CN202142355U - Lightening proof insulation pillar for outdoor AC high-voltage drop type fuse - Google Patents
Lightening proof insulation pillar for outdoor AC high-voltage drop type fuse Download PDFInfo
- Publication number
- CN202142355U CN202142355U CN 201120109206 CN201120109206U CN202142355U CN 202142355 U CN202142355 U CN 202142355U CN 201120109206 CN201120109206 CN 201120109206 CN 201120109206 U CN201120109206 U CN 201120109206U CN 202142355 U CN202142355 U CN 202142355U
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- CN
- China
- Prior art keywords
- outdoor
- zinc oxide
- proof insulation
- voltage drop
- insulation pillar
- 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
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a lightening proof insulation pillar for an outdoor AC high-voltage drop type fuse. The key of the technology is that the lightening proof insulation pillar comprises an epoxy pipe, electrodes, a zinc oxide resistance card and a silicone rubber insulating layer, wherein the electrodes are disposed on the inner two ends of the epoxy pipe, the zinc oxide resistance card is arranged between the two electrodes, and the silicone rubber insulating layer is wrapped outside the epoxy pipe and molded through one-time sulfuration. According to the lightening proof insulation pillar of the utility model, lightning stroke is effectively prevented, no zinc oxide lightning arrester needs to be individually arranged, and the mounting space is saved.
Description
Technical field
The utility model relates to the fuse on a kind of 10KV of being used for distribution line branch line and the distribution transformer, especially a kind of anti-thunderbolt insulation column that is used on the outdoor ac high voltage drop fuse.
Background technology
Fuse is 10KV distribution line and the most frequently used protective switch of the short circuit of distribution transformer; It has economy, easy to operate, adapt to advantages such as outdoor environment property is strong, be widely used in 10KV and join single line and distribution transformer primary side as protection with carry out that equipment is thrown, usefulness when cutting behaviour.It is installed on the 10KV distribution line branch line,, can dwindle the power failure scope, because of it has a tangible cut-off point, possessed the function of isolating switch, created a safety work environment for maintenance end line and equipment, increased maintainer's the sense of security.It is installed on the distribution transformer, can be used as the main protection of distribution transformer, so, obtained popularizing at 10kV distribution line and distribution transformer.Fuse at present commonly used can be divided into two kinds of indoor type and outdoor types.In the outdoor type fuse, commonly used has following two kinds: RW10 type product and RW11 type product.But above-mentioned these two kinds of fuses commonly used all need in addition zinc oxide arrester to be installed in order to prevent thunderbolt, can strengthen installing space like this, also can strengthen cost.Therefore it is low and can practice thrift the new product of installing space to press for a kind of cost.
The utility model content
The technical problem that the utility model will solve provides the anti-thunderbolt insulation column on the outdoor ac high voltage drop fuse that is used for that a kind of cost is low, can effectively save installing space.
For solving the problems of the technologies described above; The technical scheme that the utility model is taked is: a kind of anti-thunderbolt insulation column that is used on the outdoor ac high voltage drop fuse, its key technology is: comprise epoxy tube, be positioned through being threaded the inner two ends of epoxy tube electrode, be installed on the zinc oxide resistance sheet between two electrodes and be wrapped in the outside silicone rubber insulation layer of said epoxy tube through the one-step mould sulfidization molding.
Adopt the beneficial effect that technique scheme produced to be: insulated part in the epoxy tube that the utility model is provided with, zinc oxide resistance sheet and electrode constitute, the silicone rubber insulation layer that the outside coats constitutes the external insulation part, and external insulation partly adopts high quality silicon rubber; Anti-pollution characteristic is excellent, need not clean maintenance, and peculiar hydrophobicity of silicon rubber and migration of hydrophobicity make the insulator after the long-pending dirt still have excellent hydrophobicity and high pollution flashover voltage; Interior oxidation zinc resistor disc is in series, and is sealed in the epoxy tube, does not have any discharging gap; Under normal continuous operating voltage state, the utility model is failure to actuate, and is high-impedance state; When the amplitude of electric overvoltage or switching overvoltage surpasses certain limit; The utility model conducting, because the non-linear voltage-current characteristic of zinc oxide resistance sheet rainfall, the residual voltage at its two ends is being protected below the apparatus insulated safety value by the value of facing upward after the conducting; Thereby electric equipment is protected, has possessed anti-thunderbolt function; The utility model one-step mould sulfidization molding, intensity is high, in light weight and the curved ability of tension is strong.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Wherein, 1, set bolt; 2, electrode; 3, silicone rubber insulation layer; 4, epoxy tube; 5, zinc oxide resistance sheet.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Referring to accompanying drawing, the utility model comprises epoxy tube 4, connects the electrode 2 that is positioned epoxy tube 4 inner two ends, the silicone rubber insulation layer 3 through the one-step mould sulfidization molding that is installed on the zinc oxide resistance sheet 5 between two electrodes 2 and is wrapped in said epoxy tube 4 outsides through set bolt 1.Zinc oxide resistance sheet 5 is in series, and its electrode 2 by two ends compresses, and is closed in the inside of epoxy tube 4.No longer the zinc oxide lightning rod need be set separately, reduce installing space, avoid the wasting of resources, be convenient to on-the-spot the installation.
Claims (1)
1. anti-thunderbolt insulation column that is used on the outdoor ac high voltage drop fuse is characterized in that: comprise epoxy tube (4), be positioned through being threaded the inner two ends of epoxy tube (4) electrode (2), be installed on the zinc oxide resistance sheet (5) between two electrodes (2) and be wrapped in the outside silicone rubber insulation layer through the one-step mould sulfidization molding (3) of said epoxy tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120109206 CN202142355U (en) | 2011-04-14 | 2011-04-14 | Lightening proof insulation pillar for outdoor AC high-voltage drop type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120109206 CN202142355U (en) | 2011-04-14 | 2011-04-14 | Lightening proof insulation pillar for outdoor AC high-voltage drop type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142355U true CN202142355U (en) | 2012-02-08 |
Family
ID=45553405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120109206 Expired - Fee Related CN202142355U (en) | 2011-04-14 | 2011-04-14 | Lightening proof insulation pillar for outdoor AC high-voltage drop type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142355U (en) |
Cited By (1)
| 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 |
-
2011
- 2011-04-14 CN CN 201120109206 patent/CN202142355U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20180414 |