CN107438356A - A kind of electric leakage screening arrangement of electric ceramic lightning arrester - Google Patents
A kind of electric leakage screening arrangement of electric ceramic lightning arrester Download PDFInfo
- Publication number
- CN107438356A CN107438356A CN201710672718.9A CN201710672718A CN107438356A CN 107438356 A CN107438356 A CN 107438356A CN 201710672718 A CN201710672718 A CN 201710672718A CN 107438356 A CN107438356 A CN 107438356A
- Authority
- CN
- China
- Prior art keywords
- mirror image
- iron core
- vertical magnetic
- lightning arrester
- screening arrangement
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The invention discloses a kind of electric leakage screening arrangement of electric ceramic lightning arrester,Including vertical magnetic masking layer and mirror image material layer,The vertical magnetic masking layer and the perpendicular placement of mirror image material layer,The upper surface of the vertical magnetic masking layer is also installed with steel plate,Magnetic shield panel is additionally provided with the right flank of the steel plate,The magnetic shield panel and mirror image material layer are horizontal positioned,Mirror image iron core is also installed with the left surface of the steel plate,Mirror image coil is additionally provided with the left surface of the mirror image iron core,The right-hand member of the mirror image material layer is additionally provided with excitation iron core,Excitation coil is provided with the two sides of the excitation iron core,High-intensity magnetic field is produced using the excitation coil with iron core,Caused vortex can be preferably minimized by the magnetic screen lamination outside excitation coil,Core section is rectangle,Add leakage field area,Effectively reduce iron core weight,Improve the shield effectiveness of electric leakage screening arrangement.
Description
Technical field
The present invention relates to electric leakage screening arrangement technical field, the electric leakage screening arrangement of specially a kind of electric ceramic lightning arrester.
Background technology
With expanding economy and the progress of science and technology, people are increasing for the usage amount of arrester, especially exist
At high roof, require higher for the overall performance of arrester, current existing arrester also has one in terms of detection of electrical leakage
The defects of determining：
(1) the electric leak detecting device research at present for arrester is relatively fewer, existing electricity supply and use equipment and its all kinds of
Arrester device is through after a period of time, due to the aging of insulation, going bad, often producing electric leakage, cause apparatus insulated hit
Wear, burn, or even the major accident such as cause casualties；
(2) existing arrester device bear for a long time too high spread voltage and electric-field intensity easily cause insulator breakdown or
Accelerated ageing, its insulating properties is destroyed, influence the safe and stable operation of circuit, service life is shorter；
(3) do not have the measurement apparatus of equipment in itself on existing electric leak detecting device, it is impossible to which equipment is carried out in itself yet
Detection, practicality is not strong, not easy-maintaining.
The content of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of electric leakage screening arrangement of electric ceramic lightning arrester, adopted
High-intensity magnetic field is produced with the excitation coil with iron core, can obtain and become device, reactor etc. with the large-scale power of Large Copacity, high-capacity
Suitable leakage field field strength inside electromagnetic product, caused vortex can be dropped to most by the magnetic screen lamination outside excitation coil
Low, core section is rectangle, adds leakage field area, effectively reduces iron core weight, improves the shielding of electric leakage screening arrangement
Effect, it can effectively solve the problem that the problem of background technology proposes.
The technical solution adopted for the present invention to solve the technical problems is：A kind of electric leakage screening arrangement of electric ceramic lightning arrester,
Including vertical magnetic masking layer and mirror image material layer, the vertical magnetic masking layer and the perpendicular placement of mirror image material layer, and mirror image material
The bed of material is arranged on the upper surface of vertical magnetic masking layer, and the upper surface of the vertical magnetic masking layer is also installed with steel plate, described
Magnetic shield panel is additionally provided with the right flank of steel plate, the magnetic shield panel and mirror image material layer are horizontal positioned, and mirror image material layer
The right-hand member of magnetic shield panel is arranged on, mirror image iron core, and the lower end of mirror image iron core are also installed with the left surface of the steel plate
It is fixedly connected with the upper surface of vertical magnetic masking layer, mirror image coil, the mirror is additionally provided with the left surface of the mirror image iron core
As the right-hand member of material layer is additionally provided with excitation iron core, the bottom of the excitation iron core and the upper surface fixation company of vertical magnetic masking layer
Connect, excitation coil is provided with the two sides of the excitation iron core.
As a kind of technical scheme for having choosing of the present invention, the surrounding of the vertical magnetic masking layer is equipped with multiple shading rings,
And multiple shading rings are symmetrically distributed in the upper surface of vertical magnetic masking layer.
As a kind of technical scheme for having choosing of the present invention, the upper surface of the vertical magnetic masking layer is additionally provided with multiple pillars
Insulator, the support insulator are symmetrically distributed in the corner of vertical magnetic masking layer.
As a kind of technical scheme for having choosing of the present invention, the outer surface of the support insulator is provided with epoxy winding pipe,
And urethane material is also filled with the inside of support insulator, also it is fixedly mounted at the center of inside of the support insulator
There is plug, and urethane material is laid on the outer surface of plug.
As a kind of technical scheme for having choosing of the present invention, the outer surface of the epoxy winding pipe is also equipped with silicon rubber shield
Set.
As a kind of technical scheme for having choosing of the present invention, the excitation coil is in the form of a column structure, in the inwall of excitation coil
Upper to set cored rod, the outer surface also magnetic connects of the excitation coil shielding laminates.
As a kind of technical scheme for having choosing of the present invention, measurement line is also wound with the outer surface of the shielding laminates
Circle, the measuring coil structure annular in shape.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention in the upper surface of vertical magnetic masking layer is provided with shading ring and support insulator, using shading ring with
The ferromagnetic material on top improves shield effectiveness together, using support insulator as pillar can with zinc oxide surge arresters main body mechanism,
Support insulator haves three layers structure, and innermost layer is packing material polyurethane, and intermediate layer is epoxy winding pipe, and outermost layer is silicon rubber
Sheath, respectively along support insulator and lightning arrester body surface, Electric Field Distribution curve is intercepted along high-pressure side to low pressure side direction,
Support insulator and lightning arrester body subregion field strength broad in the middle are relatively low, and high field area is concentrated mainly on lightning arrester body
Near at high and low pressure side, highest field strength appears in the high-pressure side of support insulator and lightning arrester body, by by support insulator
Being tilted with lightning arrester body prevents so that the lightning shielding effect of lightning arrester body improves；
(2) present invention produces high-intensity magnetic field using with excitation coil unshakable in one's determination, can obtain with Large Copacity, high-capacity it is big
Type electric power becomes leakage field field strength suitable inside the electromagnetic products such as device, reactor, can be folded by the magnetic screen outside excitation coil
Caused vortex is preferably minimized by piece, and core section is rectangle, adds leakage field area, effectively reduces iron core weight, is improved
The shield effectiveness of electric leakage screening arrangement.
(3) led on the outside of excitation coil of the invention using detection interface of the annular measuring coil as electric leakage screening arrangement
The transient voltage data (voltage waveform may distort) crossed in the measuring coil measured carry out integral and calculating to the time, obtain
The Wave data of transient state interlinkage flux in baby's steel disc of measuring coil wrapping, takes its maximum, obtains magnetic flux maximum, remove
With the effective area of the osmanthus steel disc included in the coil, the maximum of the average flux density of relevant position is obtained, can be passed through
Measuring coil detects the shield effectiveness of the electric leakage screening arrangement, is easy to repair the leakage field device, practical.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the vertical magnetic masking layer cross-sectional view of the present invention；
Fig. 3 is the support insulator structural representation of the present invention；
Fig. 4 is the excitation coil structural representation of the present invention.
In figure：The vertical magnetic masking layers of 1-；2- steel plates；3- magnetic shield panels；4- mirror image material layers；5- encourages iron core；6- is encouraged
Coil；7- mirror image iron cores；8- mirror image coils；9- shading rings；10- support insulators；11- silicone rubber jackets；12- epoxies are wound
Pipe；13- urethane materials；14- plugs；15- iron core rods；16- shields laminates；17- measuring coils.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The explanation of following embodiment is refer to the attached drawing, can be to the specific embodiment implemented to the example present invention.
The direction and position term that the present invention is previously mentioned, for example, " on ", " in ", " under ", "front", "rear", "left", "right", " interior ", "
Outside ", " side " etc., only it is direction and position with reference to annexed drawings.Therefore, the direction and position term used is to illustrate
And understand the present invention, and it is not used to the limitation present invention.
