CN104952561A - Anti-thunder and anti-icing pin type composite insulator for 10 kV transmission line - Google Patents

Anti-thunder and anti-icing pin type composite insulator for 10 kV transmission line Download PDF

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Publication number
CN104952561A
CN104952561A CN201510376334.3A CN201510376334A CN104952561A CN 104952561 A CN104952561 A CN 104952561A CN 201510376334 A CN201510376334 A CN 201510376334A CN 104952561 A CN104952561 A CN 104952561A
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CN
China
Prior art keywords
composite insulator
type composite
lightning
gold utensil
needle type
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.)
Pending
Application number
CN201510376334.3A
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Chinese (zh)
Inventor
陆佳政
赵纯
方针
蒋正龙
李波
张红先
谭艳军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Disaster Prevention and Mitigation Center of State Grid Hunan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Disaster Prevention and Mitigation Center of State Grid Hunan Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Hunan Electric Power Co Ltd, Disaster Prevention and Mitigation Center of State Grid Hunan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510376334.3A priority Critical patent/CN104952561A/en
Publication of CN104952561A publication Critical patent/CN104952561A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an anti-thunder and anti-icing pin type composite insulator for a 10 kV transmission line. The composite insulator comprises a mandrel, a composite insulator assembly, an insulating shed housing, a trunking fitting and a steel leg fitting, wherein the composite insulator assembly comprises a lower conductive heel block, a metal oxide resistor disc group and an upper conductive heel block which are sequentially arranged on the mandrel in a sleeving manner and are tightly attached; the composite insulator assembly is wrapped with the insulating shed housing; an insulating layer is arranged between the composite insulator assembly and the insulating shed housing; the trunking fitting penetrates through the insulating shed housing and is in threaded connection with the upper conductive heel block; the steel leg fitting penetrates through the insulating shed housing and is in threaded connection with the lower conductive heel block; two ends of the mandrel are connected with the trunking fitting and the steel leg fitting respectively. The anti-thunder and anti-icing pin type composite insulator for the 10 kV transmission line has the advantages of good anti-thunder and anti-icing effects, simplicity and convenience in installation, long service life, facilitation of reconstruction of a conventional electric transmission line and the like.

