CN107167717A - A kind of local discharge signal blocking device - Google Patents
A kind of local discharge signal blocking device Download PDFInfo
- Publication number
- CN107167717A CN107167717A CN201710593629.5A CN201710593629A CN107167717A CN 107167717 A CN107167717 A CN 107167717A CN 201710593629 A CN201710593629 A CN 201710593629A CN 107167717 A CN107167717 A CN 107167717A
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- China
- Prior art keywords
- insulation crust
- occluder
- high pressure
- pressure leading
- guide 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.)
- Granted
Links
- 230000000903 blocking effect Effects 0.000 title claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 40
- 238000002474 experimental method Methods 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- 239000011324 bead Substances 0.000 claims abstract description 15
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 15
- 239000012212 insulator Substances 0.000 claims description 11
- 238000012360 testing method Methods 0.000 abstract description 22
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
Abstract
The invention discloses a kind of local discharge signal blocking device, including：Disabler and insulating guide rod, wherein, disabler includes insulation crust and multiple occluders for be arrangeding in parallel and being serially connected successively, and insulation crust parcel occluder, occluder includes ferrite bead and the wrapped copper conductor being wrapped on ferrite bead；Insulating guide rod runs through the insulation crust and occluder, and insulating guide rod is vertically arranged with occluder；Input close to the wrapped copper conductor of insulation crust roof is electrically connected with being arranged on the high pressure leading-in terminal of insulation crust, and high pressure leading-in terminal is used to electrically connect with the output end of experiment power supply system；The output end of all wrapped copper conductors is respectively electrically connected with being arranged on a high pressure leading-out terminal of insulation crust, and high pressure leading-out terminal is used to electrically connect with the measure loop that tested high voltage electric equipment and Partial Discharge Detection impedance are constituted.The present apparatus solves experiment power supply system in partial discharge test and produces interference problem of the partial discharge interference signal to testing result.
Description
Technical field
The present invention relates to high voltage electrical test technical field, more particularly to a kind of local discharge signal blocking device.
Background technology
Shelf depreciation refer to occur between the electrodes but non-penetrating electrode electric discharge, it be due to device interior insulation presence
The defect caused in weakness or production process, occurs the phenomenon for repeating to puncture or extinguish under high electric-field intensity effect.With electricity
The continuous improvement of Force system voltage, the shelf depreciation of the high voltage electric equipment under operating voltage such as ultra-high-tension power transmission line is its insulation
Aging, even result in its major reason punctured.In high voltage electrical test, partial discharge test is that examination high voltage electric equipment is exhausted
The important means of edge state, therefore, has been distinctly claimed in numerous standards or code and has carried out shelf depreciation to high voltage electric equipment
Detection.
At present, during partial discharge test, as shown in figure 1, the output end of experiment power supply system 01 for producing ac high voltage is straight
Connect and electrically connected with the measure loop of tested high voltage electric equipment 02 and the composition of Partial Discharge Detection impedance 03.Partial Discharge Detection hinders
The local discharge signal of collection is sent to analysis software by anti-03, so as to get high voltage electric equipment to be measured in analysis software
02 Partial Discharge Detection result.
But, during due to full size field test, experiment power supply system 01 is not usually that this has been resulted in without partial discharge system
In partial discharge test, experiment power supply system 01 is there may be partial discharge interference signal, and these partial discharge interference signals are together with tested height
The local discharge signal of voltage electrical equipment 02 is gathered by Partial Discharge Detection impedance 03 together, and Partial Discharge Detection impedance 03 will be adopted
The local discharge signal that the partial discharge interference signal of collection is produced together with the tested high voltage electric equipment 02 of detection is sent after coupling
To analysis software, so as to cause the Partial Discharge Detection result of tested high voltage electric equipment 02 inaccurate.Therefore, high-voltage electrical apparatus is set
, it is necessary to which a kind of local discharge signal blocking device removes the partial discharge interference that experiment power supply system 01 is produced in standby partial discharge test
Signal.
The content of the invention
The invention provides a kind of local discharge signal blocking device, produced with solving experiment power supply system in the prior art
Partial discharge disturbs high voltage electric equipment partial discharge test, causes the problem of testing result is inaccurate.