Embodiment：
As shown in Figures 1 to 4, the invention provides a kind of electric leakage screening arrangement of electric ceramic lightning arrester, including vertical magnetic cup
Layer 1 and mirror image material layer 4 are covered, the vertical magnetic screen is to use silicon steel sheet of the size for 860*20mm, and stack width is
200mm, fixed with binding strap, the vertical magnetic masking layer 1 and the 4 perpendicular placement of mirror image material layer, and mirror image material layer 4 is set
In the upper surface of vertical magnetic masking layer 1, the upper surface of the vertical magnetic masking layer 1 is also installed with steel plate 2, the steel plate 2
Right flank on be additionally provided with magnetic shield panel 3, the magnetic shield panel 3 and mirror image material layer 4 are horizontal positioned, and mirror image material layer 4
The right-hand member of magnetic shield panel 3 is arranged on, is also installed with mirror image iron core 7 on the left surface of the steel plate 2, and mirror image iron core 7
Lower end is fixedly connected with the upper surface of vertical magnetic masking layer 1, and mirror image coil 8 is additionally provided with the left surface of the mirror image iron core 7,
The right-hand member of the mirror image material layer 4 is additionally provided with excitation iron core 5, bottom and the vertical magnetic masking layer 1 of the excitation iron core 5 it is upper
Surface is fixedly connected, and is provided with excitation coil 6 on the two sides of the excitation iron core 5, the magnetic shield panel 3 towards coil sides can
Approximation regards magnetic field normal direction border (thinking that the magnetic flux on the surface is vertical), and steel plate 2 and magnetic shield panel 3 and mirror image iron core 7 as
The double mirror image patterns unshakable in one's determination of generation, the loss of iron core, coil stimulating component that can be under fictitious load operating mode under no-load condition, should
Double images method unshakable in one's determination can effective detection electric leakage screening arrangement shield effectiveness.
The surrounding of the vertical magnetic masking layer 1 is equipped with multiple shading rings 9, and multiple shading rings 9 be symmetrically distributed in it is vertical
The upper surface of formula magnetic masking layer 1；The upper surface of the vertical magnetic masking layer 1 is additionally provided with multiple support insulators 10, the branch
Post insulator 10 is symmetrically distributed in the corner of vertical magnetic masking layer 1, and the outer surface of the support insulator 10 is provided with ring
Oxygen winding pipe 12, and urethane material 13 is also filled with the inside of support insulator 10, the support insulator 10 it is interior
Portion's centre is also installed with plug 14, and urethane material 13 is laid on the outer surface of plug 14；The epoxy winding
The outer surface of pipe 12 is also equipped with silicone rubber jacket 11, on the surface of support insulator 10 using insulating materials shielding arrester sheet
Body so that magnetic effect caused by lightning arrester body surface does not interfere with the vertical magnetic masking layer 1 of lower end.
The excitation coil 6 is in the form of a column structure, and cored rod 15, the excitation line are set on the inwall of excitation coil 6
The outer surface also magnetic connects of circle 6 shielding laminates 16；Measuring coil is also wound with the outer surface of the shielding laminates 16
17,17 structure annular in shape of measuring coil, the diameter of wire of coiling measuring coil 17 is 0.04mm, and position is located in coil
On heart cross section.Measuring coil 17 is close to baby's steel disc coiling, it is believed that does not have between measuring coil 17 and the silicon steel sheet being wrapped
There is air gap..
In summary, the main characteristic of the invention lies in that：
(1) present invention in the upper surface of vertical magnetic masking layer is provided with shading ring and support insulator, using shading ring with
The ferromagnetic material on top improves shield effectiveness together, using support insulator as pillar can with zinc oxide surge arresters main body mechanism,
Support insulator haves three layers structure, and innermost layer is packing material polyurethane, and intermediate layer is epoxy winding pipe, and outermost layer is silicon rubber
Sheath, respectively along support insulator and lightning arrester body surface, Electric Field Distribution curve is intercepted along high-pressure side to low pressure side direction,
Support insulator and lightning arrester body subregion field strength broad in the middle are relatively low, and high field area is concentrated mainly on lightning arrester body
Near at high and low pressure side, highest field strength appears in the high-pressure side of support insulator and lightning arrester body, by by support insulator
Being tilted with lightning arrester body prevents so that the lightning shielding effect of lightning arrester body improves；
(2) present invention produces high-intensity magnetic field using with excitation coil unshakable in one's determination, can obtain with Large Copacity, high-capacity it is big
Type electric power becomes leakage field field strength suitable inside the electromagnetic products such as device, reactor, can be folded by the magnetic screen outside excitation coil
Caused vortex is preferably minimized by piece, and core section is rectangle, adds leakage field area, effectively reduces iron core weight, is improved
The shield effectiveness of electric leakage screening arrangement.
(3) led on the outside of excitation coil of the invention using detection interface of the annular measuring coil as electric leakage screening arrangement
The transient voltage data (voltage waveform may distort) crossed in the measuring coil measured carry out integral and calculating to the time, obtain
The Wave data of transient state interlinkage flux in baby's steel disc of measuring coil wrapping, takes its maximum, obtains magnetic flux maximum, remove
With the effective area of the osmanthus steel disc included in the coil, the maximum of the average flux density of relevant position is obtained, can be passed through
Measuring coil detects the shield effectiveness of the electric leakage screening arrangement, is easy to repair the leakage field device, practical.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Claims (7)
- A kind of 1. electric leakage screening arrangement of electric ceramic lightning arrester, it is characterised in that：Including vertical magnetic masking layer (1) and mirror image material layer (4), the vertical magnetic masking layer (1) and mirror image material layer (4) perpendicular placement, and mirror image material layer (4) is arranged on vertical magnetic The upper surface of screen layer (1), the upper surface of the vertical magnetic masking layer (1) are also installed with steel plate (2), the steel plate (2) Right flank on be additionally provided with magnetic shield panel (3), the magnetic shield panel (3) and mirror image material layer (4) are horizontal positioned, and mirror image material The bed of material (4) is arranged on the right-hand member of magnetic shield panel (3), and mirror image iron core (7) is also installed with the left surface of the steel plate (2), And the lower end of mirror image iron core (7) is fixedly connected with the upper surface of vertical magnetic masking layer (1), the left surface of the mirror image iron core (7) On be additionally provided with mirror image coil (8), the right-hand member of the mirror image material layer (4) is additionally provided with excitation iron core (5), the excitation iron core (5) bottom is fixedly connected with the upper surface of vertical magnetic masking layer (1), is provided with the two sides of the excitation iron core (5) Excitation coil (6).
- A kind of 2. electric leakage screening arrangement of electric ceramic lightning arrester according to claim 1, it is characterised in that：The vertical magnetic cup The surrounding for covering layer (1) is equipped with multiple shading rings (9), and multiple shading rings (9) are symmetrically distributed in vertical magnetic masking layer (1) Upper surface.
- A kind of 3. electric leakage screening arrangement of electric ceramic lightning arrester according to claim 1, it is characterised in that：The vertical magnetic cup The upper surface for covering layer (1) is additionally provided with multiple support insulators (10), and the support insulator (10) is symmetrically distributed in vertical The corner of magnetic masking layer (1).
- A kind of 4. electric leakage screening arrangement of electric ceramic lightning arrester according to claim 3, it is characterised in that：The post insulator The outer surface of sub (10) is provided with epoxy winding pipe (12), and is also filled with polyurethane material in the inside of support insulator (10) Layer (13), plug (14), and urethane material (13) are also installed with the center of inside of the support insulator (10) It is laid on the outer surface of plug (14).
- A kind of 5. electric leakage screening arrangement of electric ceramic lightning arrester according to claim 4, it is characterised in that：The epoxy winding The outer surface of pipe (12) is also equipped with silicone rubber jacket (11).
- A kind of 6. electric leakage screening arrangement of electric ceramic lightning arrester according to claim 1, it is characterised in that：The excitation coil (6) structure is in the form of a column, cored rod (15) is set on the inwall of excitation coil (6), and the outer surface of the excitation coil (6) is also Magnetic connects shielding laminates (16).
- A kind of 7. electric leakage screening arrangement of electric ceramic lightning arrester according to claim 6, it is characterised in that：The shielding stacking Measuring coil (17), the measuring coil (17) structure annular in shape are also wound with the outer surface of piece (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672718.9A CN107438356B (en) | 2017-08-08 | 2017-08-08 | A kind of electric leakage screening arrangement of electric ceramic lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672718.9A CN107438356B (en) | 2017-08-08 | 2017-08-08 | A kind of electric leakage screening arrangement of electric ceramic lightning arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107438356A true CN107438356A (en) | 2017-12-05 |
| CN107438356B CN107438356B (en) | 2019-08-06 |
Family
ID=60460366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710672718.9A Active CN107438356B (en) | 2017-08-08 | 2017-08-08 | A kind of electric leakage screening arrangement of electric ceramic lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107438356B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801970A (en) * | 2018-06-11 | 2018-11-13 | 清华大学深圳研究生院 | The detection method of support insulator boundary defect and interface state |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11150004A (en) * | 1997-11-18 | 1999-06-02 | Toshiba Corp | Method for measuring leakage current for resistance and device therefor |
| CN101872957A (en) * | 2009-04-27 | 2010-10-27 | 黄华道 | Leakage current detection protection circuit |
| CN201774223U (en) * | 2009-11-19 | 2011-03-23 | 黄华道 | Electricity leakage detection protecting circuit |
| CN102944738A (en) * | 2012-12-07 | 2013-02-27 | 上海市电力公司 | Detection system and detection method for leakage current of switchgear arrester |
| CN105223433A (en) * | 2015-08-26 | 2016-01-06 | 芜湖市凯鑫避雷器有限责任公司 | Metal oxide arrester on-line monitoring system |
-
2017
- 2017-08-08 CN CN201710672718.9A patent/CN107438356B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11150004A (en) * | 1997-11-18 | 1999-06-02 | Toshiba Corp | Method for measuring leakage current for resistance and device therefor |
| CN101872957A (en) * | 2009-04-27 | 2010-10-27 | 黄华道 | Leakage current detection protection circuit |
| CN201774223U (en) * | 2009-11-19 | 2011-03-23 | 黄华道 | Electricity leakage detection protecting circuit |
| CN102944738A (en) * | 2012-12-07 | 2013-02-27 | 上海市电力公司 | Detection system and detection method for leakage current of switchgear arrester |
| CN105223433A (en) * | 2015-08-26 | 2016-01-06 | 芜湖市凯鑫避雷器有限责任公司 | Metal oxide arrester on-line monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801970A (en) * | 2018-06-11 | 2018-11-13 | 清华大学深圳研究生院 | The detection method of support insulator boundary defect and interface state |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107438356B (en) | 2019-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2395088T3 (en) | A fault current limiter | |
| CN202632985U (en) | Novel high-frequency transformer | |
| CN201549358U (en) | High-capacity voltage transformer capable of reducing local electric discharge | |
| CN107438356B (en) | A kind of electric leakage screening arrangement of electric ceramic lightning arrester | |
| CN201421774Y (en) | Electromagnetic shielding device of mutual inductor | |
| CN201282020Y (en) | Capacitor admittance gas insulated electromagnetic voltage transformer | |
| CN203325630U (en) | Dry-type air-core reactor for magnetic shielding | |
| CN101192467B (en) | Amorphous alloy ground transformer body structure | |
| GB2491641A (en) | Saturated core fault current limiter | |
| CN204407172U (en) | A kind of voltage transformer of anti-high-voltage impact | |
| CN204792370U (en) | Toroidal transformer | |
| CN107516588A (en) | A kind of paralleling reactor of extra-high voltage device body combination electricity, magnet shielding structure | |
| CN102479604A (en) | Single-phase insulating and rectifying transformer | |
| CN203456220U (en) | Ultrahigh-voltage dry type hollow smoothing reactor | |
| CN110010319A (en) | Full transposition multiply circle twisted wire and wound form noninductive resistor | |
| CN213277693U (en) | Burnout prevention device of oil-immersed high-voltage transformer | |
| CN201975776U (en) | Device capable of reducing steepness of lightning intruding wave onto transformer | |
| CN211929246U (en) | Novel core type transformer with staggered windings | |
| CN202695120U (en) | Armored shielded high-voltage test transformer | |
| EP2671298B1 (en) | Fault current limiter with shield and adjacent cores | |
| CN207263817U (en) | A kind of open type Rogowski coil | |
| CN205723122U (en) | Paralleling reactor of extra-high voltage device body combination electricity, magnet shielding structure | |
| CN111145984A (en) | Novel core type transformer with staggered windings | |
| CN205452013U (en) | Flame -proof type multivoltage unsteady flow is dry -type transformer and mobile substation for mobile substation | |
| CN107578905A (en) | A kind of structure and method for improving voltage transformer partial discharge performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |