CN217788180U - Intelligent monitoring device for distribution transformer - Google Patents

Intelligent monitoring device for distribution transformer Download PDF

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Publication number
CN217788180U
CN217788180U CN202221795989.6U CN202221795989U CN217788180U CN 217788180 U CN217788180 U CN 217788180U CN 202221795989 U CN202221795989 U CN 202221795989U CN 217788180 U CN217788180 U CN 217788180U
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China
Prior art keywords
oil
sensor
transformer
oil level
display controller
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Active
Application number
CN202221795989.6U
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Chinese (zh)
Inventor
杨东廷
杨秋实
丁立国
李伟
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Shandong Electric Power Group Co ltd
Shandong Energy Valley Group Co ltd
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Shandong Electric Power Group Co ltd
Shandong Energy Valley Group Co ltd
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Priority to CN202221795989.6U priority Critical patent/CN217788180U/en
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Abstract

The application discloses an intelligent monitoring device of a distribution transformer, which comprises a sensing device, a display controller and a sensor lead wire, wherein the sensor lead wire is used for connecting the sensing device and the display controller; the sensing device comprises a pressure release valve, a sensor mounting seat connected with the pressure release valve, a sensor module arranged in the sensor mounting seat, an oil level metering pipe arranged below the sensor mounting seat and connected with a transformer tank cover, an oil level color code arranged in the oil level metering pipe and connected with the sensor module, an oil float extending into the transformer tank cover, a buoy connecting rod arranged between the oil float and the oil level color code, and an oil temperature sensor arranged at the bottom of the oil float; the surface of the display controller is provided with a display screen for displaying signals collected by the sensor module and the oil temperature sensor. The detection device is more suitable for the transformation project of a distribution area, the transformer does not need to be dismantled, only power failure needs to be carried out for a short time, and the detection device can be dismantled and installed on the original pressure relief valve of the transformer.

Description

Intelligent monitoring device for distribution transformer
Technical Field
The application relates to the field of transformers, in particular to an intelligent monitoring device for a distribution transformer.
Background
The distribution transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings, and as the demand of small and medium-sized transformer products is increasing, the distribution transformer area is large in quantity, and the field inspection of all the products is difficult to realize due to the fact that the star chess is laid. In areas with higher requirements for safe operation reliability, such as central areas of first-line and second-line cities and heavily-loaded power utilization places, the distribution transformer designed by the traditional method only has a tubular oil level indicator (with a pressure release valve), does not have an oil surface thermometer, does not have related protection signal output, and only can observe the oil level on site. Therefore, the traditional distribution transformer is not suitable for the current development trend, and the research and development of the intelligent monitoring device for the three-in-one transformer with oil temperature, oil level and internal pressure of the oil tank is imperative.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the application provides a distribution transformer intelligent monitoring device, includes: the display device comprises a sensing device, a display controller and a sensor lead wire for connecting the sensing device and the display controller; the sensing device comprises a pressure release valve, a sensor mounting seat connected with the pressure release valve, a sensor module arranged in the sensor mounting seat, an oil level gauge pipe arranged below the sensor mounting seat and connected with a transformer tank cover, an oil level color code arranged in the oil level gauge pipe and connected with the sensor module, an oil float extending into the transformer tank cover, a float connecting rod arranged between the oil float and the oil level color code, and an oil temperature sensor arranged at the bottom of the oil float; the surface of the display controller is provided with a display screen and an interactive key for displaying the sensor module and signals acquired by the oil temperature sensor.
In one example, an alert device is disposed within the display controller; and a processor is arranged in the display controller and used for giving an alarm through the alarm device when the signal is abnormal.
In one example, the processor is electrically connected to the transformer fan, and the processor is further configured to control start and stop of the transformer fan.
In one example, a communication module is arranged in the display controller, and the communication module at least comprises an Ethernet interface and an RS485 interface.
In one example, the bottom of the oil level gauge tube is shaped to fit the original pressure relief valve port of the transformer.
In one example, the housing of the sensing device is made of stainless steel.
In one example, an oil level color scale viewport is disposed on a housing of the sensing device at the same height as the oil level color scale.
The online detection device has the characteristics of economy, convenience in operation, strong adaptability to outdoor environment and the like, and can be widely applied to distribution transformers and used as important components for monitoring the running state of oil immersed transformers. Meanwhile, the detection device is more suitable for the transformation project of the original distribution area, the transformation is convenient, the transformer does not need to be dismantled and returned to a factory for transformation, and only a short-time power cut is needed to dismantle and install the detection device on the original pressure release valve of the transformer.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram of an overall installation structure of an intelligent monitoring device for a distribution transformer in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a sensing device in an intelligent monitoring device for a distribution transformer in the embodiment of the present application.
The oil level gauge comprises a sensing device 1, a sensing device 2, a sensor lead 3, a display controller 4, a transformer 5, a pressure release valve 6, a sensor mounting seat 7, a sensor module 8, an oil level color scale 9, an oil level gauge pipe 10, a transformer box cover 11, an oil float 12 and an oil temperature sensor.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.
For the sake of simplicity, the drawings only show schematically the parts relevant to the invention, and they do not represent the actual structure as a product.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1-2, an embodiment of the present application provides a distribution transformer intelligent monitoring device, including: the display device comprises a sensing device 1, a display controller 3 and a sensor lead 2 for connecting the sensing device 1 and the display controller 3.
Wherein, sensing device 1 includes pressure release valve 5, the sensor mount pad 6 that links to each other with pressure release valve 5, install in the inside sensor module 7 of sensor mount pad 6, set up in sensor mount pad 6 below and the oil level meter pipe 9 that links to each other with transformer case lid 10, set up in oil level meter pipe 9 and the oil level color mark 8 that links to each other with sensor module 7, stretch into oil float 11 in transformer case lid 10, set up the buoy connecting rod between oil float 11 and oil level color mark 8, set up oil temperature sensor 12 in oil float 11 bottom.
The surface of the display controller 3 is provided with a display screen and interactive keys, and the display controller 3 is used for displaying signals acquired by the sensor module 7 and the oil temperature sensor 12.
In one embodiment, the display controller 3 of the monitoring device is provided with an alarm device, and the display controller 3 is provided with a processor for alarming by the alarm device when the signal is abnormal. The alarm mode can be an indicator light alarm or a sound alarm sent by an alarm device. Therefore, the monitoring device can monitor the internal pressure of the transformer oil tank in real time, has a display function and a pressure fault alarm function, can monitor and display the oil level of the transformer in real time, and has an oil level fault alarm function.
In one embodiment, the processor is electrically connected with the transformer fan, and is further used for controlling the starting and stopping of the transformer fan, and the monitoring device has the functions of measuring and displaying the temperature of the transformer oil in real time, controlling the starting and stopping of the transformer fan, alarming the over-temperature of the oil temperature and tripping the over-temperature protection of the oil temperature.
In one embodiment, a communication module is arranged in the display controller 3, the communication module at least comprises an ethernet interface and an RS485 interface, and data of signals acquired by the sensor can be uploaded to the field intelligent power distribution terminal in the form of RS485, ethernet interface and the like.
In one embodiment, the bottom shape of the oil level gauge pipe 9 is matched with the opening of the original pressure release valve 5 of the transformer 4, so that the detection device is more suitable for the reconstruction project of the original distribution area, the reconstruction is convenient, the transformer 4 does not need to be dismantled and returned to a factory for reconstruction, only power is cut off for a short time, and the original pressure release valve 5 of the transformer 4 is dismantled and installed.
In one embodiment, the housing of the sensing device 1 is made of stainless steel, and the housing of the sensing device 1 is provided with a viewing port of the oil level color scale 8 at the same height as the oil level color scale 8, so that a worker can obtain the height of the oil level in the transformer 4 in real time through the real-time interface of the oil level color scale 8.
In the actual use process, when the oil level in the transformer 4 changes, the oil floater 11 goes up and down along with the oil, the oil level color code 8 in the oil level metering pipe 9 changes, and the sensor module 7 is additionally arranged at the upper part of the oil level metering pipe to collect an oil level signal; a sensor mounting seat 6 is added at the lower part of the pressure release valve 5 and used for mounting a sensor module 7 and simultaneously acquiring a pressure signal in the oil tank; all collected oil temperature, oil level and pressure signals in the oil tank are transmitted to the controller through the sensor lead 2.
In one embodiment, the detection device supports a novel connection mode developed by a national network project, and as the national network project is provided with a fusion terminal, signals collected by the sensing device 1 can be directly transmitted to the fusion terminal through the sensor lead 2. Meanwhile, a 220V alternating current power supply is taken from the JP cabinet to supply power to the device, and the scheme can save the display controller 3.
It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, i.e. the traveling direction of the product, and should not be considered as limiting.
Second, when an element is referred to as being "on" or "disposed of" another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims (7)

1. The intelligent monitoring device of the distribution transformer is characterized by comprising a sensing device, a display controller and a sensor lead wire, wherein the sensor lead wire is used for connecting the sensing device with the display controller;
the sensing device comprises a pressure release valve, a sensor mounting seat connected with the pressure release valve, a sensor module arranged in the sensor mounting seat, an oil level gauge pipe arranged below the sensor mounting seat and connected with a transformer tank cover, an oil level color code arranged in the oil level gauge pipe and connected with the sensor module, an oil float extending into the transformer tank cover, a buoy connecting rod arranged between the oil float and the oil level color code, and an oil temperature sensor arranged at the bottom of the oil float;
the surface of the display controller is provided with a display screen and an interactive key for displaying the sensor module and signals collected by the oil temperature sensor.
2. The device of claim 1, wherein an alarm device is disposed within the display controller;
and a processor is arranged in the display controller and used for giving an alarm through the alarm device when the signal is abnormal.
3. The apparatus of claim 2, wherein the processor is electrically connected to the transformer blower, the processor further configured to control a start and a stop of the transformer blower.
4. The device of claim 1, wherein a communication module is disposed in the display controller, and the communication module comprises at least an ethernet interface and an RS485 interface.
5. The device of claim 1, wherein the bottom of the oil level gauge tube is shaped to fit the original pressure relief valve port of the transformer.
6. The device of claim 1, wherein the housing of the sensing device is made of stainless steel.
7. The device of claim 1, wherein an oil level patch viewport is provided on the housing of the sensing device at the same height as the oil level patch.
CN202221795989.6U 2022-07-12 2022-07-12 Intelligent monitoring device for distribution transformer Active CN217788180U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221795989.6U CN217788180U (en) 2022-07-12 2022-07-12 Intelligent monitoring device for distribution transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221795989.6U CN217788180U (en) 2022-07-12 2022-07-12 Intelligent monitoring device for distribution transformer

Publications (1)

Publication Number Publication Date
CN217788180U true CN217788180U (en) 2022-11-11

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CN202221795989.6U Active CN217788180U (en) 2022-07-12 2022-07-12 Intelligent monitoring device for distribution transformer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116429275A (en) * 2023-04-13 2023-07-14 广东电网有限责任公司佛山供电局 Transformer oil level gauge special for turn-to-turn short circuit test

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116429275A (en) * 2023-04-13 2023-07-14 广东电网有限责任公司佛山供电局 Transformer oil level gauge special for turn-to-turn short circuit test
CN116429275B (en) * 2023-04-13 2024-03-29 广东电网有限责任公司佛山供电局 Transformer oil level gauge special for turn-to-turn short circuit test

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