CN204904973U - Oil -immersed transformer - Google Patents
Oil -immersed transformer Download PDFInfo
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- CN204904973U CN204904973U CN201520682659.XU CN201520682659U CN204904973U CN 204904973 U CN204904973 U CN 204904973U CN 201520682659 U CN201520682659 U CN 201520682659U CN 204904973 U CN204904973 U CN 204904973U
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- oil
- reserve tank
- fuel reserve
- tank
- described fuel
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Abstract
The utility model discloses an oil -immersed transformer, comprises an oil tank, the oil tank upper end is connected with big lid, cover greatly be provided with with the buchholz relay of oil tank intercommunication, cover greatly still be provided with with the batch oil tank of oil tank intercommunication, the liquid level height of batch oil tank is higher than liquid level height in the buchholz relay. The utility model discloses simple structure is higher than the liquid level height in the buchholz relay through the liquid level height that sets up batch oil tank and batch oil tank, is favorable to the batch oil tank to pass through the oil tank to the relay fuel feeding to the oil pocket that makes the relay is full of oil all the time, can prevent not only that the transformer from can lead to burning out because of lacking oil, can also guarantee the normal operating of buchholz relay, makes power supply normal operating.
Description
Technical field
The utility model belongs to power supplying and distributing equipment technical field, particularly a kind of oil-filled transformer.
Background technology
Corrugated Shells full-sealed transformer is the one of oil-filled transformer, and the change of transformer oil volume realizes by the contraction of transformer Corrugated Shells entirely, and according to the rules, the transformer of more than 800KVA capacity should install Buchholz relay protective device.During normal operation, Buchholz relay planted agent is full of transformer oil, because Buchholz relay is arranged on the top of large lid, during the change of transformer operating temperature, the oil mass of Buchholz relay inside is likely made to reduce, this will cause Buchholz relay action, thus causes user cannot electricity consumption.If Buchholz relay is out of service, transformer can be caused again to lose protection.And if in the fuel tank of simultaneously transformer, oil mass reduces, and transformer also can be caused to burn.
Utility model content
For the technical problem existed in prior art, the utility model provides one can to fuel tank and Buchholz relay fuel feeding, to make in Buchholz relay oil-overflow oil-filled transformer all the time.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of oil-filled transformer, comprise fuel tank, described fuel tank upper end is connected with covering greatly, describedly cover greatly the Buchholz relay being provided with and being communicated with described fuel tank, describedly cover greatly the fuel reserve tank being also provided with and being communicated with described fuel tank, the liquid level of described fuel reserve tank is higher than the liquid level in described Buchholz relay.
As preferably, the sidewall of described fuel reserve tank is provided with the oil level indicator be communicated with described fuel reserve tank.
As preferred further, described oil level indicator comprises the glass tube being carved with graduation mark, respectively to being provided with screwed hole on the upper/lower terminal sidewall of described glass tube, pass to make hollow screw and its hollow cavity is communicated with described fuel reserve tank, the sidewall of described hollow screw offering hydraulic fluid port with the inner space with described glass tube.
As preferably, the outer wall of described fuel reserve tank is also provided with protective cover, the side that described protective cover deviates from the outer wall of described fuel reserve tank has opening, and described oil level indicator is positioned at described protective cover.
As preferred further, two sides adjacent with described opening on described protective cover are provided with side inspection hole.
As preferably, the end face of described fuel reserve tank offers oil-in, and described oil-in place is provided with pressure relief device.
As preferred further, described pressure relief device is pressure relief valve, for automatically discharging the pressure exceeding predetermined value in described fuel reserve tank.
Compared with prior art, the beneficial effect that the utility model has is: the utility model structure is simple, by fuel reserve tank is set and the liquid level of fuel reserve tank higher than the liquid level in Buchholz relay, be conducive to fuel reserve tank by fuel tank to relay fuel feeding, all the time oil is full of to make the oil pocket of relay, not only can prevent transformer from can cause because of oil starvation burning, the normal operation of Buchholz relay can also be ensured, power supply is normally run.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of broken section of oil-filled transformer of the present utility model;
Fig. 2 is the sectional structure schematic diagram that the glass tube of oil-filled transformer of the present utility model is communicated with fuel reserve tank.
In figure:
1-fuel tank; The large lid of 11-;
2-Buchholz relay; 3-fuel reserve tank;
4-pressure relief valve;
5-glass tube; 51-graduation mark;
6-protective cover; 61-side inspection hole;
7-hollow screw; 71-hollow cavity;
72-hydraulic fluid port.
Embodiment
For making those skilled in the art better understand the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 1, embodiment of the present utility model discloses a kind of oil-filled transformer, comprise fuel tank 1, the upper end of fuel tank 1 with cover 11 greatly and be connected, large lid 11 is provided with Buchholz relay 2 and fuel reserve tank 3, Buchholz relay 2 is all communicated with the oil pocket of fuel tank 1 with the oil pocket in fuel reserve tank 3, and the liquid level of fuel reserve tank 3 is higher than the liquid level in Buchholz relay 2.When the oil level in fuel tank 1 declines, fuel reserve tank 3 can to fuel feeding in fuel tank 1, and then fuel tank 1 is to the oil pocket fuel feeding of Buchholz relay 2, relay oil pocket is made to be full of oil all the time like this, not only can prevent transformer from can cause because of oil starvation burning, the normal operation of Buchholz relay 2 can also be ensured, power supply is normally run.
At the end face of fuel reserve tank 3, oil-in is set, oil-in place arranges pressure relief device, so that the pressure in fuel reserve tank 3 can be discharged in time, pressure relief device in the present embodiment preferably can the pressure relief valve 4 of release pressure automatically, and pressure relief valve 4 is made up of shell, stem stem, spring etc., is outsourcing piece, do not repeat them here its internal structure, when fuel reserve tank 3 internal pressure exceedes certain value, pressure relief valve 4 is release pressure automatically, therefore ensure that the security of operation of equipment.
The sidewall of fuel reserve tank 3 is provided with the oil level indicator be communicated with fuel reserve tank 3, the oil level of fuel reserve tank 3 can be observed by oil level indicator, supplement in time to facilitate during oil starvation.In addition, oil level indicator also possesses the function of oil storage.In order to reduce costs, simplified processing process, be convenient to observe oil level indicator, select the glass tube 5 being carved with graduation mark 51 as oil level indicator in the present embodiment, respectively to being provided with screwed hole on the sidewall of the upper/lower terminal of glass tube 5, the sidewall of fuel reserve tank 3 is provided with the tapped through hole corresponded, hollow screw 7 is through screwed hole, and extend in tapped through hole, hollow screw 7 has hollow cavity 71, hollow cavity 71 can be communicated with the oil pocket of fuel tank 1, the sidewall of hollow cavity 71 offer hydraulic fluid port 72 to be communicated with the inner chamber of hollow cavity 71 and glass tube 5.
The sidewall of fuel reserve tank 3 is welded with a protective cover 6, the side that protective cover 6 deviates from the outer wall of fuel reserve tank 3 has opening, particularly, this protective cover 6 is the elongated slot surrounded by sidewall, elongated slot is made to have two relative openends, wherein the openend of side is welded on the sidewall of fuel reserve tank 3, correspondingly, opposite side openend deviates from the outer wall of fuel reserve tank 3, glass tube 5 is positioned at elongated slot, can prevent glass tube 5 from polluting like this, and then can prevent from safeguarding not in time and causing the scale of glass tube 5 not see Chu, thus the observation of impact to glass tube 5; In addition, glass tube 5 is placed in protective cover 6, and glass tube 5 can also be prevented damaged because having an accident.
Two sides adjacent with opening on protective cover 6 are respectively arranged with side inspection hole 61, from the graduation mark 51 of multiple angle views glass tube 5, can improve convenience like this.
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model, and protection range of the present utility model is defined by the claims.Those skilled in the art can in essence of the present utility model and protection range, and make various amendment or equivalent replacement to the utility model, this amendment or equivalent replacement also should be considered as dropping in protection range of the present utility model.
Claims (7)
1. an oil-filled transformer, comprise fuel tank, described fuel tank upper end is connected with covering greatly, describedly cover greatly the Buchholz relay being provided with and being communicated with described fuel tank, it is characterized in that, describedly cover greatly the fuel reserve tank being also provided with and being communicated with described fuel tank, the liquid level of described fuel reserve tank is higher than the liquid level in described Buchholz relay.
2. oil-filled transformer according to claim 1, is characterized in that, the sidewall of described fuel reserve tank is provided with the oil level indicator be communicated with described fuel reserve tank.
3. oil-filled transformer according to claim 2, it is characterized in that, described oil level indicator comprises the glass tube being carved with graduation mark, respectively to being provided with screwed hole on the upper/lower terminal sidewall of described glass tube, pass to make hollow screw and its hollow cavity is communicated with described fuel reserve tank, the sidewall of described hollow screw offering hydraulic fluid port with the inner space with described glass tube.
4. the oil-filled transformer according to Claims 2 or 3, is characterized in that, the outer wall of described fuel reserve tank is also provided with protective cover, and the side that described protective cover deviates from the outer wall of described fuel reserve tank has opening, and described oil level indicator is positioned at described protective cover.
5. oil-filled transformer according to claim 4, is characterized in that, two sides adjacent with described opening on described protective cover are provided with side inspection hole.
6. oil-filled transformer according to claim 1, is characterized in that, the end face of described fuel reserve tank offers oil-in, and described oil-in place is provided with pressure relief device.
7. oil-filled transformer according to claim 6, is characterized in that, described pressure relief device is pressure relief valve, for automatically discharging the pressure exceeding predetermined value in described fuel reserve tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682659.XU CN204904973U (en) | 2015-09-06 | 2015-09-06 | Oil -immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682659.XU CN204904973U (en) | 2015-09-06 | 2015-09-06 | Oil -immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204904973U true CN204904973U (en) | 2015-12-23 |
Family
ID=54927132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520682659.XU Active CN204904973U (en) | 2015-09-06 | 2015-09-06 | Oil -immersed transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN204904973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840314A (en) * | 2017-02-09 | 2017-06-13 | 广东电网有限责任公司东莞供电局 | Oil level indication method and device for gas relay of power system |
| EP4270425A1 (en) * | 2022-04-25 | 2023-11-01 | Gupta, Rohit | A protection device for a liquid filled transformer |
-
2015
- 2015-09-06 CN CN201520682659.XU patent/CN204904973U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840314A (en) * | 2017-02-09 | 2017-06-13 | 广东电网有限责任公司东莞供电局 | Oil level indication method and device for gas relay of power system |
| CN106840314B (en) * | 2017-02-09 | 2019-04-19 | 广东电网有限责任公司东莞供电局 | Oil level indication method and device for gas relay of power system |
| EP4270425A1 (en) * | 2022-04-25 | 2023-11-01 | Gupta, Rohit | A protection device for a liquid filled transformer |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |