CN208721721U - A kind of floating electrode shelf depreciation simulator - Google Patents
A kind of floating electrode shelf depreciation simulator Download PDFInfo
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- CN208721721U CN208721721U CN201821364891.9U CN201821364891U CN208721721U CN 208721721 U CN208721721 U CN 208721721U CN 201821364891 U CN201821364891 U CN 201821364891U CN 208721721 U CN208721721 U CN 208721721U
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- support base
- electrode
- shelf depreciation
- cathode electrode
- anode electrode
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Abstract
A kind of floating electrode shelf depreciation simulator; it includes the first support base, the second support base and protective cover; top cover, pedestal 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; discharging gap is formed between anode electrode and cathode electrode, and the discharge end of anode electrode and cathode electrode is provided with grading shield.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.At the same time, there is also many problems to need to solve for Partial Discharge Detecting Technology, passes through offer
One continual and steady partial discharge source, can carry out relation technological researching, improve the precision of detection and the accuracy of judgement.
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 floating electrode shelf depreciation simulator, it includes the first support base, the second support base and protective cover, top
Lid, pedestal and protective cover surround cavity body structure, including anode electrode and cathode electrode, the electric discharge of anode electrode and cathode electrode
End is oppositely arranged, and discharging gap is formed between anode electrode and cathode electrode, in anode electrode and the discharge end of cathode electrode
It is provided with grading shield.
The discharge end of above-mentioned grading shield is arc convex structure.
The discharge end of above-mentioned grading shield is hemispherical protuberances structure.
The connecting pin of above-mentioned anode electrode is fixedly connected with the first support base, the connecting pin of cathode electrode and the second support base
It is fixedly connected, patch jack is equipped on the first support base, the second support base ontology.
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.
By adopting the above technical scheme, following technical effect can be brought:
1) the utility model provides a set of energy and provides the technical solution in continual and steady partial discharge source, can effectively improve GIS innings
The precision and accuracy of portion's electric discharge live detection；
2) it is provided with the structure of grading shield using the discharge end in anode electrode and cathode electrode, electrode can be significantly improved
Stability when electric discharge；
3) use the discharge end of grading shield for the structure of arc convex structure, in this way on the basis of stable discharging, in arc
Collect more electronics on shape bulge-structure, is detected electric discharge phenomena preferably；
4) use the discharge end of grading shield for the structure of hemispherical protuberances structure, hemispherical discharge end parts can converge well
Set electron makes the progress that electric discharge phenomena are continuous and stable, and hemispherical bulge-structure can more convenient discharge end parts production
The plating on surface when manufacture processing.
5) in the cavity between dome electrode, steady and sustained shelf depreciation can be generated；
6) the extra-high frequency electromagnetic waves with floating electrode discharge characteristic can be generated in discharge process in space, in PRPS
It is symmetrical that 100Hz frequency is presented in map, amplitude columnar dicsharge figure.PRPS map is overlooked, eight are presented on a timeline
Word distribution；
7) ultrasonic signal with floating electrode discharge characteristic can be generated in discharge process in space；
8) electric arc and product that electric discharge generates can limit in the cavity, prevent pollution environment.
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 floating electrode 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, top cover 2, pedestal 4 and protective cover 3 surround cavity body structure, including anode electrode 7 and cathode electrode 9, sun
Pole electrode 7 and the discharge end of cathode electrode 9 are oppositely arranged, and discharging gap are formed between anode electrode 7 and cathode electrode 9, in sun
The discharge end of pole electrode 7 and cathode electrode 9 is provided with grading shield 6.
The discharge end of the grading shield 6 is arc convex structure.
The discharge end of the grading shield 6 is hemispherical protuberances structure.
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.
Claims (7)
1. a kind of floating electrode 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) discharging gap is formed between cathode electrode (9), is provided in the discharge end of anode electrode (7) and cathode electrode (9)
Pressure cover (6).
2. floating electrode shelf depreciation simulator according to claim 1, it is characterised in that: the grading shield (6)
Discharge end is arc convex structure.
3. floating electrode shelf depreciation simulator according to claim 2, it is characterised in that: the grading shield (6)
Discharge end is hemispherical protuberances structure.
4. floating electrode shelf depreciation simulator according to claim 1, it is characterised in that: the anode electrode (7)
Connecting pin be fixedly connected with the first support base (2), the connecting pin of cathode electrode (9) is fixedly connected with the second support base (4),
First support base (2), the second support base (4) ontology are equipped with patch jack (8).
5. according to claim 1 to 4 one of them described floating electrode shelf depreciation simulator, it is characterised in that: described
It is provided with screw rod (1) between the first support base (2) and the second support base (4) and in protective cover (3) periphery, in insulation blanket stud
(1) it free end and is located at the first support base (2), is equipped with nut (5) on the outside of the second support base (4).
6. according to claim 1 to 4 one of them described floating electrode shelf depreciation simulator, it is characterised in that: described
First support base (2), the second support base (4) are stainless steel support base.
7. floating electrode shelf depreciation simulator according to claim 5, it is characterised in that: the screw rod (1) and spiral shell
Cap (5) is respectively insulation blanket stud and insulation nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821364891.9U CN208721721U (en) | 2018-08-23 | 2018-08-23 | A kind of floating electrode shelf depreciation simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821364891.9U CN208721721U (en) | 2018-08-23 | 2018-08-23 | A kind of floating electrode shelf depreciation simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208721721U true CN208721721U (en) | 2019-04-09 |
Family
ID=65979118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821364891.9U Active CN208721721U (en) | 2018-08-23 | 2018-08-23 | A kind of floating electrode shelf depreciation simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208721721U (en) |
-
2018
- 2018-08-23 CN CN201821364891.9U patent/CN208721721U/en active Active
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