The invention provides a kind of local discharge signal blocking device, described device includes：Disabler and insulating guide rod, its
In,
The disabler is included outside insulation crust and multiple occluders for be arrangeding in parallel and being serially connected successively, the insulation
Shell wraps up the occluder, and the occluder includes ferrite bead and is wrapped in being led around copper-clad on the ferrite bead
Line；
The insulating guide rod runs through the insulation crust and occluder, and the insulating guide rod is vertically arranged with occluder；
Input close to the wrapped copper conductor of the insulation crust roof draws with being arranged on the high pressure of the insulation crust
Enter terminal electrical connection, the high pressure leading-in terminal is used to electrically connect with the output end of experiment power supply system；
The output end of all wrapped copper conductors is respectively electrically connected with being arranged on a high pressure leading-out terminal of the insulation crust
Connect, the high pressure leading-out terminal is used to be electrically connected with the measure loop that tested high voltage electric equipment and Partial Discharge Detection impedance are constituted
Connect.
Preferably, the disabler upper and lower ends respectively set a grading ring, two grading rings respectively with insulating guide rod
It is fixedly connected.
Preferably, described device also includes support insulator, and the support insulator is connected with grading ring described in one.
Preferably, what described device also included being used for the base for placing support insulator and be arranged at the base end face can
Mobile wheel.
Preferably, it is filled with insulating oil inside the insulation crust.
The technical scheme that the present invention is provided can include the following benefits：
Local discharge signal blocking device provided in an embodiment of the present invention, by inside disabler insulation crust more according to
The secondary occluder for be arrangeding in parallel and being serially connected, while each occluder includes ferrite bead and is wrapped on ferrite bead
Wrapped copper conductor design, occluder is fabricated to a big inductance coil, utilize inductance lead to low frequency, hinder high frequency principle
Characteristic, prevents the high-frequency interferencing signal that experiment power supply system shelf depreciation is produced by Partial Discharge Detection impedance collection, makes part
The local discharge signal of discharge examination impedance collection is entirely tested high voltage electric equipment, so that the result of analysis element analysis
It is more accurate.The present apparatus can realize the blocking action of shelf depreciation high-frequency signal, solve experiment power supply system in partial discharge test
System produces partial discharge interference signal to the interference problem of testing result, simple in construction, device is simple, meanwhile, occluder quantity connects
Enter there is selectivity, the quantity of access can be selected as needed, one man operation is convenient and safe.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation for local discharge test device that Fig. 1 provides for prior art；
Fig. 2 is a kind of structural representation of disabler provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of occluder provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of local discharge signal blocking device provided in an embodiment of the present invention；
Fig. 5 is a kind of application scenarios schematic diagram of local discharge signal blocking device provided in an embodiment of the present invention.
Embodiment
A kind of local discharge signal blocking device provided in an embodiment of the present invention, as shown in Fig. 2 including：Disabler 1 and absolutely
Edge guide rod 2.
Disabler 1 includes insulation crust 11, and the inside of insulation crust 11 sets obstruction that is multiple parallel successively and being serially connected
Body 12, insulation crust 11 wraps up these occluders 12.
As shown in figure 3, occluder 12 include ferrite bead 121 and be wrapped on the ferrite bead 121 around
Copper-clad wire 122, the wrapped copper conductor 122 of each occluder 12 has input and output end.The inside of insulation crust 11 is all
The wrapped copper conductor of occluder 12 is sequentially connected in series.
In specific implementation process, occluder 12 is set using large aperture, using the wrapped copper conductor of ferrite bead 121
Mode forms high induction reactance inductance, has logical low frequency using inductance coil, hinders the characteristic of high frequency, makes to produce in experiment power supply system 01
The impedance voltage drop that is produced in inductance of high-frequency interferencing signal it is very big, it is impossible to exported, play prevention high-frequency interferencing signal defeated
The effect gone out, so that the high-frequency interferencing signal produced in experiment power supply system 01 can not be output into tested high voltage electric equipment 02
The measure loop constituted with Partial Discharge Detection impedance 03, reaches the purpose that can not be gathered by Partial Discharge Detection impedance 03.
Insulating guide rod 2 is vertically arranged with occluder 12, and through insulation crust 11 and occluder 12.
One high pressure leading-in terminal 3, and some high pressure leading-out terminals 4 are set on insulation crust 11, high pressure leading-out terminal 4
Quantity is identical with the number of occluder 12.
Input close to the wrapped copper conductor of the roof of insulation crust 11 is electrically connected with high pressure leading-in terminal 3, in office
During portion's discharge test, high pressure leading-in terminal 3 is used to electrically connect with the output end of experiment power supply system 01.In specific implementation process
In, experiment power supply system 01 generally comprises power supply and transformer, and the voltage that power supply is produced is converted to high pressure, transformer through transformer
High-voltage output end electrically connected with the high pressure leading-in terminal 3 of disabler 1.
The output end of the wrapped copper conductor 122 of all occluders 12 is respectively electrically connected with a high pressure leading-out terminal 4, and high pressure is drawn
Terminal 4 is used to electrically connect with the measure loop that tested high voltage electric equipment 02 and Partial Discharge Detection impedance 03 are constituted.In part
Discharge test scene, can select connection high pressure leading-out terminal 4, i.e., the occluder 12 that selection is accessed as needed according to experiment needs
Quantity, so as to realize the blocking action under a variety of operating condition of test to the shelf depreciation high-frequency signal of experiment power supply system 01, such as
To blocking action of the shelf depreciation high-frequency signal of experiment power supply system 01 etc. under some different voltage test operating modes.
In order that having good insulation between each occluder 12 in the inside of disabler 1, the inside of insulation crust 11 is filled with exhausted
Edge oil 9.
For balanced disabler high voltage end electric-field intensity, corona interference signal is eliminated, is respectively set in the upper and lower ends of disabler 1
A grading ring 5 is put, as shown in figure 4, two grading rings 5 are fixedly connected with insulating guide rod 2 respectively.In specific implementation process
In, grading ring 5 can be set on insulating guide rod 2, and the external diameter of grading ring 5 is more than the external diameter of disabler 1.
Local discharge signal blocking device in the embodiment of the present invention is additionally provided with support insulator 6, support insulator 6 with
One grading ring 5 is connected.In specific implementation process, support insulator 6 can connect with being arranged on the grading ring 5 of the lower end of disabler 1
Connect.Specifically, support insulator 6 can be fastenedly connected with being arranged on the grading ring 5 of the lower end of disabler 1 by fixing bolt, one
Aspect, support insulator 6 undertakes the insulating effect of the present apparatus, on the other hand, moreover it is possible to which disabler 1 is played a supportive role.
For convenience to the movement of the present apparatus, the present apparatus is also provided with base 7 and is arranged at the removable of the bottom surface of base 7
Driving wheel 8, wherein, base 7 is used to place support insulator 6.
Fig. 5 is the application scenario diagram of local discharge signal blocking device provided in an embodiment of the present invention, is carrying out local put
During electric test, the inspection that the output end of experiment power supply system 01 is constituted with tested high voltage electric equipment 02 and Partial Discharge Detection impedance 03
The local discharge signal blocking device is set between survey time road, in specific implementation process, the output end of experiment power supply system 01 with
The high pressure leading-in terminal electrical connection of the device disabler 1, a high pressure leading-out terminal is put with tested high voltage electric equipment 02 and part
The measure loop electrical connection that electro-detection impedance 03 is constituted, by the present apparatus, the partial discharge interference for preventing experiment power supply system 01 from producing
Signal is gathered by Partial Discharge Detection impedance 03, and it is only tested high-voltage electrical apparatus Partial Discharge Detection impedance 03 is gathered Partial discharge signal
The local discharge signal that equipment 02 is produced, is then sent to analysis software, and the result for detecting analysis software is tested high-tension electricity
The Partial Discharge Detection result of gas equipment 02, is achieved in that testing result is more accurate.
A kind of local discharge signal blocking device provided in an embodiment of the present invention, described device includes：Disabler and insulation
Guide rod, wherein, the disabler includes insulation crust and multiple occluders for be arrangeding in parallel and being serially connected successively, the insulation
Shell wraps up the occluder, and the occluder includes ferrite bead and is wrapped in being led around copper-clad on the ferrite bead
Line；The insulating guide rod runs through the insulation crust and occluder, and the insulating guide rod is vertically arranged with occluder；Close to described
The input of the wrapped copper conductor of insulation crust roof is electrically connected with being arranged on the high pressure leading-in terminal of the insulation crust, described
High pressure leading-in terminal is used to electrically connect with the output end of experiment power supply system；The output end of all wrapped copper conductors is respectively with setting
The high pressure leading-out terminal electrical connection in the insulation crust is put, the high pressure leading-out terminal is used for and tested high voltage electric equipment
The measure loop electrical connection constituted with Partial Discharge Detection impedance.Local discharge signal obstruction dress provided in an embodiment of the present invention
Put, by an occluder for be arrangeding in parallel and being serially connected successively more inside disabler insulation crust, while each occluder
Design including ferrite bead and the wrapped copper conductor being wrapped on ferrite bead, a big electricity is fabricated to by occluder
Feel coil, lead to low frequency using inductance, hinder the principle features of high frequency, the High-frequency Interference for preventing experiment power supply system shelf depreciation from producing
Signal is by Partial Discharge Detection impedance collection, and the local discharge signal for making Partial Discharge Detection impedance collection is entirely tested high pressure
Electrical equipment, so that the result of analysis element analysis is more accurate.The present apparatus can realize that the obstruction of shelf depreciation high-frequency signal is made
With solving in partial discharge test experiment power supply system and produce partial discharge interference signal to the interference problem of testing result, structure
Simply, device is simple, meanwhile, the access of occluder quantity has selectivity, and the quantity of access, single behaviour can be selected as needed
Make, it is convenient and safe.
Those skilled in the art will readily occur to its of the present invention after the disclosure that specification and practice are invented here is considered
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including undocumented common knowledge in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
Invention described above embodiment is not intended to limit the scope of the present invention..
Claims (5)
1. a kind of local discharge signal blocking device, it is characterised in that described device includes：Disabler (1) and insulating guide rod
(2), wherein,
The disabler (1) includes insulation crust (11) and multiple occluders (12) for be arrangeding in parallel and being serially connected successively, institute
State insulation crust (11) and wrap up the occluder (12), the occluder (12) includes ferrite bead (121) and is wrapped in institute
State the wrapped copper conductor (122) on ferrite bead (121)；
The insulating guide rod (2) runs through the insulation crust (11) and occluder (12), the insulating guide rod (2) and occluder
(12) it is vertically arranged；
The input of the wrapped copper conductor (122) of the close insulation crust (11) roof is with being arranged on the insulation crust (11)
High pressure leading-in terminal (3) electrical connection, the high pressure leading-in terminal (3) is used to be electrically connected with the output end of experiment power supply system (01)
Connect；
The output end of all wrapped copper conductors (122) is respectively with being arranged on a high pressure leading-out terminal of the insulation crust (11)
(4) electrically connect, the high pressure leading-out terminal (4) is used for and tested high voltage electric equipment (02) and Partial Discharge Detection impedance (03)
The measure loop electrical connection of composition.
2. device as claimed in claim 1, it is characterised in that disabler (1) upper and lower ends respectively set a grading ring
(5), two grading rings (5) are fixedly connected with insulating guide rod (2) respectively.
3. device as claimed in claim 2, it is characterised in that described device also includes support insulator (6), the pillar is exhausted
Edge (6) is connected with grading ring described in one (5).
4. device as claimed in claim 3, it is characterised in that described device also includes being used to place support insulator (6)
Base (7) and the movable wheel (8) for being arranged at the base (7) bottom surface.
5. device as claimed in claim 1, it is characterised in that insulating oil (9) is filled with inside the insulation crust (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593629.5A CN107167717B (en) | 2017-07-20 | 2017-07-20 | Partial discharge signal blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710593629.5A CN107167717B (en) | 2017-07-20 | 2017-07-20 | Partial discharge signal blocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107167717A true CN107167717A (en) | 2017-09-15 |
| CN107167717B CN107167717B (en) | 2024-02-06 |
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ID=59817094
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710593629.5A Active CN107167717B (en) | 2017-07-20 | 2017-07-20 | Partial discharge signal blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107167717B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946433A (en) * | 2021-01-29 | 2021-06-11 | 云南电网有限责任公司电力科学研究院 | Cubical switchboard partial discharge signal prevents diffusion equipment |
| CN107167717B (en) * | 2017-07-20 | 2024-02-06 | 云南电网有限责任公司电力科学研究院 | Partial discharge signal blocking device |
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| CN107167717B (en) * | 2017-07-20 | 2024-02-06 | 云南电网有限责任公司电力科学研究院 | Partial discharge signal blocking device |
| CN112946433A (en) * | 2021-01-29 | 2021-06-11 | 云南电网有限责任公司电力科学研究院 | Cubical switchboard partial discharge signal prevents diffusion equipment |
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| Publication number | Publication date |
|---|---|
| CN107167717B (en) | 2024-02-06 |
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