CN220084990U - GIS particle discharge system capable of replacing particles - Google Patents
GIS particle discharge system capable of replacing particles Download PDFInfo
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- CN220084990U CN220084990U CN202321033909.8U CN202321033909U CN220084990U CN 220084990 U CN220084990 U CN 220084990U CN 202321033909 U CN202321033909 U CN 202321033909U CN 220084990 U CN220084990 U CN 220084990U
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- 239000002245 particle Substances 0.000 title claims abstract description 96
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 36
- 239000004020 conductor Substances 0.000 claims description 34
- 239000000523 sample Substances 0.000 claims description 15
- 230000005684 electric field Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a GIS particle discharge system capable of replacing particles, which comprises a pressurizing device, a test cavity, a particle discharge device, a lifting device and a discharge data acquisition device, wherein the pressurizing device is arranged in the test cavity; the pressurizing device, the lifting device and the discharge data acquisition device are all arranged on the test cavity, the output end of the pressurizing device is arranged in the test cavity, and the particle discharge device is arranged on the execution end of the lifting device; when the descending stroke of the executing end of the lifting device is maximum, the particle discharging device is connected with the output end of the pressurizing device; when the descending stroke of the executing end of the lifting device is minimum, the particle discharging device is positioned outside the test cavity; the discharge data acquisition device is electrically connected with the particle discharge device and the pressurizing device. The utility model provides a GIS particle discharge system capable of replacing particles, wherein the types and the sizes of GIS particles can be replaced according to experimental requirements so as to simulate discharge conditions under different working conditions.
Description
Technical Field
The utility model relates to the technical field of power equipment measurement, in particular to a GIS particle discharge system capable of replacing particles.
Background
The particle discharge is a partial discharge phenomenon generated in the interior of particles or on the surfaces of the particles, and has an important influence on the safe operation and stability of GIS (Gas lnsulated Switchgear, gas insulated switch) equipment. The particle discharge model in the prior art often adopts irreplaceable fixed particles, so that the types and the sizes of the particles are difficult to replace in the experimental process, and the deep research of the particle discharge mechanism and the accuracy of experimental results are limited.
Disclosure of Invention
The utility model aims to provide a GIS particle discharge system capable of replacing particles, which solves the problems that the particle discharge model in the prior art often adopts irreplaceable fixed particles, the types and the sizes of the particles are difficult to replace in the experimental process, and the deep research of the particle discharge mechanism and the accuracy of experimental results are limited.
The utility model is realized by the following technical scheme:
the GIS particle discharge system capable of replacing particles comprises a pressurizing device, a test cavity, a particle discharge device, a lifting device and a discharge data acquisition device;
the pressurizing device, the lifting device and the discharge data acquisition device are arranged on the test cavity, the output end of the pressurizing device is arranged in the test cavity, and the particle discharge device is arranged on the execution end of the lifting device; when the descending stroke of the executing end of the lifting device is maximum, the particle discharging device is connected with the output end of the pressurizing device; when the descending stroke of the executing end of the lifting device is minimum, the particle discharging device is positioned outside the test cavity; the discharge data acquisition device is electrically connected with the particle discharge device and the pressurizing device.
Further, the test cavity is a cylindrical metal tank, the axis of the cylindrical metal tank is parallel to the horizontal plane, the pressurizing device is arranged on the end face of the cylindrical metal tank, and the lifting device is arranged on the side face of the cylindrical metal tank.
Further, the device also comprises at least one observation window, wherein the observation window is arranged on the side surface of the cylindrical metal tank body.
Further, the metal can further comprises a square wave injection hole, wherein the square wave injection hole is arranged on the side face of the cylindrical metal can body.
Further, the pressurizing device is arranged as a transformer, the input end of the transformer is connected to an external power supply, the output end of the transformer is connected with a cylindrical central conductor, the central conductor is arranged in the cylindrical metal tank body, and the axis of the central conductor coincides with the axis of the cylindrical metal tank body.
Further, the particle discharge device comprises a cylindrical insulating shell, wherein the inner surface of the insulating shell is provided with internal threads, both ports of the insulating shell are provided with conductor contact fingers, the outer surfaces of the conductor contact fingers are provided with external threads, and the external threads of the conductor contact fingers are connected with the internal threads of the insulating shell;
when the descending stroke of the executing end of the lifting device is maximum, one conductor contact finger is contacted with the central conductor; the other conductor contact finger is arranged on the executing end of the lifting device;
GIS particles are placed in a space formed by the insulating shell and the two conductor contact fingers.
Further, the lifting device is arranged as an electric lifting device or a mechanical lifting device, the execution end of the lifting device is made of or covered with insulating materials, and the pressurizing device is fixed on the execution end of the lifting device.
Further, the discharge data acquisition device comprises an electric field data acquisition module and a current and voltage data acquisition module, wherein the electric field data acquisition module is arranged on the cylindrical metal tank body and is electrically connected with the particle discharge device; the current and voltage data acquisition module is arranged on the pressurizing device and is electrically connected with the pressurizing device.
Further, the electric field data acquisition module comprises a high-frequency probe, the high-frequency probe is fixed on the cylindrical metal tank body, and the sensing end of the high-frequency probe is arranged in the cylindrical metal tank body.
Further, the current-voltage data acquisition module comprises a flange plate and a coupling capacitor, wherein the coupling capacitor is arranged at the output end of the transformer, a voltage terminal and a current terminal are arranged on the flange plate, the voltage terminal is electrically connected to an input test winding of the transformer, and the current terminal is electrically connected to an output side winding of the transformer.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
(1) The utility model provides a GIS particle discharge system capable of replacing particles, wherein the types and the sizes of GIS particles can be replaced according to experimental requirements so as to simulate discharge conditions under different working conditions.
(2) The utility model is provided with the discharge data acquisition device, can observe the electrical characteristics of the GID particle discharge process, and can promote the deep study of the particle discharge mechanism.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
fig. 1 is a side view of a GIS particle discharge system with replaceable particles according to the present utility model.
Fig. 2 is a top view of a GIS particle discharge system with replaceable particles according to the present utility model.
Fig. 3 is a schematic structural diagram of a particle discharge device provided by the utility model.
Fig. 4 is a schematic structural diagram of a flange plate according to the present utility model.
In the drawings, the reference numerals and corresponding part names:
the device comprises a 1-lifting device, a 2-central conductor, a 3-particle discharging device, a 4-square wave injection hole, a 5-high frequency probe, a 6-flange plate, a 7-coupling capacitor, an 8-transformer, a 9-observation window, a 10-insulating shell, 11-GIS particles, a 12-conductor contact finger, a 13-voltage terminal, a 14-current terminal, a 15-grounding terminal and a 16-input terminal.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
As shown in fig. 1 and fig. 2 together, a particle discharge system of a GIS capable of replacing particles includes a pressurizing device, a test cavity, a particle discharge device, a lifting device and a discharge data acquisition device. The pressurizing device, the lifting device and the discharge data acquisition device are all arranged on the test cavity, the output end of the pressurizing device is arranged in the test cavity, and the particle discharge device is arranged on the execution end of the lifting device. When the descending travel of the executing end of the lifting device is maximum, the particle discharging device is connected with the output end of the pressurizing device. And when the descending stroke of the executing end of the lifting device is minimum, the particle discharging device is positioned outside the test cavity. The discharge data acquisition device is electrically connected with the particle discharge device and the pressurizing device.
According to the utility model, by setting a laboratory environment, building an experiment platform, manufacturing a simulated particle discharge model and carrying out a particle discharge experiment, the characteristics and rules of a GIS particle discharge process are simulated.
In one possible embodiment, the test chamber is provided as a cylindrical metal can, the axis of which is arranged parallel to the horizontal plane, and the pressurizing device is arranged on the end face of the cylindrical metal can, and the lifting device is arranged on the side face of the cylindrical metal can.
In a possible embodiment, the device further comprises at least one observation window 9, wherein the observation window 9 is arranged on the side surface of the cylindrical metal tank body.
The discharge condition of the GIS particles can be observed or optically photographed through the observation window 9, and the observation window is fixed through the flange plate and can be replaced by a vacuum feed-through flange. The photons and electrons discharged from the inside are collected and measured by using photoelectric detection devices such as an optical fiber, a Faraday cup, a photomultiplier tube and the like.
In one possible embodiment, the metal can further comprises a square wave injection hole 4, wherein the square wave injection hole 4 is arranged on the side surface of the cylindrical metal can body.
In a possible embodiment, the pressurizing means is provided as a transformer 8, the input of the transformer 8 being connected to an external power source, the output of the transformer 8 being connected to a cylindrical central conductor 2, the central conductor 2 being provided inside a cylindrical metal can, and the axis of the central conductor 2 coinciding with the axis of the cylindrical metal can.
It should be noted that the central conductor 2 may be configured as a column with other shapes, such as a square column, a triangular prism, or other columns, so long as the central conductor 2 is located on the axis of the cylindrical metal can.
As shown in fig. 3, the particle discharge device 3 includes a cylindrical insulating housing 10, an inner surface of the insulating housing 10 is provided with internal threads, both ports of the insulating housing 10 are provided with conductor contact fingers 12, an outer surface of the conductor contact fingers 12 is provided with external threads, and the external threads of the conductor contact fingers 12 are connected with the internal threads of the insulating housing 10.
When the descending stroke of the actuating end of the lifting device is maximum, one of the conductor contact fingers 12 is in contact with the central conductor 2. The other conductor finger 12 is arranged on the actuating end of the lifting device.
GIS particles 11 are placed in a space formed by the insulating shell 10 and the two conductor contact fingers 12.
The particle-filled portion includes a quantity of particles, the types and sizes of which are replaceable and adjustable. The electrodes and the wires are connected with a high-voltage source and a discharge detection instrument, and the shell and the electrode support are made of insulating materials.
In practice, the appropriate particle type and size can be selected according to the experimental requirements, the particles are filled into the shell, and the electrode and the wire are connected. Then, a high voltage source and a discharge detecting instrument were connected to the electrode and the wire, respectively, and experiments were performed.
In one possible embodiment, the lifting device 1 is provided as an electric lifting device or a mechanical lifting device, and the material used for the actuating end of the lifting device 1 is an insulating material or covered with an insulating material, and the pressurizing device is fixed on the actuating end of the lifting device 1.
In one possible embodiment, the discharge data acquisition device comprises an electric field data acquisition module and a current voltage data acquisition module, wherein the electric field data acquisition module is arranged on the cylindrical metal tank body, and the electric field data acquisition module is electrically connected with the particle discharge device 3. The current and voltage data acquisition module is arranged on the pressurizing device and is electrically connected with the pressurizing device.
In one possible embodiment, the electric field data acquisition module includes a high frequency probe 5, the high frequency probe 5 is fixed on the cylindrical metal tank body, and the sensing end of the high frequency probe 5 is disposed inside the cylindrical metal tank body.
The discharge signal can be acquired through the high-frequency probe 5, so that the acquisition and analysis of electric field data are realized.
Alternatively, the embodiment adopts a metal tank body with the diameter of 380cm as the tank body of the GIS particle discharge system. The high frequency probe 5 is set as an ultrahigh frequency partial discharge probe.
In one possible embodiment, the current-voltage data acquisition module comprises a flange 6 and a coupling capacitor 7, the coupling capacitor 7 being arranged at the output of the transformer 8.
As shown in fig. 4, the flange 6 is provided with a voltage terminal 13 and a current terminal 14, the voltage terminal 13 is electrically connected to the input winding of the transformer 8, the current terminal 14 is electrically connected to the output winding of the transformer 8, and is connected to the ground terminal 15 via a large resistor, and is connected to the negative electrode of the voltage-current measuring instrument, the GIS housing and the ground terminal. The two terminals 16 of the input are connected to the zero and fire wires of the ac source respectively.
The voltage signal can be detected by a built-in coupling capacitor 7, and the current signal can be detected by a current sensor. The voltage waveform observation is directly connected with an oscilloscope probe on a voltage terminal 13 of the flange plate 6, the voltage is increased to observe a high-voltage output waveform, and the voltage terminal 13 is connected with a high-voltage end of the coupling capacitor 7. The maximum value of the voltage observation is 100V, the actual voltage is 100kV at the highest by conversion according to the transformation ratio 1000 of the built-in transformer 8, and the voltage terminal 13 cannot be short-circuited to the ground in actual use. For current waveform observation, the ground wire on the current output terminal needs to be removed, and the oscilloscope probe is connected to the current terminal 14, so that the current waveform can be observed, and the current terminal 14 is the high-voltage side tail end of the transformer. Through the arrangement, the current and voltage waveforms can be observed, and the electrical characteristics and rules of the GIS particle discharge process are obtained.
The utility model provides a GIS particle discharge system capable of replacing particles, wherein the types and the sizes of GIS particles can be replaced according to experimental requirements so as to simulate discharge conditions under different working conditions. The utility model is provided with the discharge data acquisition device, can observe the electrical characteristics of the GID particle discharge process, and can promote the deep study of the particle discharge mechanism.
The utility model realizes the simulation of the GIS particle discharge process, has the advantages of high experimental precision, good data accuracy, convenient operation and the like, and can provide basis for the reliability evaluation of GIS equipment.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The GIS particle discharge system capable of replacing particles is characterized by comprising a pressurizing device, a test cavity, a particle discharge device, a lifting device and a discharge data acquisition device;
the pressurizing device, the lifting device and the discharge data acquisition device are arranged on the test cavity, the output end of the pressurizing device is arranged in the test cavity, and the particle discharge device is arranged on the execution end of the lifting device; when the descending stroke of the executing end of the lifting device is maximum, the particle discharging device is connected with the output end of the pressurizing device; when the descending stroke of the executing end of the lifting device is minimum, the particle discharging device is positioned outside the test cavity; the discharge data acquisition device is electrically connected with the particle discharge device and the pressurizing device.
2. The particle-replaceable GIS particle discharge system of claim 1, wherein the test cavity is configured as a cylindrical metal can, an axis of the cylindrical metal can is parallel to a horizontal plane, the pressurizing device is disposed on an end surface of the cylindrical metal can, and the lifting device is disposed on a side surface of the cylindrical metal can.
3. The particle-replaceable GIS particle discharge system of claim 2, further comprising at least one viewing window (9), the viewing window (9) being disposed on a side of the cylindrical metal can.
4. The particle-replaceable GIS particle discharge system of claim 2, further comprising a square wave injection hole (4), the square wave injection hole (4) being disposed on a side of the cylindrical metal can.
5. The particle-replaceable GIS particle discharge system of claim 2, wherein the pressurizing means is provided as a transformer (8), an input of the transformer (8) is connected to an external power source, an output of the transformer (8) is connected to a cylindrical central conductor (2), the central conductor (2) is provided inside a cylindrical metal can, and an axis of the central conductor (2) coincides with an axis of the cylindrical metal can.
6. The particle-replaceable GIS particle discharge system according to claim 2, wherein the particle discharge device (3) comprises a cylindrical insulating housing (10), an inner surface of the insulating housing (10) is provided with an inner thread, both ports of the insulating housing (10) are provided with conductor contact fingers (12), an outer surface of the conductor contact fingers (12) is provided with an outer thread, and the outer thread of the conductor contact fingers (12) is connected with the inner thread of the insulating housing (10);
when the descending stroke of the executing end of the lifting device is maximum, one conductor contact finger (12) is contacted with the central conductor (2); the other conductor contact finger (12) is arranged on the executing end of the lifting device;
GIS particles (11) are placed in a space formed by the insulating shell (10) and the two conductor contact fingers (12).
7. The particle-replaceable GIS particle discharge system according to any one of claims 1 to 6, wherein the lifting device (1) is configured as an electric lifting device or a mechanical lifting device, and the material used for the execution end of the lifting device (1) is an insulating material or covered with an insulating material, and the pressurizing device is fixed on the execution end of the lifting device (1).
8. The particle-replaceable GIS particle discharge system according to claim 5, wherein the discharge data acquisition device comprises an electric field data acquisition module and a current-voltage data acquisition module, wherein the electric field data acquisition module is arranged on a cylindrical metal tank body, and the electric field data acquisition module is electrically connected with the particle discharge device (3); the current and voltage data acquisition module is arranged on the pressurizing device and is electrically connected with the pressurizing device.
9. The particle-replaceable GIS particle discharge system of claim 8, wherein the electric field data acquisition module comprises a high frequency probe (5), the high frequency probe (5) is fixed on a cylindrical metal tank, and the sensing end of the high frequency probe (5) is disposed inside the cylindrical metal tank.
10. The particle-replaceable GIS particle discharge system of claim 9, wherein the current-voltage data acquisition module comprises a flange plate (6) and a coupling capacitor (7), the coupling capacitor (7) being disposed on an output of the transformer (8), the flange plate (6) being provided with a voltage terminal electrically connected to an input winding of the transformer (8) and a current terminal electrically connected to an output winding of the transformer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321033909.8U CN220084990U (en) | 2023-05-04 | 2023-05-04 | GIS particle discharge system capable of replacing particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321033909.8U CN220084990U (en) | 2023-05-04 | 2023-05-04 | GIS particle discharge system capable of replacing particles |
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| Publication Number | Publication Date |
|---|---|
| CN220084990U true CN220084990U (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321033909.8U Active CN220084990U (en) | 2023-05-04 | 2023-05-04 | GIS particle discharge system capable of replacing particles |
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| Country | Link |
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| CN (1) | CN220084990U (en) |
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2023
- 2023-05-04 CN CN202321033909.8U patent/CN220084990U/en active Active
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