CN2152280Y - 10-30kv indoor electric appliance full working condition insulating structure - Google Patents
10-30kv indoor electric appliance full working condition insulating structure Download PDFInfo
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- CN2152280Y CN2152280Y CN 93213298 CN93213298U CN2152280Y CN 2152280 Y CN2152280 Y CN 2152280Y CN 93213298 CN93213298 CN 93213298 CN 93213298 U CN93213298 U CN 93213298U CN 2152280 Y CN2152280 Y CN 2152280Y
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Abstract
The utility model relates to a 10-30KV indoor electric appliance full working condition insulating structure. The utility model has the same insulator height H of the primary insulating member. A skirt-like disk is made by increasing the diameters pis 0 of the n ring edges in the constant-height surface h (n), of which the diameter is psi and the psi is greater than psi 0. The design scheme with big and small disks alternated adds the homogeneous creepage distance on the surface of insulator and enhances the ability of the resistance of condensation and dirt. The insulating strength is enhanced. The experiment proves that the utility model can pass the pressure test in all regime conditions, such as normal temperature, normal moisture, condensation, dirt, high altitude localities, etc. The utility model provides a reliable scheme for the design to develop novel insulating structure of the high-pressure electrical equipment, can be used to transform and renovate the old electrical equipment conveniently, and has the advantages of easy production, easy processing, easy installation and high mechanical strength.
Description
The utility model belongs to the high-voltage insulation technique field, is specifically related to be applicable to the insulation system of a kind of full operating mode type electric equipment of normal temperature, normal wet, condensation, filth and high altitude localities.
At present, be used for the insulation system of 10～35KV high voltage electric equipment both at home and abroad, all do not have to consider the ability of the normal operation under situations such as humidity, condensation, filth and high altitude localities at design aspect.There is design, unreasonable structure, insulation component along defectives such as the face creep distance are little.Though CN88201095.U " seal of the anti-high humility of 10KV switch cubicle " adopts the bonding one-tenth aerofoil profile of the 3240 type phenolic aldehyde glass-cloth boards limit skirt of electric heating compression moulding, change the phase insulation dividing plate into the integral insulation dividing plate, also just in the 10KV switch cubicle, done local remedial measure, still do not solve along the little problem of face creep distance, still can not satisfy the requirement of safe operation under the full operating mode such as humidity, condensation and filth.Because the insulation system of original 10KV～35KV does not all reach the specified power frequency of aforementioned operating mode standard code, the requirement of impulse withstand voltage, so the insulation flashover accident of switch cubicle repeatedly takes place, cause large tracts of land left alone without help, the safe operation of harm electrical network has a strong impact on normally carrying out of people's lives and industrial and agricultural production.
The purpose of this utility model provides the indoor full operating mode insulation of electrical installation structure of a kind of 10～35KV, to be used for that old, the old electric equipment of present domestic operation of power networks is carried out the technological transformation of reinforced insulation, and, finally improve the reliability of mains supply for the full operating mode electric equipment products of development of new provide reinforced insulation type standard component.
Insulation system of the present utility model is that the insulation system to original electric equipment carries out improved design.Its insulation system is to be arranged to the three phase isolated structure by single-phase insulating component and insulating barrier, comprise three kinds of insulation, promptly 1. the air insulation distance is 125mm～360mm, 2. creepage along face is to be electroceramics 18mm/KV under the 0.03mg/cm situation than distance for equivalent salt density, organic material surface 20mm/KV, 3. the air insulation distance is 30～120mm in the compound inslation, along the face creepage distance is 150～240mm, wherein single-phase insulating component comprises the insulator that is used to support and is used for electric current, the insulating component of voltage transformer, they all are made up of insulator and metal-ware, and insulator comprises insulated column and bonding at one end aerofoil profile limit skirt.The height of the insulator of original single-phase insulating component is H, and the minimum diameter of insulated column is φ ah, at n contour plane h(n) locate to have the ring rib that diameter is φ O, its creep distance is very little, can not be by the withstand voltage test under humidity, condensation and the filthy condition.Improvement of the present utility model is: the diameter of n contour plane h(n of increasing within the height H of insulator) locating to encircle rib, make that to have insulated column and the diameter that average minimum diameter is φ ah be the dish of φ greater than the similar full skirt of φ O, wherein n is 1～12 with interior natural number, φ=50～270mm.During as the support insulating component, formed in the upper and lower metal-ware at insulated column two ends by insulated column and sintering, within H, at h(2n-1) the contour plane place, do the deep bid that diameter is the similar full skirt of φ a, at h(2n) the contour plane place, do the shallow bid that diameter is the similar full skirt of φ b, φ a=120～270mm wherein, φ b=90～124mm.When this kind structure is installed in the 10KV switch cubicle, be subjected to the restriction of phase insulation distance,, made outstanding large diameter dish at current potential place closely.Like this, promptly protecting to levy has increased enough big creep distance, can avoid alternate flashover again.Insulating component as voltage transformer, its insulated column and aerofoil profile limit skirt are to be cast for one with organic insulating material with organic insulation post and aerofoil profile limit skirt, its metal-ware is a metal lead wire, is cast in the centre of insulator, within H, at h(2n-1) the contour plane place, do the deep bid that diameter is the similar full skirt of φ a, at h(2n) the contour plane place, do the shallow bid that diameter is the similar full skirt of φ b, φ a=137～270mm wherein, φ b=124～170mm.Insulating component as current transformer, its insulated column and aerofoil profile limit skirt are cast for one with organic insulating material, its metal-ware is the center that metal lead wire is cast in insulator, and the erietiform layout is arranged, the dish of n similar full skirt, have from top to bottom diameter phi n＞... the arrangement of＞φ 3＞φ 2＞φ 1.
Accompanying drawing one: be the full operating mode insulating component of the indoor electric equipment of 10～35KV structure chart.
Accompanying drawing two: be the single-phase support insulating component of 10KV structure chart.
Accompanying drawing three: be 10KV single-phase potential transformer insulating component structure chart.
Accompanying drawing four: be 35KV monophase current instrument transformer insulating component structure chart.
Further do the embodiment explanation below with reference to accompanying drawing.
Embodiment one:
Accompanying drawing one is the full operating mode insulating component of the indoor electric equipment of a 10～35KV structure chart.When it during as the single-phase support insulating component of 35KV, its insulator (104) is made with ceramic material or organic insulating material, imaginary line is the insulator of prior art, it is made up of by φ ah and insulated column (103) and bonding at one end aerofoil profile limit skirt (102) with ring rib of diameter phi O average minimum diameter, present embodiment is to remove aerofoil profile limit skirt (102), have with insulator equal height H=360mm and insulated column (103) at insulator (104) and to have under the situation that average minimum diameter equals former insulated column minimum diameter φ ah, contour plane h(n at n=11) locating to do 11 diameters is the dish of φ greater than the similar full skirt of φ O, height at insulator (104) is h(2n-1) locate, do the deep bid of φ a=137mm, height at insulator (104) is h(2n) locate, do the shallow bid of φ b=124mm, last metal-ware (101), following metal-ware (105) be respectively sintering at ceramic material or be cast in the upper end and the bottom of organic insulating material insulated column (103).Become the three phase isolated structure with single-phase insulating component one word of above 35KV or triangular form arranged, its phase spacing is d=360mm.
Embodiment two:
Accompanying drawing two is the single-phase support insulating component of 10KV structure charts.Its insulator (202) is made with ceramic material or organic insulating material, the height of insulator (202) is identical with original dielectric height H, H=120mm, the average minimum diameter of its insulated column (203) is also identical with original insulated column minimum diameter φ ah.Contour plane h(n at n=4) locates to do 4 diameters the dish that is the similar full skirt of φ 1～4, height at insulator (202) is h(n-1) n=1 that locates current potential place closely, done the outstanding large diameter deep bid of φ 1=140mm, at the n=3 place, do the deep bid of φ 3=120mm, height at insulator (202) is h(2n) when the n=2 that locates or n=4, do the shallow bid of φ 2=φ 4=90mm, last metal-ware (201), following metal-ware (204) be respectively sintering at porcelain or be cast in the upper end and the bottom of organic insulating material insulated column (203).Become the three phase isolated structure with single-phase insulating component one word of above 10KV or triangular form arranged, its phase spacing is d=125mm.More than outstanding large diameter deep bid φ 1 is arranged in closely current potential side, when being made near hot side because of outstanding large diameter deep bid φ 1, easily forms the discharge of bus to the shirt rim if be.Consider the phase insulation problem simultaneously, the diameter of its outstanding large diameter deep bid φ 1 can be between 120mm～150mm.
Embodiment three:
Accompanying drawing three is 10KV single-phase potential transformer insulating component structure charts.Its insulator (302) is made with organic insulating material, and the height of insulator (302) is identical with original dielectric height H, H=110mm, and the average minimum diameter of its insulated column (303) is also identical with original insulated column minimum diameter φ ah.Contour plane h(n at n=3) locates to do 3 diameters the dish that is the similar full skirt of φ 1～3, height at insulator (302) is h(n) locate, at the n=1 place, do the shallow bid of φ 1=57mm, at the n=2 place, do the mid-game of φ 2=80mm, at the n=3 place, do the deep bid of φ 3=85mm, three dishes are pressed φ 3＞φ 2＞φ 1 sequence arrangement from top to bottom, its metal-ware is that two strip metals lead-in wire is cast in the middle of the insulator (302), leading-out terminal at metal lead wire is equipped with wiring nut (301), the wing limit skirt (304) that insulator (302) is arranged on erietiform and the voltage transformer is made integrated poured, becomes the three phase isolated structure with above 10KV single-phase potential transformer insulating component one word or triangular form arranged, and its phase spacing is d=125mm.
Embodiment four:
Accompanying drawing four is 35KV monophase current instrument transformer insulating component structure charts.Its insulator (404) is made with organic insulating material, and the height of insulator (404) is identical with original dielectric height H, H=200mm, and the average minimum diameter of its insulated column (403) is also identical with original insulated column minimum diameter φ ah.Contour plane h(n at n=6) locating to do 6 diameters the dish that is the similar full skirt of φ 1～6, is h(n at the height of insulator (404)) the n=1 place that locates, make the dish of φ 1=167mm; At the n=2 place, make the dish of φ 2=176mm; At the n=3 place, make the dish of φ 3=267mm; At the n=4 place, be φ 4=190mm; At the n=5 place, make the dish of φ 5=267; At the n=6 place, be φ 6=190mm; Six dishes are spaced from top to bottom substantially by size.Its metal-ware is that two strip metals lead-in wires (402) are cast in the middle of the insulator (404), do the hole (401) of two connection buss at the leading-out terminal of metal lead wire (402), insulator (404) is made integrated poured with the wing limit skirt (405) on the current transformer, become the three phase isolated structure with above 35KV monophase current instrument transformer insulating component one word or triangular form arranged, its phase spacing is d=360mm.
The utility model has the advantages that: under situation with former insulating component identical insulator height H, strengthen n contour plane h(n) locate to encircle the diameter phi O of rib, making diameter is the dish of φ greater than the similar full skirt of φ O, and with the alternate design of big shallow bid increased insulator surface along the face creepage distance and improved anti-freezing dew, the dirty ability of anti-soil, its dielectric strength is improved greatly, evidence, it can pass through the withstand voltage test under the full working conditions such as normal temperature, normal wet, condensation, filth and high altitude localities.Both for the design of the insulation system of development of new high voltage electric equipment provided reliable scheme, also can be advantageously used in renovating of old, old electric equipment.Its manufacturing, processing, simple installation, mechanical strength also increases.
Description of drawings
Fig. 1:
The upper metal-ware of the upper metal-ware 201-of 101-
102-aerofoil profile limit skirt 202-insulator
103-insulated column 203-insulated column
Metal-ware under the 104-insulator 204-
Metal-ware under the 105-
Fig. 3: Fig. 4:
The hole of 301-wiring nut 401-connection bus
302-insulator 402-metal lead wire
303-insulated column 403-insulated column
304-aerofoil profile limit skirt 404-insulator
405-aerofoil profile limit skirt
Claims (5)
1, the full operating mode insulation system of the indoor electric equipment of a kind of 10～35KV, it is to be arranged to the three phase isolated structure by single-phase insulating component and insulating barrier, comprise three kinds of insulation, promptly 1. the air insulation distance is 125mm～360mm, 2. creepage along face is to be electroceramics 18mm/KV under the 0.03mg/cm situation than distance at equivalent salt density, organic material surface 20mm/KV, 3. the air insulation distance is 30～120mm in the compound inslation, along the face creepage distance is 150～240mm, wherein single-phase insulating component is made up of insulator and metal-ware, insulator comprises insulated column and bonding at one end aerofoil profile limit skirt, the height of insulator is H in the single-phase insulating component, the minimum diameter of insulated column is φ ah, locate to have the ring rib that diameter is φ 0 at n contour plane h (n), it is characterized in that: within the height H of insulator, strengthen the diameter that n contour plane h (n) locates to encircle rib, make that to have insulated column and the diameter that average minimum diameter is φ ah be the dish of φ greater than the similar full skirt of φ 0, wherein n is 1～12 with interior natural number, φ=50～270mm.
2, the full operating mode insulation system of the indoor electric equipment of 10～35KV according to claim 1, the height of insulator is H in the wherein single-phase insulating component, the average minimum diameter of insulated column is φ ah, at n contour plane h(n) to locate to have diameter be the dish of φ greater than the similar full skirt of φ O, it is characterized in that: its insulating component is a kind of support insulating component, by insulated column and sintering on the insulated column two ends, following metal-ware is formed, within H, at h(2n-1) the contour plane place, do the deep bid that diameter is the similar full skirt of φ a, at h(2n) the contour plane place, do the shallow bid that diameter is the similar full skirt of φ b, φ a=120～270mm wherein, φ b=90～124mm.
3, the full operating mode insulation system of the indoor electric equipment of 10～35KV according to claim 1, the height of insulator is H in the wherein single-phase insulating component, the average minimum diameter of insulated column is φ ah, at n contour plane h(n) to locate to have diameter be the dish of φ greater than the similar full skirt of φ O, it is characterized in that: its insulated column and aerofoil profile limit skirt are cast for one with organic insulating material, its metal-ware is a metal lead wire, be cast in the centre of insulator, within H, at h(2n-1) the contour plane place, do the deep bid that diameter is the similar full skirt of φ a, at h(2n) the contour plane place, do the shallow bid that diameter is the similar full skirt of φ b, φ a=137～270mm wherein, φ b=124～170mm.
4, the full operating mode insulation system of the indoor electric equipment of 10～35KV according to claim 1, the height of insulator is H in the wherein single-phase insulating component, the average minimum diameter of insulated column is φ ah, at n contour plane h(n) to locate to have diameter be the dish of φ greater than the similar full skirt of φ O, it is characterized in that: its insulated column and aerofoil profile limit skirt are cast for one with organic insulating material, its metal-ware is the center that metal lead wire is cast in insulator, and the erietiform layout is arranged, the dish of n similar full skirt, have from top to bottom diameter phi n＞... the arrangement of＞φ 3＞φ 2＞φ 1.
5, according to claim 1 and the full operating mode insulation system of the indoor electric equipment of 2 described 10～35KV, the height of insulator is H in the wherein single-phase insulating component, the average minimum diameter of insulated column is φ ah, at n contour plane h(n) to locate to have diameter be the dish of φ greater than the similar full skirt of φ O, the h(2n-1 of insulator) there is the deep bid of similar full skirt at the contour plane place, at h(2n) there is the shallow bid of similar full skirt at the contour plane place, it is characterized in that:, made outstanding large diameter dish at current potential place closely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93213298 CN2152280Y (en) | 1993-05-25 | 1993-05-25 | 10-30kv indoor electric appliance full working condition insulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93213298 CN2152280Y (en) | 1993-05-25 | 1993-05-25 | 10-30kv indoor electric appliance full working condition insulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2152280Y true CN2152280Y (en) | 1994-01-05 |
Family
ID=33794412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93213298 Expired - Fee Related CN2152280Y (en) | 1993-05-25 | 1993-05-25 | 10-30kv indoor electric appliance full working condition insulating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2152280Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901650A (en) * | 2010-07-26 | 2010-12-01 | 句容市华阳电器有限公司 | Disk insulator |
-
1993
- 1993-05-25 CN CN 93213298 patent/CN2152280Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901650A (en) * | 2010-07-26 | 2010-12-01 | 句容市华阳电器有限公司 | Disk insulator |
| CN101901650B (en) * | 2010-07-26 | 2012-05-30 | 句容市华阳电器有限公司 | Disk insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |