CN110837029A - Transformer partial discharge induction voltage-resistant box and use method thereof - Google Patents
Transformer partial discharge induction voltage-resistant box and use method thereof Download PDFInfo
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- CN110837029A CN110837029A CN201911128145.9A CN201911128145A CN110837029A CN 110837029 A CN110837029 A CN 110837029A CN 201911128145 A CN201911128145 A CN 201911128145A CN 110837029 A CN110837029 A CN 110837029A
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- pressure
- resistant box
- partial discharge
- box
- transformer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thermal Sciences (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a transformer partial discharge induction pressure-resistant box and a use method thereof, wherein the transformer partial discharge induction pressure-resistant box comprises a pressure-resistant box, the bottom end of the pressure-resistant box is connected with wheels, the surface of the pressure-resistant box is fixedly connected with a wiring panel, the back of the pressure-resistant box is fixedly connected with an output end and a communication port, two sides of the pressure-resistant box are respectively provided with a heat dissipation hole, a heat dissipation fan and a filter screen are arranged in each heat dissipation hole, a mounting plate is arranged below the inner cavity of the pressure-resistant box, the bottom end of the mounting plate is fixedly connected with a telescopic rod, the bottom end of the telescopic rod is fixedly connected; the top end of the mounting plate is fixedly connected with an embedded computer, a system power supply module, a wiring panel and a measuring module, and the measuring module comprises a partial discharge-free frequency conversion test module, a pure capacitance voltage division module and a partial discharge test module. The transformer partial discharge induction voltage-withstanding box and the use method thereof can improve the transformer test efficiency and the safety level of a power grid.
Description
Technical Field
The invention relates to the technical field of transformer detection, in particular to a transformer partial discharge induction voltage-withstanding box and a using method thereof.
Background
At present, because the equipment is many, the weight is heavy, and is bulky to distribution transformer's on-the-spot partial discharge test and response withstand voltage test, develop at every turn and need invest in a great deal of equipment, a large amount of manpower, material resources, caused experimental inconvenient, the condition that the frequency is not high is developed in the experiment, complicated circuit need be connected to a large amount of equipment, wastes time and energy. In addition, the existing partial discharge induction voltage withstand device is easy to damage internal elements due to collision or vibration when in use, and the service life of the device is shortened.
In addition, different test projects of the voltage transformer and the transformer are completed by various special test instruments, generally, one instrument can only adapt to one test project, so that a plurality of test instruments need to be carried during field test, the test instruments need to be frequently replaced, test wiring needs to be changed, some test projects need to be externally provided with test power supplies and other equipment, a measurement system needs to be established on the field, inconvenience is brought to test work, and test efficiency is seriously influenced. Besides, the functions of the instrument are single, the formats of output results of test instruments of different manufacturers are not uniform, and a lot of troubles are caused to the analysis, arrangement and filing of data in the later period.
Disclosure of Invention
The invention aims to provide a transformer partial discharge induction voltage-withstanding box and a using method thereof, and aims to solve the technical problems of multiple instrument parts, heavy weight, inconvenience in test, low test efficiency, unsafe operation and short service life of the traditional partial discharge induction voltage-withstanding device.
To achieve the purpose, on one hand, the invention adopts the following technical scheme:
a transformer partial discharge induction pressure-resistant box comprises a pressure-resistant box, wherein wheels are connected to the bottom end of the pressure-resistant box, a wiring panel is fixedly connected to the surface of the pressure-resistant box, an output end and a communication port are fixedly connected to the back of the pressure-resistant box, heat dissipation holes are formed in the two sides of the pressure-resistant box, a heat dissipation fan and a filter screen are installed in each heat dissipation hole, a mounting plate is arranged below an inner cavity of the pressure-resistant box, a telescopic rod is fixedly connected to the bottom end of the mounting plate, the bottom end of the telescopic rod is fixedly connected with the pressure-resistant box, a return spring is sleeved on the outer side of the telescopic rod, the bottom end of the return spring is fixedly connected with the pressure-resistant box;
the top fixedly connected with embedded computer of mounting panel, system power module, wiring panel and measuring module, measuring module is including not having partial discharge frequency conversion test module, pure electric capacity pressure divider module and partial discharge test module.
In one embodiment, the number of the wheels is four, the four wheels are distributed in a rectangular shape, and the wheels are universal wheels.
In one embodiment, the heat dissipation fan is positioned on the inner side of the filter screen, and the aperture of the meshes of the filter screen is 1 mm.
In one embodiment, the cooling fan, the embedded computer, the wiring panel and the measuring module are all connected with the system power supply module, and the embedded computer and the measuring module are all connected with the output end and the communication port.
In one embodiment, the embedded computer is configured with information management software and dedicated instrumentation software.
In one embodiment, the mounting plate is movably connected with a pulley along the circumferential direction, and the pulley is in rolling connection with the pressure resistant box.
On the other hand, the invention also provides a use method of the transformer partial discharge induction voltage-resistant box, which comprises the following steps:
a: connecting: pushing the pressure resistant box, moving the pressure resistant box by using wheels at the bottom, pushing the pressure resistant box to the vicinity of the tested transformer, and connecting the pressure resistant box with the tested transformer through an output end and a communication port;
b: damping: when the pressure-resistant box moves, the mounting plate and the pressure-resistant box move relatively under the action of the elastic force of the return spring to absorb shock;
c: heat dissipation: starting the heat dissipation fans at the two ends of the pressure resistant box, wherein the fan blades in the two heat dissipation fans rotate in the same direction, so that airflow enters and exits at the same time to ventilate and dissipate heat;
d: and (3) testing: the measurement module is controlled by information management software and special measurement and control software configured by an embedded computer, and a partial discharge test, an induction withstand voltage test and a non-partial discharge frequency conversion test are carried out on the tested transformer.
The invention has the following beneficial effects:
(1) the invention arranges the power supply, the measuring module and the control system in the pressure-resistant box, can carry out various tests of a partial discharge test, an induction pressure-resistant test and a partial discharge-free frequency conversion test by structure integration and software centralized control, realizes intelligent and multifunctional measurement, not only can reduce the number of testing equipment instruments, but also can reduce the field labor intensity, lead the testing work to be more efficient and reliable, have higher automation degree of the instruments, reduce field wiring, avoid the problems of inconsistent data report formats of different instruments of different manufacturers and the like, solve the problems of more instruments, heavy weight and time and labor consumption of the test of the transformer, can finish a plurality of test items by one instrument, automatically record data and greatly improve the testing efficiency of the transformer.
(2) The wheels are arranged, so that the device is convenient to move and carry, the working difficulty is reduced, and the working efficiency is improved.
(3) The invention has the advantages that through the arrangement of the heat dissipation holes and the heat dissipation fan, the heat dissipation effect is achieved, the internal elements of the pressure resistant box are prevented from being damaged due to overheating, the safe operation of the power grid can be effectively ensured, the safety level of the power grid is improved, and major accidents are avoided.
(4) The invention has the advantages that the mounting plate, the telescopic rod and the return spring are arranged, so that the shock absorption effect is realized, the elements in the pressure-resistant box can be prevented from being impacted and vibrated, the internal elements are protected, and the service life of the elements can be prolonged.
Drawings
FIG. 1 is a schematic view of the structure of a pressure-resistant tank in one embodiment;
FIG. 2 is a rear view of the pressure resistant tank in one embodiment;
FIG. 3 is a cross-sectional view of a pressure resistant tank in one embodiment;
FIG. 4 is a schematic diagram showing the connection of the internal components of the pressure-resistant tank in one embodiment.
Description of reference numerals:
1. a pressure resistant box; 2. a wheel; 3. an output end and a communication port; 4. heat dissipation holes; 5. a heat radiation fan; 6. a filter screen; 7. mounting a plate; 8. a telescopic rod; 9. a return spring; 10. a pulley; 11. an embedded computer; 12. a system power supply module; 13. a wiring panel; 14. a measurement module; 15. a partial discharge-free variable frequency test module; 16. a pure capacitance voltage division module; 17. a partial discharge test module; 18. a tested transformer; 19. information management software; 20. special measurement and control software.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1 to 4, the transformer partial discharge induction pressure-resistant box of an embodiment includes a pressure-resistant box 1, wheels 2 are connected to a bottom end of the pressure-resistant box 1, a wiring panel 13 is fixedly connected to a surface of the pressure-resistant box 1, an output end and a communication port 3 are fixedly connected to a back of the pressure-resistant box 1, heat dissipation holes 4 are formed in both sides of the pressure-resistant box 1, a heat dissipation fan 5 and a filter screen 6 are installed in the heat dissipation holes 4, a mounting plate 7 is disposed below an inner cavity of the pressure-resistant box 1, a telescopic rod 8 is fixedly connected to a bottom end of the mounting plate 7, a bottom end of the telescopic rod 8 is fixedly connected to the pressure-resistant box 1, a return spring 9 is sleeved outside the telescopic rod 8, a bottom end of the return spring 9 is fixedly connected to the pressure-resistant box 1, a top end of the return spring 9 is fixedly connected to the mounting plate 7, the telescopic rod 8 and the return spring 9 are disposed, so as to, the protective effect is achieved on the element, and the service life of the element is prolonged.
The top end of the mounting plate 7 is fixedly connected with an embedded computer 11, a system power supply module 12, a wiring panel 13 and a measuring module 14, and the measuring module 14 comprises a non-partial discharge frequency conversion test module 15, a pure capacitance voltage division module 16 and a partial discharge test module 17. The embedded computer 11 is configured with information management software 19 and special measurement and control software 20, the cooling fan 5, the embedded computer 11, the wiring panel 13 and the measurement module 14 are all connected with the system power module 12, and the embedded computer 11 and the measurement module 14 are all connected with the output end and the communication port 3.
In an embodiment, the quantity of wheel 2 is four, and four wheels 2 are the rectangle and distribute, and wheel 2 is the universal wheel, through setting up wheel 2, can make things convenient for device's removal and transport, reduces the work degree of difficulty, improves test efficiency.
In one embodiment, cooling fan 5 is located the inboard of filter screen 6, and the mesh aperture of filter screen 6 is 1mm, through setting up louvre 4 and cooling fan 5, can play radiating effect, avoids the overheated damage of withstand voltage case 1 internal component, helps improving component life, and can improve experimental security.
In one embodiment, the pulley 10 is movably connected to the mounting plate 7 along the circumferential direction, the pulley 10 is in rolling connection with the pressure resistant box 1, and the pulley 10 is arranged, so that the friction force between the mounting plate 7 and the pressure resistant box 1 can be reduced, and the sensitivity of the mounting plate 7 in buffering is improved.
On the other hand, the invention also provides a use method of the transformer partial discharge induction voltage-resistant box, which comprises the following steps:
a: connecting: the pressure resistant box 1 is pushed, the wheels 2 at the bottom are used for moving, the pressure resistant box 1 is pushed to the position near the tested transformer 18, and the pressure resistant box is connected with the tested transformer 18 through the output end and the communication port 3.
B: damping: when the pressure-resistant box 1 moves, the mounting plate 7 and the pressure-resistant box 1 move relatively under the action of the elastic force of the return spring 9, and the shock is absorbed.
C: heat dissipation: the heat radiation fans 5 at the two ends of the pressure resistant box 1 are started, and the fan blades in the two heat radiation fans 5 rotate in the same direction, so that the air flow enters and exits at the same time, and the ventilation and heat radiation are performed.
D: and (3) testing: the information management software 19 and the special measurement and control software 20 configured by the embedded computer 11 are used for controlling the measurement module 14, and a partial discharge test, an induction voltage withstand test and a non-partial discharge frequency conversion test are carried out on the tested transformer 18.
The transformer partial discharge induction voltage-resistant box and the use method thereof have the following beneficial effects:
(1) the invention arranges the power supply, the measuring module and the control system in the pressure-resistant box, can carry out various tests of a partial discharge test, an induction pressure-resistant test and a partial discharge-free frequency conversion test by structure integration and software centralized control, realizes intelligent and multifunctional measurement, not only can reduce the number of testing equipment instruments, but also can reduce the field labor intensity, lead the testing work to be more efficient and reliable, have higher automation degree of the instruments, reduce field wiring, avoid the problems of inconsistent data report formats of different instruments of different manufacturers and the like, solve the problems of more instruments, heavy weight and time and labor consumption of the test of the transformer, can finish a plurality of test items by one instrument, automatically record data and greatly improve the testing efficiency of the transformer.
(2) The wheels are arranged, so that the device is convenient to move and carry, the working difficulty is reduced, and the working efficiency is improved.
(3) The invention has the advantages that through the arrangement of the heat dissipation holes and the heat dissipation fan, the heat dissipation effect is achieved, the internal elements of the pressure resistant box are prevented from being damaged due to overheating, the safe operation of the power grid can be effectively ensured, the safety level of the power grid is improved, and major accidents are avoided.
(4) The invention has the advantages that the mounting plate, the telescopic rod and the return spring are arranged, so that the shock absorption effect is realized, the elements in the pressure-resistant box can be prevented from being impacted and vibrated, the internal elements are protected, and the service life of the elements can be prolonged.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. The utility model provides a transformer partial discharge induction pressure-resistant box, includes pressure-resistant box (1), its characterized in that, the bottom of pressure-resistant box (1) is connected with wheel (2), the fixed surface of pressure-resistant box (1) is connected with wiring panel (13), the back fixedly connected with output and communication port (3) of pressure-resistant box (1), louvre (4) have all been seted up to the both sides of pressure-resistant box (1), install cooling fan (5) and filter screen (6) in louvre (4), the inner chamber below of pressure-resistant box (1) is equipped with mounting panel (7), the bottom fixedly connected with telescopic link (8) of mounting panel (7), the bottom and the pressure-resistant box (1) fixed connection of telescopic link (8), the outside of telescopic link (8) is cup jointed back force spring (9), the bottom and the pressure-resistant box (1) fixed connection of back force spring (9), the top end of the return spring (9) is fixedly connected with the mounting plate (7);
the top fixedly connected with embedded computer (11), system power module (12), wiring panel (13) and measuring module (14) of mounting panel (7), measuring module (14) are including not having partial discharge frequency conversion test module (15), pure electric capacity pressure divider module (16) and partial discharge test module (17).
2. The transformer partial discharge induction voltage-withstanding box according to claim 1, wherein the number of the wheels (2) is four, four of the wheels (2) are distributed in a rectangular shape, and the wheels (2) are universal wheels.
3. The transformer partial discharge induction voltage-withstanding box according to claim 1, wherein the heat dissipation fan (5) is located inside the filter screen (6), and the aperture of the mesh of the filter screen (6) is 1 mm.
4. The transformer partial discharge induction voltage-tolerant box according to claim 1, wherein the cooling fan (5), the embedded computer (11), the wiring panel (13) and the measurement module (14) are all connected with a system power module (12), and the embedded computer (11) and the measurement module (14) are all connected with the output end and the communication port (3).
5. The transformer partial discharge induction withstand voltage box according to claim 1, characterized in that the embedded computer (11) is configured with information management software (19) and dedicated measurement and control software (20).
6. The transformer partial discharge induction voltage-resistant box according to claim 1, characterized in that the mounting plate (7) is movably connected with a pulley (10) along the circumferential direction, and the pulley (10) is in rolling connection with the voltage-resistant box (1).
7. A use method of a transformer partial discharge induction voltage-withstanding box is characterized by comprising the following steps:
a: connecting: pushing the pressure resistant box (1), moving by using the wheels (2) at the bottom, pushing the pressure resistant box (1) to the vicinity of the tested transformer (18), and connecting the pressure resistant box (1) with the tested transformer (18) through the output end and the communication port (3);
b: damping: when the pressure-resistant box (1) moves, the mounting plate (7) and the pressure-resistant box (1) move relatively under the action of the elastic force of the return spring (9) to absorb shock;
c: heat dissipation: starting the heat radiation fans (5) at two ends of the pressure resistant box (1), wherein fan blades in the two heat radiation fans (5) rotate in the same direction, so that air flows are fed in and discharged out at the same time, and ventilation and heat radiation are performed;
d: and (3) testing: the information management software (19) and the special measurement and control software (20) configured by the embedded computer (11) are used for controlling the measurement module (14) to perform a partial discharge test, an induction withstand voltage test and a non-partial discharge frequency conversion test on the tested transformer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911128145.9A CN110837029A (en) | 2019-11-18 | 2019-11-18 | Transformer partial discharge induction voltage-resistant box and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911128145.9A CN110837029A (en) | 2019-11-18 | 2019-11-18 | Transformer partial discharge induction voltage-resistant box and use method thereof |
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| Publication Number | Publication Date |
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| CN110837029A true CN110837029A (en) | 2020-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911128145.9A Pending CN110837029A (en) | 2019-11-18 | 2019-11-18 | Transformer partial discharge induction voltage-resistant box and use method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201355380Y (en) * | 2009-02-12 | 2009-12-02 | 武汉华瑞测控科技有限公司 | Intelligent field high-pressure test vehicle |
| CN201754170U (en) * | 2010-08-23 | 2011-03-02 | 上海思创电器设备有限公司 | On-site high voltage dielectric loss test vehicle for power equipment |
| CN101986166A (en) * | 2010-08-23 | 2011-03-16 | 中国电力科学研究院 | Test vehicle for partial discharge of power equipment on site |
| CN101986163A (en) * | 2010-08-23 | 2011-03-16 | 上海思创电器设备有限公司 | Field high-voltage dielectric-loss test vehicle for power equipment |
| CN201800614U (en) * | 2010-08-23 | 2011-04-20 | 中国电力科学研究院 | On-site partial discharge test vehicle for power equipment |
| CN205594125U (en) * | 2016-03-11 | 2016-09-21 | 国网江西省电力科学研究院 | Vehicular transformer is responded to withstand voltagely and partial discharge test device for a long time |
| CN106965735A (en) * | 2017-04-19 | 2017-07-21 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of wing opens expansion partial discharge pressure test car |
| CN208172159U (en) * | 2018-05-28 | 2018-11-30 | 武汉千伏电力设备有限公司 | A kind of high pressure resistant AC frequency conversion series resonance test device |
-
2019
- 2019-11-18 CN CN201911128145.9A patent/CN110837029A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201355380Y (en) * | 2009-02-12 | 2009-12-02 | 武汉华瑞测控科技有限公司 | Intelligent field high-pressure test vehicle |
| CN201754170U (en) * | 2010-08-23 | 2011-03-02 | 上海思创电器设备有限公司 | On-site high voltage dielectric loss test vehicle for power equipment |
| CN101986166A (en) * | 2010-08-23 | 2011-03-16 | 中国电力科学研究院 | Test vehicle for partial discharge of power equipment on site |
| CN101986163A (en) * | 2010-08-23 | 2011-03-16 | 上海思创电器设备有限公司 | Field high-voltage dielectric-loss test vehicle for power equipment |
| CN201800614U (en) * | 2010-08-23 | 2011-04-20 | 中国电力科学研究院 | On-site partial discharge test vehicle for power equipment |
| CN205594125U (en) * | 2016-03-11 | 2016-09-21 | 国网江西省电力科学研究院 | Vehicular transformer is responded to withstand voltagely and partial discharge test device for a long time |
| CN106965735A (en) * | 2017-04-19 | 2017-07-21 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of wing opens expansion partial discharge pressure test car |
| CN208172159U (en) * | 2018-05-28 | 2018-11-30 | 武汉千伏电力设备有限公司 | A kind of high pressure resistant AC frequency conversion series resonance test device |
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Application publication date: 20200225 |