CN207689089U - A kind of transformer Oil Leakage Detecting and the device of alarm - Google Patents
A kind of transformer Oil Leakage Detecting and the device of alarm Download PDFInfo
- Publication number
- CN207689089U CN207689089U CN201720449334.6U CN201720449334U CN207689089U CN 207689089 U CN207689089 U CN 207689089U CN 201720449334 U CN201720449334 U CN 201720449334U CN 207689089 U CN207689089 U CN 207689089U
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- China
- Prior art keywords
- alarm
- transformer
- pressure sensor
- leakage detecting
- signal detector
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Abstract
The utility model belongs to electronic surveying field, and in particular to a kind of transformer Oil Leakage Detecting and the device of alarm, including the pressure sensor in transformer inner cavity is set, pressure sensor is electrically connected a signal detector, and signal detector is electrically connected a warning device.An amplifying circuit is connected between the pressure sensor and signal detector.This transformer Oil Leakage Detecting and the device of alarm, it is reduced using liquid level under oil leak state, the principle that pressure can change, the pressure change of transformer Seal Oil is detected using pressure sensor, to realize Oil Leakage Detecting and alarm, the insulating effect of guarantee transformer Seal Oil, cooling effect, extinguishing arc effect.
Description
Technical field
The utility model belongs to electronic surveying field, and in particular to a kind of transformer Oil Leakage Detecting and the device of alarm.
Background technology
We would generally be oil-filled in transformer, to improve the performance of transformer.Transformer oil plays an important role：Insulation is made
With, cooling effect, extinguishing arc effect, transformer Seal Oil is extremely important, prevents oil leak essential.
Utility model content
The purpose of this utility model is that design provides a kind of device that can be detected transformer oil leak and be protected.
For this purpose, the utility model provides the device of a kind of transformer Oil Leakage Detecting and alarm, including it is arranged in transformer
The pressure sensor of inner cavity, pressure sensor are electrically connected a signal detector, and signal detector is electrically connected a warning device.
An amplifying circuit is connected between the pressure sensor and signal detector.
The pressure sensor is mounted on the intracavity bottom that transformer is full of Seal Oil.
The signal detector is voltage monitor.
The warning device is audible-visual annunciator, including buzzer alarm and flashing warning light alarm.
The beneficial effects of the utility model：This transformer Oil Leakage Detecting provided by the utility model and the device of alarm,
It is reduced using liquid level under oil leak state, the principle that pressure can change, the pressure of transformer Seal Oil is detected using pressure sensor
Variation, to realize Oil Leakage Detecting and alarm, the insulating effect of guarantee transformer Seal Oil, cooling effect, extinguishing arc effect.
Description of the drawings
The utility model is described in further details below with reference to attached drawing.
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is a kind of simple amplification circuit diagram.
Reference sign：1, transformer；2, pressure sensor；3, amplifying circuit；4, signal detector；5, alarm dress
It sets.
Specific implementation mode
Embodiment 1：
The present embodiment provides a kind of transformer Oil Leakage Detecting and the devices of alarm, as shown in Figure 1, including being arranged in transformer
The pressure sensor 2 of 1 inner cavity, pressure sensor 2 are electrically connected a signal detector 4, and signal detector 4 is electrically connected an alarm
Device 5, the pressure sensor 2 are mounted on the intracavity bottom that transformer 1 is full of Seal Oil.
1 inner cavity of transformer is full of Seal Oil can there are one liquid levels, oil leak can cause the variation of liquid level.Known according to physics
The Seal Oil of certain liquid will produce a pressure for 1 intracavity bottom of transformer, and base pressure also can when liquid level changes
Variation, therefore can detect the leakage of Seal Oil by detecting the pressure change of intracavity bottom.
The current research of pressure sensor is also highly developed, is widely used in industry-by-industry.It is extensive using measured medium, it can
Oil, water etc. are surveyed, precision can reach 0.25%, and there is high stability, the convenient feature of installation and debugging can directly sense test solution
Position pressure is not influenced by medium blistering, deposition.As shown in Figure 1, pressure sensor is placed on 1 intracavity bottom of transformer, because
It is identical for each position liquid level, so pressure sensor 2 is mounted on bottom, position can be according to easy for installation
To select.
It is high that bottom installation pressure sensor 2 of the present apparatus in 1 inner cavity of transformer can seal oil level to transformer 1 in real time
Degree is detected, and pressure sensor 2 is by stress reaction at electric signal output（Such as voltage signal）.When liquid level changes,
The pressure that pressure sensor 2 is experienced also changes, and the voltage signal of output also constantly changes.
Judge that output signal, output signal are maintained in stability range by signal detector 4, without alarm, at this time
1 state of transformer is not leak state；Output signal changes, and is not judged as that oil leak, triggering warning device 5 are carried out in stability range
Alarm.
Embodiment 2：
In order to ensure the accurate and easy detection of signal, connected between pressure sensor 2 and signal detector 4 in the present embodiment
One amplifying circuit 3.Amplifying circuit is the circuit of extensive utilization in power electronics, by using triode, metal-oxide-semiconductor, electricity
Resistance, capacitance etc. can be amplified input signal（Also referred to as gain）And then using amplified signal as output signal, amplification electricity
Road can be greatly enlarged times by input signal, and amplification factor can be between 100~10000 times at present.Pressure sensor 2 exports
Voltage signal be amplified by subsequent voltage amplifier circuit 3, amplification factor can by adjust circuit in component come
Setting.In the present embodiment, amplifying circuit 3 is as shown in Fig. 2, input voltage is u1, output voltage is u into after crossing amplification2, times magnification
Number is,, computational methods：,For triode internal resistance,For the intrinsic parameter of triode.
Signal detector 4 is to output signalJudged, when transformer works normally, output voltage is
On the basis of, work as output signalWhen changing, warning device 5 is alarmed.
Embodiment 3：
Many functions may be implemented in chip, the function of needing may be implemented by inputting target program to chip interior, together
When chip have processing data speed it is fast, accuracy is high, low to hardware requirement, can be widely applied to data processing.Signal is examined
Surveying device 4 can be made of a kind of chip material, can be realized to testing number using write-in signal handler inside it
According to judgement and make next step command.In the present embodiment, the signal detector 4 is specially for voltage monitor, prison
Voltage signal is surveyed, alarm is sent out by warning device 5 after voltage signal changes.Warning device 5 is audible-visual annunciator, including
Buzzer alarm and flashing warning light alarm.
In conclusion this transformer Oil Leakage Detecting of the utility model and the device of alarm, utilize liquid under oil leak state
Face reduces, the principle that pressure can change, and the pressure change of transformer Seal Oil is detected using pressure sensor, to realize that oil leak is examined
It surveys and alarm, the insulating effect of guarantee transformer Seal Oil, cooling effect, extinguishing arc acts on.
It is exemplified as above be only to the utility model for example, not constituting to the scope of protection of the utility model
Limitation, within every design same or analogous with the utility model all belongs to the scope of protection of the present invention.
Claims (3)
1. a kind of transformer Oil Leakage Detecting and the device of alarm, it is characterised in that：Including being arranged in transformer（1）The pressure of inner cavity
Sensor（2）, pressure sensor（2）It is electrically connected a signal detector（4）, signal detector（4）One alarm dress of electrical connection
It sets（5）；The pressure sensor（2）And signal detector（4）Between connect an amplifying circuit（3）；The pressure passes
Sensor（2）Mounted on transformer（1）Intracavity bottom full of Seal Oil.
2. transformer Oil Leakage Detecting as described in claim 1 and the device of alarm, it is characterised in that：The signal detector
（4）For voltage monitor.
3. transformer Oil Leakage Detecting as described in claim 1 and the device of alarm, it is characterised in that：The warning device
（5）It is audible-visual annunciator, including buzzer alarm and flashing warning light alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449334.6U CN207689089U (en) | 2017-04-26 | 2017-04-26 | A kind of transformer Oil Leakage Detecting and the device of alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449334.6U CN207689089U (en) | 2017-04-26 | 2017-04-26 | A kind of transformer Oil Leakage Detecting and the device of alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689089U true CN207689089U (en) | 2018-08-03 |
Family
ID=62986473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720449334.6U Expired - Fee Related CN207689089U (en) | 2017-04-26 | 2017-04-26 | A kind of transformer Oil Leakage Detecting and the device of alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207689089U (en) |
-
2017
- 2017-04-26 CN CN201720449334.6U patent/CN207689089U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20190426 |