CN208902835U - 10kV high-voltage partial discharge model - Google Patents
10kV high-voltage partial discharge model Download PDFInfo
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- CN208902835U CN208902835U CN201821632359.0U CN201821632359U CN208902835U CN 208902835 U CN208902835 U CN 208902835U CN 201821632359 U CN201821632359 U CN 201821632359U CN 208902835 U CN208902835 U CN 208902835U
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- ground electrode
- partial discharge
- insulating cylinder
- electrode
- discharge model
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Abstract
The utility model provides a kind of 10kv high-voltage partial discharge model, which includes the insulating cylinder that sealing is inserted on fuel tank shell, and the insulating cylinder upper surface is higher by conservator liquid level；It is equipped with insulation inserted link in the insulating cylinder, is also fitted with ground electrode bar in the inserted link that insulate, which is electrically connected through lead with fuel tank shell, and ground electrode bar bottom is equipped with ground electrode disk；The insulating cylinder bottom is equipped with pin electrode, and pin electrode upper end needle point is oppositely arranged with ground electrode plate compartment, and pin electrode lower end metal contact is in contact with the metal contact of transformer high-voltage coil winding in fuel tank.The partial discharge model is with good stability, repeated, can simulate the shelf depreciations defects such as needle point electric discharge, bubble electric discharge, suspended discharge source, oil film wedge, the various local discharge signals that analogue transformer insulation defect generates.
Description
Technical field
The utility model relates to a kind of 10kv high-voltage partial discharge models.
Background technique
Shelf depreciation is to cause one of the principal element of transformer insulated failure, determines that shelf depreciation property is to judge it absolutely
The foundation of edge fault severity level.The high-voltage partial discharge model being currently known inside transformer typical parts stability,
Repeatability is bad.Position is inflexible, can not generate a plurality of types of shelf depreciations simultaneously, and electric discharge type cannot
Independent assortment.The generation electric discharge of manual control model is relatively difficult, if the model more to renew in time under long-term work operating condition,
Under the oil-filled state of transformer (or few oil extraction), puts into, cuts out all inconveniences.
Summary of the invention
The utility model provides a kind of 10kv high-voltage partial discharge model.
The specific technical solution of the utility model is as follows:
A kind of 10kV partial discharge model, including sealing the insulating cylinder being inserted on fuel tank shell, the insulating cylinder upper end
Face is higher by conservator liquid level；
It is equipped with insulation inserted link in the insulating cylinder, is also fitted with ground electrode bar in the inserted link that insulate, ground electrode bar top warp
Lead is electrically connected with fuel tank shell, and ground electrode bar bottom is equipped with ground electrode disk；
The insulating cylinder bottom is equipped with pin electrode, and pin electrode upper end needle point is oppositely arranged with ground electrode plate compartment, needle
Electrode lower end metal contact is in contact with the metal contact of transformer high-voltage coil primary side winding in fuel tank.
Preferably, cooperation is sealed between insulation inserted link and the insulating cylinder.
Preferably, it seals and cooperates between the ground electrode bar and insulation inserted link.
Preferably, is threadedly coupled between the insulation inserted link and ground electrode disk using adjusting, for adjustably electrode disk and
The gap of needlepoint electrode.
Preferably, the insulation inserted link lower part is equipped with inner cavity, and the ground electrode disk and pin electrode upper end needle point are arranged at
In the inner cavity.
Preferably, the ground electrode plate is plectane, and after installation, the needle point of pin electrode corresponds to the center of plectane.
Preferably, the pin electrode is mounted on the insulating cylinder bottom by chassis or chassis with holes.
Preferably, the pin electrode is by being provided with adjusting screw between chassis or chassis with holes, for adjusting pin electrode
Position, so as to the gap of adjustably electroplax and needlepoint electrode.
Preferably, the insulating cylinder is connected on fuel tank shell by ring flange.
Preferably, the ground electrode bar, ground electrode disk, pin electrode bar and metal contact are made of copper material；It is described
The needle point of pin electrode is made of tungsten material.
Compared with the prior art, the utility model has the following beneficial effects:
The partial discharge model of the utility model is with good stability, repeated, can simulate needle point electric discharge, bubble
The shelf depreciations defects such as electric discharge, suspended discharge source, oil film wedge, the various local discharge signals that analogue transformer insulation defect generates.
The present apparatus directly contacts high-voltage winding, can generate a plurality of types of shelf depreciations simultaneously, and electric discharge type can
With independent assortment.It can manual control model generation electric discharge phenomena.
The partial discharge model of the utility model is conveniently replaceable, under the oil-filled state of transformer (or few oil extraction), Ke Yifang
Just investment is cut out, and is not required to transformer and is hung cover.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one 10kV partial discharge model of the utility model embodiment (also make an abstract attached drawing)；
Fig. 2 is the partial enlarged view of Fig. 1 partial discharge model；
In figure: 1- cylinder；2- inserted link；3- ground electrode bar；4- ground electrode (circle) plate；5- pin electrode；6- metal contact；7- high
Crimping circle primary side winding；8- lead；9- fuel tank shell；10- conservator；The chassis 11- (chassis)；12- adjusts bolt.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, carries out to the technical scheme in the embodiment of the utility model clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one:
As depicted in figs. 1 and 2, the 10kV partial discharge model of the utility model, comprising: insulating cylinder, insulation inserted link, it is electric
Pole, pin electrode；Ground electrode includes: ground electrode bar and ground electrode plectane；Pin electrode upper end is equipped with needle point, and lower end is touched equipped with metal
Head.Ground electrode bar, ground electrode disk, pin electrode bar and metal contact can be used copper material and be made, and the needle point of pin electrode can be adopted
It is made of tungsten material.
Insulating cylinder sealing is inserted on fuel tank shell, and insulating cylinder upper surface is higher by conservator liquid level；
Inserting insulation inserted link in insulating cylinder, is fitted with ground electrode bar in the inserted link that insulate again, ground electrode bar top through lead with
Fuel tank shell electrical connection, is grounded.Ground electrode bar bottom is equipped with ground electrode disk, for carrying out needle point electric discharge with pin electrode；
It states insulating cylinder bottom and pin electrode is installed, pin electrode upper end needle point is oppositely arranged with ground electrode plate compartment, needle electricity
Pole lower end metal contact is in contact with the metal contact of transformer high-voltage coil primary side winding in fuel tank.
To prevent oil leak, insulating to seal between inserted link and insulating cylinder cooperates, and seals and matches between ground electrode bar and insulation inserted link
It closes.Inserted link lower part insulate equipped with inner cavity, the ground electrode disk and pin electrode upper end needle point are arranged in the inner cavity.Pin electrode is logical
It crosses chassis or chassis with holes is mounted on the insulating cylinder bottom, guarantee that oil can enter in inner cavity.
Embodiment two:
The present embodiment, which further designs, to be, is insulated and is threadedly coupled between inserted link and ground electrode disk using adjusting, for adjusting
The position for the electrode disk that saves land.Pin electrode lower end metal contact can also be connected through a screw thread with pin electrode bar.
Embodiment three:
The present embodiment, which further designs, to be, the ground electrode plate is plectane, and after installation, the needle point of pin electrode corresponds to plectane
Center.
Example IV:
The present embodiment, which further designs, to be, pin electrode is used by being provided with adjusting screw between chassis or chassis with holes
In the position of adjustment pin electrode.
Embodiment five:
The present embodiment, which further designs, to be, insulating cylinder is connected on fuel tank shell by ring flange.On transformer case
Exposed metal contact in the vertical face high-voltage winding in the center of ring flange, ensure that the metal contact of pin electrode connects therewith
Touching.
The utility model outer plus sealed insulation cylinder on transformer top window, insulating cylinder are higher than the liquid level of conservator, thus
Leakage is not present when guaranteeing placement, taking out partial discharge model.
The utility model further designs, and after partial discharge model places, insulate and adds between inserted link and insulating cylinder
Gasket guarantees that transformer oil is not contacted with air.
Can be done between the insulation inserted link and insulating cylinder of partial discharge model it is micro flexible, thus meet transformer winding with
Rigging error between shell；Vibration when vibration, especially tap-changing windings short circuit when absorbing transformer station high-voltage side bus simultaneously.
Claims (10)
1. a kind of 10kV partial discharge model, it is characterised in that: described exhausted including sealing the insulating cylinder being inserted on fuel tank shell
Edge cylinder upper surface is higher by conservator liquid level；
It is equipped with insulation inserted link in the insulating cylinder, is also fitted with ground electrode bar in the inserted link that insulate, the ground electrode bar top is through lead
It is electrically connected with fuel tank shell, ground electrode bar bottom is equipped with ground electrode disk；
The insulating cylinder bottom is equipped with pin electrode, and pin electrode upper end needle point is oppositely arranged with ground electrode plate compartment, pin electrode
Lower end metal contact is in contact with the metal contact of transformer high-voltage coil primary side winding in fuel tank.
2. 10kV partial discharge model according to claim 1, it is characterised in that: close between insulation inserted link and the insulating cylinder
Envelope cooperation.
3. 10kV partial discharge model according to claim 2, it is characterised in that: between the ground electrode bar and insulation inserted link
Sealing cooperation.
4. 10kV partial discharge model according to claim 3, it is characterised in that: between the insulation inserted link and ground electrode disk
It is threadedly coupled using adjusting, the gap for adjustably electrode disk and needlepoint electrode.
5. -4 any 10kV partial discharge model according to claim 1, it is characterised in that: the insulation inserted link lower part is equipped with
Inner cavity, the ground electrode disk and pin electrode upper end needle point are arranged in the inner cavity.
6. 10kV partial discharge model according to claim 5, it is characterised in that: the ground electrode plate is plectane;After installation,
The needle point of pin electrode corresponds to the center of plectane.
7. 10kV partial discharge model according to claim 6, it is characterised in that: the pin electrode is by chassis or with bottom hole
Disk is mounted on the insulating cylinder bottom.
8. 10kV partial discharge model according to claim 7, it is characterised in that: the pin electrode is by chassis or with bottom hole
Adjusting screw is provided between disk.
9. 10kV partial discharge model according to claim 8, it is characterised in that: the insulating cylinder is connected to by ring flange
On fuel tank shell.
10. 10kV partial discharge model according to claim 8, it is characterised in that: the ground electrode bar, ground electrode disk, needle
Electrode stem and metal contact are all made of copper material and are made；The needle point of the pin electrode is made of tungsten material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821632359.0U CN208902835U (en) | 2018-10-09 | 2018-10-09 | 10kV high-voltage partial discharge model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821632359.0U CN208902835U (en) | 2018-10-09 | 2018-10-09 | 10kV high-voltage partial discharge model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208902835U true CN208902835U (en) | 2019-05-24 |
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ID=66575037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821632359.0U Active CN208902835U (en) | 2018-10-09 | 2018-10-09 | 10kV high-voltage partial discharge model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208902835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834883A (en) * | 2021-01-06 | 2021-05-25 | 国网浙江省电力有限公司电力科学研究院 | Built-in transformer partial discharge model |
-
2018
- 2018-10-09 CN CN201821632359.0U patent/CN208902835U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834883A (en) * | 2021-01-06 | 2021-05-25 | 国网浙江省电力有限公司电力科学研究院 | Built-in transformer partial discharge model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210023 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee after: Guoneng Nanjing Electric Power Test Research Co.,Ltd. Address before: 210023 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee before: GUODIAN NANJING ELECTRIC POWER TEST RESEARCH Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |