CN209624704U - A kind of condenser type sleeve of test transformer structure - Google Patents
A kind of condenser type sleeve of test transformer structure Download PDFInfo
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- CN209624704U CN209624704U CN201920250559.8U CN201920250559U CN209624704U CN 209624704 U CN209624704 U CN 209624704U CN 201920250559 U CN201920250559 U CN 201920250559U CN 209624704 U CN209624704 U CN 209624704U
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- insulating layer
- lead
- condenser type
- type sleeve
- test transformer
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Abstract
The utility model discloses a kind of condenser type sleeve of test transformer structures, including guide rod and several lead-out wires, insulating layer is socketed on guide rod, insulated umbrella group is socketed with outside insulating layer, wherein, several layers capacitance plate is disposed in insulating layer from inside to outside, wherein, the corresponding layer capacitance screen of a piece lead-out wire, one end of lead-out wire is connected with corresponding capacitance plate, the other end of lead-out wire is pierced by insulating layer and passes through insulation cluster parachute, the length of each capacitance plate is successively reduced from inside to outside, the structure can pass through shunt capacitance, the various failures occurred inside inductance and resistance simulation bushing shell for transformer.
Description
Technical field
The utility model belongs to transformer detection field, is related to a kind of condenser type sleeve of test transformer structure.
Background technique
Transformer is the important component of electric system, in today of power technology fast development, more and more electricity
Force system occurs paralysis because of Accident of Transformer, this is very unfavorable to the positive development of Power System in China.And at this
In a little Accident of Transformer, defective proportion relevant to casing is also very high.According to the statistics of the China Power academy of sciences, In
1990~1999 years, 6.3%, Zhan total complaint desk time of casing accident Zhan total casual clearing station time of 110kV and the above transformer
11%.And with the continuous improvement of transmission voltage, casing accident proportion also rises constantly.Modern transformer is universal
When using condenser-type terminal, and breaking down for this kind of casing, the research how electric property changes does not have but, this be by
Caused by the condenser type sleeve of test transformer for not simulating various failure situations for people.If condenser type becomes
Depressor casing is oil-filled, then dismantle the casing and inside it production failure be it is impossible, first, if installation do not advise
Model will likely cause the oil leak and dampness failure of oil filled bushing, keep experimental data unreliable；Second, it is one to casing oil charging-discharging
Cumbersome process, it is cumbersome and time consuming.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of condenser type testing transformer
Cannula structure, the structure can pass through the various failures of appearance inside shunt capacitance, inductance and resistance simulation bushing shell for transformer.
In order to achieve the above objectives, if condenser type sleeve of test transformer structure described in the utility model include guide rod and
Dry lead-out wire is socketed with insulating layer on guide rod, insulated umbrella group is socketed with outside insulating layer, wherein in insulating layer from inside to outside according to
It is secondary to be provided with several layers capacitance plate, wherein the corresponding layer capacitance screen of lead-out wire, one end of lead-out wire and corresponding capacitance plate
It is connected, the other end of lead-out wire is pierced by insulating layer and passes through insulation cluster parachute, and the length of each capacitance plate is successively reduced from inside to outside.
On insulation cluster parachute, there are two insulated umbrellas between adjacent two lead-out wires.
Further include grading ring and flange, wherein grading ring is socketed on guide rod, and be fastened on insulation cluster parachute end and
On one end of insulating layer, flange is socketed on the other end of insulating layer.
Capacitance plate is semicoductor capacitor screen.
The number of plies of capacitance plate is five layers, and the cylindrical structure of each layer capacitance screen.
The length difference of adjacent two layers capacitance plate is identical, and the end of each layer capacitance screen forms terraced structure.
Spacing between adjacent two layers capacitance plate is identical.
Flange is cirque structure.
The utility model has the following beneficial effects:
When specific operation, each layer capacitance screen is all connected with condenser type sleeve of test transformer structure described in the utility model
There is a lead-out wire, and each lead-out wire is pierced by insulating layer and passes through insulation cluster parachute, in practical operation, passes through the lead-out wire and electricity
Hold, the parallel connection of capacitor and resistance is avoided dismantling the casing and made failure, experimental data inside it with analog casing failure
It is more reliable, and manpower and time are saved, while avoiding the drawbacks of repeating oil charging-discharging in oil filled bushing test and bad disassembly
Disadvantage, structure is simple, easy to operate, and practicability is stronger.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional view of the utility model；
Fig. 3 is the side view of the utility model.
Wherein, 1 it is guide rod, 2 be grading ring, 3 be capacitance plate, 31 be lead-out wire, 4 be insulation cluster parachute, 5 is insulating layer, 6
For flange.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, Fig. 2 and Fig. 3, condenser type sleeve of test transformer structure described in the utility model includes guide rod 1
And several lead-out wires 31, it is socketed with insulating layer 5 on guide rod 1, insulated umbrella group 4 is socketed with outside insulating layer 5, wherein in insulating layer 5
It is disposed with several layers capacitance plate 3 from inside to outside, wherein the corresponding layer capacitance screen 3 of a lead-out wire 31, the one of lead-out wire 31
End is connected with corresponding capacitance plate 3, and the other end of lead-out wire 31 is pierced by insulating layer 5 and passes through insulation cluster parachute 4, each capacitance plate 3
Length successively reduce from inside to outside.
On insulation cluster parachute 4, there are two insulated umbrellas between adjacent two lead-out wires 31；Flange 6 is circular ring shape knot
Structure.
The utility model further includes grading ring 2 and flange 6, wherein grading ring 2 is socketed on guide rod 1, and is fastened on absolutely
On the end of edge cluster parachute 4 and one end of insulating layer 5, flange 6 is socketed on the other end of insulating layer 5.
Capacitance plate 3 is semicoductor capacitor screen；The number of plies of capacitance plate 3 is five layers, and the cylindrical knot of each layer capacitance screen 3
Structure；The length difference of adjacent two layers capacitance plate 3 is identical, and the end of each layer capacitance screen 3 forms terraced structure；Adjacent two layers capacitance plate
Spacing between 3 is identical.
The capacitance plate 3 is semi-conducting material manufacturing, for dividing to the voltage on the guide rod 1；
The corresponding lead-out wire 31 of the outermost layer capacitance plate 3 is led for connecting ground wire or being connected with test signal output end
It is located on the central axis of described sleeve pipe to bar 1, guide rod 1 connects transformer winding and power bus-bar；
Insulating layer 5 is glass fiber reinforced plastics composite material production；Cluster parachute 4 insulate for silicon rubber composite material production, insulation cluster parachute 4 is used
In avoid air contact and dampness；Flange 6 is epoxide resin material production, and flange 6 is used to described sleeve pipe being fixed on transformer
On.
In order to solve the problem of to pull out in filling type casing experimentation lead-out wire 31 may oil leak, in the utility model
Insulating layer 5 is the glass fiber reinforced plastics composite material of solid-like, and capacitance plate 3 is semicoductor capacitor screen 3, referring specifically to Fig. 2.
In conclusion the capacitance plate 3 due to conventional transformer casing is located in insulating layer 5, it can not easily be carried out
Fault simulation, unless inserting or withdrawing sleeves and destroying 5 structure of its capacitance plate 3 or insulating layer, but casing so just becomes disposable production
Product had not only wasted the time but also had wasted resource, and did so and can not determine quantifier elimination bushing shell for transformer failure.This is practical new
Type then solves the problems, such as this, by every layer capacitance screen 3 connect lead-out wire 31 way, enable various failures easily into
Row simulation.
It is various types that the utility model can occur in experiment indoor simulation actual motion, in various degree and different
The failure of position, for example, capacitor and resistance are certain to that certain variation occurs between screen when dampness failure occurs in casing, this
When, it only need to be in testing transformer corresponding position a certain size resistance and inductance in parallel；For another example, when capacitor between casing screen
When short trouble occurs under short circuit current effect, it can be simulated by the way that corresponding lead-out wire 31 is shorted；And for examination
It, can be by will be to 31 parallel resistance of lead-out wire of analog portion when testing the phenomenon that insulating layer 5 destroys.
Claims (9)
1. a kind of condenser type sleeve of test transformer structure, which is characterized in that including guide rod (1) and several lead-out wires (31),
It is socketed on guide rod (1) insulating layer (5), is socketed with insulated umbrella group (4) outside insulating layer (5), wherein by interior in insulating layer (5)
To being disposed with several layers capacitance plate (3) outside, wherein the corresponding layer capacitance screen (3) of a lead-out wire (31), lead-out wire (31)
One end be connected with corresponding capacitance plate (3), the other end of lead-out wire (31) be pierced by insulating layer (5) and pass through insulation cluster parachute
(4)。
2. condenser type sleeve of test transformer structure according to claim 1, which is characterized in that the length of each capacitance plate (3)
Degree is successively reduced from inside to outside.
3. condenser type sleeve of test transformer structure according to claim 1, which is characterized in that in insulation cluster parachute (4),
There are two insulated umbrellas between adjacent two lead-out wires (31).
4. condenser type sleeve of test transformer structure according to claim 1, which is characterized in that further include grading ring (2)
And flange (6), wherein grading ring (2) is socketed on guide rod (1), and is fastened on end and the insulating layer of insulation cluster parachute (4)
(5) on one end, flange (6) is socketed on the other end of insulating layer (5).
5. condenser type sleeve of test transformer structure according to claim 1, which is characterized in that capacitance plate (3) is partly to lead
Body capacitance screen.
6. condenser type sleeve of test transformer structure according to claim 1, which is characterized in that the number of plies of capacitance plate (3)
It is five layers, and the cylindrical structure of each layer capacitance screen (3).
7. condenser type sleeve of test transformer structure according to claim 1, which is characterized in that adjacent two layers capacitance plate
(3) length difference is identical, and the end of each layer capacitance screen (3) forms terraced structure.
8. condenser type sleeve of test transformer structure according to claim 1, which is characterized in that adjacent two layers capacitance plate
(3) spacing between is identical.
9. condenser type sleeve of test transformer structure according to claim 1, which is characterized in that flange (6) is circular ring shape
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920250559.8U CN209624704U (en) | 2019-02-27 | 2019-02-27 | A kind of condenser type sleeve of test transformer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920250559.8U CN209624704U (en) | 2019-02-27 | 2019-02-27 | A kind of condenser type sleeve of test transformer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209624704U true CN209624704U (en) | 2019-11-12 |
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ID=68455072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920250559.8U Active CN209624704U (en) | 2019-02-27 | 2019-02-27 | A kind of condenser type sleeve of test transformer structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN209624704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175617A (en) * | 2019-12-31 | 2020-05-19 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and system for simulating and determining breakdown fault of high-voltage bushing capacitance layer |
-
2019
- 2019-02-27 CN CN201920250559.8U patent/CN209624704U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175617A (en) * | 2019-12-31 | 2020-05-19 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and system for simulating and determining breakdown fault of high-voltage bushing capacitance layer |
| CN111175617B (en) * | 2019-12-31 | 2022-04-15 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Method and system for simulating and determining breakdown fault of high-voltage bushing capacitance layer |
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