CN203490023U - Transformer oil pressure monitoring system - Google Patents
Transformer oil pressure monitoring system Download PDFInfo
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- CN203490023U CN203490023U CN201320636938.3U CN201320636938U CN203490023U CN 203490023 U CN203490023 U CN 203490023U CN 201320636938 U CN201320636938 U CN 201320636938U CN 203490023 U CN203490023 U CN 203490023U
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- oil pressure
- oil
- pressure monitoring
- pressure
- monitoring system
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Abstract
The embodiment of the utility model discloses a transformer oil pressure monitoring system. The transformer oil pressure monitoring system is applied to an oil-immersed electric power transformer, and comprises an oil pressure monitoring part and a flange plate. The oil pressure monitoring part comprises a pressure transmitter; the pressure transmitter is used to acquire oil pressure data of an oil tank of the oil-immersed electric power transformer through the flange plate connected with an oil outlet pipe and convert the acquired oil pressure data into a current signal or a voltage signal; and one end of the flange plate is connected with the oil outlet pipe of the oil tank of the oil-immersed power transformer, and the other end of the flange plate is connected with the pressure transmitter. Therefore, for different types of transformers, pressure transmitters are all installed on flange plates connected with oil outlet pipes of transformer oil tanks; and the oil pressure data of the transformer oil tank are effectively acquired, and, at the same time, an installation position of the pressure transmitter is fixed, so the degree of difficulty of installation operation and the degree of difficulty of subsequent maintenance are greatly reduced.
Description
Technical field
The utility model relates to field transformer, particularly relates to a kind of transformer oil pressure monitoring system.
Background technology
Pressure transducer is a kind of sensor the most conventional in industrial practice, pressure transducer mainly utilizes piezoelectric effect manufacture to form, during use, pressure transducer receives various pressure signals and is converted into electric current or voltage signal, it is widely used in various industrial automatic control environment, such as on transformer.Because a lot of transformers are arranged on open air conventionally, and transformer internal structure external structure is complicated, for different transformers, have the position of different setting pressure sensors, cause thus for different transformers, have the mode of different setting pressure sensors, fitting operation and follow-up maintenance etc. are brought to difficulty.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of transformer oil pressure monitoring system, dissimilar transformer is all adopted to the installation site of identical pressure transducer, has reduced the degree of difficulty of fitting operation and follow-up maintenance.
The utility model embodiment discloses following technical scheme:
A transformer oil pressure monitoring system, is applied to oil-immersed power transformer, comprises oil pressure monitoring component and ring flange:
Described oil pressure monitoring component comprises pressure unit;
Described pressure unit, gathers the oil pressure data of described oil-immersed power transformer oil tank, and the oil pressure data that collect is converted to curtage signal for the ring flange by being connected with described flowline;
One end of described ring flange is connected with the flowline of oil-immersed power transformer oil tank, and the other end is connected with described pressure unit.
Preferably, described oil pressure monitoring component also comprises signal acquiring board and front panel:
The input end of described signal acquiring board is connected with the output terminal of described pressure unit, for the oil pressure data of the curtage signal of described pressure unit output are converted to digital signal;
The input end of described front panel is connected with the output terminal of described signal acquiring board, for the oil pressure data of the digital signal of the output of described signal acquiring board are shown.
Preferably, described signal acquiring board comprises modulus A/D circuit, data processing unit, communicating circuit, running status control circuit, power circuit, key circuit, storage unit, warning circuit, download circuit and watchdog circuit.
Preferably, described storage unit, the oil pressure data of the curtage signal of exporting for pressure store transmitter.
Preferably, described key circuit, for arranging oil pressure data alarm threshold value, carry out self check, control data output, printing and control warning circuit startup.
Preferably, described oil pressure monitoring component also comprises pressure switch and lower panel:
One end of described pressure switch is connected with ring flange, for carry out the corresponding opening and closing operations of switch when described oil-immersed power transformer oil tank pressure intensity of variation surpasses predetermined extent;
Described lower panel is connected with described signal acquiring board with described pressure switch respectively.
Preferably, described lower panel comprises water joint, USB interface, 485 interfaces and 485 optical cable interfaces;
Described water joint is connected with described pressure switch;
Described USB interface, 485 interfaces and 485 optical cable interfaces are connected with described signal acquiring board.
Preferably, also comprise metal shell:
Described metal shell is connected with described ring flange, and it is inner that described oil pressure monitoring component is arranged on described metal shell.
Preferably, described metal shell is stainless steel metal shell.
By technique scheme, can be found out, for dissimilar transformer, all pressure unit is arranged on the ring flange being connected with oil tank of transformer flowline, when effectively gathering oil tank of transformer oil pressure data, also fix the installation site of pressure unit, greatly reduced thus the degree of difficulty of fitting operation and follow-up maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the system architecture schematic diagram of a kind of transformer oil pressure monitoring system of the utility model;
Fig. 2 is another system architecture schematic diagram of a kind of transformer oil pressure monitoring system of the utility model;
Fig. 3 is another system architecture schematic diagram of a kind of transformer oil pressure monitoring system of the utility model;
Fig. 4 is another system architecture schematic diagram of a kind of transformer oil pressure monitoring system of the utility model;
Fig. 5 is the entity structure diagram of a kind of transformer oil pressure monitoring system of the utility model.
Embodiment
The utility model embodiment provides a kind of transformer oil pressure monitoring system.On the one hand, for dissimilar transformer, all pressure unit is arranged on the ring flange being connected with oil tank of transformer flowline, when effectively gathering oil tank of transformer oil pressure data, also fix the installation site of pressure unit, greatly reduced thus the degree of difficulty of fitting operation and follow-up maintenance.
On the other hand, the oil pressure data of the collection of pressure unit are shown on panel, to facilitate, pressure is monitored, simultaneously, at ring flange, pressure switch is also installed, can, specially for the automatic corresponding on-off switch of pressure jump, improve the disposing capacity changing for abrupt pressure of whole system.
On the other hand, the oil pressure monitoring component of system is installed in to metal shell especially in stainless steel metal shell, has shielded thus the impact on electric signal transmission in system of electromagnetic interference (EMI) in transformer working environment, guaranteed the precision of electric signal transmission in system.
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
Embodiment mono-
Refer to Fig. 1, it is the system architecture schematic diagram of a kind of transformer oil pressure monitoring system of the utility model, is applied to oil-immersed power transformer, and this system comprises oil pressure monitoring component 10 and ring flange 20:
Described oil pressure monitoring component 10 comprises pressure unit 101;
Described pressure unit 101, gathers the oil pressure data of described oil-immersed power transformer oil tank, and the oil pressure data that collect is converted to curtage signal for the ring flange by being connected with described flowline;
It should be noted that, pressure unit can be converted to the oil pressure data of the oil-immersed power transformer oil tank inside collecting the current signal of 4-20mA or 0-10V, 0-5V voltage signal not etc.These signals can by transmission after again backstage monitor or show on panel.
One end of described ring flange 20 is connected with the flowline of oil-immersed power transformer oil tank, and the other end is connected with described pressure unit 101.
Because the specification of oil-immersed power transformer is not quite similar, so the technical solution of the utility model is designed with the ring flange of multiple different size, can adapt to the flowline valve of various different oil-immersed power transformers.
Preferably, in the transformer oil pressure monitoring system shown in earlier figures 1, described oil pressure monitoring component 10 also comprises signal acquiring board 102 and front panel 103, as shown in Figure 2:
The input end of described signal acquiring board 102 is connected with the output terminal of described pressure unit, for the oil pressure data of the curtage signal of described pressure unit output are converted to digital signal;
The input end of described front panel 103 is connected with the output terminal of described signal acquiring board, for the oil pressure data of the digital signal of the output of described signal acquiring board are shown.
That is to say, the front panel being connected with signal acquiring board can dynamically show the running status of pressure unit and fuel injection pressure signal by liquid crystal display and LED simultaneously.
Preferably, described signal acquiring board 102 comprises modulus A/D circuit, data processing unit, communicating circuit, running status control circuit, power circuit, key circuit, storage unit, warning circuit, download circuit and watchdog circuit.
Described A/D circuit is converted to the current signal of 4-20mA or 0-10V, 0-5V voltage signal not etc. by fuel injection pressure signal, and sends this signal to data processing unit.Then by communicating circuit and host computer, carry out communication.Communication format is standard Modbus agreement, supports RS-485 terminal to connect and 485 two kinds of communication modes of optical cable;
Described power circuit provides 5V to 24V direct supply not etc. for AD circuit, data processing unit, communicating circuit, running status control circuit, key circuit, storage unit, warning circuit, download circuit, watchdog circuit;
Described running status control circuit is used for showing running status and the fuel injection pressure signal value of pressure unit;
Described storage unit pressure store transmitter sends the historical data of fuel injection pressure signal;
Described key circuit is connected with front panel, is used for arranging fuel injection pressure signal alarm threshold value, carries out this self-check of device function, controls the functions such as whether data output and printing function, control warning circuit start;
Described warning circuit, when fuel injection pressure signal is greater than defined threshold, can send sound and light alarm.Whether this circuit is controlled and is started by key circuit;
Described download circuit is connected with USB interface, provides fuel injection pressure signal historical data to download and printing function;
Described watchdog circuit is used for improving antijamming capability of the present utility model, occurs deadlock situation while preventing data processing unit work.
Preferably, described storage unit, the oil pressure data of the curtage signal of exporting for pressure store transmitter.
Preferably, described key circuit, for arranging oil pressure data alarm threshold value, carry out self check, control data output, printing and control warning circuit startup.
Preferably, in the transformer oil pressure monitoring system shown in earlier figures 1, described oil pressure monitoring component 10 also comprises pressure switch 104 and lower panel 105, as shown in Figure 3:
One end of described pressure switch 104 is connected with ring flange 20, for carry out the corresponding opening and closing operations of switch when described oil-immersed power transformer oil tank pressure intensity of variation surpasses predetermined extent;
Described lower panel 105 is connected with described signal acquiring board 102 with described pressure switch 104 respectively.
Preferably, described lower panel 105 comprises water joint, USB interface, 485 interfaces and 485 optical cable interfaces;
Described water joint is connected with described pressure switch 104;
Described USB interface, 485 interfaces and 485 optical cable interfaces are connected with described signal acquiring board 102.
It should be noted that, pressure switch is connected with external unit by water joint, can carry out rapid reaction to burst pressure fault.
Can also be by USB interface by fuel injection pressure signal historical data from local printing or copy out.
Be integrated with 485 interfaces and 485 optical cable interfaces simultaneously, can use Shielded Twisted Pair or optical cable to be connected with monitoring backstage.
And signal acquiring board 102 can also be converted to digital signal by the electric signal of pressure unit 101 output, the communication interface by lower panel 105 sends monitoring backstage to.
By the present embodiment, can be found out, on the one hand, for dissimilar transformer, all pressure unit is arranged on the ring flange being connected with oil tank of transformer flowline, when effectively gathering oil tank of transformer oil pressure data, also fix the installation site of pressure unit, greatly reduced thus the degree of difficulty of fitting operation and follow-up maintenance.
On the other hand, the oil pressure data of the collection of pressure unit are shown on panel, to facilitate, pressure is monitored, simultaneously, at ring flange, pressure switch is also installed, can, specially for the automatic corresponding on-off switch of pressure jump, improve the disposing capacity changing for abrupt pressure of whole system.
Embodiment bis-
On the basis of embodiment mono-, the present embodiment, by the metal shell being arranged on outside oil pressure monitoring component is described, refers to Fig. 4, and it is another system architecture schematic diagram of a kind of transformer oil pressure monitoring system of the utility model, comprises metal shell 40:
Described metal shell 40 is connected with described ring flange 20, and it is inner that described oil pressure monitoring component is arranged on described metal shell.
Preferably, described metal shell 40 is stainless steel metal shell.
It should be noted that, oil pressure monitoring component middle part sub-unit is not completely inner in metal shell, requirement due to demonstration and data transmission, there are part parts to contact with extraneous by metal shell, refer to Fig. 5, it is the entity structure diagram of a kind of transformer oil pressure monitoring system of the utility model.
Visible, the front panel 103 in oil pressure monitoring component 10 and lower panel 105 for the part that shows and operate in metal shell outside 40, simultaneously for the interface of external data transmission be also in metal shell 40 outsides.
The native system consisting of above-mentioned part is easy for installation, and shield electromagnetic interference, meets the requirement of power transformer running environment to a certain extent.Meanwhile, native system not only has the function of conventional pressure unit and pressure switch, also supports various communication interfaces, simulating signal can be transformed to digital signal, realizes remote monitoring and the on-line monitoring of transformer oil pressure signal.
As can be seen from the above-described embodiment, on the one hand, for dissimilar transformer, all pressure unit is arranged on the ring flange being connected with oil tank of transformer flowline, when effectively gathering oil tank of transformer oil pressure data, also fix the installation site of pressure unit, greatly reduced thus the degree of difficulty of fitting operation and follow-up maintenance.
On the other hand, the oil pressure data of the collection of pressure unit are shown on panel, to facilitate, pressure is monitored, simultaneously, at ring flange, pressure switch is also installed, can, specially for the automatic corresponding on-off switch of pressure jump, improve the disposing capacity changing for abrupt pressure of whole system.
On the other hand, the oil pressure monitoring component of system is installed in to metal shell especially in stainless steel metal shell, has shielded thus the impact on electric signal transmission in system of electromagnetic interference (EMI) in transformer working environment, guaranteed the precision of electric signal transmission in system.
It should be noted that, one of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, to come the hardware that instruction is relevant to complete by computer program, described program can be stored in a computer read/write memory medium, this program, when carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above a kind of transformer oil pressure monitoring system provided by the utility model is described in detail, applied specific embodiment herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (9)
1. a transformer oil pressure monitoring system, is applied to oil-immersed power transformer, it is characterized in that, comprises oil pressure monitoring component and ring flange:
Described oil pressure monitoring component comprises pressure unit;
Described pressure unit, gathers the oil pressure data of described oil-immersed power transformer oil tank, and the oil pressure data that collect is converted to curtage signal for the ring flange by being connected with described flowline;
One end of described ring flange is connected with the flowline of oil-immersed power transformer oil tank, and the other end is connected with described pressure unit.
2. transformer oil pressure monitoring system according to claim 1, is characterized in that, described oil pressure monitoring component also comprises signal acquiring board and front panel:
The input end of described signal acquiring board is connected with the output terminal of described pressure unit, for the oil pressure data of the curtage signal of described pressure unit output are converted to digital signal;
The input end of described front panel is connected with the output terminal of described signal acquiring board, for the oil pressure data of the digital signal of the output of described signal acquiring board are shown.
3. transformer oil pressure monitoring system according to claim 2, it is characterized in that, described signal acquiring board comprises modulus A/D circuit, data processing unit, communicating circuit, running status control circuit, power circuit, key circuit, storage unit, warning circuit, download circuit and watchdog circuit.
4. transformer oil pressure monitoring system according to claim 3, is characterized in that, described storage unit, the oil pressure data of the curtage signal of exporting for pressure store transmitter.
5. transformer oil pressure monitoring system according to claim 3, is characterized in that, described key circuit, for arranging oil pressure data alarm threshold value, carry out self check, control data output, printing and control warning circuit startup.
6. transformer oil pressure monitoring system according to claim 1, is characterized in that, described oil pressure monitoring component also comprises pressure switch and lower panel:
One end of described pressure switch is connected with ring flange, for carry out the corresponding opening and closing operations of switch when described oil-immersed power transformer oil tank pressure intensity of variation surpasses predetermined extent;
Described lower panel is connected with described signal acquiring board with described pressure switch respectively.
7. transformer oil pressure monitoring system according to claim 6, is characterized in that, described lower panel comprises water joint, USB interface, 485 interfaces and 485 optical cable interfaces;
Described water joint is connected with described pressure switch;
Described USB interface, 485 interfaces and 485 optical cable interfaces are connected with described signal acquiring board.
8. according to the transformer oil pressure monitoring system described in claim 1 to 7 any one, it is characterized in that, also comprise metal shell:
Described metal shell is connected with described ring flange, and it is inner that described oil pressure monitoring component is arranged on described metal shell.
9. transformer oil pressure monitoring system according to claim 8, is characterized in that, described metal shell is stainless steel metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636938.3U CN203490023U (en) | 2013-10-15 | 2013-10-15 | Transformer oil pressure monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636938.3U CN203490023U (en) | 2013-10-15 | 2013-10-15 | Transformer oil pressure monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN203490023U true CN203490023U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320636938.3U Expired - Fee Related CN203490023U (en) | 2013-10-15 | 2013-10-15 | Transformer oil pressure monitoring system |
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| Country | Link |
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| CN (1) | CN203490023U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764325A (en) * | 2017-10-13 | 2018-03-06 | 南京力通达电气技术有限公司 | A kind of transformer wall-hanging comprehensive on-line monitoring apparatus |
| CN109855794A (en) * | 2018-12-09 | 2019-06-07 | 北京航天计量测试技术研究所 | A kind of pressure in-line calibration device based on the fusion of multi-communication protocol information |
| CN110174137A (en) * | 2019-05-07 | 2019-08-27 | 西安交通大学 | A kind of transformer monitoring device and method based on non electrical quantity comprehensive characteristics information |
-
2013
- 2013-10-15 CN CN201320636938.3U patent/CN203490023U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107764325A (en) * | 2017-10-13 | 2018-03-06 | 南京力通达电气技术有限公司 | A kind of transformer wall-hanging comprehensive on-line monitoring apparatus |
| CN109855794A (en) * | 2018-12-09 | 2019-06-07 | 北京航天计量测试技术研究所 | A kind of pressure in-line calibration device based on the fusion of multi-communication protocol information |
| CN110174137A (en) * | 2019-05-07 | 2019-08-27 | 西安交通大学 | A kind of transformer monitoring device and method based on non electrical quantity comprehensive characteristics information |
| WO2020224553A1 (en) * | 2019-05-07 | 2020-11-12 | 北京中瑞和电气有限公司 | Transformer monitoring apparatus and method based on non-electric-quantity comprehensive characteristic information |
| US11726145B2 (en) | 2019-05-07 | 2023-08-15 | Beijing Zhongruthe Electrical Co., Ltd | Transformer monitoring apparatus and method based on non-electricity comprehensive characteristic information |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20181015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |