CN102931638A - Transformer temperature protection and alarm device - Google Patents
Transformer temperature protection and alarm device Download PDFInfo
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- CN102931638A CN102931638A CN2012104107742A CN201210410774A CN102931638A CN 102931638 A CN102931638 A CN 102931638A CN 2012104107742 A CN2012104107742 A CN 2012104107742A CN 201210410774 A CN201210410774 A CN 201210410774A CN 102931638 A CN102931638 A CN 102931638A
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- transformer
- base plate
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- thermostat
- warning device
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Abstract
The invention relates to a transformer temperature protection and alarm device, wherein lead wires are connected to normally-open contacts on a temperature controller, pass through threading holes in a metal baseplate and are respectively connected with an alarm and a shunt trip coil on a transformer outlet protection switch. When the temperature of the transformer exceeds the temperature set by the temperature controller, the normally-open contacts of the temperature controller are closed to control a low-voltage outlet power supply of the transformer outlet protection switch, and meanwhile, an alarm is switched on and the working personnel take protection measures, and therefore the transformer temperature protection and alarm device plays a protection role.
Description
Technical field
The present invention relates to a kind of electric protective device, be specifically related to a kind of transformer temperature protection and warning device.
Background technology
Not relevant with electricity nowhere in the modern life; transformer is the tie of family and grid contact; user's disconnected need for electricity when different is different; often cause miniature transformer ebb period load light; peak period overload; can cause transformer to surpass the allowable temperature operation; miniature transformer also can cause warm transformer to spend height when other abnormal operating condition simultaneously; and miniature transformer is not installed temperature protective device usually; after the upper strata oil temperature surpasses 85 ℃; continue long-play, will cause transformer insulated reduction; affect the life-span of transformer, even the fault such as occur burning and occur.
Summary of the invention
The object of the present invention is to provide a kind of transformer temperature protection and warning device, miniature transformer overload when having solved peak of power consumption, excess Temperature cause transformer insulated performance reduction, useful life to shorten, even the problem of burning.
For solving above-mentioned technical problem; the present invention is by the following technical solutions: a kind of transformer temperature protection and warning device; comprise thermostat; metal base plate and metal shell; described thermostat is fixed on the metal base plate; metal base plate is fixed on the metal shell; and thermostat is positioned at metal base plate and the formed cavity of metal shell; the side of described metal shell is provided with the metal connecting plate; have screw on the metal connecting plate; metal shell is fixed on the transformer by the screw on the metal connecting plate; normally opened contact on the described thermostat is connected with lead-in wire, and the through wires hole that lead-in wire passes on the metal base plate links to each other with the shunt opening breaking coil that transformer exports on the protection switch with alarm respectively.
For making the present invention play better technique effect: further technical scheme is that above-mentioned thermostat is to be fixed by screws on the metal base plate.
Further technical scheme is that above-mentioned metal base plate is to be fixed by screws on the metal shell.
Further technical scheme is that above-mentioned thermostat is KSD series Kick type temperature controller.
Further technical scheme is that above-mentioned screw internal diameter is 15mm.
Further technical scheme is that above-mentioned alarm is electric bell or windbell.
Compared with prior art; the invention has the beneficial effects as follows: the present invention is installed on the transformer; the variations in temperature of energy Real Time Monitoring transformer; when the temperature of transformer surpasses the temperature that thermostat is scheduled to; the normally opened contact of thermostat is closed; the low tension outlet power supply of control transformer outlet protection switch depressor is connected simultaneously the timely simultaneously staff of alarm and is taked safeguard measure, plays a protective role.
Description of drawings
Fig. 1 is the structure cutaway view of a kind of transformer temperature protection of the present invention and an embodiment of warning device.
Fig. 2 is the top plan view of Fig. 1.
Fig. 3 is the circuit connection diagram of a kind of transformer temperature protection of the present invention and an embodiment of warning device.
Fig. 4 is a kind of transformer temperature protection of the present invention shown in Fig. 3 and embodiment of warning device and transformer lines connection layout.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 and Fig. 2 show an embodiment of a kind of transformer temperature protection of the present invention and warning device: a kind of transformer temperature protection and warning device; comprise thermostat 1; metal base plate 2 and metal shell 3; described thermostat 1 is fixed on the metal base plate 2; metal base plate 2 is fixed on the metal shell 3; and thermostat 1 is positioned at metal base plate 2 and metal shell 3 formed cavitys; the side of described metal shell 3 is provided with metal connecting plate 5; have screw 7 on the metal connecting plate 5; metal shell 3 is fixed on the transformer by the screw 7 on the metal connecting plate 5; normally opened contact 4 on the described thermostat 1 is connected with lead-in wire 6, and the through wires hole 8 that lead-in wire 6 passes on the metal base plate 2 links to each other with the shunt opening breaking coil that transformer exports on the protection switch with alarm respectively.As shown in Figure 3, L and N are the phase voltage link, KSD1 is the auxiliary normally opened contact that the normally opened contact of thermostat is in series, QA1 is auxiliary normally opened contact, the shunt opening tripping operation actuating coil that QAL is in series for the normally opened contact with thermostat, as shown in Figure 4, shunt opening tripping operation actuating coil is complementary with the load circuit plastic switch QA that is series at transformer.As preferably, the load circuit can be told many minute and load circuit, and is controlled respectively by assisted plastic switch such as 1QA, 2QA, 3QA, 4QA, 5QA and 6QA.
Another embodiment of a kind of transformer temperature protection and warning device according to the present invention, thermostat 1 is to be fixed by screws on the metal base plate 2.
Another embodiment of a kind of transformer temperature protection and warning device according to the present invention, metal base plate 2 is to be fixed by screws on the metal shell 3.
Another embodiment of a kind of transformer temperature protection and warning device according to the present invention, thermostat 1 are KSD series Kick type temperature controllers.
Another embodiment of a kind of transformer temperature protection and warning device according to the present invention, screw 7 internal diameters are 15mm.
Another embodiment of a kind of transformer temperature protection and warning device according to the present invention, alarm is electric bell or windbell.
When the thermostat 1 among the present invention is sensed the transformer predetermined temperature, when for example reaching 85 ℃, normally opened contact 4 closures that thermostat is 1 li, the connection alarm is in time notified the staff to supervise or is taked stamp to be, connect simultaneously the shunt opening breaking coil on the low tension outlet switch of transformer, disconnect the low tension outlet power supply of transformer.
" embodiment " who speaks of in this manual, " another embodiment ", " embodiment ", " preferred embodiment " etc., the specific features, structure or the characteristics that refer in conjunction with this embodiment description are included among at least one embodiment of the application's generality description.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in specification.Furthermore, when describing a specific features, structure or characteristics in conjunction with arbitrary embodiment, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also fall within the scope of the invention.
Although invention has been described with reference to a plurality of explanatory embodiment of the present invention here, but, should be appreciated that, those skilled in the art can design a lot of other modification and execution modes, and these are revised and execution mode will drop within the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes also will be obvious.
Claims (6)
1. a transformer temperature is protected and warning device; it is characterized in that: comprise thermostat (1); metal base plate (2) and metal shell (3); described thermostat (1) is fixed on the metal base plate (2); metal base plate (2) is fixed on the metal shell (3); and thermostat (1) is positioned at metal base plate (2) and the formed cavity of metal shell (3); the side of described metal shell (3) is provided with metal connecting plate (5); have screw (7) on the metal connecting plate (5); metal shell (3) is fixed on the transformer by the screw (7) on the metal connecting plate (5); normally opened contact (4) on the described thermostat (1) is connected with lead-in wire (6), and the through wires hole (8) that lead-in wire (6) passes on the metal base plate (2) links to each other with the shunt opening breaking coil that transformer exports on the protection switch with alarm respectively.
2. a kind of transformer temperature according to claim 1 is protected and warning device, and it is characterized in that: described thermostat (1) is to be fixed by screws on the metal base plate (2).
3. a kind of transformer temperature according to claim 1 is protected and warning device, and it is characterized in that: described metal base plate (2) is to be fixed by screws on the metal shell (3).
4. a kind of transformer temperature according to claim 1 is protected and warning device, it is characterized in that: described thermostat (1) is KSD series Kick type temperature controller.
5. a kind of transformer temperature according to claim 1 is protected and warning device, and it is characterized in that: described screw (7) internal diameter is 15mm.
6. the described a kind of transformer temperature of any one is protected and warning device according to claim 1-5, and it is characterized in that: described alarm is electric bell or windbell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410774.2A CN102931638B (en) | 2012-10-24 | 2012-10-24 | A kind of transformer temperature protection and warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410774.2A CN102931638B (en) | 2012-10-24 | 2012-10-24 | A kind of transformer temperature protection and warning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102931638A true CN102931638A (en) | 2013-02-13 |
| CN102931638B CN102931638B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210410774.2A Active CN102931638B (en) | 2012-10-24 | 2012-10-24 | A kind of transformer temperature protection and warning device |
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| Country | Link |
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| CN (1) | CN102931638B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591828Y (en) * | 2002-12-30 | 2003-12-10 | 戴南平 | Dry type transformer thermal protector |
| CN201215890Y (en) * | 2008-01-01 | 2009-04-01 | 刘振安 | Anti-burning automatic protection device for low-voltage distribution transformer |
| CN101510483A (en) * | 2009-03-20 | 2009-08-19 | 朱英年 | Kick type temperature controller |
| CN202957576U (en) * | 2012-10-24 | 2013-05-29 | 四川省电力公司达州电业局 | Temperature protection and alarm device for transformer |
-
2012
- 2012-10-24 CN CN201210410774.2A patent/CN102931638B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591828Y (en) * | 2002-12-30 | 2003-12-10 | 戴南平 | Dry type transformer thermal protector |
| CN201215890Y (en) * | 2008-01-01 | 2009-04-01 | 刘振安 | Anti-burning automatic protection device for low-voltage distribution transformer |
| CN101510483A (en) * | 2009-03-20 | 2009-08-19 | 朱英年 | Kick type temperature controller |
| CN202957576U (en) * | 2012-10-24 | 2013-05-29 | 四川省电力公司达州电业局 | Temperature protection and alarm device for transformer |
Non-Patent Citations (1)
| Title |
|---|
| 高福永: "突跳式温控器", 《电子报》, 11 April 2010 (2010-04-11), pages 1 - 6 * |
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|---|---|
| CN102931638B (en) | 2016-05-11 |
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