CN102593792A - Built-in circuit breaker for oil-immersed transformer - Google Patents
Built-in circuit breaker for oil-immersed transformer Download PDFInfo
- Publication number
- CN102593792A CN102593792A CN2012100540640A CN201210054064A CN102593792A CN 102593792 A CN102593792 A CN 102593792A CN 2012100540640 A CN2012100540640 A CN 2012100540640A CN 201210054064 A CN201210054064 A CN 201210054064A CN 102593792 A CN102593792 A CN 102593792A
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- transformer
- circuit breaker
- oil
- built
- tripping mechanism
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Abstract
The invention discloses a built-in circuit breaker for an oil-immersed transformer. The built-in circuit breaker comprises an installation frame, a circuit breaker body, an oil-immersed insulation layer, a connection cable, a tripping mechanism, a current resistor and a thermal resistor; the current resistor and the thermal resistor are connected in series on a loop composed of the connection cable and the tripping mechanism; the current resistor and the thermal resistor are respectively used for detecting a current value and the temperature of an oil box of the loop; a detection signal output end of the current resistor and a detection signal output end of the thermal resistor are connected with an input end of the tripping mechanism; the connection and disconnection of the connection cable is controlled by an output of the tripping mechanism; the transformer works normally when the connection cable is connected; and the transformer stops working and no voltage is at an output side when the connection cable is disconnected. By adding the circuit breaker disclosed by the invention in the transformer, an alarm is sent to maintenance personnel and a power supply loop is cut off when the situations of overload and overheat occur in the running process of the transformer, so that the maintenance personnel can reset manually and restore the power supply after the examination, and therefore, electric power accidents are effectively avoided.
Description
Technical field
The invention belongs to the transformer technology field, relate to oil-immersed power transformer and use 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.
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Summary of the invention
The objective of the invention is to existing transformer when running overload, existing overheated easily, shorten the useful life of transformer, even burn the problem that transformer causes heavy losses, propose a kind of oil-filled transformer and use 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.
Technical scheme of the present invention 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.
Built-in circuit breaker of the present invention 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.
Built-in circuit breaker of the present invention 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.
Beneficial effect of the present invention:
Oil-filled transformer of the present invention 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 present invention.
Fig. 2 is two of a structural representation of the present invention.
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 present invention 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 present invention does not relate to all identical with the prior art prior art that maybe can adopt of part and realizes.
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 |
|---|---|---|---|
| CN2012100540640A CN102593792A (en) | 2012-03-02 | 2012-03-02 | Built-in circuit breaker for oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100540640A CN102593792A (en) | 2012-03-02 | 2012-03-02 | Built-in circuit breaker for oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102593792A true CN102593792A (en) | 2012-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100540640A Pending CN102593792A (en) | 2012-03-02 | 2012-03-02 | Built-in circuit breaker for oil-immersed transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN102593792A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01136524A (en) * | 1987-11-20 | 1989-05-29 | Toshiba Corp | Motor controller |
| CN2420770Y (en) * | 2000-05-20 | 2001-02-21 | 赵云峰 | Multifunction transformer |
| CN1464608A (en) * | 2002-06-10 | 2003-12-31 | 罗三根 | Overtemperature protective circuit breaker |
| CN2884639Y (en) * | 2005-11-25 | 2007-03-28 | 神讯电脑(昆山)有限公司 | Overheat protection circuit |
| CN201054494Y (en) * | 2007-06-28 | 2008-04-30 | 东营市科瑞达工贸有限责任公司 | Transformer low-voltage power supply and protection integrated device |
| CN201215890Y (en) * | 2008-01-01 | 2009-04-01 | 刘振安 | Anti-burning automatic protection device for low-voltage distribution transformer |
| CN201247748Y (en) * | 2008-06-27 | 2009-05-27 | 郑建强 | Miniature circuit breaker with thermal overload alarm device |
| CN201278008Y (en) * | 2008-10-23 | 2009-07-22 | 山东达驰电气有限公司 | Transformer integrated monitor |
| CN201690218U (en) * | 2010-03-10 | 2010-12-29 | 李永林 | Transformer running monitoring device |
| CN201854090U (en) * | 2010-11-23 | 2011-06-01 | 广州德昊电子科技有限公司 | Intelligent transformer |
| CN202488099U (en) * | 2012-03-02 | 2012-10-10 | 常州特种变压器有限公司 | Built-in breaker for oil-immersed transformer |
-
2012
- 2012-03-02 CN CN2012100540640A patent/CN102593792A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01136524A (en) * | 1987-11-20 | 1989-05-29 | Toshiba Corp | Motor controller |
| CN2420770Y (en) * | 2000-05-20 | 2001-02-21 | 赵云峰 | Multifunction transformer |
| CN1464608A (en) * | 2002-06-10 | 2003-12-31 | 罗三根 | Overtemperature protective circuit breaker |
| CN2884639Y (en) * | 2005-11-25 | 2007-03-28 | 神讯电脑(昆山)有限公司 | Overheat protection circuit |
| CN201054494Y (en) * | 2007-06-28 | 2008-04-30 | 东营市科瑞达工贸有限责任公司 | Transformer low-voltage power supply and protection integrated device |
| CN201215890Y (en) * | 2008-01-01 | 2009-04-01 | 刘振安 | Anti-burning automatic protection device for low-voltage distribution transformer |
| CN201247748Y (en) * | 2008-06-27 | 2009-05-27 | 郑建强 | Miniature circuit breaker with thermal overload alarm device |
| CN201278008Y (en) * | 2008-10-23 | 2009-07-22 | 山东达驰电气有限公司 | Transformer integrated monitor |
| CN201690218U (en) * | 2010-03-10 | 2010-12-29 | 李永林 | Transformer running monitoring device |
| CN201854090U (en) * | 2010-11-23 | 2011-06-01 | 广州德昊电子科技有限公司 | Intelligent transformer |
| CN202488099U (en) * | 2012-03-02 | 2012-10-10 | 常州特种变压器有限公司 | Built-in breaker for oil-immersed transformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |