CN211426688U - Transformer bushing monitoring test platform - Google Patents

Transformer bushing monitoring test platform Download PDF

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Publication number
CN211426688U
CN211426688U CN201922106240.0U CN201922106240U CN211426688U CN 211426688 U CN211426688 U CN 211426688U CN 201922106240 U CN201922106240 U CN 201922106240U CN 211426688 U CN211426688 U CN 211426688U
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China
Prior art keywords
piston
oil
transformer bushing
cavity
monitoring
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Application number
CN201922106240.0U
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Chinese (zh)
Inventor
周丹
何宏明
杨贤
马志钦
蔡玲珑
林春耀
江丹宇
赵东生
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Guangdong Power Grid Co Ltd
Electric Power Research Institute of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Priority to CN201922106240.0U priority Critical patent/CN211426688U/en
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Abstract

The application discloses transformer bushing monitoring test platform includes: the device comprises a supporting seat, a transformer bushing body, an oil level meter, a pressure gauge, a piston and a driving mechanism; the transformer bushing body comprises an insulating bushing and an oil conservator; the insulating sleeve is vertically arranged on the supporting seat, and a cavity communicated with the interior of the oil conservator is arranged in the insulating sleeve; the oil conservator is arranged on the top of the insulating sleeve; the piston is arranged in the cavity and is in sealing sliding fit with the inner wall of the cavity, and the cavity is divided into an upper cavity and a lower cavity by the piston; transformer oil is arranged in the upper chamber; the driving mechanism is connected with the piston and is used for driving the piston to move up and down in the cavity; the oil level meter is arranged on the oil conservator and used for monitoring the oil level condition of the transformer oil; the manometer is installed on the conservator for the pressure condition in the monitoring epicoele room. The flexible and convenient test platform of the monitoring device for the transformer bushing can be provided, and research and improvement of the monitoring device are facilitated.

Description

Transformer bushing monitoring test platform
Technical Field
The application relates to the technical field of transformer monitoring, in particular to a transformer bushing monitoring test platform.
Background
According to different insulation structures, transformer sleeves are mainly divided into oiled paper insulation sleeves and dry sleeves, the currently transported transformer sleeves are mainly oiled paper insulation structure sleeves, and transformer oil and insulation paper are main insulation media of the sleeves. When the abnormality or fault such as partial discharge, overheating and the like occurs inside the transformer bushing, the dissolved gas in the oil is increased and expanded, so that the internal pressure is increased and the oil level is raised; when the transformer bushing is poorly sealed, oil leakage may occur, causing a drop in internal pressure and oil level. Therefore, the internal fault of the transformer bushing can be effectively judged by monitoring the oil level and the internal pressure of the transformer bushing, fault early warning is realized, and safe and reliable operation of the transformer bushing is ensured.
In order to improve monitoring efficiency and accuracy, it is also important to test and study a monitoring device for monitoring a transformer bushing. However, there is a lack of a flexible test platform for testing and researching monitoring devices.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present application is to provide a transformer bushing monitoring test platform, which can provide a flexible and convenient test platform for a monitoring device for a transformer bushing, and is helpful for research and improvement of the monitoring device.
In order to achieve the above technical objective, the present application provides a transformer bushing monitoring test platform, including: the device comprises a supporting seat, a transformer bushing body, an oil level meter, a pressure gauge, a piston and a driving mechanism;
the transformer bushing body comprises an insulating bushing and an oil conservator;
the insulating sleeve is vertically arranged on the supporting seat, and a cavity communicated with the inside of the oil conservator is arranged in the insulating sleeve;
the oil conservator is arranged on the top of the insulating sleeve;
the piston is arranged in the cavity and is in sealing sliding fit with the inner wall of the cavity, and the cavity is divided into an upper cavity and a lower cavity by the piston;
transformer oil is arranged in the upper chamber;
the driving mechanism is connected with the piston and is used for driving the piston to move up and down in the chamber;
the oil level gauge is arranged on the oil conservator and used for monitoring the oil level condition of the transformer oil;
the pressure gauge is installed on the oil conservator and used for monitoring the pressure condition in the upper chamber.
Further, the supporting seat comprises a top plate and a plurality of supporting legs;
the supporting legs are vertically arranged at the bottom of the top plate;
the insulating sleeve is mounted on the top of the top plate.
Further, the device also comprises a reinforcing plate;
the reinforcing plate is arranged below the top plate and parallel to the top plate, and the reinforcing plate is fixedly connected with the supporting legs.
Further, the driving mechanism comprises a hydraulic shaft cylinder and a hydraulic pump for driving the hydraulic shaft cylinder;
the hydraulic shaft cylinder is vertically arranged on the top of the reinforcing plate at a position right below the insulating sleeve, and a telescopic rod of the hydraulic shaft cylinder movably extends into the insulating sleeve and is connected with the piston.
Further, the driving mechanism comprises an internal threaded rod, an external threaded rod and a driving motor for driving the internal threaded rod to rotate;
the internal threaded rod is sleeved outside the external threaded rod, and the internal threaded rod is vertically and rotatably arranged on the supporting seat;
one end of the external threaded rod movably extends out of the internal threaded rod and is connected with the piston.
Further, one end of the inner threaded rod extends out of the top plate downwards and is rotatably connected with the reinforcing plate through a bearing piece.
Further, the inner threaded rod is pivotally connected to the top plate through a bearing member.
Further, the device also comprises a transmission assembly;
the transmission assembly comprises a first transmission gear and a second transmission gear;
the first transmission gear is fixedly sleeved on the inner threaded rod;
the second transmission gear is fixedly sleeved on the output shaft of the driving motor and is meshed with the first transmission gear;
the driving motor is installed on the reinforcing plate.
Further, the pressure gauge is a mechanical pressure gauge;
the oil level gauge is a mechanical oil level gauge.
Further, the device also comprises a high-low temperature test chamber;
the supporting seat, the transformer bushing body, the oil level gauge, the pressure gauge, the piston and the driving mechanism are installed in the high-low temperature test box.
According to the technical scheme, the transformer bushing body is vertically installed on the supporting seat, the piston is arranged in the cavity in the insulating bushing of the transformer bushing body, the cavity is divided into the upper cavity and the lower cavity, which are provided with the transformer oil, by the aid of the piston, the piston is driven to move up and down by the aid of the driving mechanism, and accordingly the oil level condition of the transformer oil is changed by the aid of the lifting movement of the piston, and the pressure condition in the upper cavity is changed. Can provide monitoring devices a nimble changeable and controllable experimental environment like this, the manometer and the oil level gauge that correspond the setting then can provide the monitoring result of standard, supply monitoring devices contrast to use. The whole monitoring device is provided with a flexible and convenient test platform, which is beneficial to the research and improvement of the monitoring device.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic overall structure diagram of a transformer bushing monitoring test platform provided in the present application, with a high-low temperature test chamber;
in the figure: 1. an insulating sleeve; 2. an oil conservator; 3. an oil level meter; 4. a pressure gauge; 5. an oil filling port; 6. transformer oil; 7. a piston; 8. an externally threaded rod; 9. an oil taking port; 10. a drive motor; 11. a top plate; 12. A reinforcing plate; 13. a high and low temperature test chamber; 14. supporting legs; 15. an inner threaded rod.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses a transformer bushing monitoring test platform.
Referring to fig. 1, an embodiment of a transformer bushing monitoring test platform provided in an embodiment of the present application includes:
the device comprises a supporting seat, a transformer bushing body, an oil level meter 3, a pressure gauge 4, a piston 7 and a driving mechanism; the transformer bushing body comprises an insulating bushing 1 and an oil conservator 2; the insulating sleeve 1 is vertically arranged on the supporting seat, and a cavity communicated with the interior of the oil conservator 2 is arranged in the insulating sleeve 1; the oil conservator 2 is arranged on the top of the insulating sleeve 1; the piston 7 is arranged in the cavity and is in sealing sliding fit with the inner wall of the cavity, and the cavity is divided into an upper cavity and a lower cavity by the piston 7; the upper chamber is internally provided with transformer oil 6; the driving mechanism is connected with the piston 7 and is used for driving the piston 7 to move up and down in the chamber; the oil level meter 3 is arranged on the oil conservator 2 and used for monitoring the oil level condition of the transformer oil 6; the pressure gauge 4 is arranged on the oil conservator 2 and used for monitoring the pressure condition in the upper chamber.
Specifically, the transformer bushing body may be an existing transformer bushing, and the lower end of the insulating bushing 1 may be mounted and fixed on the supporting seat through a flange (not shown). The monitoring device for the test can be installed on the conservator 2 through the oil filling port 5 on the conservator 2, or the oil filling port 5 on the conservator 2 is used for monitoring the oil level and the pressure condition in the insulating sleeve 1, and the monitoring device is not limited in detail, and a person skilled in the art can make appropriate changes according to the installation requirements of the monitoring device; the oil taking port 9 in this embodiment is provided at the lower end of the outer side wall of the insulating sleeve 1, and can reduce the influence on the movement path of the piston 7. The piston 7 can be a part of the piston 7 for an automobile, and the outer peripheral surface of the piston 7 is sleeved with a sealing rubber sleeve to realize sealing sliding fit between the piston 7 and the inner wall of the chamber. When the driving mechanism drives the piston 7 to move up and down, the oil level condition and the pressure condition of the transformer oil 6 in the upper chamber can be changed, and therefore a monitoring environment is provided.
According to the technical scheme, the transformer bushing body is vertically installed on the supporting seat, the piston 7 is arranged in the cavity in the insulating bushing 1 of the transformer bushing body, the piston 7 is used for dividing the cavity into the upper cavity and the lower cavity which are provided with the transformer oil 6, the piston 7 is driven to move up and down through the driving mechanism, and then the oil level condition of the transformer oil 6 is changed through the lifting movement of the piston 7, and the pressure condition in the upper cavity is changed. Can provide monitoring devices a nimble changeable and controllable experimental environment like this, manometer 4 and the oil level table 3 that corresponds the setting then can provide the monitoring result of standard, supply monitoring devices contrast usefulness. The whole monitoring device is provided with a flexible and convenient test platform, which is beneficial to the research and improvement of the monitoring device.
The above is a first embodiment of a transformer bushing monitoring test platform provided in the embodiments of the present application, and the following is a second embodiment of a transformer bushing monitoring test platform provided in the embodiments of the present application, please refer to fig. 1 specifically.
A transformer bushing monitoring test platform, comprising: the device comprises a supporting seat, a transformer bushing body, an oil level meter 3, a pressure gauge 4, a piston 7 and a driving mechanism; the transformer bushing body comprises an insulating bushing 1 and an oil conservator 2; the insulating sleeve 1 is vertically arranged on the supporting seat, and a cavity communicated with the interior of the oil conservator 2 is arranged in the insulating sleeve 1; the oil conservator 2 is arranged on the top of the insulating sleeve 1; the piston 7 is arranged in the cavity and is in sealing sliding fit with the inner wall of the cavity, and the cavity is divided into an upper cavity and a lower cavity by the piston 7; the upper chamber is internally provided with transformer oil 6; the driving mechanism is connected with the piston 7 and is used for driving the piston 7 to move up and down in the chamber; the oil level meter 3 is arranged on the oil conservator 2 and used for monitoring the oil level condition of the transformer oil 6; the pressure gauge 4 is arranged on the oil conservator 2 and used for monitoring the pressure condition in the upper chamber.
Further, the supporting base comprises a top plate 11 and a plurality of supporting legs 14; a plurality of supporting feet 14 are vertically arranged at the bottom of the top plate 11; the insulating sleeve 1 is mounted on top of the top plate 11. The supporting base can be configured as shown in fig. 1, and those skilled in the art can make appropriate changes based on the configuration, without limitation.
Further, a reinforcing plate 12 is also included; the reinforcing plate 12 is disposed below the top plate 11 and parallel to the top plate 11, and the reinforcing plate 12 is fixedly connected to each supporting leg 14. The reinforcing plate 12 can be used for increasing the overall supporting strength of the supporting seat, and a better supporting and fixing effect is achieved.
Further, the driving mechanism may include a hydraulic shaft cylinder (not shown) and a hydraulic pump (not shown) for driving the hydraulic shaft cylinder; the hydraulic shaft cylinder is vertically arranged on the top of the reinforcing plate 12 at a position right below the insulating sleeve 1, and the telescopic rod of the hydraulic shaft cylinder movably extends into the insulating sleeve 1 and is connected with the piston 7.
Particularly, when the oil level in the upper chamber needs to be increased and the pressure needs to be increased, the hydraulic shaft cylinder can be controlled through the hydraulic pump, so that the telescopic rod of the hydraulic shaft cylinder drives the piston 7 to ascend. The reinforcing plate 12 arranged above can keep a certain spacing distance with the top plate 11, so that the hydraulic shaft cylinder is convenient to mount, and the whole structure is more compact.
Of course, the driving mechanism may also include an internal threaded rod 15, an external threaded rod 8, and a driving motor 10 for driving the internal threaded rod 15 to rotate; the internal threaded rod 15 is sleeved outside the external threaded rod 8, and the internal threaded rod 15 can be vertically arranged on the supporting seat in a rotating mode; one end of the external thread rod 8 movably extends out of the internal thread rod 15 and is connected with the piston 7.
Specifically, the internal thread cavity which is in threaded fit with the external thread rod 8 is arranged in the internal thread rod 15, when the internal thread rod is used, the driving motor 10 drives the internal thread rod 15 to rotate, relative rotation between the internal thread rod 15 and the external thread rod 8 is achieved, the rotation of the internal thread rod 15 is converted into vertical movement of the external thread rod 8 through the screw rod sliding block principle, and then the external thread rod 8 is used for driving the piston 7 to move up and down. The inner threaded rod 15 may be fixed by rotating one end of the inner threaded rod 15 downward to the top plate 11 and rotatably connected to the reinforcing plate 12 through a bearing (not shown). Or the internally threaded rod 15 is pivotally connected to the top plate 11 through a bearing member. In addition, the driving motor 10 may be a common servo motor, and can realize forward and reverse rotation.
Further, the device also comprises a transmission assembly; the transmission assembly comprises a first transmission gear (not shown) and a second transmission gear (not shown); the first transmission gear is fixedly sleeved on the inner threaded rod 15; the second transmission gear is fixedly sleeved on the output shaft of the driving motor 10 and is meshed with the first transmission gear; the driving motor 10 is mounted on the reinforcing plate 12.
Specifically, the drive motor 10 is mounted on the reinforcing plate 12, and the overall mounting structure can be made more compact. The first transmission gear and the second transmission gear can be conical gears, so that transmission in a vertical state can be realized, the position distribution between the driving motor 10 and the internal thread rod 15 is more compact, and the installation space is saved.
Further, the pressure gauge 4 is a mechanical pressure gauge; the oil level gauge 3 is a mechanical oil level gauge. The pressure gauge 4 or the oil level gauge 3 adopting a mechanical structure can improve the monitoring accuracy, so that the monitoring result and the test monitoring device with the monitoring device can be more accurate.
Further, a high-low temperature test chamber 13 is also included; the supporting seat, the transformer bushing body, the oil level meter 3, the pressure gauge 4, the piston 7 and the driving mechanism are installed in the high-low temperature test box 13. High low temperature test box 13 can simulate adverse operational environment such as high temperature environment, low temperature environment, alternation damp and hot environment and high temperature damp and hot for the monitoring result is more diversified, provides more research data support, more helps monitoring devices's research to improve.
According to the technical scheme, the transformer bushing body is vertically installed on the supporting seat, the piston 7 is arranged in the cavity in the insulating bushing 1 of the transformer bushing body, the piston 7 is used for dividing the cavity into the upper cavity and the lower cavity which are provided with the transformer oil 6, the piston 7 is driven to move up and down through the driving mechanism, and then the oil level condition of the transformer oil 6 is changed through the lifting movement of the piston 7, and the pressure condition in the upper cavity is changed. Can provide monitoring devices a nimble changeable and controllable experimental environment like this, manometer 4 and the oil level table 3 that corresponds the setting then can provide the monitoring result of standard, supply monitoring devices contrast usefulness. The whole monitoring device is provided with a flexible and convenient test platform, which is beneficial to the research and improvement of the monitoring device.
While the transformer bushing monitoring test platform provided in the present application is described in detail above, for a person skilled in the art, according to the ideas of the embodiments of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present description should not be construed as limiting the present application.

Claims (10)

1. The utility model provides a transformer bushing monitoring test platform which characterized in that includes: the device comprises a supporting seat, a transformer bushing body, an oil level meter, a pressure gauge, a piston and a driving mechanism;
the transformer bushing body comprises an insulating bushing and an oil conservator;
the insulating sleeve is vertically arranged on the supporting seat, and a cavity communicated with the inside of the oil conservator is arranged in the insulating sleeve;
the oil conservator is arranged on the top of the insulating sleeve;
the piston is arranged in the cavity and is in sealing sliding fit with the inner wall of the cavity, and the cavity is divided into an upper cavity and a lower cavity by the piston;
transformer oil is arranged in the upper chamber;
the driving mechanism is connected with the piston and is used for driving the piston to move up and down in the chamber;
the oil level gauge is arranged on the oil conservator and used for monitoring the oil level condition of the transformer oil;
the pressure gauge is installed on the oil conservator and used for monitoring the pressure condition in the upper chamber.
2. The transformer bushing monitoring test platform of claim 1, wherein the supporting base comprises a top plate and a plurality of supporting legs;
the supporting legs are vertically arranged at the bottom of the top plate;
the insulating sleeve is mounted on the top of the top plate.
3. The transformer bushing monitoring test platform of claim 2, further comprising a reinforcing plate;
the reinforcing plate is arranged below the top plate and parallel to the top plate, and the reinforcing plate is fixedly connected with the supporting legs.
4. The transformer bushing monitoring test platform according to claim 3, wherein the driving mechanism comprises a hydraulic shaft cylinder and a hydraulic pump for driving the hydraulic shaft cylinder;
the hydraulic shaft cylinder is vertically arranged on the top of the reinforcing plate at a position right below the insulating sleeve, and a telescopic rod of the hydraulic shaft cylinder movably extends into the insulating sleeve and is connected with the piston.
5. The transformer bushing monitoring and testing platform of claim 3, wherein the driving mechanism comprises an internal threaded rod, an external threaded rod and a driving motor for driving the internal threaded rod to rotate;
the internal threaded rod is sleeved outside the external threaded rod, and the internal threaded rod is vertically and rotatably arranged on the supporting seat;
one end of the external threaded rod movably extends out of the internal threaded rod and is connected with the piston.
6. The transformer bushing monitoring and testing platform of claim 5, wherein one end of the inner threaded rod extends downward from the top plate and is rotatably connected with the reinforcing plate through a bearing member.
7. The transformer bushing monitoring and testing platform of claim 5, wherein the inner threaded rod is pivotally connected to the top plate via a bearing member.
8. The transformer bushing monitoring test platform of claim 6 or 7, further comprising a transmission assembly;
the transmission assembly comprises a first transmission gear and a second transmission gear;
the first transmission gear is fixedly sleeved on the inner threaded rod;
the second transmission gear is fixedly sleeved on the output shaft of the driving motor and is meshed with the first transmission gear;
the driving motor is installed on the reinforcing plate.
9. The transformer bushing monitoring test platform according to claim 1, wherein the pressure gauge is a mechanical pressure gauge;
the oil level gauge is a mechanical oil level gauge.
10. The transformer bushing monitoring test platform of claim 1, further comprising a high and low temperature test chamber;
the supporting seat, the transformer bushing body, the oil level gauge, the pressure gauge, the piston and the driving mechanism are installed in the high-low temperature test box.
CN201922106240.0U 2019-11-29 2019-11-29 Transformer bushing monitoring test platform Active CN211426688U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922106240.0U CN211426688U (en) 2019-11-29 2019-11-29 Transformer bushing monitoring test platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922106240.0U CN211426688U (en) 2019-11-29 2019-11-29 Transformer bushing monitoring test platform

Publications (1)

Publication Number Publication Date
CN211426688U true CN211426688U (en) 2020-09-04

Family

ID=72286685

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922106240.0U Active CN211426688U (en) 2019-11-29 2019-11-29 Transformer bushing monitoring test platform

Country Status (1)

Country Link
CN (1) CN211426688U (en)

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