CN1065365C - Transformer switch combination unit - Google Patents
Transformer switch combination unit Download PDFInfo
- Publication number
- CN1065365C CN1065365C CN97118939A CN97118939A CN1065365C CN 1065365 C CN1065365 C CN 1065365C CN 97118939 A CN97118939 A CN 97118939A CN 97118939 A CN97118939 A CN 97118939A CN 1065365 C CN1065365 C CN 1065365C
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- China
- Prior art keywords
- transformer
- low
- circuit breaker
- combination unit
- voltage circuit
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- 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
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- Protection Of Transformers (AREA)
- Housings And Mounting Of Transformers (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates to a combination device for a transformer switch, which is one part of a terminal transform device in a power supply network. The present invention is mainly composed of a transformer shell body, a transformer body and a low-voltage circuit breaker, wherein the transformer body is positioned in the transformer shell body. The low-voltage output terminal of the transformer body is connected with the low-voltage circuit breaker in series. A three-phase low-voltage conveying circuits at the back of the low-voltage circuit breaker can be respectively connected with a bimetallic strip sensor in series. The present invention has the advantages of simple structure, safe and reliable use, strong protection performance and easy maintenance, and the present invention can be widely used for power distribution systems of various places of industrial parks, resident districts, business centers, high-rise buildings, etc.
Description
The present invention is a kind of transformer switch combination unit that is used for electric network terminal, belongs to electric power power transformation controller switching equipment.
At present, China's converting equipment commonly used in the electrical network conveying system mainly contains two kinds of forms, and a kind of is with high voltage switchgear, low voltage switchgear and three independent distribution systems of partly forming of transformer; Another kind is that above-mentioned three is combined in the Big Iron, and this combination is called box-type substation.The low pressure output of these two kinds of converting equipments directly and the user link, when overload or fault take place low-pressure side, cause that easily converting equipment breaks down like this, because converting equipment is complicated, maintenance time is longer, so converting equipment can directly influence user's work and life after breaking down; If transformer self breaks down, can not be in time and user's power consumption equipment be separated, can cause the damage of power consumption equipment even burn.
The objective of the invention is to design a kind of transformer switch combination unit, it is simple in structure, and self-protection is strong, and is safe and reliable during use, and easy to maintenance.
The designed transformer switch combination unit of the present invention is made up of transformer housing, transformer body, transformer body is positioned at the transformer housing, low-voltage output at transformer body is in series with low-voltage circuit breaker, and is in series with the bimetal leaf transducer in the low-voltage output circuit behind the low-voltage circuit breaker.
The another kind of transformer switch combination unit that the present invention is designed, transformer are dry-type transformer, are in series with low-voltage circuit breaker at the low-voltage output of transformer body, and are in series with the bimetal leaf transducer in the low-voltage output circuit behind the low-voltage circuit breaker.
Low-voltage circuit breaker in the designed transformer switch combination unit of the present invention is positioned in the transformer housing.
In the designed transformer switch combination unit of the present invention, have warning device, to play the effect of warning.
The designed transformer switch combination unit of the present invention is oil immersed type or fills the transformer of sulfur hexafluoride gas formula.
Low-voltage circuit breaker in the designed transformer switch combination unit of the present invention also can be positioned on the support of transformer shell external body or dry-type transformer.
The low-voltage circuit breaker of the transformer switch combination unit that the present invention is designed has the protection housing, in the protection housing for oil immersed type or fill sulfur hexafluoride gas or vacuum.
The designed transformer switch combination unit of the present invention is when using, if transformer generation turn-to-turn itself or interlayer fault and when producing big electric current, at first low-voltage circuit breaker action, cut off load, make transformer be in Light Condition, in order to avoid cause low-pressure side user's power consumption equipment damage and burning of transformer.When combined transformer breaks down; temperature in the transformer housing can rise; after rising to the uniform temperature value; bimetal leaf transducer action causing low-voltage circuit breaker action cutoff low load; make transformer be in Light Condition; thereby the protection transformer, expansion, extension after trying to avert accidents and having an accident.When if overload or fault take place the outer low pressure side, low-voltage circuit breaker cooperates branch's controlling organization, and the fault or the overload of low-pressure side are separated with transformer, prevents that outside accident from extending to transformer inside, thereby plays a protective role.
The advantage of the transformer switch combination unit that the present invention is designed is:
1. safe and reliable, protectiveness is strong, can effectively prevent the generation of various damages or burnout failure, prolongs the useful life of transformer.
2. have warning function, can in time find fault, take measures, prevent major accident.
3. easy to maintenance.If the fault that causes of overload, after fault was got rid of, the joystick by low-voltage circuit breaker can restore electricity.If the fault of transformer itself, replaceable transformer and other element can not damage.
The designed transformer switch combination unit of the present invention is mainly used in the distribution system in various places such as industrial park, residential quarter, commercial center and skyscraper.
Fig. 1 is the structure chart of the designed transformer switch combination unit of the present invention.
Fig. 2 is the circuit diagram of Fig. 1.
Fig. 3 is the structure chart of the designed another kind of transformer switch combination unit of the present invention.
In conjunction with specific embodiments the execution mode and the effect of the designed transformer switch combination unit of the present invention is described further with reference to the accompanying drawings below.
Embodiment 1
Transformer switch combination unit as shown in Figure 1, wherein A figure is a front view, B figure is an end view, form by transformer housing 1, transformer body 2, transformer body 2 is positioned at transformer housing 1, dielectric in the transformer housing 1 is an oil, and low-voltage circuit breaker 3 and bimetal leaf transducer 4 are placed in the transformer housing 1, and the outside of transformer housing 1 is equipped with the joystick 6 of indicator light 5 and low-voltage circuit breaker.The circuit diagram of transformer switch combination unit as shown in Figure 2, the low-voltage output of transformer body 2 is in series with low-voltage circuit breaker 3, is in series with bimetal leaf transducer 4 respectively in the three-phase low-pressure delivery circuit at low-voltage circuit breaker 3 rear portions.Have warning circuit at low-pressure end, constitute by induction coil 7, contact switch 8 and indicator light 5 series connection.When transformer switch combination unit is worked; when if transformer body 2 is short-circuited; low-voltage circuit breaker 3 disconnects; cut off load; make transformer be in Light Condition, while contact switch 8 closures, indicator light 5 is bright; play the warning effect, can protect power consumption equipment effectively and prevent that overcurrent from burning transformer.If the oil temperature in the transformer is too high, also can cause low-voltage circuit breaker 3 and disconnect, preventing that transformer is overheated burns.Also will move if overload low-voltage circuit breaker 3 takes place, and make transformer be in Light Condition, with the protection transformer.In when maintenance, the continuous element of transformer switch combination unit outside all can be motionless, and after changing transformer body 2 or fixing a breakdown, the joystick 6 of operation low-voltage circuit breaker can make distribution system work on, maintenance and easy to use, safe.
Another kind of transformer switch combination unit as shown in Figure 3; similar substantially to embodiment 1, its circuit connects identical with embodiment 1, and different is the outside that low-voltage circuit breaker 3 is positioned over transformer housing 1; its outside is covered with containment vessel body 10, and the medium in the protection housing 10 is an oil.This transformer switch combination unit is separated transformer body 2 and low-voltage circuit breaker 3, more help installing and maintenance, and this structure is applied widely, applicable to dry type, oil immersed type or fill multiple transformers such as sulfur hexafluoride gas formula, help transformation, the renewal of old controller switching equipment.
Claims (7)
1. transformer switch combination unit, form by transformer housing, transformer body, transformer body is positioned at the transformer housing, it is characterized in that: the low-voltage output at transformer body is in series with low-voltage circuit breaker, and is in series with the bimetal leaf transducer in the low-voltage output circuit behind the low-voltage circuit breaker.
2. transformer switch combination unit, transformer is a dry-type transformer, it is characterized in that: the low-voltage output at transformer body is in series with low-voltage circuit breaker, and is in series with the bimetal leaf transducer in the low-voltage output circuit behind the low-voltage circuit breaker.
3. transformer switch combination unit according to claim 1, its feature also is: low-voltage circuit breaker is positioned in the transformer housing.
4. transformer switch combination unit according to claim 1 and 2, its feature also is: have warning device.
5. transformer switch combination unit according to claim 1, its feature also is: in the transformer housing for oil immersed type or fill the transformer of sulfur hexafluoride gas formula.
6. transformer switch combination unit according to claim 1 and 2, its feature also is: low-voltage circuit breaker also can be positioned on the support of transformer shell external body or dry-type transformer.
7. transformer switch combination unit according to claim 6, its feature also is: low-voltage circuit breaker has the protection housing, in the protection housing for oil immersed type or fill sulfur hexafluoride gas or vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97118939A CN1065365C (en) | 1997-10-05 | 1997-10-05 | Transformer switch combination unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97118939A CN1065365C (en) | 1997-10-05 | 1997-10-05 | Transformer switch combination unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1191404A CN1191404A (en) | 1998-08-26 |
| CN1065365C true CN1065365C (en) | 2001-05-02 |
Family
ID=5175078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97118939A Expired - Fee Related CN1065365C (en) | 1997-10-05 | 1997-10-05 | Transformer switch combination unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1065365C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205267U (en) * | 1985-12-07 | 1986-08-13 | 北京煤炭工业学校矿用设备厂 | Integrated protector for lighting and signal in 127v for under coal mine |
-
1997
- 1997-10-05 CN CN97118939A patent/CN1065365C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205267U (en) * | 1985-12-07 | 1986-08-13 | 北京煤炭工业学校矿用设备厂 | Integrated protector for lighting and signal in 127v for under coal mine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1191404A (en) | 1998-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 12 of the detailed rules for the implementation of the patent law: 97118939 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 97227899 utility model patent to be given up, and in the 17 volume of the 18 issue of the new type of communique on the patent right to abandon the announcement. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |