CN220138104U - GIS is with experimental voltage transformer - Google Patents
GIS is with experimental voltage transformer Download PDFInfo
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- CN220138104U CN220138104U CN202321451685.2U CN202321451685U CN220138104U CN 220138104 U CN220138104 U CN 220138104U CN 202321451685 U CN202321451685 U CN 202321451685U CN 220138104 U CN220138104 U CN 220138104U
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- 238000012360 testing method Methods 0.000 claims abstract description 40
- 239000012212 insulator Substances 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 230000007423 decrease Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 230000017105 transposition Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a test voltage transformer for a GIS, which is characterized in that: the device comprises a basin-type insulator, a conductive tube, a shell, a body part, an inflation valve, a test junction box, a PT junction box, a base and an explosion-proof piece; the transformer is of a structure to realize the power and action of the transformer, so that the volume of the transformer is reduced, the transformer is suitable for small-range power supply, the manufacturing cost of the transformer is reduced, and a larger transformation ratio can be realized; the high-voltage coil with the pagoda structure adopted in the body part has the advantages of uniform voltage distribution and good insulating property, and the low-voltage winding with the layered transposition structure is adopted and the air passage is additionally arranged, so that the winding loss is reduced, the heat dissipation performance is improved, and the inflammable risk is reduced compared with an oil immersed transformer; the test junction box is added for connecting a test voltage source, and a capacitive voltage divider is arranged in the test junction box and used for measuring test voltage during a test; the voltage transformer can be used as a conventional transformer and can meet the requirement of PVT (physical vapor transport) for testing.
Description
Technical Field
The utility model relates to the field of voltage transformers for GIS, in particular to a test voltage transformer for GIS.
Background
In general, a transformer is a device for changing an AC voltage or current by using an electromagnetic induction phenomenon. The traditional transformer generally adopts an oil-immersed insulating structure, and has the defects of large volume, heavy structure, easy aging, easy occurrence of fire hazard, poor space electromagnetic interference resistance, low electric insulation strength, large core loss, large local discharge capacity, high equipment cost and the like, and is not easy to be used for small-range power supply, so the utility model is a gas-insulated transformer which has small volume, reasonable structural arrangement and low manufacturing cost and is suitable for small-range power supply.
In addition, the conventional gas-insulated transformer with small-range power supply cannot meet the requirements for GIS test.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a test voltage transformer for a GIS, which can solve the problem that the conventional voltage transformer cannot meet the GIS test without a capacitive voltage divider structure.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a GIS is with experimental voltage transformer, its innovation point lies in: the device comprises a basin-type insulator, a conductive tube, a shell, a body part, an inflation valve, a test junction box, a PT junction box, a base and an explosion-proof piece;
the top end of the shell is provided with a basin-type insulator, and the bottom of the basin-type insulator is fixed with the top end of the shell through a seal head; a test junction box and a PT junction box are arranged on the side wall of the shell; a capacitive voltage divider is arranged in the test junction box; the conducting tube is arranged along the vertical direction, the bottom end of the conducting tube is connected to the body part, and the top end of the conducting tube is connected to the basin-type insulator;
the inflation valve is arranged on the side wall of the shell and is used for inflating gas into the shell;
the device body part is arranged on the base, the device body comprises a high-voltage coil, a low-voltage coil, an iron core, a side shield and a bottom shield, the high-voltage coil is sleeved on the outer side of the low-voltage coil, the low-voltage coil is sleeved on the outer side of the iron core, the side shields are arranged at two ends of the iron core, the bottom shield is arranged below the iron core, the iron core is fixed in the shell through an iron core clamping piece, the outer circular surface of the high-voltage coil is an inclined surface which gradually decreases from inside to outside, and the high-voltage coil is connected with the basin-type insulator;
the explosion-proof piece is arranged on the bottom end of the shell.
Further, the high-voltage coil is wound on the high-voltage insulating cylinder, the high-voltage insulating cylinder is sleeved on the outer side of the low-voltage coil, the low-voltage coil is wound on the outer side of the low-voltage insulating cylinder, the low-voltage insulating cylinder is sleeved on the outer side of the iron core, and the low-voltage coil is a spiral winding.
Further, the bottom shield is fixed to the core clamp.
The utility model has the advantages that:
1) The test voltage transformer for the GIS has novel structure, adopts the structure of the transformer to realize the power and the action of the transformer, reduces the volume of the transformer, is suitable for small-range power supply, reduces the manufacturing cost of the transformer, and can realize larger transformation ratio; the high-voltage coil with the pagoda structure adopted in the body part has the advantages of uniform voltage distribution and good insulating property, and the low-voltage winding with the layered transposition structure is adopted and the air passage is additionally arranged, so that the winding loss is reduced, the heat dissipation performance is improved, and the inflammable risk is reduced compared with an oil immersed transformer; the test junction box is added for connecting a test voltage source, and a capacitive voltage divider is arranged in the test junction box and used for measuring test voltage during a test; the voltage transformer can be used as a conventional transformer and can meet the requirement of PVT (physical vapor transport) for testing.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural diagram of a test voltage transformer for a GIS according to the present utility model.
Fig. 2 is a circuit structure diagram of a test junction box and a PT junction box of the test voltage transformer for GIS according to the present utility model.
Fig. 3 is a partial sectional view of a body part of a test voltage transformer for GIS according to the present utility model.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The test voltage transformer for the GIS shown in the figures 1 to 3 comprises a basin-type insulator 1, a conductive pipe 2, a shell 3, a body part 4, an inflation valve 5, a test junction box 6, a PT junction box 7, a base 8 and an explosion-proof sheet 9;
the top end of the shell 3 is provided with a basin-type insulator 1, and the bottom of the basin-type insulator 1 is fixed with the top end of the shell 3 through a seal head; a test junction box 6 and a PT junction box 7 are arranged on the side wall of the shell 3; a capacitive voltage divider is arranged in the test junction box 7; the conducting tube 2 is arranged along the vertical direction, the bottom end of the conducting tube 2 is connected to the body part 4, and the top end of the conducting tube 2 is connected to the basin-type insulator 1;
the inflation valve 5 is arranged on the side wall of the shell and is used for inflating the shell 3 with gas;
the body part 4 is arranged on the base, the body comprises a high-voltage coil 41, a low-voltage coil 42, an iron core 43, a side shield 44 and a bottom shield 45, the high-voltage coil 41 is sleeved outside the low-voltage coil 42, the low-voltage coil 42 is sleeved outside the iron core 43, the side shields 44 are arranged at two ends of the iron core, the bottom shield 45 is arranged below the iron core 43, the iron core 43 is fixed in the shell through an iron core clamping piece 46, the outer circular surface of the high-voltage coil 41 is an inclined surface which gradually decreases from inside to outside, and the high-voltage coil 41 is connected with the basin-type insulator 1;
a bursting disc 9 is provided on the bottom end of the housing 3.
The high-voltage coil 41 is wound on a high-voltage insulating cylinder, the high-voltage insulating cylinder is sleeved outside the low-voltage coil 42, the low-voltage coil 42 is wound outside the low-voltage insulating cylinder, the low-voltage insulating cylinder is sleeved outside the iron core 43, and the low-voltage coil 42 is a spiral winding.
The bottom shield 45 is secured to the core clip 46.
The working principle of the utility model is as follows: the GIS test voltage transformer is novel in structure, the power and the action of the transformer are realized by adopting the structure of the transformer, the volume of the transformer is reduced, the transformer is suitable for small-range power supply, the manufacturing cost of the transformer is reduced, and meanwhile, the larger transformation ratio can be realized; the high-voltage coil with the pagoda structure adopted in the body part has the advantages of uniform voltage distribution and good insulating property, and the low-voltage winding with the layered transposition structure is adopted and the air passage is additionally arranged, so that the winding loss is reduced, the heat dissipation performance is improved, and the inflammable risk is reduced compared with an oil immersed transformer; the test junction box is added for connecting a test voltage source, and a capacitive voltage divider is arranged in the test junction box and used for measuring test voltage during a test; the voltage transformer can be used as a conventional transformer and can meet the requirement of PVT (physical vapor transport) for testing.
It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a GIS is with experimental voltage transformer which characterized in that: the device comprises a basin-type insulator, a conductive tube, a shell, a body part, an inflation valve, a test junction box, a PT junction box, a base and an explosion-proof piece;
the top end of the shell is provided with a basin-type insulator, and the bottom of the basin-type insulator is fixed with the top end of the shell through a seal head; a test junction box and a PT junction box are arranged on the side wall of the shell; a capacitive voltage divider is arranged in the test junction box; the conducting tube is arranged along the vertical direction, the bottom end of the conducting tube is connected to the body part, and the top end of the conducting tube is connected to the basin-type insulator;
the inflation valve is arranged on the side wall of the shell and is used for inflating gas into the shell;
the device body part is arranged on the base, the device body comprises a high-voltage coil, a low-voltage coil, an iron core, a side shield and a bottom shield, the high-voltage coil is sleeved on the outer side of the low-voltage coil, the low-voltage coil is sleeved on the outer side of the iron core, the side shields are arranged at two ends of the iron core, the bottom shield is arranged below the iron core, the iron core is fixed in the shell through an iron core clamping piece, the outer circular surface of the high-voltage coil is an inclined surface which gradually decreases from inside to outside, and the high-voltage coil is connected with the basin-type insulator;
the explosion-proof piece is arranged on the bottom end of the shell.
2. The experimental voltage transformer for GIS according to claim 1, wherein: the high-voltage coil is wound on the high-voltage insulating cylinder, the high-voltage insulating cylinder is sleeved on the outer side of the low-voltage coil, the low-voltage coil is wound on the outer side of the low-voltage insulating cylinder, the low-voltage insulating cylinder is sleeved on the outer side of the iron core, and the low-voltage coil is a spiral winding.
3. The experimental voltage transformer for GIS according to claim 1, wherein: the bottom shield is secured to the core clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321451685.2U CN220138104U (en) | 2023-06-08 | 2023-06-08 | GIS is with experimental voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321451685.2U CN220138104U (en) | 2023-06-08 | 2023-06-08 | GIS is with experimental voltage transformer |
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| Publication Number | Publication Date |
|---|---|
| CN220138104U true CN220138104U (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321451685.2U Active CN220138104U (en) | 2023-06-08 | 2023-06-08 | GIS is with experimental voltage transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116705481A (en) * | 2023-06-08 | 2023-09-05 | 江苏思源赫兹互感器有限公司 | A Test Voltage Transformer for GIS |
-
2023
- 2023-06-08 CN CN202321451685.2U patent/CN220138104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116705481A (en) * | 2023-06-08 | 2023-09-05 | 江苏思源赫兹互感器有限公司 | A Test Voltage Transformer for GIS |
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