CN206892147U - A kind of shielding head of anti-corona interference - Google Patents
A kind of shielding head of anti-corona interference Download PDFInfo
- Publication number
- CN206892147U CN206892147U CN201720569212.0U CN201720569212U CN206892147U CN 206892147 U CN206892147 U CN 206892147U CN 201720569212 U CN201720569212 U CN 201720569212U CN 206892147 U CN206892147 U CN 206892147U
- Authority
- CN
- China
- Prior art keywords
- shielding
- head
- corona
- shielding head
- connecting rod
- 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.)
- Active
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
It the utility model is related to a kind of shielding head of anti-corona interference, including connecting rod and the shielding part that is connected with connecting rod left and right ends, the shielding part of the left or right are provided with a bolted connection.
Description
Technical field
The present invention relates to wave of oscillation partial discharge technical field of measurement and test, more particularly, to a kind of shielding head of anti-corona interference.
Background technology
The wave of oscillation partial discharge measuring technology for being developing progressively ripe in recent years is the more good one kind of domestic and international application effect
For the detection technique of XLPE power cables, it can be detected and the shelf depreciation point in positioning cable.Accurate measurement XLPE electricity
The partial discharge quantity of power cable, it is to judge the most directly perceived of cable insulation quality, most preferable, most efficient method, and will not be to electricity
Cable causes additional injuries, is the effective means that can operate with working line detection.However, operations staff is carrying out the 10kV waves of oscillation
In partial discharge test job, it is found that high-voltage connection alligator forceps has corona discharge and the problem of a large amount of interference signals be present.Therefore
Need to design a simple shielding head for possessing anti-corona interference.
The content of the invention
Corona discharge, interference letter when carrying out wave of oscillation partial discharge test job be present to solve above prior art in the present invention
Number technical barrier, there is provided a kind of shielding head of anti-corona interference.
To realize above goal of the invention, the technical scheme of use is：
A kind of shielding head of anti-corona interference, including connecting rod and the shielding part that is connected with connecting rod left and right ends, it is described
The shielding part of left or right is provided with a bolted connection.
In such scheme, because a large amount of hairs be present in the end at both ends after the cable Xie Kou when carrying out the test of wave of oscillation partial discharge
Thorn and projection, in the case where certain voltage excites, surface corona can be produced by being forced into 8.7kV, and a large amount of interference signals are coupled to
In partial discharge test collection of illustrative plates, the judgement of true partial discharge, or even erroneous judgement have impact on.In order to solve this technical problem, the present invention carries
The shielding head of confession is bolted portion and is connected with end, and shielding head by setting a shielding at the both ends of connecting rod respectively
Portion, by shielding part by increasing the area of Potential distribution, while make Potential distribution uniform, reduce unit field strength, ensure to increase
Not corona during pressure.So as to possess the function of anti-corona interference.
Compared with prior art, the beneficial effects of the invention are as follows：
Shielding head provided by the invention possesses the function of anti-corona interference, can solve the problem that prior art is carrying out wave of oscillation office
Put during test job and corona discharge, the technical barrier of interference signal be present.
Brief description of the drawings
Fig. 1 is the schematic diagram of the shielding head of shortage of money specification.
Fig. 2 is the schematic diagram of the shielding head of surplus specification.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
Below in conjunction with drawings and examples, the present invention is further elaborated.
Embodiment 1
As shown in Figure 1, 2, a kind of shielding head of anti-corona interference, including connecting rod 1 and be connected with the left and right ends of connecting rod 1
Shielding part 2, the shielding part 2 of the left or right is provided with a bolted connection 3.
In specific implementation process, smooth treatment is passed through in the outer surface of the shielding part 2 of the left and right ends.
In such scheme, because a large amount of hairs be present in the end at both ends after the cable Xie Kou when carrying out the test of wave of oscillation partial discharge
Thorn and projection, in the case where certain voltage excites, surface corona can be produced by being forced into 8.7kV, and a large amount of interference signals are coupled to
In partial discharge test collection of illustrative plates, the judgement of true partial discharge, or even erroneous judgement have impact on.In order to solve this technical problem, the present invention carries
The shielding head of confession is bolted portion 3 and is connected with end, and shielding head by setting a screen at the both ends of connecting rod 1 respectively
Portion 2 is covered, by shielding part 2 by increasing the area of Potential distribution, while makes Potential distribution uniform, reduces unit field strength, is ensured
Not corona when adding high pressure.So as to possess the function of anti-corona interference.
In specific implementation process, shielding head has two kinds of specifications, respectively surplus specification and shortage of money specification, shortage of money specification
The size of shielding head be 118.5 mm * 50mm, it is fabricated by duralumin, hard alumin ium alloy outsourcing POM insulating materials.Shortage of money specification
Shielding head is applied to line ear type end.And the size of the shielding head of surplus specification is 351 mm * 50mm, it is by duralumin, hard alumin ium alloy
It is fabricated.The shielding head of surplus specification is applied to T-shaped end.Meanwhile the connecting rod 1 that head is shielded by surplus specification can be with
High-voltage connection crocodile clip clipper joint when being tested with wave of oscillation partial discharge, needs to remove so as to solve prior art when being tested
Crocodile clamp and the technical barrier of cable connection can be realized the quick direct-connected of crocodile clamp and cable after T-shaped end.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (3)
- A kind of 1. shielding head of anti-corona interference, it is characterised in that：The screen being connected including connecting rod and with connecting rod left and right ends Portion is covered, the shielding part of the left or right is provided with a bolted connection；Smooth treatment is passed through in the outer surface of the shielding part of the left and right ends.
- 2. the shielding head of anti-corona interference according to claim 1, it is characterised in that：It is described shielding head size be 118.5 mm * 50mm, it is fabricated by duralumin, hard alumin ium alloy outsourcing POM insulating materials.
- 3. the shielding head of anti-corona interference according to claim 1, it is characterised in that：The size of the shielding head is 351 Mm * 50mm, it is fabricated by duralumin, hard alumin ium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720569212.0U CN206892147U (en) | 2017-05-22 | 2017-05-22 | A kind of shielding head of anti-corona interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720569212.0U CN206892147U (en) | 2017-05-22 | 2017-05-22 | A kind of shielding head of anti-corona interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206892147U true CN206892147U (en) | 2018-01-16 |
Family
ID=61319807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720569212.0U Active CN206892147U (en) | 2017-05-22 | 2017-05-22 | A kind of shielding head of anti-corona interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206892147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983267A (en) * | 2020-08-27 | 2020-11-24 | 广东电网有限责任公司广州供电局 | Experimental appurtenance |
-
2017
- 2017-05-22 CN CN201720569212.0U patent/CN206892147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983267A (en) * | 2020-08-27 | 2020-11-24 | 广东电网有限责任公司广州供电局 | Experimental appurtenance |
| CN111983267B (en) * | 2020-08-27 | 2023-08-29 | 广东电网有限责任公司广州供电局 | Test auxiliary tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102495245B (en) | Insulating bar pressure test platform and method of testing | |
| CN103529366B (en) | UHF broadband current sensor based on Luo-coil principle and combination monitoring system | |
| CN103954894B (en) | Partial discharge locating method for three-phase crossed and interconnected cables | |
| CN102914733A (en) | In-situ detecting method for partial discharge of damped oscillation wave of large-length ultrahigh voltage crosslinked cable | |
| CN105548849A (en) | Local discharge testing circuit and method for high-voltage direct current cable | |
| CN105486987A (en) | Partial discharge detection system | |
| CN106526383A (en) | Lightning arrester state monitoring system and lightning arrester state monitoring method | |
| CN105021951A (en) | Method and device for spatially resolved diagnosis | |
| Paulino et al. | Indirect lightning performance of aerial distribution lines considering the induced-voltage waveform | |
| CN206892147U (en) | A kind of shielding head of anti-corona interference | |
| CN104698265A (en) | High-voltage direct current transmission line corona loss measurement system | |
| CN204679563U (en) | A kind of grounding net of transformer substation corrosion detection system based on surface potential | |
| CN105067889B (en) | The measuring method of the secondary cable transfger impedance that grounded screen dash current causes | |
| CN204679586U (en) | A kind of grounding net of transformer substation corrosion detection system based on earth's surface magnetic induction density | |
| CN103091607A (en) | Electromagnetic characteristic parameter extracting method of high voltage cable insulation defect in different exciting fields | |
| CN107884613A (en) | A kind of line voltage full frequency-domain monitoring device and method based on wideband wide range CT | |
| CN104849568B (en) | Based on the transformer bushing monitoring device detection platform of Signal Regulation | |
| CN106771843A (en) | A kind of fault travelling wave ranging method of single-core power cables | |
| CN203148607U (en) | Post porcelain insulator torsional stress strain test system | |
| CN207380123U (en) | A kind of detection device of human body line-frequency induction electric current | |
| CN207380190U (en) | A kind of iron core reactor turn-to-turn defect tests circuit | |
| CN204203285U (en) | Insulating bar experimental provision | |
| CN207882327U (en) | A kind of network voltage full frequency-domain monitoring device based on wideband wide range CT | |
| CN104360299A (en) | On-site wireless inspection device and method for capacitive type device on-line monitoring system | |
| CN211603420U (en) | Lightning arrester live-line test current shielding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |