CN208752167U - A kind of insulation defect shelf depreciation simulator - Google Patents
A kind of insulation defect shelf depreciation simulator Download PDFInfo
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- CN208752167U CN208752167U CN201821366542.0U CN201821366542U CN208752167U CN 208752167 U CN208752167 U CN 208752167U CN 201821366542 U CN201821366542 U CN 201821366542U CN 208752167 U CN208752167 U CN 208752167U
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- support base
- insulation defect
- insulation
- shelf depreciation
- anode electrode
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Abstract
A kind of insulation defect shelf depreciation simulator; it includes the first support base, the second support base and protective cover; first support base, the second support base and protective cover surround cavity body structure; including anode electrode and cathode electrode; the discharge end of anode electrode and cathode electrode is oppositely arranged; insulation defect body is set between anode electrode and cathode electrode, and middle part is equipped with bubble, anode electrode and cathode electrode and connect with the both ends of insulation defect body in insulation defect body.The purpose of the utility model is to provide a continual and steady partial discharge sources, to improve the precision and accuracy of GIS partial discharge live detection.
Description
Technical field
The utility model belongs to high-voltage detecting device field, and in particular to GIS power transmission engineering shelf depreciation live detection neck
Domain.
Background technique
GIS partial discharge live detection technology requires periodically to carry out in transmission & distribution electrical domain at present, and it is important to become repair based on condition of component
Detection means, this, which detects work, has certain technical difficulty, needs to understand that certain EM theory, high voltage are theoretical
With experience abundant.But production scene will not usually generate continual and steady floating electrode local discharge signal, and scene
Also it is not easy to carry out real training practice.
Utility model content
The purpose of the utility model is to provide a continual and steady partial discharge sources, to improve GIS partial discharge live detection
Precision and accuracy.
The purpose of utility model is achieved in that
A kind of insulation defect shelf depreciation simulator, it includes the first support base, the second support base and protective cover, the
One support base, the second support base and protective cover surround cavity body structure, including anode electrode and cathode electrode, anode electrode and yin
The discharge end of pole electrode is oppositely arranged, and insulation defect body, middle part in insulation defect body are arranged between anode electrode and cathode electrode
Equipped with cavity, anode electrode and cathode electrode are connect with the both ends of insulation defect body.
Above-mentioned insulation defect body generally column structure.
Above-mentioned insulation defect body is the cylindrical structure of epoxy material.
It is above-mentioned to be provided with screw rod between the first support base and the second support base and in protective cover periphery, insulation blanket stud from
By holding and being located at the first support base, the second support base outside is equipped with nut.
Above-mentioned first support base, the second support base are stainless steel support base.
Above-mentioned screw rod and nut are respectively insulation blanket stud and insulation nut.
Above-mentioned cavity is air bladder structure.
By adopting the above technical scheme, following technical effect can be brought:
The utility model provides a set of energy and provides the technical solution in continual and steady partial discharge source, can effectively improve the part GIS
The precision and accuracy of electric discharge live detection；
Using insulation defect body is arranged between anode electrode and cathode electrode, in insulation defect body middle part be equipped with diameter 1 to
3mm spherical hollow space, the preferred air bubble-shaped of the structure of cavity, the knot that anode electrode and cathode electrode are connect with the both ends of insulation defect body
Structure；
The diameter 1 of insulating inner is into 3mm spherical bubbles in the cavity, it is easier to generate steady and sustained shelf depreciation；
The extra-high frequency electromagnetic waves with insulating inner defect characteristic can be generated in discharge process in space, are schemed in PRPS
The electric discharge figure of two cluster semicircular arc-shaped of 100Hz frequency diverging distribution is presented in spectrum；
The ultrasonic signal with insulating inner defect characteristic can be generated in discharge process in space.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the overall structure diagram of the utility model
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the circuit diagram of utility model works circuit.
Specific embodiment
A kind of insulation defect shelf depreciation simulator as depicted in figs. 1 and 2, it is supported including the first support base 2, second
Seat 4 and protective cover 3, the first support base 2, the second support base 4 and protective cover 3 surround cavity body structure, including 7 He of anode electrode
The discharge end of cathode electrode 9, the anode electrode 7 and cathode electrode 9 is oppositely arranged, and is set between anode electrode 7 and cathode electrode 9
Insulation defect body 6 is set, middle part is equipped with circle bubble, anode electrode 7 and cathode electrode 9 and insulation defect body 6 in insulation defect body 6
Both ends connection.
The insulation defect body 6 generally column structure.
The insulation defect body 6 is the cylindrical structure of epoxy material.
The connecting pin of the anode electrode 7 is fixedly connected with the first support base 2, the connecting pin of cathode electrode 9 with second
Support seat 4 is fixedly connected, and patch jack 8 is equipped on the first support base 2,4 ontology of the second support base, convenient can be examined in this way with periphery
Slowdown monitoring circuit connection.
As enforceable, as described in Figure 3, a kind of detection circuit, including trigger circuit are provided, trigger circuit includes storage
It can capacitor C3, bidirectional triode thyristor SCR, diode D2, resistance R5, storage capacitor C3And bidirectional triode thyristor SCR is serially connected in transformer
Low tension loop in, diode D2With resistance R5With storage capacitor C3And controllable silicon SCR series connection.C3The energy of trigger pulse is provided
Amount, SCR is bidirectional triode thyristor, when SCR is connected, C3Short circuit dischange, the triggered pulse transformer TR boosting of the pulse signal of generation
To the amplitude of needs.
Including high-tension resistive R2、R3, high-tension resistive R1And high-tension resistive R2It is connect respectively with top electrode and lower electrode.
High-tension resistive R is set1And high-tension resistive R2When equal, it makes switched in static state in switching voltage 1/2.
Including damping resistance R4, damping resistance R4Can prevent the leakage inductance of the stray inductance and transformer on route with every
It is formed and is vibrated from the stray capacitance of capacitor and switch.
Be equipped in transformer TR high pressure end loop is higfh-tension ceramics capacitor C1、C2.Higfh-tension ceramics capacitor C1、C2It can be isolated
Protect pulse transformer TR and low tension loop.
Including energy-storage capacitor C0, it is charged by high-voltage DC power supply.In this way, by high-voltage DC power supply to storage capacitor
Device C0After charging, energy-storage capacitor C0Can bit switch provide energy, the effect as power supply.
The trigger circuit storage capacitor C3, its capacitance is 0.1uF, and the pulse energy of switch triggering circuit is 5mJ
To 10mJ, steepness is 3kV/ns to 5kV/ns.In this way, switch triggering circuit and high pressure gas switch can be stablized, reliable work
Make, in given circuit parameter, high pressure gas switch is without occurring to be connected or being connected unstable state.
Specifically, when in use, the storage capacitor C in trigger circuit3The voltage for being about 320V, C are obtained after rectified3Through
The primary side of silicon-controlled pulse transformer is discharged, and is about 16kV in the pulse voltage amplitude that secondary side generates, and polarity is negative polarity.
C3=0.1uF, pulse energy are about 6mJ, steepness 5.5kV/ns, and switch can fine, reliably working.
It is described to be provided with screw rod 1 between the first support base 2 and the second support base 4 and in 3 periphery of protective cover, in insulation spiral shell
It 1 free end of bar and is located at the first support base 2, is equipped with nut 5 on the outside of the second support base 4, can increase whole device in this way
Rigidity.
First support base 2, the second support base 4 are stainless steel support base.
The screw rod 1 and nut 5 are respectively insulation blanket stud and insulation nut, high-voltage electricity can be prevented to arround device in this way
The interference of things, including the influence to testing staff.
When using the present apparatus, using following steps:
1) the first support base is connected with pressurized line, the second support base is connected to the ground；
2) simulator is put into specific position in GIS pipeline；
3) high voltage is applied to simulator, until device generates stable electric discharge phenomena.
Claims (7)
1. a kind of insulation defect shelf depreciation simulator, it includes the first support base (2), the second support base (4) and protection
Cover (3), the first support base (2), the second support base (4) and protective cover (3) surround cavity body structure, including anode electrode (7) and
Cathode electrode (9), it is characterised in that: the anode electrode (7) and the discharge end of cathode electrode (9) are oppositely arranged, anode electrode
(7) insulation defect body (6) are set between cathode electrode (9), middle part is equipped with cavity, anode electrode (7) in insulation defect body (6)
It is connect with cathode electrode (9) with the both ends of insulation defect body (6).
2. insulation defect shelf depreciation simulator according to claim 1, it is characterised in that: the insulation defect body
(6) generally column structure.
3. insulation defect shelf depreciation simulator according to claim 1 or 2, it is characterised in that: the insulation defect
Body (6) is the cylindrical structure of epoxy material.
4. insulation defect shelf depreciation simulator according to claim 1, it is characterised in that: described in the first support base
(2) it is provided with screw rod (1) between the second support base (4) and in protective cover (3) periphery, in insulation blanket stud (1) free end and divided
Not Wei Yu the first support base (2), be equipped with nut (5) on the outside of the second support base (4).
5. insulation defect shelf depreciation simulator according to claim 1 or 2 or 4, it is characterised in that: described first
Support seat (2), the second support base (4) is stainless steel support base.
6. insulation defect shelf depreciation simulator according to claim 4, it is characterised in that: the screw rod (1) and spiral shell
Cap (5) is respectively insulation blanket stud and insulation nut.
7. insulation defect shelf depreciation simulator according to claim 1, it is characterised in that: the cavity is air bladder
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821366542.0U CN208752167U (en) | 2018-08-23 | 2018-08-23 | A kind of insulation defect shelf depreciation simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821366542.0U CN208752167U (en) | 2018-08-23 | 2018-08-23 | A kind of insulation defect shelf depreciation simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208752167U true CN208752167U (en) | 2019-04-16 |
Family
ID=66081134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821366542.0U Active CN208752167U (en) | 2018-08-23 | 2018-08-23 | A kind of insulation defect shelf depreciation simulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN208752167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542843A (en) * | 2019-09-29 | 2019-12-06 | 广东电网有限责任公司 | Pouring type bubble discharge model and manufacturing method thereof |
-
2018
- 2018-08-23 CN CN201821366542.0U patent/CN208752167U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542843A (en) * | 2019-09-29 | 2019-12-06 | 广东电网有限责任公司 | Pouring type bubble discharge model and manufacturing method thereof |
| CN110542843B (en) * | 2019-09-29 | 2024-01-23 | 广东电网有限责任公司 | Casting type bubble discharge model and manufacturing method thereof |
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