CN211265344U - Novel transmission and transformation station device - Google Patents
Novel transmission and transformation station device Download PDFInfo
- Publication number
- CN211265344U CN211265344U CN202020089929.7U CN202020089929U CN211265344U CN 211265344 U CN211265344 U CN 211265344U CN 202020089929 U CN202020089929 U CN 202020089929U CN 211265344 U CN211265344 U CN 211265344U
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- transformer
- vacuum arc
- arc extinguish
- chamber
- extinguish chamber
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 230000009466 transformation Effects 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000009471 action Effects 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 claims description 11
- 230000005684 electric field Effects 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 241000208199 Buxus sempervirens Species 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a novel power transmission and transformation station device, which belongs to the technical field of power transmission and transformation settings and comprises a low-voltage cabinet and a transformer, wherein the low-voltage cabinet is hung on one side of the transformer, the transformer is connected with a transformer sleeve, a vacuum arc extinguish chamber is arranged in the transformer sleeve, and a first insulating gel layer for fixing the vacuum arc extinguish chamber and isolating the vacuum arc extinguish chamber from transformer oil is filled between the vacuum arc extinguish chamber and the transformer sleeve; the lower end of the vacuum arc extinguish chamber is directly connected with the transformer, and the pull rod at the upper end of the vacuum arc extinguish chamber is connected with an operating mechanism for controlling the opening/closing action of the vacuum arc extinguish chamber. The utility model discloses with the vacuum interrupter setting in the transformer bushing, the vacuum interrupter can frequently open/close up to ten thousand, has solved the oily load switch of device in the oil tank that traditional American case becomes and can not frequently be operated, the tubular fuse all will be changed after short-circuit current once, the problem of undercurrent difficulty of breaking.
Description
Technical Field
The utility model belongs to the technical field of the power transmission and transformation sets up, concretely relates to novel power transmission and transformation station device.
Background
The common power transmission and transformation station devices comprise an European box transformer substation and an American box transformer substation, wherein a low-voltage cabinet, a transformer and a high-voltage cabinet are combined in mutually isolated boxes, and the boxes are large in size and large in occupied area.
The American box transformer is characterized in that a low-voltage cabinet is hung on one side of a transformer, an oil type load switch and a tubular fuse are installed in an oil tank of the transformer, line faults are protected, load dispatching is switched, and high-voltage cables directly lead out, so that the size of the American box transformer is greatly reduced compared with that of an European box transformer, the occupied area is reduced by about 30%, and the American box transformer is mostly used in photovoltaic power generation and wind power generation equipment in China. However, the oil load switch of the oil tank device of the American-style tank transformer cannot be frequently operated, the small current is difficult to cut off, the oil quality of the transformer is deteriorated when the transformer is cut off, the insulation level is reduced, the potential danger of explosion and ignition exists, and the tubular fuse in the oil tank needs to be replaced after short-circuit current is passed once, so that the replacement is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel defeated transformer substation device solves the oil load switch of device in the oil tank that American case becomes and can not frequently operate, and the undercurrent is cut off the difficulty, leads to transformer oil quality degradation when cutting off, reduces insulating level, has the hidden danger that the explosion catches fire more than, and tubular fuse in the oil tank all will change after once short-circuit current, changes the problem of difficulty.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel power transmission and transformation station device comprises a low-voltage cabinet and a transformer, wherein the low-voltage cabinet is hung on one side of the transformer, a transformer sleeve is connected onto the transformer, a vacuum arc-extinguishing chamber is arranged in the transformer sleeve, and a first insulating gel layer used for fixing the vacuum arc-extinguishing chamber and isolating the vacuum arc-extinguishing chamber from transformer oil is filled between the vacuum arc-extinguishing chamber and the transformer sleeve; the lower end of the vacuum arc extinguish chamber is directly connected with the transformer, and the pull rod at the upper end of the vacuum arc extinguish chamber is connected with an operating mechanism for controlling the opening/closing action of the vacuum arc extinguish chamber.
Preferably, vacuum interrupter sets up in the explosion chamber sleeve, and the explosion chamber sleeve pipe setting of installing vacuum interrupter is intraductal at the transformer sleeve, fills the second insulating gel layer that is used for fixed explosion chamber sleeve pipe and keeps apart vacuum interrupter and transformer oil between explosion chamber sleeve pipe and the transformer sleeve pipe.
Preferably, an electric field voltage-sharing device is arranged at the direct connection position of the vacuum arc-extinguishing chamber and the transformer.
Preferably, the lower end of the transformer bushing is provided with an electronic voltage/current transformer.
Preferably, the operating mechanism is a permanent magnet operating mechanism or a spring operating mechanism.
Preferably, the arc extinguish chamber sleeve is a capacitor sleeve wound by epoxy glass cloth or an epoxy resin sleeve cast by epoxy resin.
Compared with the prior art, the utility model, the beneficial effects are that:
1. the utility model discloses with the vacuum interrupter setting in the transformer bushing, close the branch of operating mechanism to the vacuum interrupter and operate the realization to the short-circuit fault protection and the load distribution transfer of power transmission and distribution lines, the vacuum interrupter can frequently open/close up to ten thousand, and American case becomes about 10 times, and the oil load switch of device can not frequently be operated in the oil tank that has solved traditional American case and become, the tubular fuse all will be changed, the problem of undercurrent difficulty of breaking after once short-circuit current. In addition, the vacuum arc-extinguishing chamber is sealed in the insulating sleeve, is filled with insulating gel and is isolated from transformer oil, so that the opening/closing of the vacuum arc-extinguishing chamber does not influence the oil quality, and the vacuum arc-extinguishing chamber sleeve are sealed in the transformer sleeve as a whole, so that the vacuum arc-extinguishing chamber has the advantages of moisture resistance, fire resistance and explosion resistance, and the safety of a power system is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is an enlarged view of part A of FIG. 2;
fig. 4 is a schematic structural view of a field grading device according to a second embodiment;
FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;
in the figure: the low-voltage cabinet 100, the transformer 200, the transformer bushing 300, the vacuum arc-extinguishing chamber 400, the first insulating gel layer 500, the electronic voltage/current transformer 600, the permanent magnet operating mechanism 700, the controller 800, the guide rod 900, the spring operating mechanism 1000, the operating rod 1001, the crank arm 1002, the electric field voltage-sharing device 1100, the high-voltage conductor 1101, the zero screen 1102, the shielding layer 1103, the voltage dividing screen 1104 and the insulating cylinder 1105.
Detailed Description
For a better understanding of the present invention by those skilled in the art, the present invention will be further described with reference to the following detailed description:
as shown in fig. 1, a novel power transmission and transformation station device comprises a low voltage cabinet 100 and a transformer 200, wherein the low voltage cabinet 100 is hung on one side of the transformer 200, the transformer 200 is connected with a transformer bushing 300, a vacuum arc-extinguishing chamber 400 is arranged in the transformer bushing 300, and a first insulating gel layer 500 for fixing the vacuum arc-extinguishing chamber 400 and isolating the vacuum arc-extinguishing chamber 400 from transformer oil is filled between the vacuum arc-extinguishing chamber 400 and the transformer bushing 300; the lower end of the vacuum arc extinguish chamber 400 is directly connected with the transformer 200, the lower end of the transformer bushing 300 is provided with the electronic voltage/current transformer 600, the pull rod at the upper end of the vacuum arc extinguish chamber 400 is connected with an operating mechanism for controlling the opening/closing action of the vacuum arc extinguish chamber 400, the operating mechanism is a permanent magnet operating mechanism or a spring operating mechanism, the operating mechanism in the embodiment is a permanent magnet operating mechanism 700 arranged at the top of the transformer bushing 300, the transformer 200 is provided with a controller 800 for controlling the permanent magnet operating mechanism, and the permanent magnet operating mechanism 700 is in the conventional design. The transformer bushing 300 is provided with a guide 900 for connecting a high voltage line, which can be directly connected to an overhead transmission line.
Example two
The second embodiment is basically the same as the first embodiment in technical solution, and the difference is that: as shown in fig. 2-4, an electric field voltage-sharing device 1100 is disposed at a direct connection between the vacuum interrupter 400 and the transformer 200, the electric field voltage-sharing device 1100 includes an insulating cylinder 1105, a high-voltage conductor 1101, a zero screen 1102, a shielding layer 1103 and a plurality of partial pressure screens 1104, the zero screen 1102, the shielding layer 1103 and the partial pressure screens 1104 are all made of conductive materials, the shielding layer 1103 is a conductive cylinder sleeved outside the high-voltage conductor 1101, the shielding layer 1103 is sleeved with a plurality of partial pressure screens 1104, the shielding layer 1103 and the plurality of partial pressure screens 1104 are coaxial, the length of the plurality of partial pressure screens 1104 decreases from inner to outer in sequence to form a date core shape, the shielding layer 1103 and the partial pressure screens 1104 are separated by insulating layers, the zero screen 1102 is sleeved outside the partial pressure screens 1104, the zero screen 1102 is cylindrical, the inner wall of the zero screen 1102 is connected with the outermost partial pressure screens 1104 by the insulating layers, the outer wall of, the middle part of the outer wall of the insulating cylinder 1105 is provided with a connecting flange 1200, the insulating cylinder 1105 is connected with the transformer 200 through the connecting flange 1200, and the bottom end of the transformer bushing 300 is connected with the flange of the insulating cylinder 1105.
In this embodiment, the multi-layer voltage dividing screen 1104 divides voltage layer by layer, the high voltage on the high-voltage conductor 1101 is gradually reduced, and the voltage is zero when reaching the zero screen 1102, the voltage dividing screens 1104 and the voltage dividing screens 1104 are connected with the zero screen 1102 or the shielding layer 1103 through insulating layers to bear the voltage between layers, when the vacuum interrupter 400 is in different static states or different action states, the electric field voltage equalizing mechanism 1100 can perform high voltage equalizing operation, thereby greatly improving the overall voltage withstand level of the transformer bushing 300, and solving the problem that the overall voltage withstand is not too high after the vacuum interrupter 400 is additionally arranged in the transformer bushing 300.
EXAMPLE III
The third embodiment is basically the same as the first embodiment in technical solution, and the difference is that: as shown in fig. 5, the operating mechanism in this embodiment is a spring operating mechanism 1000, the spring operating mechanism 1000 is connected to a connecting lever 1002 through an operating rod 1001, and the connecting lever is connected to a pull rod at the upper end of the vacuum interrupter 400. The spring operating mechanism is of conventional design.
Example four
The fourth embodiment is basically the same as the first embodiment in technical solution, and the difference is that: the vacuum interrupter 400 in this embodiment is disposed in an interrupter sleeve, the interrupter sleeve in which the vacuum interrupter 400 is installed is disposed in a transformer sleeve 300, and a second insulating gel layer for fixing the interrupter sleeve and isolating the vacuum interrupter 400 from transformer oil is filled between the interrupter sleeve and the transformer sleeve 300. The arc extinguish chamber sleeve is a capacitor sleeve wound by epoxy glass cloth or an epoxy resin sleeve cast by epoxy resin. The arc extinguish chamber sleeve in the embodiment is a capacitor sleeve wound by epoxy glass cloth.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel transmission and transformation substation device, includes low-voltage cabinet (100), transformer (200), and low-voltage cabinet (100) are hung and are leaned on in transformer (200) one side, are connected with transformer bushing (300) on transformer (200), its characterized in that: a vacuum arc-extinguishing chamber (400) is arranged in the transformer bushing (300), and a first insulating gel layer (500) for fixing the vacuum arc-extinguishing chamber (400) and isolating the vacuum arc-extinguishing chamber (400) from transformer oil is filled between the vacuum arc-extinguishing chamber (400) and the transformer bushing (300); the lower end of the vacuum arc extinguish chamber (400) is directly connected with the transformer (200), and the pull rod at the upper end of the vacuum arc extinguish chamber (400) is connected with an operating mechanism for controlling the opening/closing action of the vacuum arc extinguish chamber.
2. The new transmission and substation device of claim 1, characterized in that: vacuum interrupter (400) set up in the explosion chamber sleeve pipe, and the explosion chamber sleeve pipe setting of installing vacuum interrupter (400) is in transformer bushing (300), and it is used for fixed explosion chamber sleeve pipe and with the second insulating gel layer of vacuum interrupter and transformer oil isolation to fill between explosion chamber sleeve pipe and transformer bushing (300).
3. A novel electric power transmission and transformation station apparatus as claimed in claim 1 or 2, wherein: and an electric field voltage-sharing device is arranged at the direct connection position of the vacuum arc-extinguishing chamber and the transformer.
4. The new transmission and substation device of claim 3, wherein: the lower end of the transformer bushing (300) is provided with an electronic voltage/current transformer (600).
5. The new transmission and substation device of claim 4, wherein: the operating mechanism is a permanent magnet operating mechanism (700) or a spring operating mechanism (1000).
6. The new transmission and substation device of claim 5, wherein: the arc extinguish chamber sleeve is a capacitor sleeve wound by epoxy glass cloth or an epoxy resin sleeve cast by epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020089929.7U CN211265344U (en) | 2020-01-16 | 2020-01-16 | Novel transmission and transformation station device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020089929.7U CN211265344U (en) | 2020-01-16 | 2020-01-16 | Novel transmission and transformation station device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211265344U true CN211265344U (en) | 2020-08-14 |
Family
ID=71953402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020089929.7U Expired - Fee Related CN211265344U (en) | 2020-01-16 | 2020-01-16 | Novel transmission and transformation station device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211265344U (en) |
-
2020
- 2020-01-16 CN CN202020089929.7U patent/CN211265344U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200814 |