Description

10kV lightning-protection ice used for transmission line needle type composite insulator
Technical field
The present invention relates to electrical engineering technical field, be specifically related to a kind of 10kV lightning-protection ice used for transmission line needle type composite insulator.
Background technology
Mesolow distribution line is that in electrical network, quantity is maximum, cumulative length is the longest, and the circuit the closest with user-association.A lot of distribution line has all been stretched over the mountain area that some are with a varied topography, weather is high and cold, in the area that these geographical environments are special, when meeting with bad weather, circuit is easy to lightning stroke trip and lightning-caused breaking accident occur, or the sub-icing bridge joint of extensive insulation causes leakage current to increase, and has a strong impact on the continuous safe power supply of power distribution network.
For the lightning protection of existing distribution line, there is the method installing arc-initiating device at insulator two ends additional at present to reduce the accident of lightning-caused breaking, but still the tripping operation power-off that after being difficult to eliminate thunderbolt circuit, heterogeneous short circuit causes; Also have the method at the other parallel line lightning arrester of distribution line insulator, but this can increase installing difficulty and construction cost greatly.In addition, there is the simple shortcoming of external insulation beveled structure in existing distribution leakage conductor, and full skirt is wait umbrella footpath or only have large umbellule footpath mostly, and it is anti-icing indifferent, is easy to that icing bridge joint occurs and causes external insulation level to decline.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiency that prior art exists, and provides a kind of lightning protection and anti-icing effective, simple installation, long service life, is convenient to the 10kV lightning-protection ice used for transmission line needle type composite insulator transformed existing transmission line.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of 10kV lightning-protection ice used for transmission line needle type composite insulator, comprise plug, compound inslation sub-component, insulation umbrella cover, wire casing gold utensil and steel pin gold utensil, described compound inslation sub-component comprises and being sheathed on successively on plug and the lower conductive cushion block be mutually close to, metal oxide resistance group and upper conductive cushion block, described insulation umbrella cover is wrapped in composite insulator component external, insulating barrier is provided with between described compound inslation sub-component and insulation umbrella cover, described wire casing gold utensil runs through insulation umbrella cover and is threaded with upper conductive cushion block, described steel pin gold utensil runs through insulation umbrella cover and is threaded with lower conductive cushion block, the two ends of described plug connect with wire casing gold utensil and steel pin gold utensil respectively.
Above-mentioned lightning-protection ice needle type composite insulator, preferably, described insulated umbrella is arranged with three spaced apart full skirts from top to bottom, and the umbrella footpath along three full skirts in direction from top to bottom reduces one by one.
Above-mentioned lightning-protection ice needle type composite insulator, preferably, described wire casing gold utensil and steel pin gold utensil are equipped with crimping jack, and the two ends of described plug are crimped in the crimping jack of wire casing gold utensil and steel pin gold utensil respectively.
Above-mentioned lightning-protection ice needle type composite insulator, preferably, described insulating barrier is closely wound around by insulating tape and is wrapped in composite insulator component external and is formed.
Above-mentioned lightning-protection ice needle type composite insulator, preferably, described insulating tape is the glass fiber tape of leaching epoxy glue.
Above-mentioned lightning-protection ice needle type composite insulator, preferably, described metal oxide resistance group comprises multiple being sheathed on successively on plug and the metal oxide resistance be mutually close to.
Above-mentioned lightning-protection ice needle type composite insulator, preferably, described metal oxide resistance is zinc oxide resistance sheet.
Above-mentioned lightning-protection ice needle type composite insulator, preferably, described lower conductive cushion block, metal oxide resistance and upper conductive cushion block are the disc structure that centre has through hole.
Above-mentioned lightning-protection ice needle type composite insulator, preferably, described plug is epoxy glass fiber leading-drawing rod, and described insulation umbrella cover is high-temperature silicon disulfide rubber product.
Compared with prior art, the invention has the advantages that: 10kV of the present invention lightning-protection used for transmission line ice needle type composite insulator has good lightning protection and anti-icing performance, when circuit normally runs, this needle type composite insulator plays the fixing insulating effect of holding concurrently of support of common pin insulator; When circuit suffers thunderbolt to produce overvoltage, the nonlinear resistance property of metal oxide resistance, plays and clamps down on superpotential effect, prevents the external insulation flashover of insulator, thus avoids transmission line caused by lightning strike; Meanwhile, metal oxide resistance also limit lightning current size, reduces current heating amount, thus avoids lightning-caused breaking.This needle type composite insulator has the mounting means of wire casing gold utensil, steel pin gold utensil, directly can replace original common pin insulator, it metal oxide resistance possessed and the combination of large, medium and small full skirt, lightning protection and the anti-ice-flashing function of 10kV circuit can be realized simultaneously, and simple installation, do not need to change tower structure as existing installing additional parallel line lightning arrester, be convenient to transform existing transmission line, distribution line construction investment can be saved in a large number.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of 10kV of the present invention lightning-protection ice used for transmission line needle type composite insulator.
Marginal data:
1, plug; 2, insulate umbrella cover; 21, full skirt; 3, wire casing gold utensil; 4, steel pin gold utensil; 5, lower conductive cushion block; 6, metal oxide resistance group; 61, metal oxide resistance; 7, upper conductive cushion block; 8, insulating barrier; 9, nut.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1,10kV of the present invention lightning-protection ice used for transmission line needle type composite insulator, comprise plug 1, compound inslation sub-component, insulation umbrella cover 2, wire casing gold utensil 3 and steel pin gold utensil 4, compound inslation sub-component comprises and being sheathed on successively on plug 1 and the lower conductive cushion block 5 be mutually close to, metal oxide resistance group 6 and upper conductive cushion block 7, wherein, metal oxide resistance group 6 comprises multiple being sheathed on successively on plug 1 and the metal oxide resistance 61 be mutually close to.Insulation umbrella cover 2 is wrapped in composite insulator component external, insulating barrier 8 is provided with between compound inslation sub-component and insulation umbrella cover 2, wire casing gold utensil 3 runs through insulation umbrella cover 2 and is threaded with upper conductive cushion block 7, steel pin gold utensil 4 runs through insulation umbrella cover 2 and is threaded with lower conductive cushion block 5, and the two ends of plug 1 connect with wire casing gold utensil 3 and steel pin gold utensil 4 respectively.
In the present embodiment, insulating barrier 8 is closely wound around by insulating tape and is wrapped in composite insulator component external and is formed, and insulating tape is the glass fiber tape of leaching epoxy glue.During making, upper conductive cushion block 7, metal oxide resistance 61, lower conductive cushion block 5 are arranged in order vertically and are set on plug 1 and pre-pressing, is closely wound around with insulating tape afterwards and is rolled into an entirety.
In the present embodiment, wire casing gold utensil 3 and steel pin gold utensil 4 are equipped with crimping jack, the two ends of plug 1 are crimped in the crimping jack of wire casing gold utensil 3 and steel pin gold utensil 4 respectively, because wire casing gold utensil 3 and steel pin gold utensil 4 are firmly crimped on the two ends of plug 1, when supporting fixing transmission pressure, enough mechanical load bearing capacitys can be ensured.Steel pin gold utensil 4 has been threaded nut 9, and for using when insulator is installed, this nut 9 is commercially available STAINLESS STEEL NUTS, and itself and steel pin gold utensil 4 are supporting.
In the present embodiment, lower conductive cushion block 5, metal oxide resistance 61 and upper conductive cushion block 7 are the disc structure that centre has through hole.Wire casing gold utensil 3 adopts the gold utensil of commercially available wire casing structure pattern, and steel pin gold utensil 4 adopts the gold utensil of commercially available steel leg structure pattern; Plug 1 adopts commercially available epoxy glass fiber leading-drawing rod, and insulation umbrella cover 2 be high-temperature silicon disulfide rubber product, and high-temperature silicon disulfide rubber adds compounding ingredient making by methyl vinyl silicone rubber, high temperature vulcanizedly in custom-designed mould forms.Metal oxide resistance 61 can adopt commercially available annular zinc oxide resistance sheet, and lower conductive cushion block 5 and upper conductive cushion block 7 are the annular aluminium matter workpiece of customization.
In the present embodiment, insulation umbrella cover 2 is provided with three spaced apart full skirts 21 from top to bottom, umbrella footpath along three full skirts 21 in direction from top to bottom reduces one by one, when running into sleet and snow ice weather, because the umbrella footpath of three full skirts 21 of the umbrella cover 2 that insulate from top to bottom reduces one by one, the large full skirt 21 of top plays good bridging effect to the middle or small full skirt in below 21, stops full skirt 21 icing bridge joints, can effectively prevent insulator external insulation level from declining.
When 10kV of the present invention lightning-protection ice used for transmission line needle type composite insulator is applied to transmission line, be arranged on shaft tower and be used for supporting fixing transmission pressure, when circuit normally runs, this needle type composite insulator plays the effect of common pin insulator, support fixing transmission pressure and make between wire and ground, to keep good insulation, bearing normal line operating voltages; In Thunderstorm Weather; meet thunderbolt and attack shaft tower or wire directly; or ground near thunderbolt circuit; when caused direct attack overvoltage or induction overvoltage are applied on this needle type composite insulator; the nonlinear resistance property of metal oxide resistance 61 works; the effect of clamping down on is played to overvoltage, thus protects whole needle type composite insulator to avoid external insulation flashover, avoid causing line tripping accident.This needle type composite insulator, through manufacturing experimently the on probation lightning protection and anti-icing respond well of being proved to be, can meet the designing requirement that the lightning protection of 10kV transmission line is anti-icing completely.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment.For those skilled in the art, do not departing from the improvement that obtains under the technology of the present invention concept thereof and conversion also should be considered as protection scope of the present invention.

Claims (9)

1. a 10kV lightning-protection ice used for transmission line needle type composite insulator, it is characterized in that: comprise plug (1), compound inslation sub-component, insulation umbrella cover (2), wire casing gold utensil (3) and steel pin gold utensil (4), described compound inslation sub-component comprises and is sheathed on the upper and lower conductive cushion block (5) be mutually close to of plug (1) successively, metal oxide resistance group (6) and upper conductive cushion block (7), described insulation umbrella cover (2) is wrapped in composite insulator component external, insulating barrier (8) is provided with between described compound inslation sub-component and insulation umbrella cover (2), described wire casing gold utensil (3) is run through insulation umbrella cover (2) and is threaded with upper conductive cushion block (7), described steel pin gold utensil (4) is run through insulation umbrella cover (2) and is threaded with lower conductive cushion block (5), the two ends of described plug (1) connect with wire casing gold utensil (3) and steel pin gold utensil (4) respectively.
2. lightning-protection ice needle type composite insulator according to claim 1, is characterized in that: described insulation umbrella cover (2) is provided with three spaced apart full skirts (21) from top to bottom, and the umbrella footpath along three full skirts (21) in direction from top to bottom reduces one by one.
3. lightning-protection ice needle type composite insulator according to claim 1, it is characterized in that: described wire casing gold utensil (3) and steel pin gold utensil (4) are equipped with crimping jack, the two ends of described plug (1) are crimped in the crimping jack of wire casing gold utensil (3) and steel pin gold utensil (4) respectively.
4. lightning-protection ice needle type composite insulator according to claim 1, is characterized in that: described insulating barrier (8) is closely wound around by insulating tape and is wrapped in composite insulator component external and is formed.
5. lightning-protection ice needle type composite insulator according to claim 4, is characterized in that: described insulating tape is the glass fiber tape of leaching epoxy glue.
6. lightning-protection ice needle type composite insulator according to claim 1, is characterized in that: described metal oxide resistance group (6) comprises multiple plug (1) that is sheathed on successively and goes up and the metal oxide resistance (61) be mutually close to.
7. lightning-protection ice needle type composite insulator according to claim 6, is characterized in that: described metal oxide resistance (61) is zinc oxide resistance sheet.
8. lightning-protection ice needle type composite insulator according to claim 6, is characterized in that: described lower conductive cushion block (5), metal oxide resistance (61) and upper conductive cushion block (7) are the disc structure that centre has through hole.
9. lightning-protection ice needle type composite insulator according to any one of claim 1 to 8, is characterized in that: described plug (1) is epoxy glass fiber leading-drawing rod, and described insulation umbrella cover (2) is high-temperature silicon disulfide rubber product.
CN201510376334.3A 2015-07-01 2015-07-01 Anti-thunder and anti-icing pin type composite insulator for 10 kV transmission line Pending CN104952561A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105334593A (en) * 2015-12-11 2016-02-17 国网四川省电力公司成都供电公司 Electric cable galvanic corrosion prevention pendant
CN105609221A (en) * 2016-03-30 2016-05-25 国网山东省电力公司青岛供电公司 Lightning-protection and explosion-proof insulator
CN105788775A (en) * 2016-05-27 2016-07-20 国网湖南省电力公司 Needle type composite insulator for 10 kV transmission line
CN112216453A (en) * 2020-09-30 2021-01-12 南阳金牛电气有限公司 10kv distribution line prevents anti-icing arrester of multiple thunderbolt

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1280372A (en) * 1999-07-09 2001-01-17 株式会社东芝 Lighting arrester and its producing method
CN2478212Y (en) * 2001-03-30 2002-02-20 戴娴 Suspension lightning insulator of high voltage line
CN2788313Y (en) * 2005-03-17 2006-06-14 武汉高压研究所 Composite insulating housing of novel umbrella skirt structure
CN202217551U (en) * 2011-04-26 2012-05-09 安徽省电力公司淮北供电公司 Low-voltage composite insulator
CN202930140U (en) * 2012-12-14 2013-05-08 固力发集团有限公司 Windage yaw resistant composite insulator
CN204732236U (en) * 2015-07-01 2015-10-28 国家电网公司 10kV lightning-protection ice used for transmission line needle type composite insulator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1280372A (en) * 1999-07-09 2001-01-17 株式会社东芝 Lighting arrester and its producing method
CN2478212Y (en) * 2001-03-30 2002-02-20 戴娴 Suspension lightning insulator of high voltage line
CN2788313Y (en) * 2005-03-17 2006-06-14 武汉高压研究所 Composite insulating housing of novel umbrella skirt structure
CN202217551U (en) * 2011-04-26 2012-05-09 安徽省电力公司淮北供电公司 Low-voltage composite insulator
CN202930140U (en) * 2012-12-14 2013-05-08 固力发集团有限公司 Windage yaw resistant composite insulator
CN204732236U (en) * 2015-07-01 2015-10-28 国家电网公司 10kV lightning-protection ice used for transmission line needle type composite insulator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105334593A (en) * 2015-12-11 2016-02-17 国网四川省电力公司成都供电公司 Electric cable galvanic corrosion prevention pendant
CN105334593B (en) * 2015-12-11 2019-04-16 国网四川省电力公司成都供电公司 A kind of electric power optical cable electric corrosion prevention pendant
CN105609221A (en) * 2016-03-30 2016-05-25 国网山东省电力公司青岛供电公司 Lightning-protection and explosion-proof insulator
CN105609221B (en) * 2016-03-30 2017-12-15 国网山东省电力公司青岛供电公司 A kind of lightning protection explosion-proof insulator
CN105788775A (en) * 2016-05-27 2016-07-20 国网湖南省电力公司 Needle type composite insulator for 10 kV transmission line
CN112216453A (en) * 2020-09-30 2021-01-12 南阳金牛电气有限公司 10kv distribution line prevents anti-icing arrester of multiple thunderbolt

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Application publication date: 20150930