CN202488099U - Built-in breaker for oil-immersed transformer - Google Patents
Built-in breaker for oil-immersed transformer Download PDFInfo
- Publication number
- CN202488099U CN202488099U CN2012200757713U CN201220075771U CN202488099U CN 202488099 U CN202488099 U CN 202488099U CN 2012200757713 U CN2012200757713 U CN 2012200757713U CN 201220075771 U CN201220075771 U CN 201220075771U CN 202488099 U CN202488099 U CN 202488099U
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- China
- Prior art keywords
- transformer
- oil
- built
- tripping mechanism
- thermistor
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Abstract
A built-in breaker for an oil-immersed transformer comprises a mounting framework, a breaker body, an oil immersed insulation material layer, connecting cables, a tripping mechanism, a current resistor and a thermistor. The current resistor and the thermistor are serially connected on a loop made up of the connecting cables and the tripping mechanism, the current resistor and the thermistor are respectively used for detecting current value of the loop therein and temperature of an oil tank, a detection signal output end is connected with an input end of the tripping mechanism, the output of the tripping mechanism controls the on-off of the connecting cables, when the connecting cable is connected, a transformer works normally, and when the connecting cable is disconnected, the transformer stops, and output side has no voltage. Since the built-in breaker is added in the transformer, when overload and overheat happen during operation of the transformer, early warning is sent to maintenance guys, meanwhile, power supply loop is cut off and is manually reset after the maintenance guys check, and then power supply is restored, and electric accidents are effectively avoided.
Description
Technical field
The utility model belongs to the transformer technology field, relates to oil-immersed power transformer and uses built-in circuit breaker.
Background technology
At present, along with the development of country, the resident living level improves constantly; Household electrical appliance are more and more, and power load is in rapid increase, particularly in the peak of power consumption period; The frequent running overload of transformer; It is overheated that transformer occurs, and the lighter has shortened the useful life of transformer, and weight person burns transformer and causes heavy losses.This will overload occur in the changes persuing depressor running, during the overtemperature situation, the alarm device will be set, and cut off current supply circuit, avoid producing electric power accident.
Summary of the invention
The purpose of the utility model is to having transformer now when running overload, and is existing overheated easily, shortens the useful life of transformer, even burns the problem that transformer causes heavy losses, proposes a kind of oil-filled transformer and uses built-in circuit breaker.In transformer, add this circuit breaker, overload can in the transformer running, occur, during the overtemperature situation, send alarm, cut off current supply circuit simultaneously, treat that the attendant checks the back hand-reset, restores electricity to the attendant.
The technical scheme of the utility model is:
A kind of oil-filled transformer is used built-in circuit breaker; It comprises installs skeleton, breaker body, oil immersion insulation material layer, stube cable, tripping mechanism, current resistor and thermistor; Described breaker body is built in the fuel tank of transformer through skeleton is installed, and the oil immersion insulation material layer is wrapped in the outside of breaker body, and described current resistor and thermistor are serially connected on the loop that is made up of stube cable and tripping mechanism; Current resistor and thermistor are respectively applied for and detect its current value that belongs to the loop and the temperature of oil tank of transformer;, the detection signal output of current resistor and thermistor links to each other with the signal input part of tripping mechanism, the break-make of the output control connection cable of tripping mechanism; When stube cable is connected, the transformer operate as normal; When stube cable broke off, transformer quit work, the outlet side no-voltage.
The built-in circuit breaker of the utility model also comprises indicator light actuating mechanism and the indicator light that is installed in the transformer shell external; The output of described tripping mechanism links to each other with the input of indicator light actuating mechanism; The light on and off of the break-make control indicator light of indicator light actuating mechanism; When the indicator light actuating mechanism connected, indicator light was lighted, and reports to the police.
The built-in circuit breaker of the utility model also comprises operating grip bindiny mechanism and the operating grip that is installed in the transformer shell external; Described operating grip is used for manually recovering the transformer normal operating conditions; The output of operating grip links to each other with the input of operating grip bindiny mechanism; Operating grip bindiny mechanism is serially connected between tripping mechanism and the stube cable, the break-make of the output control connection cable of operating grip bindiny mechanism.
The beneficial effect of the utility model:
The oil-filled transformer of the utility model is used built-in circuit breaker, in transformer, adds this circuit breaker, overload can in the transformer running, occur; During the overtemperature situation; Send alarm to the attendant, cut off current supply circuit simultaneously, treat that the attendant checks the back hand-reset; Restore electricity, effectively avoided the generation of electric power accident.
Description of drawings
Fig. 1 is one of structural representation of the utility model.
Fig. 2 be the utility model structural representation two.
Among the figure: 1-installs skeleton, 2-oil immersion insulation material layer, 3-stube cable, 4-tripping mechanism, 5-operating grip bindiny mechanism, 6-indicator light actuating mechanism, 7-current resistor, 8-thermistor, 9-indicator light, 10-breaker body.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Like Fig. 1, shown in 2; A kind of oil-filled transformer is used built-in circuit breaker; It comprises installs skeleton 1, breaker body 10, oil immersion insulation material layer 2, stube cable 3, tripping mechanism 4, current resistor 7 and thermistor 8, and described breaker body 10 is built in the fuel tank of transformer through skeleton 1 is installed, and oil immersion insulation material layer 2 is wrapped in the outside of breaker body 10; Described current resistor 7 is serially connected on the loop that is made up of stube cable 3 and tripping mechanism 4 with thermistor 8; Current resistor 7 is respectively applied for thermistor 8 and detects its current value that belongs to the loop and the temperature of oil tank of transformer, and the detection signal output of current resistor 7 and thermistor 8 links to each other with the signal input part of tripping mechanism 4, the break-make of the output control connection cable 3 of tripping mechanism 4; When stube cable 3 is connected, the transformer operate as normal; When stube cable 3 broke off, transformer quit work, the outlet side no-voltage.
When transformer is in normal condition when operation, the tripping mechanism 4 of circuit breaker is stube cable 3 conductings, the normal output voltage of Circuit Fault on Secondary Transformer; When transformer overload or overtemperature occurred and looks like at present, current resistor 7 was sent signal with thermistor 8, tripping mechanism 4 actions; Break off between the stube cable 3, make transformer export a side and no longer include voltage output, indicator light actuating mechanism 6 is connected; At this moment instrument coil working to the indicator light power supply is contained in the external indicator light of transformer shell 9 and lights, and sends alarm signal to the attendant; After treating that the attendant deals with problems,, the transformer normal operating condition is arrived in tripping mechanism 4 hand-resets through being contained in the operating grip 5 on the transformer housing; At this moment indicator light actuating mechanism 6 breaks off, and indicator light 9 extinguishes.
The utility model does not relate to all identical with the prior art prior art that maybe can adopt of part to be realized.
Claims (3)
1. an oil-filled transformer is used built-in circuit breaker; It is characterized in that it comprises installation skeleton (1), breaker body (10), oil immersion insulation material layer (2), stube cable (3), tripping mechanism (4), current resistor (7) and thermistor (8); Described breaker body (10) is built in the fuel tank of transformer through skeleton (1) is installed; Oil immersion insulation material layer (2) is wrapped in the outside of breaker body (10); Described current resistor (7) and thermistor (8) are serially connected on the loop that is made up of stube cable (3) and tripping mechanism (4); Current resistor (7) and thermistor (8) are respectively applied for and detect its current value that belongs to the loop and the temperature of oil tank of transformer, and the detection signal output of current resistor (7) and thermistor (8) links to each other with the signal input part of tripping mechanism (4), the break-make of the output control connection cable (3) of tripping mechanism (4); When stube cable (3) is connected, the transformer operate as normal; When stube cable (3) broke off, transformer quit work, the outlet side no-voltage.
2. oil-filled transformer according to claim 1 is used built-in circuit breaker; It is characterized in that described built-in circuit breaker also comprises indicator light actuating mechanism (6) and is installed in the indicator light (9) of transformer shell external; The output of described tripping mechanism (4) links to each other with the input of indicator light actuating mechanism (6), and the light on and off of the break-make control indicator light (9) of indicator light actuating mechanism (6) are when indicator light actuating mechanism (6) connects; Indicator light (9) is lighted, and reports to the police.
3. oil-filled transformer according to claim 1 is used built-in circuit breaker; It is characterized in that described built-in circuit breaker also comprises operating grip bindiny mechanism (5) and is installed in the operating grip of transformer shell external; Described operating grip is used for manually recovering the transformer normal operating conditions; The output of operating grip links to each other with the input of operating grip bindiny mechanism (5); Operating grip bindiny mechanism (5) is serially connected between tripping mechanism (4) and the stube cable (3), the break-make of the output control connection cable (3) of operating grip bindiny mechanism (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200757713U CN202488099U (en) | 2012-03-02 | 2012-03-02 | Built-in breaker for oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200757713U CN202488099U (en) | 2012-03-02 | 2012-03-02 | Built-in breaker for oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202488099U true CN202488099U (en) | 2012-10-10 |
Family
ID=46962490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200757713U Expired - Lifetime CN202488099U (en) | 2012-03-02 | 2012-03-02 | Built-in breaker for oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202488099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593792A (en) * | 2012-03-02 | 2012-07-18 | 常州特种变压器有限公司 | Built-in circuit breaker for oil-immersed transformer |
-
2012
- 2012-03-02 CN CN2012200757713U patent/CN202488099U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593792A (en) * | 2012-03-02 | 2012-07-18 | 常州特种变压器有限公司 | Built-in circuit breaker for oil-immersed transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |