CN212011894U - Box-separating type multifunctional protection combined transformer structure - Google Patents
Box-separating type multifunctional protection combined transformer structure Download PDFInfo
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- CN212011894U CN212011894U CN202021054984.9U CN202021054984U CN212011894U CN 212011894 U CN212011894 U CN 212011894U CN 202021054984 U CN202021054984 U CN 202021054984U CN 212011894 U CN212011894 U CN 212011894U
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- transformer
- oil
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- oil tank
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- 238000005259 measurement Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model relates to a box-separating multifunctional protection combined transformer structure, a transformer chamber is divided into a main oil tank and an auxiliary oil tank, and the two oil tanks are communicated through a wall bushing; the oil conservator is divided into a main oil conservator and a sub-oil conservator, a gas relay is arranged between the main oil conservator and a main oil tank, and a gas relay is arranged between the sub-oil conservator and a secondary oil tank; the auxiliary oil tank is internally provided with a high-voltage switch, the main oil tank and the auxiliary oil tank are mutually independent, and after the high-voltage switch and the transformer body are separately arranged in the oil tank, when the high-voltage switch needs to be overhauled, only a small tank cover of the auxiliary oil tank needs to be opened, and a small amount of transformer oil is discharged. The whole operation process can be carried out only by manpower without a crane; the transformer protection is comprehensive, and high tension switchgear opens and shuts and can not pollute main tank transformer oil, the utility model discloses combined beautiful change and the magnificent advantage that becomes, made up into a neotype product structure, solved used high pressure load switch of combined transformer and damaged the not comprehensive problem of back pollution transformer oil and ware body and combined transformer protect function, had price ratio hua change material benefit, protect function ratio beautiful change comprehensive advantage.
Description
Technical Field
The utility model relates to a transformer, in particular to multi-functional protection combination formula transformer structure of branch case type.
Background
The conventional combined transformer integrates a high-voltage load switch and a plug-in full-range protection fuse (hereinafter collectively referred to as a high-voltage switch) inside an oil tank, the size of the switch is greatly reduced due to the heat dissipation, arc extinction and insulation performance of internal transformer oil, the whole transformer has the advantages of small occupied area and low one-time investment cost, so that a great number of users tend to select the combined transformer (American transformer) to replace a functional pre-installed transformer substation (Huacheng) with large occupied space, and more than 70% of boosting equipment in a wind power generation field selects the combined transformer according to statistics.
But has the following significant drawbacks:
firstly, the high-voltage switch is inconvenient to replace;
secondly, the high-voltage load switch, the plug-in type full-range protection fuse and the transformer body share one oil tank, and when the high-voltage load switch is damaged and needs to be replaced, the high-voltage load switch needs to be opened and oil is removed for replacement. Photovoltaic power plants have limited environments and space, requiring specialized crane equipment to be employed, which is time consuming and labor intensive.
Thirdly, the transformer has incomplete protection function
The combined transformer has the advantages that the protection facility only has fuse protection, the gas protection function is lacked, the detection is difficult when non-overload and short-circuit faults occur inside the transformer, and the protection is not comprehensive.
Pollution of transformer oil when high-voltage switch is damaged
Whether the high-voltage load switch is damaged or the fuse is damaged, a large amount of carbide and acetylene gas are generated in the burning process. Even if the fault point only occurs at the switch, the whole transformer oil is scrapped. Even if the transformer body has no fault, the transformer body is polluted by transformer oil, and the transformer body also needs to return to a factory for kerosene weather drying, so that a large amount of transportation cost and electric energy cost are wasted.
Free carbon pollution transformer oil produced when high-voltage switch is opened and closed
The switching process of the high-voltage load switch can generate a slight arc discharge phenomenon to generate free carbon and acetylene gas, although the quantity is small, the switching frequency is increased to present an increasing trend, the judgment of the internal operation condition of the transformer can be seriously influenced, and misjudgment is caused.
Disclosure of Invention
In order to solve the technical problem, the utility model discloses a many functional protection of branch case type combination formula transformer structure, its technical scheme is:
the transformer chamber is divided into a main oil tank and an auxiliary oil tank, and the two oil tanks are communicated through a wall bushing; the oil conservator is divided into a main oil conservator and a sub-oil conservator, a gas relay is arranged between the main oil conservator and a main oil tank, and a gas relay is arranged between the sub-oil conservator and a secondary oil tank; and a high-voltage switch is arranged in the auxiliary oil tank.
Furthermore, the high-voltage switch comprises a high-voltage load switch and a high-voltage fuse, wherein the internal wiring sequence is phase lines led out from the device body, a wall bushing, the fuse, the load switch and the high-voltage bushing, and the wall bushing between the main oil tank and the auxiliary oil tank connects the device body in the main oil tank and the high-voltage component in the auxiliary oil tank to form an electrical path.
Furthermore, a branch oil level indicator is arranged on the branch oil storage cabinet, and a main oil level indicator is arranged on the main oil storage cabinet.
Further, the low-voltage chamber includes low-voltage cabinet (including low-voltage circuit breaker, measurement and control device, terminal row, low-voltage surge protector) and supplementary dry change, UPS. An upper opening copper bar of a low-voltage circuit breaker in the low-voltage cabinet is connected with a low-voltage sleeve of the transformer, and a lower opening copper bar is connected with a cable; a transformer protection signal is arranged in the measurement and control device, the auxiliary dry transformer provides an auxiliary power supply, and the UPS provides a standby power supply when the equipment is powered off.
Furthermore, the auxiliary oil tank and the main oil tank are both provided with tank covers.
The utility model has the advantages that: the utility model discloses a multi-functional protection combination formula transformer structure of branch case type, its advantage as follows:
the main oil tank and the auxiliary oil tank are mutually independent, and after the high-voltage switch and the transformer body are arranged separately, when the high-voltage switch needs to be overhauled, only a small tank cover of the auxiliary oil tank needs to be opened, and a small amount of transformer oil is discharged. The whole operation process does not need a crane and can be carried out only by manpower.
Second, the transformer is protected completely
The transformer has increased gas protection, the operational aspect of detection transformer that can be more comprehensive, and the trouble can be in time discover through alarm signal, avoids the trouble accident of transformer to enlarge, causes big loss. After an alarm signal appears in the gas, the gas can be transmitted to a measurement and control device in the low-voltage cabinet through a connected signal wire, and is transmitted to a background through a 485 wire for alarming to remind operation and maintenance personnel to check.
Opening and closing of high-voltage switch will not pollute transformer oil
Free carbon generated by the high-voltage switch in and out is only inside the auxiliary oil tank, the main oil tank cannot be influenced, the pertinence is stronger when the transformer oil is sampled and analyzed by a three-ratio method, and the fault of the transformer body or the fault of the high-voltage switch can be distinguished.
The structure combines the advantages of beautiful change and beautiful change, combines a novel product structure, solves the problems that the high-voltage load switch used by the combined transformer pollutes the transformer oil and the transformer body after being damaged and the combined transformer has incomplete protection function, and has the advantages of more economical price than beautiful change and more comprehensive protection function than beautiful change.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a side view of FIG. 1;
as shown in the figure, 1 high-voltage live sensor, 2 high-voltage bushing, 3 high-voltage arrester, 4 high-voltage fuse, 5 high-voltage load switch, 6 auxiliary oil tank, 7 sub-tank oil level gauge, 8 sub-tank gas relay, 9 sub-tank oil conservator, 10 main tank oil conservator, 11 main tank gas relay, 12 main tank oil level gauge, 13 main oil tank, 14 radiator, 15 high-voltage chamber, 16 low-voltage chamber.
Detailed Description
As shown in the figure, the utility model relates to a box-separating multifunctional protection combined transformer structure, which comprises a high-pressure chamber 15, a low-pressure chamber 16, a transformer chamber and an oil conservator, wherein the transformer chamber, the low-pressure chamber and the high-pressure chamber are all box structures, the front part of the transformer chamber is the low-pressure chamber, one side of the transformer chamber is the high-pressure chamber, a radiating fin 14 is arranged at the back part of the transformer chamber, the low-pressure chamber and the high-pressure chamber are mutually fixedly connected and in a shape like a Chinese character 'pin', the oil conservator is arranged on the transformer chamber, a high-voltage electrified sensor 1, a high-voltage sleeve 2 and a high-voltage arrester 3 are arranged in the high-pressure chamber, the transformer chamber is divided into a main oil tank 13 and an auxiliary oil tank 6, an oil tank for containing a vessel body is called as a main oil tank 13, a small oil tank, the two oil tanks need to be connected with each other in current and completely isolated from each other (no oil exchange). And a high-voltage switch, namely a high-voltage load switch 5 and a high-voltage fuse 4, is arranged in the auxiliary oil tank.
The combined transformer is characterized in that an oil conservator is additionally arranged on the combined transformer by combining the advantages of Hua-Shi, the oil conservator is divided into a main oil conservator 10 and a branch oil conservator 9, a main tank gas relay 11 is arranged between the main oil conservator and a main oil tank, and a branch tank gas relay 8 is arranged between the branch oil conservator and an auxiliary oil tank, so that the gas protection function of the transformer is realized; the oil conservator adopts a box-separating structure and is respectively connected with the main and auxiliary oil tanks of the transformer, so that the oil level compensation function of the main and auxiliary oil tanks is realized. The scheme can realize the box separation and multifunctional protection of the combined transformer; the sub-tank oil conservator is provided with a sub-tank oil level gauge 7, and the main tank oil conservator is provided with a main tank oil level gauge 12.
Further, the low-voltage chamber includes low-voltage cabinet (including low-voltage circuit breaker, measurement and control device, terminal row, low-voltage surge protector) and supplementary dry change, UPS. An upper opening copper bar of a low-voltage circuit breaker in the low-voltage cabinet is connected with a low-voltage sleeve of the transformer, and a lower opening copper bar is connected with a cable; a transformer protection signal is arranged in the measurement and control device, the auxiliary dry transformer provides an auxiliary power supply, and the UPS provides a standby power supply when the equipment is powered off.
The utility model discloses a multi-functional protection combination formula transformer structure of branch case type, its advantage as follows:
the main oil tank and the auxiliary oil tank are mutually independent, and after the high-voltage switch and the transformer body are arranged separately, when the high-voltage switch needs to be overhauled, only a small tank cover of the auxiliary oil tank needs to be opened, and a small amount of transformer oil is discharged. The whole operation process does not need a crane and can be carried out only by manpower.
Second, the transformer is protected completely
The transformer has increased gas protection, the operational aspect of detection transformer that can be more comprehensive, and the trouble can be in time discover through alarm signal, avoids the trouble accident of transformer to enlarge, causes big loss. After an alarm signal appears in the gas, the gas can be transmitted to a measurement and control device in the low-voltage cabinet through a connected signal wire, and is transmitted to a background through a 485 wire for alarming to remind operation and maintenance personnel to check.
Opening and closing of high-voltage switch will not pollute transformer oil
Free carbon generated by the high-voltage switch in and out is only inside the auxiliary oil tank, the main oil tank cannot be influenced, the pertinence is stronger when the transformer oil is sampled and analyzed by a three-ratio method, and the fault of the transformer body or the fault of the high-voltage switch can be distinguished.
The utility model discloses a combined beautiful advantage that becomes and hua become, made up into a neotype product structure, solved used high-pressure load switch of combined type transformer and damaged the not comprehensive problem of back pollution transformer oil and ware body and combined type transformer protect function, had the price than hua becoming substantial, protect function becomes comprehensive advantage than beautiful.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (5)
1. The box-separating multifunctional protection combined transformer structure comprises a high-pressure chamber, a low-pressure chamber, a transformer chamber and an oil conservator, wherein the oil conservator is arranged on the transformer chamber, and a high-voltage electrified sensor, a high-voltage sleeve and a high-voltage arrester are arranged in the high-pressure chamber; the oil conservator is divided into a main oil conservator and a sub-oil conservator, a gas relay is arranged between the main oil conservator and a main oil tank, and a gas relay is arranged between the sub-oil conservator and a secondary oil tank; and a high-voltage switch is arranged in the auxiliary oil tank.
2. The split-type multifunctional protection combined transformer structure of claim 1, wherein the high-voltage switch comprises a high-voltage load switch and a high-voltage fuse, the internal wiring sequence is phase line-wall bushing-fuse-load switch-high-voltage bushing led out from the transformer body, and the wall bushing between the main oil tank and the auxiliary oil tank connects the transformer body in the main oil tank and the high-voltage component in the auxiliary oil tank to form an electrical path.
3. The structure of the split-tank type multifunctional protective combined transformer of claim 1, wherein the split-tank oil conservator is provided with a split-tank oil level indicator, and the main-tank oil conservator is provided with a main-tank oil level indicator.
4. The box-splitting multifunctional protection combined transformer structure of claim 1, wherein the low-voltage chamber comprises a low-voltage cabinet and an auxiliary dry transformer and a UPS, an upper copper bar of a low-voltage circuit breaker in the low-voltage cabinet is connected with a low-voltage bushing of the transformer, and a lower copper bar is connected with a cable; a transformer protection signal is arranged in the measurement and control device, the auxiliary dry transformer provides an auxiliary power supply, and the UPS provides a standby power supply when the equipment is powered off.
5. The split-box type multifunctional protection combined transformer structure of claim 1, wherein the secondary oil tank and the main oil tank are provided with tank covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021054984.9U CN212011894U (en) | 2020-06-10 | 2020-06-10 | Box-separating type multifunctional protection combined transformer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021054984.9U CN212011894U (en) | 2020-06-10 | 2020-06-10 | Box-separating type multifunctional protection combined transformer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212011894U true CN212011894U (en) | 2020-11-24 |
Family
ID=73417499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021054984.9U Expired - Fee Related CN212011894U (en) | 2020-06-10 | 2020-06-10 | Box-separating type multifunctional protection combined transformer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212011894U (en) |
-
2020
- 2020-06-10 CN CN202021054984.9U patent/CN212011894U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 |