CN204760146U - Anti -icing suspension type composite insulator of lightning protection for 10kV transmission line - Google Patents

Anti -icing suspension type composite insulator of lightning protection for 10kV transmission line Download PDF

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Publication number
CN204760146U
CN204760146U CN201520462717.8U CN201520462717U CN204760146U CN 204760146 U CN204760146 U CN 204760146U CN 201520462717 U CN201520462717 U CN 201520462717U CN 204760146 U CN204760146 U CN 204760146U
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China
Prior art keywords
gold utensil
icing
lightning protection
umbrella cover
plug
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CN201520462717.8U
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Chinese (zh)
Inventor
陆佳政
赵纯
蒋正龙
方针
张红先
李波
谭艳军
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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
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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 CN201520462717.8U priority Critical patent/CN204760146U/en
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Abstract

The utility model discloses an anti -icing suspension type composite insulator of lightning protection for 10kV transmission line, including the plug, the composite insulator subassembly, the insulated umbrella cover, ball socket gold utensil and bulb gold utensil, the lower electrically conductive cushion that the composite insulator subassembly is just hugged closely on the plug is located to the cover in proper order each other, metal oxide resistor piece group and last electrically conductive cushion, the insulated umbrella cover wraps up in the composite insulator subassembly outsidely, be equipped with the insulating layer between composite insulator subassembly and the insulated umbrella cover, the ball socket gold utensil runs through insulated umbrella cover and last electrically conductive cushion threaded connection, the bulb gold utensil runs through insulated umbrella cover and lower electrically conductive cushion threaded connection, the both ends of plug meet with ball socket gold utensil and bulb gold utensil respectively. The utility model has the advantages of lightning protection and anti -icing effectual, simple installation, long service life, be convenient for reform transform current transmission line.

Description

The anti-icing suspended compound insulator of 10kV lightning protection used for transmission line
Technical field
The utility model relates to electrical engineering technical field, is specifically related to the anti-icing suspended compound insulator of a kind of 10kV lightning protection used for transmission line.
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.
Utility model content
The technical problems to be solved in the utility model 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 anti-icing suspended compound insulator of 10kV lightning protection used for transmission line transformed existing transmission line.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
The anti-icing suspended compound insulator of a kind of 10kV lightning protection used for transmission line, comprise plug, compound inslation sub-component, insulation umbrella cover, ball-and-socket gold utensil and bulb 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 ball-and-socket gold utensil runs through insulation umbrella cover and is threaded with upper conductive cushion block, described bulb gold utensil runs through insulation umbrella cover and is threaded with lower conductive cushion block, the two ends of described plug connect with ball-and-socket gold utensil and bulb gold utensil respectively.
The anti-icing suspended compound insulator of above-mentioned lightning protection, 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.
The anti-icing suspended compound insulator of above-mentioned lightning protection, preferably, described ball-and-socket gold utensil and bulb gold utensil are equipped with crimping jack, and the two ends of described plug are crimped in the crimping jack of ball-and-socket gold utensil and bulb gold utensil respectively.
The anti-icing suspended compound insulator of above-mentioned lightning protection, preferably, described insulating barrier is closely wound around by insulating tape and is wrapped in composite insulator component external and is formed.
The anti-icing suspended compound insulator of above-mentioned lightning protection, preferably, described insulating tape is the glass fiber tape of leaching epoxy glue.
The anti-icing suspended compound insulator of above-mentioned lightning protection, preferably, described metal oxide resistance group comprises multiple being sheathed on successively on plug and the metal oxide resistance be mutually close to.
The anti-icing suspended compound insulator of above-mentioned lightning protection, preferably, described metal oxide resistance is zinc oxide resistance sheet.
The anti-icing suspended compound insulator of above-mentioned lightning protection, preferably, described lower conductive cushion block, metal oxide resistance and upper conductive cushion block are the disc structure that centre has through hole.
The anti-icing suspended compound insulator of above-mentioned lightning protection, 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 utility model has the advantage of: the anti-icing suspended compound insulator of the utility model 10kV lightning protection used for transmission line has good lightning protection and anti-icing performance, when circuit normally runs, the suspention that this suspended compound insulator plays common suspension insulator is held concurrently insulating effect; 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 suspended compound insulator has the mounting means of ball-and-socket gold utensil, bulb gold utensil, directly can replace original common suspension 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 the anti-icing suspended compound insulator of the utility model 10kV lightning protection used for transmission line.
Marginal data:
1, plug; 2, insulate umbrella cover; 21, full skirt; 3, ball-and-socket gold utensil; 4, bulb gold utensil; 5, lower conductive cushion block; 6, metal oxide resistance group; 61, metal oxide resistance; 7, upper conductive cushion block; 8, insulating barrier.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the anti-icing suspended compound insulator of the utility model 10kV lightning protection used for transmission line, comprise plug 1, compound inslation sub-component, insulation umbrella cover 2, ball-and-socket gold utensil 3 and bulb 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, ball-and-socket gold utensil 3 runs through insulation umbrella cover 2 and is threaded with upper conductive cushion block 7, bulb 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 ball-and-socket gold utensil 3 and bulb 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, ball-and-socket gold utensil 3 and bulb gold utensil 4 are equipped with crimping jack, the two ends of plug 1 are crimped in the crimping jack of ball-and-socket gold utensil 3 and bulb gold utensil 4 respectively, because ball-and-socket gold utensil 3 and bulb gold utensil 4 are firmly crimped on the two ends of plug 1, when suspending transmission pressure in midair, enough mechanical load stretch capabilities can be ensured.
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.Ball-and-socket gold utensil 3 adopts the gold utensil of commercially available cap nest structural shape, and bulb gold utensil 4 adopts the gold utensil of commercially available pin ball structural shape; 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 the anti-icing suspended compound insulator of the utility model 10kV lightning protection used for transmission line is applied to transmission line, be arranged on shaft tower and be used for suspending transmission pressure in midair, when circuit normally runs, this suspended compound insulator plays the effect of common suspension insulator, suspention transmission pressure also makes to keep good insulation between wire and ground, bears 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 suspended compound insulator; the nonlinear resistance property of metal oxide resistance 61 works; the effect of clamping down on is played to overvoltage, thus protects whole suspended compound insulator to avoid external insulation flashover, avoid causing line tripping accident.This suspended compound 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 preferred implementation of the present utility model, and protection range of the present utility model 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 utility model technical conceive prerequisite and conversion also should be considered as protection range of the present utility model.

Claims (9)

1. the anti-icing suspended compound insulator of 10kV lightning protection used for transmission line, it is characterized in that: comprise plug (1), compound inslation sub-component, insulation umbrella cover (2), ball-and-socket gold utensil (3) and bulb 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 ball-and-socket gold utensil (3) is run through insulation umbrella cover (2) and is threaded with upper conductive cushion block (7), described bulb 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 ball-and-socket gold utensil (3) and bulb gold utensil (4) respectively.
2. the anti-icing suspended compound insulator of lightning protection 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. the anti-icing suspended compound insulator of lightning protection according to claim 1, it is characterized in that: described ball-and-socket gold utensil (3) and bulb gold utensil (4) are equipped with crimping jack, the two ends of described plug (1) are crimped in the crimping jack of ball-and-socket gold utensil (3) and bulb gold utensil (4) respectively.
4. the anti-icing suspended compound insulator of lightning protection 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. the anti-icing suspended compound insulator of lightning protection according to claim 4, is characterized in that: described insulating tape is the glass fiber tape of leaching epoxy glue.
6. the anti-icing suspended compound insulator of lightning protection 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. the anti-icing suspended compound insulator of lightning protection according to claim 6, is characterized in that: described metal oxide resistance (61) is zinc oxide resistance sheet.
8. the anti-icing suspended compound insulator of lightning protection 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. the anti-icing suspended compound insulator of lightning protection 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.
CN201520462717.8U 2015-07-01 2015-07-01 Anti -icing suspension type composite insulator of lightning protection for 10kV transmission line Active CN204760146U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104952560A (en) * 2015-07-01 2015-09-30 国家电网公司 Anti-thunder and anti-icing suspension type composite insulator for 10 kV transmission line
CN106205901A (en) * 2016-08-25 2016-12-07 江苏智达高压电气有限公司 A kind of new structure extra-high voltage or superhigh voltage DC insulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104952560A (en) * 2015-07-01 2015-09-30 国家电网公司 Anti-thunder and anti-icing suspension type composite insulator for 10 kV transmission line
CN106205901A (en) * 2016-08-25 2016-12-07 江苏智达高压电气有限公司 A kind of new structure extra-high voltage or superhigh voltage DC insulator

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