CN206195332U - Novel oily totally enclosed transformer gas of formula protection device - Google Patents
Novel oily totally enclosed transformer gas of formula protection device Download PDFInfo
- Publication number
- CN206195332U CN206195332U CN201621220272.3U CN201621220272U CN206195332U CN 206195332 U CN206195332 U CN 206195332U CN 201621220272 U CN201621220272 U CN 201621220272U CN 206195332 U CN206195332 U CN 206195332U
- Authority
- CN
- China
- Prior art keywords
- dsp
- transformer
- mcu
- pressure sensor
- detection case
- Prior art date
- 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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Abstract
The utility model relates to a novel oily totally enclosed transformer gas of formula protection device belongs to electric power protection technical field. Technical scheme is: pressure sensor inlays on the detection case surface, and thermodetector inlays on the detection case surface, and pressure sensor is connected through amplifier circuit and DSP, and thermodetector and DSP are connected, and DSP passes through host interface HPI and is connected with MCU, and display, keyboard, communication component interconnect with MCU respectively, and DSP, optical coupler, relay connect gradually. The utility model discloses can correctly judge, processing oil soaks that the formula transformer is inside to take place various troubles, has solved that traditional gas protection shock resistance is poor, the mercury contact quality harmfully takes place the mistake and move and take place the problem that the mistake was moved with the flotation pontoon oil impregnate, make power transmission line more the safety and stability move.
Description
Technical field
The utility model is related to a kind of new oil immersed type full-sealed transformer gaseous shield, belongs to electric protection device
Technical field.
Background technology
Oil-immersed full-sealed transformer is required to one during oil pressure leak test, vacuum oil, transport and inflation storage
Carried out under fixed pressure.Fuel tank can be caused to deform when oil-immersed full-sealed transformer breaks down beyond authorized pressure operation
Generation potential safety hazard.The reduction of transformer Cooling effect can be caused when oil-immersed full-sealed transformer occurs permeability, oil leak situation
Raise transformer temperature.
Protection is the protection device for reflecting oil tank of transformer internal gas and oil mass and acting, used as the master of transformer
Protection is essential in transformer.But the mechanical structure measurement that traditional protection is used is inaccurate, it is impossible to accomplish digitlization,
Other protections are lagged behind.Traditional protection has that shock resistance is poor, mercury contact quality is bad occurs malfunction and floating drum permeability
There is the problem of malfunction, very big hidden danger is brought to the safety of power system.
The content of the invention
The purpose of this utility model is that design is a kind of carries out reality to oil-immersed full-sealed oil tank of transformer internal liquid pressure
When the protection device monitored.The device includes：Pressure sensor, temperature detector, detection case, amplifying circuit, MCU, display,
Keyboard, communication element, photo-coupler, relay, the pressure sensor are embedded in detection case surface, and temperature detector is embedded in
Detection case surface, pressure sensor and the amplified circuit of temperature detector detection data and DSP；Connection, DSP passes through HPI
HPI is connected with MCU, and display, keyboard, communication element are interconnected with MCU respectively, and DSP, photo-coupler, relay connect successively
Connect.
In the utility model, detection case should be placed on oil-immersed full-sealed transformer bottom and be close to its inwall, pressure
Sensor and temperature sensor signal are outer when using to connect through the amplifying circuit outside wire transmission to oil-immersed full-sealed transformer
Power supply is powered to pressure sensor and temperature sensor.
Detection data of the present utility model is shown in real time by display, when generation oil leak, transformer fault produce a small amount of gas
Body, display gives a warning prompting when passing through short circuit, shows when inside occurs catastrophe failure, near region passing through property short trouble
Show that device sends alarm and the actuating of relay.Oil pressure leak test, vacuum oil, transport and inflation are may be implemented in using the utility model
Monitoring pressure in real time change during storage, can be prevented effectively from accident generation.And can real-time detection energetically make hermetically sealed transformation
The ruuning situation of device, sends correct warning and alarm, reduces the number of times of transformer malfunction, it is ensured that circuit more stablizes, can
By operation.
Brief description of the drawings
A kind of new oil immersed type full-sealed transformer gaseous shield structure charts of Fig. 1,
In figure：Pressure sensor 1, temperature detector 2, amplifying circuit 4, DSP 5, MCU 6, keyboard 7, display 8, communication
Element 9, photo-coupler 10, relay 11.
Specific embodiment
As shown in Figure 1, a kind of new oil immersed type full-sealed transformer gaseous shield, its composition includes：Pressure is passed
Sensor, temperature detector, detection case, amplifying circuit, MCU, display, keyboard, communication element, photo-coupler, relay, it is described
Pressure sensor is embedded in detection case surface, and temperature detector is embedded in detection case surface, pressure sensor and temperature detector
The amplified circuit of detection data and DSP；Connection, DSP is connected by Host Port Interface with MCU, display, keyboard, communication element
Interconnected with MCU respectively, DSP, photo-coupler, relay are sequentially connected.
Oil-immersed full-sealed inside transformer structure is full of insulating oil, and detection case is placed on into transformer bottom makes its real-time
Monitoring liquid pressure, heating in winding can expand liquid during transformer station high-voltage side bus, so pressure Ying Yi when transformer normally runs
Determine in scope.When transformer oil leak, liquid pressure can be gradually reduced in transformer, when short circuit is passed through, in transformer
Liquid pressure can increase, but amplitude very little, when inside transformer occurs catastrophe failure or near region passing through property short trouble
Insulation oil gasification produces a large amount of gases, and pressure increases and amplitude is very big in transformer.
Liquid pressure in pressure sensor real-time monitoring transformer, its produce the amplified circuit transmission of electric current to DSP,
DSP transfers data to MCU by calculating the liquid pressure and and keyboard input-value that show over the display in real-time transformer
It is compared, through communication element data transfer to master control room.
When occur oil leak situation when, in transformer fluid pressure not in normal range of operation, i.e., less than input through keyboard most
Small value and be gradually reduced, now display gives a warning prompting, data are transmitted to master control room through communication element, operator on duty should and
When send someone to overhaul transformer.
When the short circuit of passing through property, liquid pressure can be slightly larger than input through keyboard maximum in transformer, now display
Given a warning prompting, and data are transmitted to master control room through communication element, and now operator on duty should send someone to examine transformer in time
Repair, in case failure further expands.
When inside transformer occurs catastrophe failure or near region passing through property short trouble, liquid reduces gas in transformer
Body increases, and because transformer uses all-sealed structure, pressure sensor output current increases, and signal transmission is bright to numerical value during MCU
Aobvious to be more than input through keyboard maximum, now display sends alarm, and data are transmitted to master control room through communication element in MCU, on duty
Personnel should take corresponding measure, when in MCU signal numerical value more than input through keyboard working value when, MCU by actuating signal through DSP,
Photo-coupler is transmitted to relay, and jumps circle by the actuating of relay, to protect the safety of power system.
The situation of temperature in temperature sensor real-time monitoring transformer, is risen by the data that liquid pressure in transformer is gathered
Auxiliary judgment is acted on, to avoid MCU from sending false command.
Claims (4)
1. a kind of new oil immersed type full-sealed transformer gaseous shield, its composition includes：Pressure sensor, temperature detection
Device, detection case, DSP, MCU, display, keyboard, communication element, photo-coupler, relay, the pressure sensor and temperature are examined
The input of the amplified circuit of output end and DSP of surveying device is connected with each other, and DSP and MCU is connected with each other, display, keyboard, communication
Element is connected with each other with MCU respectively, and DSP, photo-coupler and relay are sequentially connected.
2. a kind of new oil immersed type full-sealed transformer gaseous shield according to claim 1, it is characterised in that：Institute
State and should be placed on when detection case is used oil immersed type Totally-closed transformer oil bottom portion.
3. a kind of new oil immersed type full-sealed transformer gaseous shield according to claim 1, it is characterised in that：Institute
State pressure sensor and temperature detector is embedded in the same surface of detection case.
4. a kind of new oil immersed type full-sealed transformer gaseous shield according to claim 1, it is characterised in that：Institute
Detection case is stated to be fully sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220272.3U CN206195332U (en) | 2016-11-14 | 2016-11-14 | Novel oily totally enclosed transformer gas of formula protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220272.3U CN206195332U (en) | 2016-11-14 | 2016-11-14 | Novel oily totally enclosed transformer gas of formula protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195332U true CN206195332U (en) | 2017-05-24 |
Family
ID=58735467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621220272.3U Expired - Fee Related CN206195332U (en) | 2016-11-14 | 2016-11-14 | Novel oily totally enclosed transformer gas of formula protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206195332U (en) |
-
2016
- 2016-11-14 CN CN201621220272.3U patent/CN206195332U/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 |
Granted publication date: 20170524 Termination date: 20171114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |