower U template 4 bonding are fixed, and spring 61's setting is convenient for slow down external shock, reduces the influence of shaking.
Further, the guide rod 7 and the upper U-shaped plate 6 are of an integrally formed structure.
Secondly, the pointed cone 70 and the guide rod 7 are of an integrally formed structure, the lightning protection mechanism 71 and the guide rod 7 are fixedly welded, the wiring end post 72 and the guide rod 7 are of an integrally formed structure, and the lightning protection mechanism 71 is matched with the pointed cone 70 to facilitate lightning traction and prevent lightning from influencing.
In addition, the arc discharge plate 73 is welded and fixed with the guide rod 7, the inner diameter of the arc discharge plate 73 is larger than the diameter of the gap discharge ball 30, and the gap discharge ball 30 is placed in the center of the arc discharge plate 73, so that the gap grounding discharge protection is realized conveniently.
It is worth explaining that the lightning protection mechanism 71 comprises a plurality of lightning protection plates which are arranged in a linear and equidistant manner in the vertical direction, two adjacent lightning protection plates are fixedly connected through a connecting rod, each lightning protection plate is in a round cake shape, each lightning protection plate is a copper conductor, a plurality of vertical lightning rods are further installed on the lightning protection plate on the top end, and each lightning rod is also a copper conductor. Through the lightning-arrest board of the metal system on the lightning-arrest mechanism 71, can effectively realize the effect of taking shelter from the thunder, and through the setting of the lightning rod on the lightning-arrest board, can further realize the effect of taking shelter from the thunder.
It is worth explaining that all be equipped with fixed establishment on every base 20, fixed establishment is including being conical ground pin of inserting, the surface of inserting ground pin is equipped with the screw thread, and insert ground pin top and be fixed with the spacing ring, insert ground pin is last still to overlap and be equipped with fixation nut, interlock each other between the screw thread on fixation nut and the screw thread of inserting ground pin surface, insert to the underground through inserting ground pin from round hole 200, and the ground pin is inserted in the strength rotation, because insert ground pin surface and be equipped with the screw thread, consequently insert ground pin and can insert the underground under rotatory effort, realize the fixed to base 20, then rotate the nut of inserting ground pin and make it tightly support and press the surface at base 20, realize more firm fixed to base 20, place whole device and empty.
When the neutral point gap grounding protection device is used, a user firstly connects the sliding column 60 with the sliding hole 40 in a sliding mode, one end of the spring 61 is fixedly bonded with the upper U-shaped plate 6, the other end of the spring 61 is fixedly bonded with the lower U-shaped plate 4, the lightning protection mechanism 71 is fixedly welded with the guide rod 7, the wiring end column 72 and the guide rod 7 are of an integrally formed structure, the lightning protection mechanism 71 is matched with the pointed cone 70 to facilitate lightning traction, the metal rod 3 penetrates through the fixing column 5, the gap discharging ball 30 is placed at the center of the arc discharging plate 73, the gap discharging ball 30 is attached to the arc discharging plate 73, finally the user connects a transformer needing grounding protection with the wiring end column 72 through a conducting wire, and the user manually enables a bolt to pass through the round hole 200 to fix the base 20 at a corresponding.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a neutral point clearance ground protection device, includes fixed disk (1), its characterized in that: the lightning protection device is characterized in that a plurality of supporting columns (2) are arranged on the lower surface of the fixed disk (1), a metal rod (3) is embedded in the center of the upper surface of the fixed disk (1), a fixed column (5) is sleeved on the position, close to the top, of the metal rod (3), the fixed column (5) penetrates through the lower U-shaped plate (4), a gap discharging ball (30) is mounted at the top end of the metal rod (3), sliding holes (40) are formed in the end portions of the two ends of the lower U-shaped plate (4), an upper U-shaped plate (6) is arranged above the lower U-shaped plate (4), sliding columns (60) corresponding to the sliding holes (40) are arranged on the end portions of the two ends of the upper U-shaped plate (6), a spring (61) is sleeved on each sliding column (60), a guide rod (7) penetrates through the center of the upper U-shaped plate (6), a pointed cone (70) is arranged at the top end portion, the middle position of the guide rod (7) is also provided with a wiring end post (72), and the bottom of the guide rod (7) is provided with an arc discharge plate (73).
2. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: support column (2) are the equidistant distribution of annular, just still be equipped with base (20) on support column (2) the end, round hole (200) have been seted up to the symmetry on base (20), base (20) and support column (2) are integrated into one piece structure.
3. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: support column (2) and fixed disk (1) welded fastening, metal pole (3) and fixed disk (1) welded fastening.
4. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: the metal rod (3) and the fixing column (5) are of an integrally formed structure, the gap discharge ball (30) and the metal rod (3) are of an integrally formed structure, the fixing column (5) and the lower U-shaped plate (4) are of an integrally formed structure, and the guide rod (7) and the upper U-shaped plate (6) are of an integrally formed structure.
5. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: go up U template (6) and traveller (60) and be integrated into one piece structure, the diameter of traveller (60) and the aperture looks adaptation of slide opening (40), traveller (60) and slide opening (40) sliding connection.
6. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: one end of the spring (61) is fixedly bonded with the upper U-shaped plate (6), and the other end of the spring (61) is fixedly bonded with the lower U-shaped plate (4).
7. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: the pointed cone (70) and the guide rod (7) are of an integrally formed structure, the lightning protection mechanism (71) and the guide rod (7) are fixedly welded, and the wiring end post (72) and the guide rod (7) are of an integrally formed structure.
8. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: the arc discharge plate (73) is welded and fixed with the guide rod (7), the inner diameter of the arc discharge plate (73) is larger than the diameter of the gap discharge ball (30), and the gap discharge ball (30) is placed in the center of the arc discharge plate (73).
9. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: lightning-arrest mechanism (71) include a plurality of lightning plates, the lightning plate is linear equidistant range in vertical direction, through connecting rod fixed connection, every between two adjacent lightning plates the lightning plate all is the cake form, and every lightning plate is the copper electric conductor, still installs a plurality of vertical lightning rods on the lightning plate that is located the top, the lightning rod also is the copper electric conductor.
10. A neutral point gap grounding protection apparatus as claimed in claim 1, wherein: every all be equipped with fixed establishment on base (20), fixed establishment is including being conical ground needle of inserting, the surface of inserting ground needle is equipped with the screw thread, and inserts the ground needle top and be fixed with the spacing ring, inserts still that the cover is equipped with fixation nut on the ground needle, mutual interlock between the screw thread on fixation nut and the screw thread of inserting ground needle surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133663.6A CN111342347B (en) | 2020-02-29 | 2020-02-29 | Neutral point gap grounding protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133663.6A CN111342347B (en) | 2020-02-29 | 2020-02-29 | Neutral point gap grounding protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111342347A true CN111342347A (en) | 2020-06-26 |
| CN111342347B CN111342347B (en) | 2021-11-19 |
Family
ID=71187218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010133663.6A Active CN111342347B (en) | 2020-02-29 | 2020-02-29 | Neutral point gap grounding protection device |
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| CN (1) | CN111342347B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449530A (en) * | 2015-12-29 | 2016-03-30 | 广西南宁百兰斯科技开发有限公司 | Jitter type lightning rod |
| CN207442187U (en) * | 2017-11-24 | 2018-06-01 | 浙江人通电力科技有限公司 | A kind of multi-functional lightning protection of lightning protection |
| CN207637613U (en) * | 2017-12-26 | 2018-07-20 | 保定市迅达电气有限公司 | A kind of transformer neutral point gap earth protective device |
| CN208690721U (en) * | 2018-06-25 | 2019-04-02 | 唐山市气象局 | A kind of arrester device suitable for field |
| CN110061426A (en) * | 2019-04-26 | 2019-07-26 | 山东理工职业学院 | A kind of interim lightning arrester |
-
2020
- 2020-02-29 CN CN202010133663.6A patent/CN111342347B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449530A (en) * | 2015-12-29 | 2016-03-30 | 广西南宁百兰斯科技开发有限公司 | Jitter type lightning rod |
| CN207442187U (en) * | 2017-11-24 | 2018-06-01 | 浙江人通电力科技有限公司 | A kind of multi-functional lightning protection of lightning protection |
| CN207637613U (en) * | 2017-12-26 | 2018-07-20 | 保定市迅达电气有限公司 | A kind of transformer neutral point gap earth protective device |
| CN208690721U (en) * | 2018-06-25 | 2019-04-02 | 唐山市气象局 | A kind of arrester device suitable for field |
| CN110061426A (en) * | 2019-04-26 | 2019-07-26 | 山东理工职业学院 | A kind of interim lightning arrester |
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| Publication number | Publication date |
|---|---|
| CN111342347B (en) | 2021-11-19 |
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