CN204536383U - Manual inflatable high-potting shield assembly - Google Patents
Manual inflatable high-potting shield assembly Download PDFInfo
- Publication number
- CN204536383U CN204536383U CN201520164621.3U CN201520164621U CN204536383U CN 204536383 U CN204536383 U CN 204536383U CN 201520164621 U CN201520164621 U CN 201520164621U CN 204536383 U CN204536383 U CN 204536383U
- Authority
- CN
- China
- Prior art keywords
- shield assembly
- inner bag
- electric conductor
- inflation
- naked
- 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.)
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- 238000004382 potting Methods 0.000 title claims abstract description 18
- 239000004020 conductor Substances 0.000 claims abstract description 32
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 30
- 239000002775 capsule Substances 0.000 claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims description 4
- 239000007901 soft capsule Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 238000009413 insulation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a kind of shield assembly, particularly relate to a kind of Manual inflatable high-potting shield assembly, comprise capsule inner bag (1), naked electric conductor (2), double buckle (3), connector (4), aerating device (5), operation valve (6), inflation union (7), electrical cable (8).The utility model is to eliminate the gap between naked metallic conductor and tested porcelain body surface, expanded by the capsule in device, the porcelain surface contact pressure of naked metallic conductor and tested porcelain object and contact area are increased, gets rid of external disturbance electric current, improve measuring accuracy.This utility model has the features such as easy to carry, shielding surface of contact is large, contact is even, shield effectiveness is good.This device is simple to operate, and can guarantee the safety of testing crew.
Description
technical field:
The utility model relates to a kind of high-potting shield assembly, particularly relates to one and can carry Manual inflatable high-potting shield assembly.
background technology:
The surface that the change of power equipment ambient humidity and air pollution cause is dirty very large on high-potting project (as insulation resistance test, dielectric loss angle test, DC leakage test etc.) impact.The electrical equipment ambient humidity, light and temperature that the place such as coastland, mountain area is installed is large, when relative air humidity is large, the much moisture of insulant adsorption, the surface conductivity of detected equipment is increased, the insulation resistance numerical value obtained in test is low, dielectric loss angle increases, DC leakage-current increases, when insulant surface forms connection moisture film, insulation resistance is lower, dielectric loss angle is larger, DC leakage-current increases fast.The insulation resistance measuring one group of 220kV lightning arrester as mountain area is only 2000M Ω, and after masking its surface current, insulation resistance is more than 10000M Ω, the second fine day, under surface-dry state, measures its insulation resistance also at more than 10000M Ω.The high-potting of sundry item is also like this.
According to above situation, the requirement of electric system test specification, during the high-pottings such as in-site measurement insulation resistance, dielectric loss angle, direct current leakage, shielding line is adopted to eliminate the impact of surface leakage current, oven dry can be adopted in addition, wipe clean equipment surface clearly, to obtain real measured value, because there is no special drying device, general scene does not adopt, and the on-the-spot normal screen method adopted is exactly bare wire screen method.
So-called bare wire screen method, use the soft bare copper wire of the multiply of more than square millimeters exactly, at tested porcelain object, generally mostly be porcelain body surface (as current transformer, voltage transformer (VT), sleeve pipe, the external insulations such as lightning arrester often adopt porcelain to insulate), many porcelain patticoats object is in order to increase creepage distance, different according to equipment electric pressure, the general insulator be made up of ten several to dozens of porcelain patticoats, on-the-spot normal from the termination of tested porcelain object several second or the 3rd porcelain patticoat between be wound around a few circle bare copper wire, will by the porcelain intimate surface contact of bare copper wire and tested porcelain object during winding, surface current could to be masked by testing tool like this.When on-the-spot employing bare copper wire is wound around, because between two porcelain patticoats, gap is little, the hand of people can not be stretched, can only be many around a few circle in outside, however, bare copper wire stock and tested porcelain object porcelain surface wrap due to the pressure that surface of contact is little, strain inadequate, often cause occurring gap between bare copper wire and tested porcelain object porcelain surface, namely can not contact completely, that is, well can not mask surface current.
In addition, in power system transformer substation, in an interval, equipment has a power failure, its ambient separation equipment is not for have a power failure, carrying out in winding process with naked conductor wire, easily cause the naked annealed copper wire of winding throw away after and surrounding charging equipment discharge, cause the generation of human body electrification accident.
utility model content:
for solving above-mentioned deficiency of the prior art, the utility model discloses a kind of inflatable high-potting shield assembly, and this device can eliminate the gap between naked electric conductor and tested porcelain object, reaches the target thoroughly eliminating surface current impact.
The utility model is realized by following technological means:
Manual inflatable high-potting shield assembly, it is characterized in that comprising capsule inner bag, naked electric conductor, double buckle, connector, aerating device, operation valve, inflation union, electrical cable, capsule inner bag closed at both ends, the connector of one of them termination is connected with inflation union, naked electric conductor is made according to the diameter after the inflation of capsule inner bag, make double buckle in naked electric conductor outside as required simultaneously, electrical cable is welded in the termination of the naked electric conductor of the other end of inflation connector, then naked electric conductor is enclosed within rear enclosed two ends on capsule inner bag; Aerating device is connected with capsule inner bag by operation valve, inflation union.
Described capsule inner bag is that soft capsule or high density cloth are made and formed, and also can be naked electrified body and high density cloth bilayer and pastes and be integrated.
According to tested porcelain article diameters size, regulate by the double buckle on naked electric conductor, double buckle is made at shield assembly outside, and this device is applicable to the different tested porcelain object of diameter.
The bare conductor outside surface flat smooth that capsule inner bag outside is overlapped.
Aerating device can use hand-held aerating device, also can be used alone air-inflating tube and inflates.
A soft electrical cable is welded in the termination of shield assembly, and this electrical cable and naked electric conductor weld together, and after inflation before test, is connected on instrument shielding line.
The utility model is to eliminate the gap between naked metallic conductor and tested porcelain body surface, expanded by the capsule in device, the porcelain surface contact pressure of naked metallic conductor and tested porcelain object and contact area are increased, gets rid of external disturbance electric current, improve measuring accuracy.This utility model has the features such as easy to carry, shielding surface of contact is large, contact is even, shield effectiveness is good.This device is simple to operate, and can guarantee the safety of testing crew.
accompanying drawing illustrates:
Fig. 1 is general structure schematic diagram.
Fig. 2 is two kinds of Application comparison schematic diagram.
In figure: 1. capsule inner bag 2. naked electric conductor 3. double buckle 4. connector 5. aerating device 6. operation valve 7. inflates the soft bare copper wire of tested porcelain object 10. multiply of union 8. electrical cable 9.
embodiment:
As Fig. 1, the high-potting of inflatable shown in Fig. 2 shield assembly, comprising: 1. capsule inner bag 2. naked electric conductor 3. double buckle 4. connector 5. aerating device 6. operation valve 7. inflates the soft bare copper wire of tested porcelain object 10. multiply of union 8. electrical cable 9.
Capsule inner bag 1 two is with more closed, and the connector 4 of one of them termination is connected with inflation union 7.
Naked electric conductor 2 is made according to the diameter after capsule inner bag 1 inflation, make double buckle 3 in naked electric conductor 2 outside as required simultaneously, electrical cable 8 is welded in the termination of the naked electric conductor 2 of the other end of inflation connector 4, then naked electric conductor 2 is enclosed within rear enclosed two ends on capsule inner bag 1.
Hand held aerating device 5 is connected with capsule inner bag 1 by operation valve 6, inflation union 7, after shield assembly and tested porcelain object 9 connect, just can inflate to capsule inner bag 1 with aerating device 5, in gas replenishment process, splash contact area (naked electric conductor 2 can reach 1/2nd surface of contact after expanding) and the contact of naked electric conductor 2 and tested porcelain object 9, stop inflating after the contact area of naked electric conductor and tested porcelain object 9 reaches requirement, then, electrical cable 8 is connected can tests with testing tool shielding line.After off-test, remove electrical cable 8, the gas in capsule inner bag 1 is released by the operation valve 6 on rotary inflator 5 limit, opens double buckle 3, takes off inflatable high-potting shield assembly.
Claims (6)
1. Manual inflatable high-potting shield assembly, it is characterized in that comprising capsule inner bag (1), naked electric conductor (2), double buckle (3), connector (4), aerating device (5), operation valve (6), inflation union (7), electrical cable (8), capsule inner bag (1) closed at both ends, the connector (4) of one of them termination is connected with inflation union (7), naked electric conductor (2) is made according to the diameter after capsule inner bag (1) inflation, make double buckle (3) in naked electric conductor (2) outside as required simultaneously, electrical cable (8) is welded in the termination of the naked electric conductor of the other end (2) of inflation connector (4), then naked electric conductor (2) is enclosed within the upper rear enclosed two ends of capsule inner bag (1), aerating device (5) is connected with capsule inner bag (1) by operation valve (6), inflation union (7).
2. Manual inflatable high-potting shield assembly according to claim 1, is characterized in that described capsule inner bag (1) is made for soft capsule or high density cloth and forms, and also can be naked electrified body and high density cloth bilayer is pasted and is integrated.
3. Manual inflatable high-potting shield assembly according to claim 1, it is characterized in that according to tested porcelain article diameters size, regulate by the double buckle (3) on naked electric conductor (2), double buckle (3) is made at shield assembly outside, and this device is applicable to the different tested porcelain object of diameter.
4. Manual inflatable high-potting shield assembly according to claim 1, is characterized in that the bare conductor outside surface flat smooth that capsule inner bag (1) outside is overlapped.
5. Manual inflatable high-potting shield assembly according to claim 1, is characterized in that the available hand-held aerating device of aerating device (5), also can be used alone air-inflating tube and inflate.
6. Manual inflatable high-potting shield assembly according to claim 1, it is characterized in that a soft electrical cable is welded in the termination of shield assembly, this electrical cable and naked electric conductor weld together, and after inflation before test, are connected on instrument shielding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164621.3U CN204536383U (en) | 2015-03-23 | 2015-03-23 | Manual inflatable high-potting shield assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164621.3U CN204536383U (en) | 2015-03-23 | 2015-03-23 | Manual inflatable high-potting shield assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204536383U true CN204536383U (en) | 2015-08-05 |
Family
ID=53750369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520164621.3U Active CN204536383U (en) | 2015-03-23 | 2015-03-23 | Manual inflatable high-potting shield assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204536383U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698233A (en) * | 2015-03-23 | 2015-06-10 | 国网辽宁省电力有限公司丹东供电公司 | Hand-operated inflatable type high-voltage test shielding device and using method thereof |
| CN105891558A (en) * | 2016-06-18 | 2016-08-24 | 国网辽宁省电力有限公司盘锦供电公司 | Insulating rod batch test grounding electrode |
-
2015
- 2015-03-23 CN CN201520164621.3U patent/CN204536383U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698233A (en) * | 2015-03-23 | 2015-06-10 | 国网辽宁省电力有限公司丹东供电公司 | Hand-operated inflatable type high-voltage test shielding device and using method thereof |
| CN105891558A (en) * | 2016-06-18 | 2016-08-24 | 国网辽宁省电力有限公司盘锦供电公司 | Insulating rod batch test grounding electrode |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |