CN203706794U - On-line oil supplementing device of on-load tap-changer - Google Patents
On-line oil supplementing device of on-load tap-changer Download PDFInfo
- Publication number
- CN203706794U CN203706794U CN201420053454.0U CN201420053454U CN203706794U CN 203706794 U CN203706794 U CN 203706794U CN 201420053454 U CN201420053454 U CN 201420053454U CN 203706794 U CN203706794 U CN 203706794U
- Authority
- CN
- China
- Prior art keywords
- oil
- transformer
- load tap
- changer
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model provides an on-line oil supplementing device of an on-load tap-changer. The on-line oil supplementing device of the on-load tap-changer comprises a transformer, the on-load tap-changer connected with a regulating winding of the transformer, a transformer oil conservator supplying oil to the transformer and an on-load tap-changer oil conservator supplying oil to the on-load tap-changer. The transformer oil conservator is higher than the on-load tap-changer oil conservator. An oil filling pipe of the transformer oil conservator is provided with a first valve. An oil filling pipe of the on-load tap-changer oil conservator is provided with a second valve. A first three-way valve and a second three-way valve are arranged on the oil filling pipes of the transformer oil conservator and the on-load tap-changer oil conservator respectively, and the two three-way valves are communicated with each other through an oil supplementing pipeline. A third valve is arranged on the oil supplementing pipeline. In this way, a bridge is established between the transformer oil conservator and the on-load tap-changer oil conservator, insulating oil of the on-load tap-changer is supplemented through the oil level difference or the oil pressure difference between the transformer oil conservator and the on-load tap-changer oil conservator, and therefore the transformer and the on-load tap-changer can safely operate.
Description
Technical field
The utility model relates to a kind of online recharging oil device of on load tap changer.
Background technology
On load tap changer is a kind ofly to provide the switching device of constant voltage when the load variations for transformer.Its basic principle is exactly in the situation that guaranteeing not interrupt load electric current, realizes the switching between tap in Transformer Winding, thereby changes the number of turn of winding, i.e. the voltage ratio of transformer finally realizes the object of pressure regulation.
After transformer operation, on load tap changer, in dynamic operation state, because on load tap changer is in the time switching gear, has electric arc, the generation of transition resistance fever phenomenon.In on load tap changer, insulating oil needs arc extinguishing and heat radiation, and oil quality deterioration speed is very fast.Therefore need to do the test of on load tap changer oil sample, check oil quality deterioration degree, judges whether on load tap changer can normally move.
Withstand voltage test is done in conventional loaded tap switch oil sample test conventionally, to judge that can the dielectric strength of insulating oil ensure the electric insulation of on-load shunting switch, avoids electric accident.Along with progressively popularizing of non-maintaining vacuum on-load operation switch, the test of loaded tap switch oil sample is even more important.
The test of loaded tap switch oil sample is recovered the oil, and must first discharge the dead oil in loaded switch flowline, just can get the true oil sample of load tap changer oil chamber and test.In prior art transformer and on load tap changer structural representation as shown in Figure 1, cannot carry out online repairing on load tap changer, and because the required insulating oil general quantity of the normal work of on load tap changer is fewer, after loaded tap switch oil sample collection for several times, can cause loaded tap switch oil position to lose oil, affect on load tap changer and normally move.
Utility model content
The utility model is carried a kind of online recharging oil device of on load tap changer, between installation for transformer and loaded tap switch oil pillow, set up bridge, utilize that the oil level of installation for transformer and loaded tap switch oil pillow is poor or oil pressure is poor, be supplemented with the insulating oil of on-load shunting switch, make transformer and on load tap changer safe operation.
The online recharging oil device of described on load tap changer comprises transformer and the on load tap changer being connected with transformer regulating winding; To the installation for transformer of transformer fuel feeding, and rest the head on to the loaded tap switch oil of on load tap changer fuel feeding,
Described installation for transformer arranges higher than loaded tap switch oil pillow position;
On the oil filling pipeline of installation for transformer, be provided with the first valve;
On the oil filling pipeline of loaded tap switch oil pillow, be provided with the second valve;
On the oil filling pipeline of installation for transformer and loaded tap switch oil pillow, the first triple valve and the second triple valve are set respectively, described two triple valves, by repairing pipeline connection, are provided with the 3rd valve on repairing pipeline.
By upper, between installation for transformer and loaded tap switch oil pillow, set up bridge, utilize that the oil level of installation for transformer and loaded tap switch oil pillow is poor or oil pressure is poor, be supplemented with the insulating oil of on-load shunting switch, make transformer and on load tap changer safe operation.
Optionally, in described installation for transformer and loaded tap switch oil pillow, be respectively arranged with oil level gauge.
By upper, convenient operation personnel observe the trapped fuel situation in installation for transformer and loaded tap switch oil pillow by oil level gauge, are easy to timely repairing.
Optionally, the upper and lower limit position of the oil level in loaded tap switch oil pillow arranges electric loop contact;
Described first, second, third valve is electronic valve, is connected respectively with described electric loop contact.
By upper, in the time that oil level is not enough, electric loop contact just sends signal, and electronic valve basis signal opens and closes, to realize automatic repairing.
Optionally, between described electric loop contact and the 3rd valve, be also connected in series with delay switch.
By upper, guarantee after the valve in repairing pipeline, in first, second valve opening and closing, to guarantee pipeline safety.
Optionally, the height of described repairing pipeline is corresponding with transformer bottom position.
By upper, personnel's operation is convenient to operation.
Optionally, also comprise: rest the head on installation for transformer and loaded tap switch oil the dehydrating breather being connected respectively.
By upper, avoid the insulating oil in conservator contact atmosphere and cause making moist.
Optionally, also comprise: the relay that is respectively used to control transformer and on load tap changer start and stop.
By upper, in the time that transformer or on load tap changer break down, can automatically close.
Accompanying drawing explanation
Fig. 1 is transformer and on load tap changer structural representation;
Fig. 2 is the structural representation of the online recharging oil device of on load tap changer.
Embodiment
Existing installation for transformer adopts conventional conservator or the large class of bellows conservator two conventionally, and loaded tap switch oil pillow adopts conventional conservator.Wherein, if the conventional conservator of transformer adopting, it is high that oil pillow oil level can be rested the head on oil level than loaded tap switch oil; If transformer adopting bellows conservator, it is large that conservator oil pressure can be rested the head on oil pressure than loaded tap switch oil.Object by upper design is: once the conservator seepage of on load tap changer, the oil of loaded tap switch oil pillow cannot penetrate in transformer body, to avoid polluting transformer body oil.
The normal required insulation oil mass of working of on load tap changer is fewer, is generally 150 kilograms to 300 kilograms, and the storage volume of its conservator is 20 to 30 kilograms.Although the amount that the test of loaded tap switch oil sample is recovered the oil is little, need to, the dead oil emptying in loaded switch flowline, just can get the true oil sample of load tap changer oil chamber.Single test probably need to be emitted 3 to 5 kilograms of insulating oils, larger on the impact of loaded tap switch oil pillow oil level.And transformer body inside needs the amount of insulating oil very large, take 35KV electric pressure as example, its insulating oil use amount exceedes 10 tons, and the storage volume of installation for transformer is 1 to 2 ton, huge with the insulation oil mass gap of on load tap changer.Thus, use the insulating oil of transformer body inside to be supplemented with the insulating oil of on-load shunting switch feasible theoretically.
Based on above-mentioned reasoning, the utility model provides a kind of online recharging oil device of on load tap changer, pass through architecture advances, make can be supplemented to online on load tap changer by the insulating oil in transformer body, reduce the oil level causing due to oil sample test oil recovery and lose oil, on load tap changer is normally moved.
If Fig. 2 is the structural representation of the online recharging oil device of the utility model on load tap changer, comprise the transformer identical with existing structure 10, on load tap changer 20.On load tap changer 20 is connected with the pressure regulation winding of transformer 10.
Also comprise with transformer 10 and being electrically connected, for the transformer relay 13 of control transformer start and stop; Be connected with transformer 10, for storing and to the installation for transformer 11 of transformer 10 fuel feeding; And the transformer pouring oil pipe line 14 and the moisture absorber of transformer 12 that are connected with installation for transformer 11 respectively.Described transformer pouring oil pipe line 14 is provided with the first valve 15 with the position that is communicated with of installation for transformer 11.
In addition, also comprise with on load tap changer 20 and being connected, for controlling the on load tap changer relay 23 of on load tap changer 20 start and stop; Be connected with on load tap changer 20, for storing and resting the head on 21 to the loaded tap switch oil of on load tap changer 20 fuel feeding; And rest the head on the 21 on load tap changer oil filling pipeline 24 being connected and on load tap changer dehydrating breathers 22 with loaded tap switch oil respectively.Described on load tap changer oil filling pipeline 24 is provided with the second valve 25 with the position that is communicated with of loaded tap switch oil pillow 21.
Wherein, transformer relay 13 and on load tap changer relay 23 are respectively used to protect transformer 10 and on load tap changer 20, and in the time that transformer 10 or on load tap changer 20 break down, above-mentioned relay cuts off automatically, and Accident prevention further expands.
In addition, the effect of moisture absorber of transformer 12 and on load tap changer dehydrating breather 22 is to prevent that the insulating oil in transformer and on load tap changer from making moist.Optionally, above-mentioned dehydrating breather adopts silica gel filter to realize, and silica gel filter can avoid the conservator of on load tap changer and transformer directly contact with atmosphere and cause making moist.
Further, also include warning device (not shown), be connected with above-mentioned transformer relay 13, on load tap changer relay 23, moisture absorber of transformer 12 and on load tap changer dehydrating breather 22 respectively.Structure and the annexation of said apparatus are same as the prior art, therefore repeat no more.
Be provided with respectively the first triple valve 32 and the second triple valve 33 in the pouring orifice position of described transformer pouring oil pipe line 14 and on load tap changer oil filling pipeline 24.Between described the first triple valve 32 and the second triple valve 33, be provided with repairing pipeline 30, in addition, be provided with the 3rd valve 31 in the centre position of described repairing pipeline.
Described repairing pipeline vertical height position is positioned at transformer bottom, and personnel's operation is thus convenient to operation.
In the present embodiment, the set vertical height of described installation for transformer 11 is rested the head on 21 set vertical heights higher than loaded tap switch oil, thus, when in hereinafter described repairing process, because the vertical drop between two conservators causes pressure reduction, the insulating oil in installation for transformer 11 is filled in loaded tap switch oil pillow 21 smoothly.
Further, in described loaded tap switch oil pillow 21, be also provided with oil level gauge 26, for detection of the oil mass in loaded tap switch oil pillow 21.In like manner, in installation for transformer 11, be provided with oil level gauge (not shown).
Figure 2 shows that the ideal scheme schematic diagram of the online recharging oil device of on load tap changer, in practical application, if loaded tap switch oil pillow does not have oil fuel tube, scene can install conservator oil fuel tube additional or uses on load tap changer oil fuel tube temporarily.
In the course of work of online recharging oil device, first operating personnel need observe the oil mass in loaded tap switch oil pillow 21 by oil level gauge 26, during lower than default lower limit, first control and open first, second valve, after certain hour, open the 3rd valve 31.Due to the pressure reduction that the vertical drop between installation for transformer 11 and loaded tap switch oil pillow 21 causes, the insulating oil in installation for transformer 11 is filled in loaded tap switch oil pillow 21 smoothly.When operating personnel need observe by oil level gauge 26 oil mass in loaded tap switch oil pillow 21 when normal, first control and close first, second valve, after certain hour, close the 3rd valve 31, realize the online repairing of on load tap changer.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, for example, upper and lower limit position at the oil level of loaded tap switch oil pillow 21 arranges electric loop contact, and described first, second, and third valve is all set to electronic valve, respectively at above-mentioned upper and lower limit position, electric loop contact electrical connection is set, when the oil level of loaded tap switch oil pillow 21 is during lower than set lower position, thereby receiving a low level signal, opens on first, second, and third valve.
In addition, between described electric loop contact and the 3rd valve 31, be also connected in series a delay switch, thereby can control the 3rd valve 31 delayed start-ups.
Further, when the oil level of loaded tap switch oil pillow 21 is during higher than set upper limit position, closed thereby first, second, and third valve receives a high level signal, realize on-line automatic repairing.
Above, the online repairing scheme of on load tap changer is to set up a bridge between installation for transformer 11 and loaded tap switch oil pillow 21, utilize that the oil level of installation for transformer 11 and loaded tap switch oil pillow 21 is poor or oil pressure is poor, be supplemented with the insulating oil of on-load shunting switch 20, make transformer 10 and on load tap changer 20 safe operations.The technical program is simple and practical, makes operating personnel have enough safe distances in the time carrying out repairing operation, can guarantee safety, for universal use provides real basis.
All within spirit of the present utility model and principle in a word, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (7)
1. an online recharging oil device on load tap changer, comprises transformer and the on load tap changer being connected with transformer regulating winding; To the installation for transformer of transformer fuel feeding, and rest the head on to the loaded tap switch oil of on load tap changer fuel feeding, it is characterized in that,
Described installation for transformer arranges higher than loaded tap switch oil pillow position;
On the oil filling pipeline of installation for transformer, be provided with the first valve;
On the oil filling pipeline of loaded tap switch oil pillow, be provided with the second valve;
On the oil filling pipeline of installation for transformer and loaded tap switch oil pillow, the first triple valve and the second triple valve are set respectively, described two triple valves, by repairing pipeline connection, are provided with the 3rd valve on repairing pipeline.
2. the online recharging oil device of on load tap changer according to claim 1, is characterized in that, in described installation for transformer and loaded tap switch oil pillow, is respectively arranged with oil level gauge.
3. the online recharging oil device of on load tap changer according to claim 1, is characterized in that, the upper and lower limit position of the oil level in loaded tap switch oil pillow arranges electric loop contact;
Described first, second, third valve is electronic valve, is connected respectively with described electric loop contact.
4. the online recharging oil device of on load tap changer according to claim 3, is characterized in that, between described electric loop contact and the 3rd valve, is also connected in series with delay switch.
5. the online recharging oil device of on load tap changer according to claim 1, is characterized in that, the height of described repairing pipeline is corresponding with transformer bottom position.
6. the online recharging oil device of on load tap changer according to claim 1, is characterized in that, also comprises: rest the head on installation for transformer and loaded tap switch oil the dehydrating breather being connected respectively.
7. the online recharging oil device of on load tap changer according to claim 1, is characterized in that, also comprises: the relay that is respectively used to control transformer and on load tap changer start and stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053454.0U CN203706794U (en) | 2014-01-27 | 2014-01-27 | On-line oil supplementing device of on-load tap-changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053454.0U CN203706794U (en) | 2014-01-27 | 2014-01-27 | On-line oil supplementing device of on-load tap-changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706794U true CN203706794U (en) | 2014-07-09 |
Family
ID=51057197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420053454.0U Expired - Fee Related CN203706794U (en) | 2014-01-27 | 2014-01-27 | On-line oil supplementing device of on-load tap-changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706794U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269248A (en) * | 2014-10-17 | 2015-01-07 | 国家电网公司 | Interconnection exchange respirator device |
| CN104269247A (en) * | 2014-10-17 | 2015-01-07 | 国家电网公司 | Parallel moisture absorber |
| CN106024307A (en) * | 2016-05-18 | 2016-10-12 | 国家电网公司 | Charged oil compensating method for on-load tap changer oil conservator of main transformer |
| CN112086270A (en) * | 2020-09-01 | 2020-12-15 | 广东电网有限责任公司佛山供电局 | Differential pressure charged oil supplementing method and tool for on-load switch of oil-immersed transformer |
-
2014
- 2014-01-27 CN CN201420053454.0U patent/CN203706794U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269248A (en) * | 2014-10-17 | 2015-01-07 | 国家电网公司 | Interconnection exchange respirator device |
| CN104269247A (en) * | 2014-10-17 | 2015-01-07 | 国家电网公司 | Parallel moisture absorber |
| CN104269247B (en) * | 2014-10-17 | 2016-06-29 | 国家电网公司 | A kind of parallel moisture absorber device |
| CN104269248B (en) * | 2014-10-17 | 2016-06-29 | 国家电网公司 | A kind of interconnecting and switching formula respirator apparatus |
| CN106024307A (en) * | 2016-05-18 | 2016-10-12 | 国家电网公司 | Charged oil compensating method for on-load tap changer oil conservator of main transformer |
| CN112086270A (en) * | 2020-09-01 | 2020-12-15 | 广东电网有限责任公司佛山供电局 | Differential pressure charged oil supplementing method and tool for on-load switch of oil-immersed transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203706794U (en) | On-line oil supplementing device of on-load tap-changer | |
| CN103779132B (en) | A kind of SF 6 high-voltage circuit breaker for cold district | |
| CN201658766U (en) | Oil-discharging and nitrogen-injecting fire extinguishing apparatus of transformer | |
| CN106100356A (en) | A kind of distribution transformer on-load voltage regulation system based on reverse parallel connection IGCT | |
| CN203363316U (en) | Decompression valve used in serious accident of nuclear power station | |
| CN104851578A (en) | On-load voltage regulating transformer device and method for performing on-load voltage regulation | |
| CN206516572U (en) | A kind of relay for being easily installed and dismantling | |
| CN212007636U (en) | SF6 density relay inspection gas circuit connecting device | |
| CN204144018U (en) | The automatic oil change system of oil-filled transformer | |
| CN103742782B (en) | A kind of electric power charged intelligent making-up air device of SF6 mutual inductor and supplementing method for air thereof | |
| CN202650948U (en) | SF6 circuit breaker gas automatic compensation device | |
| CN212694965U (en) | Transformer conservator initiative oil extraction system | |
| CN102226961A (en) | Electrically-charged oil-change device in transformer switch room and application method thereof | |
| CN204447042U (en) | A kind of transformer and on-load voltage regulating switch one oil-drainage nitrogen-filling fire-extinguishing | |
| CN203746612U (en) | Vacuum oil injection machine with automatic oil level control function | |
| CN201853561U (en) | Vacuum oil supply machine | |
| CN201868884U (en) | Complete device special for reactive compensation of electrified railway | |
| CN203491178U (en) | High-voltage breaker and SF6 supplement device thereof | |
| CN109741910B (en) | Power transformer, mobile substation and overhauling method | |
| CN203659588U (en) | Vacuum oil filling machine with thermostat | |
| CN207637595U (en) | A kind of modified amorphous alloy transformer | |
| CN105845374B (en) | Transformer station portable oil filter oil strain and recharging oil device | |
| CN206961662U (en) | Loaded capacity-regulated transformer | |
| CN201285730Y (en) | Apparatus for safely compensating gas to SF6 circuit breaker in operation | |
| CN205230787U (en) | Change of current becomes capsule equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20170127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |