CN102394159A - Insulator capable of improving external insulating strength and provided with flexible shield mounting positions - Google Patents

Insulator capable of improving external insulating strength and provided with flexible shield mounting positions Download PDF

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Publication number
CN102394159A
CN102394159A CN2011103433824A CN201110343382A CN102394159A CN 102394159 A CN102394159 A CN 102394159A CN 2011103433824 A CN2011103433824 A CN 2011103433824A CN 201110343382 A CN201110343382 A CN 201110343382A CN 102394159 A CN102394159 A CN 102394159A
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CN
China
Prior art keywords
insulator
barrier
electrode
top electrode
flexibly
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Pending
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CN2011103433824A
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Chinese (zh)
Inventor
张德赛
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HUBEI XINDESAI INSULATION TECHNOLOGY Co Ltd
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HUBEI XINDESAI INSULATION TECHNOLOGY Co Ltd
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Priority to CN2011103433824A priority Critical patent/CN102394159A/en
Publication of CN102394159A publication Critical patent/CN102394159A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an insulator capable of improving the external insulating strength and provided with flexible shield mounting positions. The shields are arranged on the insulating body of the insulator or on the electrodes of the insulator; or some of the shields are arranged on the electrode and the others are arranged on the insulating body of the insulator; and a shield mounting position or a plurality of shield mounting positions is (are) arranged between the two electrodes of the insulator and expand(s) to all parts of the surface of the insulator rather than only outside the electrodes, so the shield mounting spots are more perfect and precise and the wider application of a three-element structural insulator is facilitated. According to the invention, shields in different shapes are arranged at different positions of the insulator; and shields are also arranged near an equalizing ring of a circuit composite insulator, so that the electrons sent by the electrodes have convolution space, the electrons sent by the equalizing ring are rejected, the insulation distance and creepage distance of the insulator are both increased, and the dry flash over voltage, wet flash over voltage and pollution flash over voltage of the insulator are improved.

Description

A kind ofly can improve external insulation intensity, the barrier installation site is insulator flexibly
Technical field
The present invention relates to the insulator that a kind of electric power system is used, be specially and a kind ofly can improve external insulation intensity, the barrier installation site is insulator flexibly.
Background technology
All need insulate and support in every place that has electricity to exist and pass through, and what can shoulder this dual role simultaneously is exactly insulator.
Because insulator is the overwhelming majority all work out of doors, so the service conditions of insulator is very abominable.The electric power system overwhelming majority's power outage is all relevant with the dielectric surface flashover of insulator, so the reliability service of the surface property of insulator and electric power system is closely related.
The applicant is in " a kind of insulator that can improve external insulation electric strength " (Chinese patent number 200810197722.5); Analyzed the structure of all insulating material, all kinds, all electric pressures and all alternating current-direct current insulators; Find that they structurally interosculate, all by insulating body be connected gold utensil two big elements and form, the applicant is referred to as two element structures with it; Connecting gold utensil is first element, and insulating body is second element.This patent is provided with barrier outside the top electrode of insulator, the bottom electrode peripheral hardware deposits barrier; On the insulator of long struts insulator, long compound suspension insulator and long bushing insulator, suspension electrode is set earlier, intermediate barrier is set near suspension electrode.Barrier is set outside the top electrode of insulator string, and the bottom electrode peripheral hardware deposits barrier, and intermediate barrier is established at the middle part; With two element structural changes of conventional insulators is the element structure.It is applicable to that the insulator of all insulating material, all kinds, all electric pressures and ac transmission uses insulator with insulator and direct current transportation.
So-called barrier is to add parallel with umbrella disk or vertical with umbrella disk solid insulating material in the appropriate location of insulator surface, and it has changed the surface state of insulator, can significantly improve the flashover voltage of insulator.The edge flashing of insulator is near the atmospherical discharges the insulator surface in essence; The surface of conventional insulators is an air between its two electrode; And barrier is a plurality of zones with near the air the insulator surface by an original area dividing; Barrier has and stops that moving charge enters into another regional effect from a zone, and moving charge can obtain diffusion in existing zone, makes the electric field strength reduction this zone in; Thereby the Electric Field Distribution in each zone is redistributed, made the in tension zone of Electric Field Distribution obtain relaxing.In addition, the space charge of barrier surface has changed the path of discharge, has strengthened the graded properties of discharge, has prolonged discharge time, and this can effectively improve the lightning protection level of insulator.
In addition; Barrier itself can also make insulator surface reduced by the part that rainwater waters, and plays the effect that improves wet flash-over voltage, and barrier itself has also increased creepage distance simultaneously; And barrier processed by organic material again, so improved the pollution flashover voltage of insulator again.
Because ionization always begins from electrode, again because in non-uniform electric field, near the electric field the electrode is very strong, and barrier is set near electrode, makes insulator just receive the interception of barrier in the corona stage.Therefore can improve the initial corona voltage of insulator, reduce radio interference, reduce the electric energy loss of high voltage transmission line, prolong the service life of insulator.
Because the scope of application of this patent is very extensive, it is applicable to that the insulator of all insulating material, all kinds, all electric pressures and ac transmission uses insulator with insulator and direct current transportation.So this patent is spoken of in embodiment: when the barrier of line insulator is set, consider the different of cap and pin insulator string and rod insulator insulator, also will consider the different of porcelain and composite material clavate suspension insulator simultaneously.When considering the barrier of post insulator, consider single different when many are connected.When considering the barrier of bushing insulator, consider the different of short sleeve and long sleeve pipe.When above-mentioned insulator has grading ring, also to consider corresponding barrier setting.After having considered iron tower and power transmission line factor, quantity, position and the shape that dependence is provided with barrier improves the external insulation intensity of insulator.And this patent is having limitation aspect the installation site of barrier.Promptly this patent only is provided with barrier on the insulator between insulator two electrodes, therefore for further with this patent improvement with become more meticulous, can obtain bigger popularization in order to make element structure insulator in practical application, need the new technical scheme of proposition.
Summary of the invention
The objective of the invention is to above-mentioned present situation; Aim to provide a kind of insulation distance and creepage distance that increases insulator; Improve insulator dry flashover voltage, wet flash-over voltage and pollution flashover voltage can improve external insulation intensity, the barrier installation site is insulator flexibly.
The implementation of the object of the invention does, a kind ofly can improve external insulation intensity, and the barrier installation site is insulator flexibly, on the insulator of insulator, barrier is set; Or on the electrode of insulator, barrier is set; Or the part of barrier is arranged on the electrode, a part is arranged on the insulator of insulator.
The present invention has kept all advantages that a kind of insulator patent that can improve external insulation electric strength is provided with barrier; And the barrier installation site extended to all sites of insulator surface outward by electrode; Be on the electrode of insulator and/or on the insulator of insulator; What make barrier is provided with place improvement and becoming more meticulous more, helps element structure insulator and in practical application, can obtain bigger popularization.
Description of drawings
Fig. 1 a, b are front view of the present invention, the vertical view that the top electrode of porcelain or glass dish type suspension insulator string ground connection side is provided with barrier,
Fig. 2 is the structural representation of the present invention that the top electrode of porcelain or glass dish type suspension insulator string is provided with horizontal barrier,
Fig. 3 is provided with the structural representation of the present invention of the horizontal barrier of wide cut for the top electrode of porcelain or glass dish type suspension insulator string
Fig. 4 is the structural representation of the present invention that the top electrode of porcelain or glass dish type suspension insulator string is provided with the horizontal barrier of electrode,
Fig. 5 is the structural representation of the present invention that the bottom electrode of porcelain or glass dish type suspension insulator string is provided with vertical barrier,
Fig. 6 is the structural representation of the present invention that the bottom electrode of porcelain or glass dish type suspension insulator string is provided with down horizontal barrier,
Fig. 7 is the structural representation of the present invention that the top electrode of circuit composite insulator is provided with horizontal barrier,
Fig. 8 is the structural representation of the present invention that the top electrode of circuit composite insulator is provided with barrier on the band gap,
Fig. 9 is near the structural representation of the present invention that the lower uniform pressure ring barrier is set the grading ring of circuit composite insulator bottom electrode,
Figure 10 is near the structural representation of the present invention that band gap lower uniform pressure ring barrier is set the grading ring of circuit composite insulator bottom electrode,
Figure 11 is near the structural representation of the present invention that the grading ring barrier is set the grading ring of circuit composite insulator top electrode,
Figure 12 is for being provided with the simple and easy structural representation of the present invention of going up the grading ring barrier near the grading ring of circuit composite insulator top electrode.
Embodiment
The present invention is arranged on barrier on the insulator of insulator; Or be arranged on the electrode of insulator; Or a part is arranged on the electrode, and a part is arranged on the insulator.
The present invention is detailed with reference to the accompanying drawings.
Be provided with at least near the top electrode 1 of porcelain or glass dish type suspension insulator string 5 ground connection sides one with drainage channels on barrier 3-1; Last barrier 3-1 bottom is connected with the insulator 4 of insulator; Be shaped as the sleeve shaped of opening; Can increase the insulation distance and the creepage distance of insulator, improve the dry flashover voltage and the pollution flashover voltage of insulator.
Fig. 1 a, b are provided with barrier 3-1 on two near the top electrode 1 of porcelain or glass dish type suspension insulator string 5 ground connection sides; Two rhones of going up barrier 3-1 misplace; When not arranged through the rhone of barrier; Can discharge from the rhone in another orientation, increase the reliability of its draining; And the last barrier 3-1 in the outside blocked the electronics that the utmost point 1 from power on sends, and further improved the dry flashover voltage of insulator.
With reference to Fig. 2, at the top electrode 1 of porcelain or glass dish type suspension insulator string 5 part is set and is connected, the horizontal barrier 3-2 that the bottom of the top electrode 1 of a part of and insulator is connected with the insulator 4 of insulator.Horizontal barrier 3-2 is connected with the insulator 4 of insulator, can stop the electronics that send top electrode 1 below; Horizontal barrier 3-2 is connected with the top electrode 1 of insulator, can increase the insulation distance of insulator, has improved the dry flashover voltage of insulator.
With reference to Fig. 3, at the top electrode 1 of porcelain or glass dish type suspension insulator string 5 part is set and is connected, the horizontal barrier 3-3 of wide cut that the middle and lower part of the electrode 1 of a part of and insulator is connected with the insulator 4 of insulator.The horizontal barrier 3-3 of wide cut is connected with the insulator 4 of insulator, can stop the electronics that send top electrode 1 below; Be connected with the middle and lower part of the electrode 1 of insulator, can increase more insulation distance, improved the dry flashover voltage of insulator than horizontal barrier 3-2.
With reference to Fig. 4, the horizontal barrier of electrode (3-4) is set at the middle part of the top electrode 1 of porcelain or glass dish type suspension insulator string 5.The horizontal barrier 3-4 of electrode only is connected with the middle part of the top electrode 1 of insulator, and the bottom of top electrode 1 is exposed outside, is convenient to the operator and below electrode 1, carries out operation.
With reference to Fig. 5, at the bottom electrode 2 of porcelain or glass dish type suspension insulator string 5 part is set and is connected, a part of vertical barrier 3-5 that is connected with the bottom electrode 2 of insulator with the insulator 4 of insulator.Vertical barrier 3-5 is connected with the insulator 4 of insulator, can increase the creepage distance of insulator, has improved the pollution flashover voltage of insulator, can improve the wet flash-over voltage of insulator so that insulator surface is reduced by the part that rainwater waters; Be connected with the bottom electrode 2 of insulator, can stop the electronics that bottom electrode 2 sends, improved the dry flashover voltage of insulator.
There is auxiliary barrier 3-5a the centre of vertical barrier 3-5.Auxiliary barrier 3-5a is the barrier of being processed by electric conducting material, semiconductive material or insulating material.
Auxiliary barrier 3-5a is processed by electric conducting material, has changed the corona position of electrode 2, has improved the Electric Field Distribution of insulator string, can improve the dry flashover voltage of insulator string; Also can improve near the Temperature Distribution the electrode 2, improve the pollution flashover voltage of insulator.Process by semiconductive material, can improve the Electric Field Distribution of insulator string, improve the dry flashover voltage of insulator string.Process by insulating material, increased the insulation distance of insulator, can improve the dry flashover voltage of insulator string.
With reference to Fig. 6, at the bottom electrode 2 of porcelain or glass dish type suspension insulator string 5 part is set and is connected, a part of following horizontal barrier 3-6 that is connected with the bottom electrode 2 of insulator with the insulator 4 of insulator.There is following auxiliary barrier 3-6a the centre of horizontal barrier 3-6 down.Following auxiliary barrier 3-6a is the barrier of being processed by electric conducting material, semiconductive material or insulating material.
The function of horizontal barrier 3-6 is identical with the function of vertical barrier 3-5 down, and the function of following auxiliary barrier 3-6a is identical with the function of auxiliary barrier 3-5a,
Both differences are: the Outboard Sections of vertical barrier 3-5 is vertical with umbrella disk, and the Outboard Sections of following horizontal barrier 3-6 is parallel with umbrella disk, and promptly horizontal barrier 3-6 can stop more rainwater at insulator surface down, improves the wet flash-over voltage of insulator.
With reference to Fig. 7, at the top electrode 1 of circuit composite insulator 6 part is set and is connected, a part of last horizontal barrier 3-7 that is connected with the top electrode 1 of insulator with the insulator 4 of insulator.Go up horizontal barrier 3-7 and be connected, can stop the electronics that send top electrode 1 below with the insulator 4 of insulator; Be connected with the top electrode 1 of insulator, can increase the insulation distance of insulator, improved the dry flashover voltage of insulator.
With reference to Fig. 8, be provided with at the top electrode of circuit composite insulator 61 and be connected, with barrier 3-8 on the band gap of the insulator of insulator gapped 9 with the top electrode 1 of insulator.Barrier 3-8 only is connected with the top electrode 1 of insulator on the band gap, because of and the insulator of insulator between last gap 9 is arranged, the electronics that makes the utmost point 1 from power on send has the space of circling round, and has improved the dry flashover voltage of insulator.
With reference to Fig. 9, at the grading ring 7 of the bottom electrode 2 of circuit composite insulator 6 part is set and is connected a part of lower uniform pressure ring barrier 3-9 that is connected with the bottom electrode 2 of insulator with the insulator 4 of insulator.The lower uniform pressure ring barrier has stopped the electronics that grading ring 7 sends, and has improved the dry flashover voltage of insulator.
With reference to Figure 10, be provided with at the grading ring 7 of the bottom electrode 2 of circuit composite insulator 6 and be connected, with bottom electrode 2 gapped band gap lower uniform pressure ring barrier 3-10 with the insulator 4 of insulator.Following gap 10 is arranged between band gap lower uniform pressure ring barrier 3-10 and the bottom electrode 2, and following gap has stopped the electronics that bottom electrode 2 sends, and has improved the dry flashover voltage of insulator.
With reference to Figure 11, at the grading ring 8 of the top electrode 1 of circuit composite insulator 6 part is set and is connected a part of last grading ring barrier 3-11 that is connected with the top electrode 1 of insulator with the insulator 4 of insulator.Last grading ring barrier 3-11 can stop the electronics that the grading ring 8 of top electrode sends, and has improved the dry flashover voltage of insulator.
With reference to Figure 12, grading ring barrier 3-12 on be connected with the insulator 4 of insulator simple and easy is set at the grading ring 8 of the top electrode 1 of circuit composite insulator 6.The simple and easy grading ring barrier 3-12 that goes up has stopped the electronics that the grading ring 8 of top electrode sends, and has improved the dry flashover voltage of insulator.

Claims (15)

1. one kind can be improved external insulation intensity, and the barrier installation site is insulator flexibly, it is characterized in that on the insulator of insulator, barrier being set; Or on the electrode of insulator, barrier is set; Or the part of barrier is arranged on the electrode, a part is arranged on the insulator of insulator.
2. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that near the top electrode (1) of porcelain or glass dish type suspension insulator string (5) ground connection side, being provided with at least a last barrier (3-1) with drainage channels; Last barrier (3-1) bottom is connected with the insulator (4) of insulator, is shaped as the sleeve shaped of opening.
3. according to claim 2ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly, it is characterized in that near two rhones of going up barrier (3-1) that the top electrode (1) of porcelain or glass dish type suspension insulator string (5) ground connection side, are provided with misplace.
4. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that top electrode (1) at porcelain or glass dish type suspension insulator string (5) is provided with a part and is connected a part of horizontal barrier (3-2) that is connected with the bottom of insulator top electrode (1) with the insulator (4) of insulator.
5. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that top electrode (1) at porcelain or glass dish type suspension insulator string (5) is provided with a part and is connected a part of horizontal barrier of wide cut (3-3) that is connected with the middle and lower part of insulator top electrode (1) with the insulator (4) of insulator.
6. according to claim 1ly a kind ofly can improve external insulation intensity, the barrier installation site is insulator flexibly, it is characterized in that at the middle part of porcelain or glass dish type suspension insulator string (5) top electrode (1) the horizontal barrier of electrode (3-4) being set.
7. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that bottom electrode (2) at porcelain or glass dish type suspension insulator string (5) is provided with a part and is connected a part of vertical barrier (3-5) that is connected with the bottom electrode (2) of insulator with the insulator (4) of insulator.
8. according to claim 7ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; There is auxiliary barrier (3-5a) centre that it is characterized in that vertical barrier (3-5), and auxiliary barrier (3-5a) is the barrier of being processed by electric conducting material, semiconductive material or insulating material.
9. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that bottom electrode (2) at porcelain or glass dish type suspension insulator string (5) is provided with a part and is connected with the insulator (4) of insulator; The following horizontal barrier (3-6) that a part is connected with the bottom electrode (2) of insulator has following auxiliary barrier (3-6a) in the middle of the following horizontal barrier.
10. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; The top electrode (1) that it is characterized in that circuit composite insulator (6) is provided with a part and is connected with the insulator (4) of insulator, a part of last horizontal barrier (3-7) that is connected with the top electrode of insulator.
11. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that top electrode (1) in circuit composite insulator (6) is provided with a part and is connected with the top electrode of insulator, insulator a part of and insulator has barrier (3-8) on the band gap of last gap (9).
12. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that grading ring (7) at the bottom electrode (2) of circuit composite insulator (6) is provided with a part and is connected a part of lower uniform pressure ring barrier (3-9) that is connected with the bottom electrode (2) of insulator with the insulator (4) of insulator.
13. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that being connected with the insulator (4) of insulator, the band gap lower uniform pressure ring barrier (3-10) in following gap (10) is arranged with bottom electrode (2) the setting of the grading ring (7) of circuit composite insulator (6) bottom electrode (2).
14. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly; It is characterized in that grading ring (8) at the top electrode (1) of circuit composite insulator (6) is provided with a part and is connected a part of last grading ring barrier (3-11) that is connected with the top electrode (1) of insulator with the insulator (4) of insulator.
15. according to claim 1ly a kind ofly can improve external insulation intensity; The barrier installation site is insulator flexibly, it is characterized in that grading ring (8) setting at the top electrode (1) of circuit composite insulator (6) is connected with the insulator (4) of insulator simple and easy on grading ring barrier (3-12).
CN2011103433824A 2011-11-03 2011-11-03 Insulator capable of improving external insulating strength and provided with flexible shield mounting positions Pending CN102394159A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103700452A (en) * 2014-01-07 2014-04-02 湖北鑫德赛绝缘技术有限公司 Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings
CN105845290B (en) * 2016-05-26 2017-10-13 国网新疆电力公司乌鲁木齐供电公司 A kind of rod insulator Composite Insulators free of replacement
CN110767395A (en) * 2019-11-29 2020-02-07 中国南方电网有限责任公司超高压输电公司广州局 Prevent dredging integral type arrester base

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0589735A (en) * 1991-09-26 1993-04-09 Ngk Insulators Ltd Suspension insulator
CN101409120A (en) * 2008-11-20 2009-04-15 武汉市德赛电力设备有限公司 Insulator capable of improving external insulation electric strength
CN201331982Y (en) * 2008-11-20 2009-10-21 武汉市德赛电力设备有限公司 Insulator capable of enhancing external insulation electric strength
US20110030993A1 (en) * 2009-08-04 2011-02-10 Thomas Birrer Corona shield and composite insulator with corona shield
CN202405016U (en) * 2011-11-03 2012-08-29 湖北鑫德赛绝缘技术有限公司 Insulator capable of raising external insulation intensity and having flexible barrier installation positions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0589735A (en) * 1991-09-26 1993-04-09 Ngk Insulators Ltd Suspension insulator
CN101409120A (en) * 2008-11-20 2009-04-15 武汉市德赛电力设备有限公司 Insulator capable of improving external insulation electric strength
CN201331982Y (en) * 2008-11-20 2009-10-21 武汉市德赛电力设备有限公司 Insulator capable of enhancing external insulation electric strength
US20110030993A1 (en) * 2009-08-04 2011-02-10 Thomas Birrer Corona shield and composite insulator with corona shield
CN202405016U (en) * 2011-11-03 2012-08-29 湖北鑫德赛绝缘技术有限公司 Insulator capable of raising external insulation intensity and having flexible barrier installation positions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103700452A (en) * 2014-01-07 2014-04-02 湖北鑫德赛绝缘技术有限公司 Insulator capable of reducing corona loss and electromagnetic wave interference and improving anticorrosion capability of hardware fittings
CN103700452B (en) * 2014-01-07 2016-09-28 湖北德赛绝缘设备技术发展有限公司 Corona loss and Electromagnetic Interference and the insulator of raising gold utensil efficiency of preservation can be reduced
CN105845290B (en) * 2016-05-26 2017-10-13 国网新疆电力公司乌鲁木齐供电公司 A kind of rod insulator Composite Insulators free of replacement
CN110767395A (en) * 2019-11-29 2020-02-07 中国南方电网有限责任公司超高压输电公司广州局 Prevent dredging integral type arrester base

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Application publication date: 20120328