CN202977022U - 750kV icing flashover preventing composite insulator chain - Google Patents
750kV icing flashover preventing composite insulator chain Download PDFInfo
- Publication number
- CN202977022U CN202977022U CN 201220704661 CN201220704661U CN202977022U CN 202977022 U CN202977022 U CN 202977022U CN 201220704661 CN201220704661 CN 201220704661 CN 201220704661 U CN201220704661 U CN 201220704661U CN 202977022 U CN202977022 U CN 202977022U
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- CN
- China
- Prior art keywords
- retainer ring
- full skirt
- insulator string
- umbrella
- cleaning sheet
- 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.)
- Expired - Fee Related
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 52
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000004140 cleaning Methods 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 238000011160 research Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
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Abstract
The utility model relates to a 750kV icing flashover preventing composite insulator chain. The composite insulator chain comprises a big umbrella skirt and a cleaning device. The composite insulator chain is characterized in that the big umbrella skirt comprises a big umbrella skirt I (6a) and a big umbrella skirt II (6b); the cleaning device comprises cleaning sheets (2), blades (3), a brush head (4) and a fixed ring (5); the cleaning sheets (2) are in a C shape; the brush head (4) is fixed on the C -shaped inner sides of the cleaning sheets (2); the outer edge shape of the brush head (4) is matched with the appearance of an umbrella disc (1) of a sub umbrella of the insulator chain; and the blades are fixedly arranged in the middles of the C -shaped outer sides of a part of all the cleaning sheets (2). The 750kV icing flashover preventing composite insulator chain has the advantages of reasonable structure and reliable performance, and can effectively improve the alternating-current flashover voltage of a pollution icing composite insulator. Therefore, the composite insulator chain has great social and economic benefits.
Description
Technical field
The utility model relates to a kind of 750kV anti-ice-flashing composite insulator string.More specifically, the utility model relates to a kind of 750kV anti-ice-flashing composite insulator string with clearing apparatus.
Background technology
The high-voltage fence operation troubles is because defective insulation is caused mostly, and the high-voltage fence insulator is the weak link of high-voltage fence insulation.The insulator string icing flashover is one of accident of serious harm safe operation of power system, by the safe operation with the serious harm electrical network of the accident of its initiation.Due to the frequent generation of ice damage accident, harmfulness is large, area is wide, and once large accident tends to cause many circuits of areal to trip simultaneously, and icing particularly filthy icing causes great concern on the impact of insulator string electrical characteristic.
Since last century the fifties, with regard to beginning, the covering ice for insulator problem has been studied both at home and abroad.Many countries have carried out more research to the short string of--icing insulator (5～7) flashover property.But up to now, the research of doing all also exists certain limitation, as go here and there long shorter, the research method disunity, and to the research of anti-ice-flashing measure seldom, particularly to the researches of the above long-string insulator anti-ice-flashing of 750kV measure, also fail to propose the filthy icing synthetic insulator of best raising and exchange optimizing structure of flashover voltage.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, be provided at a kind of 750kV anti-ice-flashing composite insulator string, every slice, thin piece umbrella of this 750kV anti-ice-flashing composite insulator string is with clearing apparatus, and the filth of energy global purge insulator surface is to reduce the probability of flashover phenomenon generation.Large full skirt external diameter is large, and the continuous icicle of difficult formation can not cause rain to dodge when ice dissolution yet.
The technical solution of the utility model is a kind of 750kV anti-ice-flashing composite insulator string, comprises large full skirt and clearing apparatus, and described insulator string string has the sub-umbrella of 160-220 sheet diameter of phi 150-Φ 160mm.
Described large full skirt comprises large full skirt one and large full skirt two, large full skirt footpath always is Φ 300mm, it is arranged on axis on the sub-umbrella of insulator string topmost, large full skirt two has a plurality of, its diameter is Φ 300mm, the large full skirt two of topmost is installed on the axis of insulator string at 767mm under large full skirts one place, and other large full skirt two is arranged on the axis (7) of insulator string with the interval of 767mm.
described clearing apparatus comprises cleaning sheet, fan blade, brush and retainer ring, described cleaning sheet be shaped as " C " shape, described brush is fixed in the inboard of cleaning sheet " C " shape, brush outer rim shape matches with the umbrella disk profile of the sub-umbrella of insulator string, retainer ring is divided into individual layer retainer ring and double-deck retainer ring, have single circumferential uniform bayonet socket on the outer surface of individual layer retainer ring, have on the outer surface of double-deck retainer ring and be arranged as vertically double circumferential uniform bayonet socket, two individual layer retainer rings that stack and double-deck retainer ring interlaced arrangement are enclosed within on the umbrella disk and the axis between large full skirt of sub-umbrella of insulator string, every layer of umbrella disk installed at least one cover with the cleaning sheet of brush, one end of " C " shape of this cleaning sheet is stuck on bayonet socket on the retainer ring on this umbrella disk top, the other end of " C " shape of this cleaning sheet is stuck on bayonet socket on the retainer ring of this umbrella disk bottom, the outer middle side part fixed installation fan blade of " C " shape of the part cleaning sheet in whole cleaning sheets of installing.
Further, described every layer of umbrella disk installed three covers with the cleaning sheet of brush, and be circumferentially uniform along retainer ring.
Further, the material of described cleaning sheet, fan blade, brush and retainer ring is silicon rubber.
The beneficial effects of the utility model are:
750kV anti-ice-flashing composite insulator string of the present invention has the alternate insulator string compound mode of size diameter, improved the average icing bridging time of insulator string, improved the electric property of--icing insulator string, when icing, this insulator string flashover voltage obviously improves; Simultaneously, because the extra-large shed external diameter is large, the continuous icicle of difficult formation can not cause rain to dodge when ice dissolution yet.The cleaning sheet of clearing apparatus is according to the umbrella disk shape design of the stacked sub-umbrella of insulator, so that brush can be clean with the insulator surface cleaning.Thereby reduce the probability that the flashover phenomenon occurs.That product has advantages of is rational in infrastructure, dependable performance, can effectively improve filthy icing composite insulator and exchange flashover voltage.Therefore, have very large society and economic benefit.
Description of drawings
Fig. 1 is 750kV anti-ice-flashing composite insulator string structural representation of the present utility model;
Fig. 2 is 750kV anti-ice-flashing composite insulator string of the present utility model top partial structurtes schematic diagram;
Fig. 3 is partial structurtes schematic diagram in the middle part of 750kV anti-ice-flashing composite insulator string of the present utility model;
Fig. 4 is 750kV anti-ice-flashing composite insulator string of the present utility model cross section schematic top plan view;
Fig. 5 is cleaning sheet, fan blade, the brush schematic diagram of clearing apparatus of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Fig. 1-4, a kind of 750kV anti-ice-flashing composite insulator string of the present utility model comprises large full skirt and clearing apparatus, and described insulator string string has 160-220 sheet diameter of phi 150-Φ 160mm composite insulator umbrella.The upper surface of sub-umbrella umbrella disk and the angle of horizontal plane are 4 °, and the angle of lower surface and horizontal plane is 1 °.
Claims (3)
1. a 750kV anti-ice-flashing composite insulator string, is characterized in that comprising large full skirt and clearing apparatus, and described insulator string string has the sub-umbrella of 160-220 sheet diameter of phi 150-Φ 160mm,
Described large full skirt comprises large full skirt one (6a) and large full skirt two (6b), large full skirt one (6a) diameter is Φ 300mm, it is arranged on axis (7) on the sub-umbrella of insulator string topmost, large full skirt two (6b) has a plurality of, its diameter is Φ 300mm, the large full skirt two (6b) of topmost is installed on the axis (7) of insulator string at 767mm under large full skirt one (6a) place, and other large full skirt two (6b) is arranged on the axis (7) of insulator string with the interval of 767mm
described clearing apparatus comprises cleaning sheet (2), fan blade (3), brush (4) and retainer ring (5), described cleaning sheet (2) be shaped as " C " shape, described brush (4) is fixed in the inboard of cleaning sheet (2) " C " shape, brush (4) outer rim shape matches with umbrella disk (1) profile of the sub-umbrella of insulator string, retainer ring is divided into individual layer retainer ring and double-deck retainer ring, have single circumferential uniform bayonet socket on the outer surface of individual layer retainer ring, have on the outer surface of double-deck retainer ring and be arranged as vertically double circumferential uniform bayonet socket, two individual layer retainer rings that stack and double-deck retainer ring interlaced arrangement are enclosed within on the umbrella disk (1) and the axis (7) between large full skirt of the sub-umbrella of insulator string, every layer of umbrella disk (1) installed at least one cover with the cleaning sheet (2) of brush (4), one end of " C " shape of this cleaning sheet (2) is stuck on bayonet socket on the retainer ring (5) on this umbrella disk (1) top, the other end of " C " shape of this cleaning sheet (2) is stuck on bayonet socket on the retainer ring (5) of this umbrella disk (1) bottom, the outer middle side part fixed installation fan blade of " C " shape of the part cleaning sheet (2) in whole cleaning sheets (2) of installing.
2. a kind of 750kV anti-ice-flashing composite insulator string as claimed in claim 1, is characterized in that, described every layer of umbrella disk (1) installed three covers with the cleaning sheet (2) of brush (4), and be circumferentially uniform along retainer ring (5).
3. a described a kind of 750kV anti-ice-flashing composite insulator string as arbitrary in claim 1-2, is characterized in that, the material of described cleaning sheet (2), fan blade (3), brush (4) and retainer ring (5) is silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704661 CN202977022U (en) | 2012-12-18 | 2012-12-18 | 750kV icing flashover preventing composite insulator chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704661 CN202977022U (en) | 2012-12-18 | 2012-12-18 | 750kV icing flashover preventing composite insulator chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977022U true CN202977022U (en) | 2013-06-05 |
Family
ID=48518066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220704661 Expired - Fee Related CN202977022U (en) | 2012-12-18 | 2012-12-18 | 750kV icing flashover preventing composite insulator chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977022U (en) |
-
2012
- 2012-12-18 CN CN 201220704661 patent/CN202977022U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20191218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |