CN112162180B - Electric power test box and test method thereof - Google Patents
Electric power test box and test method thereof Download PDFInfo
- Publication number
- CN112162180B CN112162180B CN202010983951.0A CN202010983951A CN112162180B CN 112162180 B CN112162180 B CN 112162180B CN 202010983951 A CN202010983951 A CN 202010983951A CN 112162180 B CN112162180 B CN 112162180B
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- Prior art keywords
- test box
- threaded rod
- power test
- box
- fixedly connected
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- 238000012360 testing method Methods 0.000 title claims abstract description 73
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 238000005498 polishing Methods 0.000 claims abstract description 40
- 238000003860 storage Methods 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses an electric power test box and a test method thereof, and relates to the technical field of electric power test, the electric power test box comprises a test box body, the upper surface of the test box body is rotationally connected with a box cover, the front end surface of the test box body is provided with a storage groove, the lower inner wall of the storage groove is slidingly connected with a polishing box, the front end surface of the polishing box is provided with a polishing groove, two sides of the inner wall of the upper end of the polishing box are rotationally connected with a threaded rod which is horizontally arranged, two symmetrically distributed mounting plates are arranged on the threaded rod, and the mounting plates penetrate through the threaded rod and are in threaded connection with the threaded rod.
Description
Technical Field
The invention relates to the technical field of power testing, in particular to a power testing box and a testing method thereof.
Background
The electric power test specifically comprises the step of testing the insulation performance of equipment, the running state of the equipment and the like, and the step of performing an alternating current withstand voltage test when the insulation withstand voltage of the electrical equipment is tested. It is also used to test the capability of insulation to withstand operation overvoltage, temporary overvoltage, for electrical equipment of 220kv and below. When in test, the test sample is connected into a test loop according to the regulation, the voltage is gradually increased to the rated power frequency withstand voltage value regulated by the standard, the voltage is maintained for 1min, then the voltage is rapidly and uniformly reduced to zero, and in the regulated time, the insulation of the test sample is not broken through or the surface flashover is not generated, so that the test is considered to be passed. The voltage applied by the power frequency alternating current test is higher than the rated working voltage of the electrical equipment, and a plurality of insulation defects can be found through the test, so that the method is more effective to local defects.
However, before the test, the connector needs to be abutted, however, the surface of the connector is easy to oxidize, and poor contact and the like are caused during the test, so that the test effect is affected, the recorded data is inaccurate, and the normal use of the equipment is affected.
For this purpose, we propose a power test box and a test method thereof.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems in the prior art, the invention aims to provide the electric power test box and the test method thereof, which are used for solving the problems that the surface of a joint is easy to oxidize, poor contact and the like are caused during the test, the test effect is affected, recorded data is inaccurate, and the normal use of equipment is affected.
2. Technical proposal
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an electric power test box and test method thereof, includes the test box body, the upper surface of test box body rotates and is connected with the case lid, the preceding terminal surface of test box body has been seted up and has been accomodate the groove, the lower inner wall sliding connection of accomodate groove grinds the case, the preceding terminal surface of grinding the case has been seted up and has been ground the groove, and the upper end inner wall both sides of grinding the case rotate and be connected with the threaded rod that the level set up, be equipped with two mounting panels of symmetric distribution on the threaded rod, the mounting panel runs through the threaded rod and with threaded rod threaded connection, and the screw hole screw thread opposite direction on two mounting panels, and the one end of threaded rod runs through the inner wall of grinding the case and fixedly connected with turning handle, when we rotate the turning handle, the turning handle can drive the threaded rod and because the space problem of grinding the case, thereby spacing to the mounting panel, the threaded rod of rotation can drive two mounting panels to be close to each other or keep away from, thereby the utility model provides a convenient polishing to different joint surfaces, the practicality of device has been promoted, the lower fixed surface of mounting panel has the rotation motor, the output of rotation motor passes through shaft coupling fixedly connected with dwang, the bottom fixedly connected with of dwang polishes the head, and the logical groove has been seted up to the preceding terminal surface bottom of polishing case, sliding connection has a dirt receiving box in the logical groove, before the test, we are to drawing out the case of will polishing, under the drive of rotation motor, can drive the head rotation of polishing through the dwang, we can stretch into the polishing inslot with the joint this moment, utilize the polishing head to polish it, thereby polish the oxide on its surface clean, reduce the production of contact fault condition, and because the setting of logical groove and dirt receiving box, we can catch the impurity that falls down, avoid it to directly fall down and cause the pollution, and we can empty through taking out dirt receiving box, thereby facilitating the next collection and use.
As a further scheme of the invention: the pull block is fixedly connected to the top end of the front end face of the polishing box, so that the polishing box is conveniently pulled and pushed. The practicability of the device is improved.
As a further scheme of the invention: the storage tank has been seted up to the preceding terminal surface of test box body, has placed the show board in the storage tank to we can fill in some data that need be recorded in the show board, make things convenient for operating personnel to use, and the outside four corners of storage tank all rotates to be connected with the stopper, and the bottom both sides of storage tank also rotate to be connected with the stopper, can carry out spacingly to show board and case of polishing through rotating the stopper, avoid its natural roll-off, promoted the security performance of device.
As a further scheme of the invention: the inner end surface of the box cover is fixedly provided with the elastic cloth bag, so that small tools for testing can be arranged in the elastic cloth bag, and the box cover is convenient for operators to use.
As a further scheme of the invention: the inner end face fixedly connected with magic subsides pin thread of case lid, elasticity sack adhesion is on the magic subsides pin thread to can carry out the adhesion to the surface of elasticity sack, avoid the object roll-off, promote the security performance of device.
As a further scheme of the invention: the rubber pad is fixedly connected with the four corners of the lower surface of the test box body, so that the friction force between the device and the contact surface is improved, the stability of the device is further improved, the rubber pad also has a certain buffer performance, the noise pollution caused by vibration and ground impact of the device can be reduced while the shaking of the device is reduced, and the practicability of the device is improved.
As a further scheme of the invention: the operation steps are as follows:
step one, connecting a power connecting wire with a corresponding plug on a power test box
Step two, starting a power test box to electrify the connected power connecting wire;
and thirdly, testing the earth resistance value by adjusting the current and the displayed recorded temperature, and finally recording the tested structure.
Compared with the prior art, the invention has the beneficial effects that:
1. before testing, the polishing box is pulled out, the polishing head is driven to rotate by the rotating rod under the drive of the rotating motor, at the moment, the connector can extend into the polishing groove, and the connector is polished by the polishing head, so that oxides on the surface of the connector are polished cleanly, and the occurrence of poor contact condition is reduced.
2. According to the invention, the rotating handle can drive the threaded rod to rotate, and due to the space problem of the polishing box, the mounting plates are limited, and the rotating threaded rod can drive the two mounting plates to be close to or far away from each other, so that polishing of different joint surfaces is facilitated, the practicability of the device is improved, due to the arrangement of the through groove and the dirt collecting box, the falling impurities can be collected, the pollution caused by the direct falling of the falling impurities is avoided, and the dirt collecting box can be taken out for dumping, so that the next collection and use are facilitated.
3. According to the invention, the elastic cloth bag is fixedly arranged on the inner end surface of the box cover, so that a plurality of small tools for testing can be arranged in the elastic cloth bag, the use by operators is facilitated, the inner end surface of the box cover is fixedly connected with the hook and loop fastener, and the elastic cloth bag is adhered to the hook and loop fastener, so that the surface of the elastic cloth bag can be adhered, the object is prevented from sliding out, and the safety performance of the device is improved.
Drawings
FIG. 1 is a schematic diagram of a power test box and a testing method thereof;
FIG. 2 is an enlarged schematic view of the area A in FIG. 1;
FIG. 3 is a schematic diagram of a front view of a power test box and a polishing box in a test method thereof;
fig. 4 is an enlarged schematic view of the structure of the region B in fig. 1.
In the figure: 1. a test box body; 2. polishing the box; 3. a dirt receiving box; 4. a through groove; 5. a storage groove; 6. a storage tank; 7. an elastic cloth bag; 8. a case cover; 9. a hook and loop fastener male buckle; 10. a rotating lever; 11. grinding the groove; 12. polishing head; 13. pulling blocks; 14. a rotating motor; 15. a rotating handle; 16. a mounting plate; 17. a threaded rod; 18. a display board; 19. and a limiting block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, in the embodiment of the invention, an electric power test box and a test method thereof, the electric power test box comprises a test box body 1, the upper surface of the test box body 1 is rotationally connected with a box cover 8, the front end surface of the test box body 1 is provided with a containing groove 5, the lower inner wall of the containing groove 5 is slidingly connected with a polishing box 2, the front end surface of the polishing box 2 is provided with a polishing groove 11, two sides of the inner wall of the upper end of the polishing box 2 are rotationally connected with a threaded rod 17 which is horizontally arranged, two symmetrically distributed mounting plates 16 are arranged on the threaded rod 17, the mounting plates 16 penetrate through the threaded rod 17 and are in threaded connection with the threaded rod 17, the threaded holes on the two mounting plates 16 are opposite in thread direction, one end of the threaded rod 17 penetrates through the inner wall of the polishing box 2 and is fixedly connected with a rotating handle 15, when the rotating handle 15 is rotated, and the rotating handle 15 drives the threaded rod 17 to rotate, and due to the space problem of the polishing box 2, the rotating threaded rod 17 drives the two mounting plates 16 to approach (or separate) each other, thereby facilitating polishing of different joint surfaces, the practicability of the polishing device is improved, a motor 16 is fixedly connected with the bottom end surface of the polishing box 10 through the rotating box 10, and the output end surface of the motor 16 is fixedly connected with the rotating box 4, and the rotating end connector 4 is fixedly connected with the end surface of the polishing box 4.
Before testing, we will draw out the case 2 of polishing, under the drive of rotating motor 14, can drive the rotation of polishing head 12 through dwang 10, at this moment we can stretch into the joint and polish in the groove 11, utilize the polishing head to polish it, thereby clean the oxide on its surface, reduce the production of contact failure condition, and we can rotate through rotating handle 15, handle 15 can drive threaded rod 17 and rotate, and because the space problem of polishing case 2, thereby spacing mounting panel 16, pivoted threaded rod 17 can drive two mounting panels 16 and be close to (or keep away from) each other, thereby conveniently polish different joint surfaces, the practicality of device has been promoted, and because of the setting of logical groove 4 and dirt receiving box 3, we can catch the impurity that falls, avoid it directly to fall and cause the pollution, and we can empty through taking out dirt receiving box 3, thereby the convenience is collected the use next time.
The pull block 13 is fixedly connected to the top end of the front end face of the polishing box 2, so that the polishing box 2 can be conveniently pulled and pushed. The practicability of the device is improved.
The storage tank 6 has been seted up to the preceding terminal surface of test box body 1, has placed show board 18 in the storage tank 6 to we can fill in some data that need be recorded in show board 18, make things convenient for operating personnel to use, and the outside four corners of storage tank 6 all rotates and is connected with stopper 19, and the bottom both sides of accomodating groove 5 also rotate and be connected with stopper 19, can carry out spacingly to show board 18 and case 2 of polishing through rotating stopper 19, avoid its natural roll-off, promoted the security performance of device.
The inner end face fixed mounting of case lid 8 has elasticity sack 7 to can pack into the little instrument of some tests in elasticity sack 7, make things convenient for operating personnel to use, and the inner end face fixedly connected with magic subsides pin thread 9 of case lid 8, elasticity sack 7 adhesion is on magic subsides pin thread 9, thereby can carry out the adhesion to the surface of elasticity sack 7, avoid the object roll-off, promoted the security performance of device.
The rubber pad is fixedly connected with four corners of the lower surface of the test box body 1, so that the friction force between the device and the contact surface is improved, the stability of the device is improved, the rubber pad also has certain buffer performance, the noise pollution caused by vibration and ground impact of the device can be reduced while the shaking of the device is reduced, and the practicability of the device is improved.
The operation steps are as follows:
step one, connecting a power connecting wire with a corresponding plug on a power test box 1
Step two, starting the power test box 1 to electrify the connected power connecting wire;
and thirdly, testing the earth resistance value by adjusting the current and the displayed recorded temperature, and finally recording the tested structure.
The power supply interface of the power consumption element is connected with the power supply system through a switch (not shown) and a wire (not shown), so that the control of the power consumption element is realized, wherein the related circuits and control are all known in the prior art and are not repeated herein.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The utility model provides an electric power test box, including test box body (1), a serial communication port, the upper surface rotation of test box body (1) is connected with case lid (8), accomodate groove (5) have been seted up to the preceding terminal surface of test box body (1), lower inner wall sliding connection of accomodate groove (5) grinds case (2), grind groove (11) have been seted up to the preceding terminal surface of case (2), and the upper end inner wall both sides of grinding case (2) rotate threaded rod (17) that are connected with the level setting, be equipped with mounting panel (16) of two symmetric distributions on threaded rod (17), mounting panel (16) run through threaded rod (17) and with threaded rod (17) threaded connection, and the screw hole screw thread direction on two mounting panels (16) is opposite, and the one end of threaded rod (17) runs through the inner wall of grinding case (2) and fixedly connected with rotating handle (15), the lower surface fixed mounting of mounting panel (16) has rotation motor (14), the output of rotation motor (14) is through shaft coupling fixedly connected with dwang (10), the bottom fixedly connected with of dwang (10) grinds first (12) to the bottom of grinding case (2) is equipped with dirt-free from the inner slide (4) of the front end (4).
2. A power test box according to claim 1, characterized in that the front end surface top of the polishing box (2) is fixedly connected with a pull block (13).
3. The electric power test box according to claim 1, wherein the front end face of the test box body (1) is provided with a storage groove (6), a display plate (18) is placed in the storage groove (6), limiting blocks (19) are rotatably connected to four corners on the outer side of the storage groove (6), and limiting blocks (19) are rotatably connected to two sides of the bottom end of the storage groove (5).
4. A power test box according to claim 1, characterized in that the inner end surface of the box cover (8) is fixedly provided with an elastic cloth bag (7).
5. The electric power test box according to claim 4, wherein the inner end surface of the box cover (8) is fixedly connected with a velcro male buckle (9), and the elastic cloth bag (7) is adhered to the velcro male buckle (9).
6. The electric power test box according to claim 1, wherein rubber pads are fixedly connected to four corners of the lower surface of the test box body (1).
7. A method of testing an electrical power test box according to any one of claims 1-6, characterized in that the steps of operation thereof are as follows:
step one, connecting a power connecting wire with a corresponding plug on a power test box (1);
step two, starting a power test box (1) to electrify the connected power connecting wire;
and thirdly, testing the earth resistance value by adjusting the current and the displayed recorded temperature, and finally recording the tested structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983951.0A CN112162180B (en) | 2020-09-18 | 2020-09-18 | Electric power test box and test method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010983951.0A CN112162180B (en) | 2020-09-18 | 2020-09-18 | Electric power test box and test method thereof |
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| Publication Number | Publication Date |
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| CN112162180A CN112162180A (en) | 2021-01-01 |
| CN112162180B true CN112162180B (en) | 2024-03-26 |
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| CN202010983951.0A Active CN112162180B (en) | 2020-09-18 | 2020-09-18 | Electric power test box and test method thereof |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598703A (en) * | 2017-09-27 | 2018-01-19 | 苏州天顺新能源科技有限公司 | Tower weld grinding device and polishing process |
| CN108406603A (en) * | 2018-01-30 | 2018-08-17 | 宁波永祥铸造有限公司 | A kind of dust elimination noise abatement Sanding Room |
| CN109701905A (en) * | 2018-12-29 | 2019-05-03 | 江苏伊施德创新科技有限公司 | A kind of capacitance detecting line |
| CN109943843A (en) * | 2019-03-12 | 2019-06-28 | 常州大学 | A kind of method and apparatus of ultrasound on-line vibration auxiliary laser thermal spraying Al-Ti-Ni amorphous coating |
| CN110039430A (en) * | 2019-03-27 | 2019-07-23 | 无锡腾达海川新材料有限公司 | Acid cleaning process is exempted from a kind of production of LITHIUM BATTERY nickel strap |
| CN110153409A (en) * | 2019-06-17 | 2019-08-23 | 铜陵国传电子材料科技有限公司 | A kind of preparation method of the heat pipe copper powder with anti-oxidation function |
| CN110456156A (en) * | 2019-08-07 | 2019-11-15 | 安徽环测检测技术有限公司 | A kind of the equipotential resistance detection coupling arrangement and detection method of highly effective and safe |
| CN110567526A (en) * | 2019-09-16 | 2019-12-13 | 国网河北省电力有限公司电力科学研究院 | Cable lead sealing accessory comprehensive detection device and detection method |
| CN209868165U (en) * | 2019-04-11 | 2019-12-31 | 温州方驰服装辅料有限公司 | Anti-oxidation treatment device for surface of metal zipper |
| CN210413825U (en) * | 2019-05-31 | 2020-04-28 | 苏州陆钢精密模具有限公司 | Metal crystalline phase automatic detection machine |
| CN111312053A (en) * | 2019-12-06 | 2020-06-19 | 宁波工程学院 | Project sensor, detection experiment box and experiment method |
-
2020
- 2020-09-18 CN CN202010983951.0A patent/CN112162180B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598703A (en) * | 2017-09-27 | 2018-01-19 | 苏州天顺新能源科技有限公司 | Tower weld grinding device and polishing process |
| CN108406603A (en) * | 2018-01-30 | 2018-08-17 | 宁波永祥铸造有限公司 | A kind of dust elimination noise abatement Sanding Room |
| CN109701905A (en) * | 2018-12-29 | 2019-05-03 | 江苏伊施德创新科技有限公司 | A kind of capacitance detecting line |
| CN109943843A (en) * | 2019-03-12 | 2019-06-28 | 常州大学 | A kind of method and apparatus of ultrasound on-line vibration auxiliary laser thermal spraying Al-Ti-Ni amorphous coating |
| CN110039430A (en) * | 2019-03-27 | 2019-07-23 | 无锡腾达海川新材料有限公司 | Acid cleaning process is exempted from a kind of production of LITHIUM BATTERY nickel strap |
| CN209868165U (en) * | 2019-04-11 | 2019-12-31 | 温州方驰服装辅料有限公司 | Anti-oxidation treatment device for surface of metal zipper |
| CN210413825U (en) * | 2019-05-31 | 2020-04-28 | 苏州陆钢精密模具有限公司 | Metal crystalline phase automatic detection machine |
| CN110153409A (en) * | 2019-06-17 | 2019-08-23 | 铜陵国传电子材料科技有限公司 | A kind of preparation method of the heat pipe copper powder with anti-oxidation function |
| CN110456156A (en) * | 2019-08-07 | 2019-11-15 | 安徽环测检测技术有限公司 | A kind of the equipotential resistance detection coupling arrangement and detection method of highly effective and safe |
| CN110567526A (en) * | 2019-09-16 | 2019-12-13 | 国网河北省电力有限公司电力科学研究院 | Cable lead sealing accessory comprehensive detection device and detection method |
| CN111312053A (en) * | 2019-12-06 | 2020-06-19 | 宁波工程学院 | Project sensor, detection experiment box and experiment method |
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| Publication number | Publication date |
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| CN112162180A (en) | 2021-01-01 |
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