CN207993648U - A kind of self-shield power transformer - Google Patents
A kind of self-shield power transformer Download PDFInfo
- Publication number
- CN207993648U CN207993648U CN201820447911.2U CN201820447911U CN207993648U CN 207993648 U CN207993648 U CN 207993648U CN 201820447911 U CN201820447911 U CN 201820447911U CN 207993648 U CN207993648 U CN 207993648U
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- China
- Prior art keywords
- main control
- control module
- transformer
- module
- self
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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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- Housings And Mounting Of Transformers (AREA)
- Protection Of Transformers (AREA)
Abstract
The utility model discloses a kind of self-shield power transformers; it is connected with breaker between each casing and corresponding winding of its input side; oil temperature sensor and fuel level sensor are housed in its fuel tank; the outside of fuel tank is equipped with sound transducer; the transformer further includes main control module; oil temperature sensor, fuel level sensor and sound transducer are connect with main control module, and main control module is connected with amplifying circuit, the relay connection of amplifying circuit and breaker.The oil level of the temperature to the insulating oil in fuel tank and insulating oil is detected respectively for oil temperature sensor and fuel level sensor, and the vibration for the sound and generation that sound transducer and vibrating sensor respectively send out transformer is detected.Oil temperature, oil level value, the decibel value of sound and the range value of vibration are compared by main control module with respective reference value; when there is any one to be more than reference value; master control module controls breaker disconnects, and the connection of transformer and power grid is made to be disconnected, and protects transformer.
Description
Technical field
The utility model is related to a kind of electric power primary equipments, more specifically, it relates to a kind of self-shield power transformer.
Background technology
Transformer can be divided into dry-type transformer, oil-immersed transformer and inflatable transformer according to insulation mode.Oil immersion
Formula transformer device structure is compact, good cooling results, and under similar power condition, product-specific investments are lower, and performance is relatively reliable.
Be marked with transformer oil inside oil-immersed transformer, there are two effects for transformer oil, one is transformer winding it
Between, winding insulate between iron core and fuel tank, the second is heated generate convection current, to play cooling to transformer core and winding
Effect.
Oil-immersed transformer generates heat in the engineering of operation, makes the heated heating of transformer oil, high temperature that can make transformer
Oil is unstable, and in addition transformer oil is likely to occur leakage, in addition, when winding iron core component occurs abnormal, transformer can be sent out
Larger sound, when the above-described situation occurs, it should take emergency shutdown measure immediately, to protect transformer, avoid pacifying
Full accident reduces economic loss.
But existing oil-immersed transformer does not have the function of self-test self-shield, cause its run safety by
To certain threat.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of self-protected transformer, tool
The function of having self-test self-shield improves the safety of operation.
To achieve the above object, the utility model provides following technical solution：
A kind of self-shield power transformer, including fuel tank, winding iron core component and casing, the input side of the transformer
It is connected with breaker between each casing and corresponding winding, is sensed equipped with oil temperature sensor and oil level in the fuel tank
The outside of device, the fuel tank is equipped with sound transducer, which further includes main control module and power module, the oil temperature sensing
Device, fuel level sensor and sound transducer are connect with the signal input part of main control module, the signal output of the main control module
End is connected with amplification circuit module, and the amplification circuit module is connect with the relay of control breaker opening and closing, the power supply mould
Block is used for each sensor and module for power supply.
Preferably：The outside of the fuel tank is also equipped with vibrating sensor, the vibrating sensor and the master control
The signal input part of module connects.
Preferably：The transformer further includes the network communication module being connect with main control module.
Preferably：The network communication module is RS485 communication modules.
Preferably：The transformer further includes the gsm module being connect with main control module.
Preferably：The main control module is microcontroller.
Compared with prior art, the utility model has the advantages that：The transformer in the process of work, oil temperature sensor and
The oil level of the temperature to the insulating oil in fuel tank and insulating oil is detected and sends out the information detected fuel level sensor respectively
It send to main control module, and the vibration for the sound and generation that sound transducer and vibrating sensor respectively send out transformer is examined
It surveys and the information detected is sent to main control module.Main control module is by oil temperature, oil level value, the decibel value of sound and vibration
Range value be compared with respective reference value, when have any one be more than reference value when, main control module sends out control signal,
Control signal be amplified rear-guard motor type relay action, to control breaker disconnect, at this time the winding of the input side of transformer with
The connection of power grid is disconnected, and transformer is out of service, so as to effective protection transformer.
Description of the drawings
Fig. 1 is the structural schematic diagram of self-protected transformer；
Fig. 2 is circuit diagram.
Reference sign:1, fuel tank；2, winding iron core component；3, casing；4, breaker；5, control cabinet；6, oil temperature passes
Sensor；7, fuel level sensor；8, sound transducer；9, vibrating sensor.
Specific implementation mode
Referring to Fig.1, a kind of self-shield power transformer, including fuel tank 1, are fixed with winding iron core component 2 in fuel tank 1,
And insulating oil is marked in fuel tank 1, winding iron core component 2 is immersed in insulating oil, and the set for wiring is fixed at 1 top of fuel tank
Pipe 3 is wherein connected with breaker 4, in fuel tank 1 between each casing 3 and corresponding winding of the input side of transformer
Equipped with oil temperature sensor 6 and fuel level sensor 7, sound transducer 8 and vibrating sensor 9 are housed outside fuel tank 1, fuel tank 1
Outside portion is further fixed on control cabinet 5.
With reference to Fig. 2, which further includes main control module and power module, oil temperature sensor 6, fuel level sensor 7, sound
Sensor 8 and vibrating sensor 9 are connect with the signal input part of main control module, and the signal output end of main control module, which is connected with, to be put
Big circuit module, amplification circuit module are connect with the relay that control breaker 4 is opened and closed, and power module is used for each sensor
And module for power supply.
In the process of work, oil temperature sensor 6 and fuel level sensor 7 are respectively to the insulating oil in fuel tank 1 for the transformer
Temperature and the oil level of insulating oil be detected and the information detected be sent to main control module, and sound transducer 8 and shake
The vibration for the sound and generation that dynamic sensor 9 respectively sends out transformer is detected and the information detected is sent to master control
Module.Main control module compares oil temperature, oil level value, the decibel value of sound and the range value of vibration with respective reference value
Compared with when there is any one to be more than reference value, main control module sends out control signal, and it is dynamic that control signal is amplified rear-guard motor type relay
Make, disconnected to control breaker 4, the connection of the winding and power grid of the input side of transformer at this time is disconnected, and transformer stops
Operation, so as to effective protection transformer.
In the present embodiment, main control module is using microcontroller.
To realize that the transformer further includes the network communication module being connect with main control module to the remote monitoring of transformer,
It is communicated to connect to establish main control MCU and remote monitoring host, the network communication module specifically used here is RS485
Communication module.
In addition, the transformer further includes the gsm module being connect with main control module, and when being abnormal situation, main control module
It generates exception information and warning message is sent to the mobile phone of staff by gsm module, to remind work in first time
Personnel.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of self-shield power transformer, including fuel tank, winding iron core component and casing, it is characterized in that：The transformer
It is connected with breaker between each casing and corresponding winding of input side, oil temperature sensor and oil are housed in the fuel tank
The outside of level sensor, the fuel tank is equipped with sound transducer, which further includes main control module and power module, the oil
Temperature sensor, fuel level sensor and sound transducer are connect with the signal input part of main control module, the letter of the main control module
Number output end is connected with amplification circuit module, and the amplification circuit module is connect with the relay of control breaker opening and closing, described
Power module is used for each sensor and module for power supply.
2. self-shield power transformer according to claim 1, it is characterized in that：The outside of the fuel tank is also equipped with vibration and passes
Sensor, the vibrating sensor are connect with the signal input part of the main control module.
3. self-shield power transformer according to claim 1, it is characterized in that：The transformer further includes connecting with main control module
The network communication module connect.
4. self-shield power transformer according to claim 3, it is characterized in that：The network communication module is logical for RS485
Believe module.
5. self-shield power transformer according to claim 1, it is characterized in that：The transformer further includes connecting with main control module
The gsm module connect.
6. self-shield power transformer according to claim 1, it is characterized in that：The main control module is microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447911.2U CN207993648U (en) | 2018-04-01 | 2018-04-01 | A kind of self-shield power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820447911.2U CN207993648U (en) | 2018-04-01 | 2018-04-01 | A kind of self-shield power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207993648U true CN207993648U (en) | 2018-10-19 |
Family
ID=63830404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820447911.2U Expired - Fee Related CN207993648U (en) | 2018-04-01 | 2018-04-01 | A kind of self-shield power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207993648U (en) |
-
2018
- 2018-04-01 CN CN201820447911.2U patent/CN207993648U/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: 20181019 Termination date: 20200401 |