CN210038041U - Auxiliary tool for withstand voltage test of insulating appliance - Google Patents
Auxiliary tool for withstand voltage test of insulating appliance Download PDFInfo
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- CN210038041U CN210038041U CN201920658414.1U CN201920658414U CN210038041U CN 210038041 U CN210038041 U CN 210038041U CN 201920658414 U CN201920658414 U CN 201920658414U CN 210038041 U CN210038041 U CN 210038041U
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Abstract
The utility model discloses an auxiliary tool for withstand voltage test of an insulating appliance, which comprises a high-voltage end and a grounding end, wherein the high-voltage end comprises a conductive bottom plate and at least two clamping insulating appliances which are sequentially arranged on the conductive bottom plate; the grounding end comprises an insulating bottom plate and at least two second conductive fixtures for clamping the insulating appliance, the second conductive fixtures are sequentially arranged on the insulating bottom plate, and each second conductive fixture is connected with a grounding wire for grounding. The utility model discloses an insulating apparatus withstand voltage test's appurtenance, the preparation time of withstand voltage test that has significantly reduced has improved work efficiency, and can compare in the mode of winding wire to insulating apparatus firm, and the two is inseparabler to also improved stability and final experimental effect in the experimentation, also more accorded with the experimental requirement of DL T1406-2015 electric power safety instrument preventive test regulation.
Description
Technical Field
The utility model relates to an insulation test technical field, more specifically say, relate to an appurtenance of insulating utensil withstand voltage test.
Background
The insulation safety appliance is one of important measures for guaranteeing the safety of electric workers, and is characterized in that according to the regulation standard: the test period of the insulating rod and the test pencil is 1 year, and the test period of the grounding rod is 5 years, so that a large number of insulating safety appliances need to be subjected to voltage withstand test every year.
When a large number of insulators need to be subjected to a voltage withstand test, most of the current voltage withstand tests adopt the following methods: the head end and the tail end of the tools and instruments of the same type and the same voltage grade are in short circuit by using metal wires, wherein one end of the tools and instruments is pressurized simultaneously, and the other end of the tools and instruments is grounded simultaneously.
The above method of the pressure resistance test has disadvantages in that: when a large number of tools need to be subjected to a pressure test, a large amount of time is required to wind the metal wire, and after the test is finished, the time is also required to unwind the metal wire. The method for winding the metal wire occupies a large amount of test time and has low working efficiency. In actual work, due to factors such as the size and the distance of the tools and the materials of the metal wires, the metal wires cannot be in close contact with the surfaces of the tools and the tools in the winding process, and corrosion and breakage are possible and cannot be found in time, so that the stability in the test process and the final test effect are affected.
Meanwhile, the iron wire is adopted, so that the requirements of the specification test are not met, and the requirements of the preventive test specification of the DL/T1406-2015 electric power safety tool are as follows: a) the high-voltage test electrode is arranged on the working part of the insulating rod; b) the test length is the distance between the high-voltage test electrode and the grounding electrode (the length of the metal connector element between the insulated operating rods is not included); c) the electrodes are preferably wrapped with a foil of about 50mm width or other suitable means and held at a distance between adjacent insulating rods.
Therefore, how to solve the problems of unstable test effect and low efficiency in the withstand voltage test of the insulator is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an insulating utensil withstand voltage test's appurtenance, this appurtenance can realize the quick installation and the separation of insulating utensil, improves test efficiency, can improve experimental effect simultaneously.
In order to achieve the above object, the present invention provides the following technical solutions:
an auxiliary tool for a withstand voltage test of an insulating appliance comprises a high-voltage end and a grounding end, wherein the high-voltage end comprises a conductive base plate and at least two first conductive clamps for clamping the insulating appliance, and the first conductive clamps are sequentially arranged on the conductive base plate; the grounding end comprises an insulating bottom plate and at least two second conductive fixtures for clamping the insulating appliance, the second conductive fixtures are sequentially arranged on the insulating bottom plate, and each second conductive fixture is connected with a grounding wire for grounding.
Preferably, the first conductive clamp and the second conductive clamp both comprise a first arc portion and a second arc portion, the arc angle of the first arc portion is larger than 180 degrees, the insulating appliance can be pressed into the first arc portion from the opening of the first arc portion, and the second arc portion is used for wrapping the first arc portion to wrap the insulating appliance.
Preferably, an arc opening of the second arc portion is provided with a bending portion which is bent outwards, so that the second arc portion is conveniently pressed on the outer wall of the first arc portion.
Preferably, the width of each of the first arc portion and the second arc portion is 40 to 60 mm, and the thickness of each of the first arc portion and the second arc portion is 0.5 to 1 mm.
Preferably, each grounding conductor is provided with a protection switch for protecting a circuit, and when the current passing through the protection switch reaches the rated current, the protection switch is automatically switched off.
Preferably, one end of each grounding wire, which is far away from the second conductive clamp, is converged and connected to the grounding head.
Preferably, a first groove is formed in the conductive base plate, a first protrusion matched with the first groove is formed in the first conductive clamp, and the first protrusion is inserted into the first groove so as to detachably mount the first conductive clamp on the conductive base plate; the insulating bottom plate is provided with a second groove, the bottom of the second conductive clamp is provided with a second protrusion matched with the second groove, and the second protrusion is inserted into the second groove to detachably mount the second conductive clamp on the conductive bottom plate.
Preferably, the first grooves are distributed on the conductive base plate side by side at equal intervals, and the second grooves are distributed on the insulating base plate side by side at intervals.
Preferably, the spacing is 40 to 60 mm.
Preferably, the conductive base plate, the first conductive clamp and the second conductive clamp are beryllium copper pieces.
The utility model provides an auxiliary tool for withstand voltage test of insulating appliances, when carrying out withstand voltage test, can fix the both ends of insulating appliances on the first conductive clamp and the second conductive clamp respectively, and because the insulating bottom plate and the conductive bottom plate are provided with a plurality of groups of the first conductive clamp and the second conductive clamp simultaneously, therefore, can simultaneously carry out withstand voltage test to a plurality of insulating appliances of the same type, on the other hand, because a plurality of the first conductive clamps are arranged on the conductive bottom plate with conductive performance in sequence, therefore, when needing to pressurize the insulating appliances, the conductive bottom plate can be directly pressurized, the conductive bottom plate can conduct voltage to each first conductive clamp thereon, the first conductive clamp can pressurize the insulating appliances thereon, and the other end of the insulating appliances is fixed by the second conductive clamp, the second conductive clamp is arranged on the insulating bottom plate, and the second conductive clamp is connected with a grounding wire which is grounded, so that a plurality of insulating appliances to be tested at the same time form a parallel connection relationship, the voltage applied on each insulating appliance can be ensured, the insulating appliances can be directly fixed by the first conductive clamp and the second conductive clamp without winding metal wires on the insulating appliances, after the voltage-withstanding test is completed, the metal wires do not need to be unwound in time, and only the conductive bottom plate is pressurized during pressurization, so that the preparation time of the voltage-withstanding test is greatly reduced, the working efficiency is improved, in addition, the insulating appliances can be firmly fixed by the clamp, compared with the mode of winding the metal wires, the two are in closer contact, and the stability and the final test effect in the voltage-withstanding test process are also improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a partial front view of a high voltage end of an auxiliary tool for a withstand voltage test of an insulating device provided by the present invention;
FIG. 2 is a partial perspective view of the high voltage end of the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention;
fig. 3 is a partial perspective view of the grounding terminal in the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention;
fig. 4 is a front view of a second arc portion in the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention;
fig. 5 is a perspective view of a second arc part in the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention;
fig. 6 is a front view of the conductive bottom plate in the auxiliary tool for the voltage withstand test of the insulating device provided by the present invention.
The device comprises a conductive base plate 1, a first arc part 2, an insulating base plate 3, a grounding lead 4, a protection switch 5, a grounding head 6, a second arc part 7, a bending part 8, a first bulge 9 and a first groove 10.
Detailed Description
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 work belong to the protection scope of the present invention.
The core of the utility model is to provide an insulating utensil withstand voltage test's appurtenance, this appurtenance can realize the quick installation and the separation of insulating utensil, improves test efficiency, can improve experimental effect simultaneously.
Referring to fig. 1 to 6, fig. 1 is a partial front view of a high voltage end of an auxiliary tool for a withstand voltage test of an insulating device according to the present invention; FIG. 2 is a partial perspective view of the high voltage end of the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention; fig. 3 is a partial perspective view of the grounding terminal in the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention; fig. 4 is a front view of a second arc portion in the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention; fig. 5 is a perspective view of a second arc part in the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention; fig. 6 is a front view of the conductive bottom plate in the auxiliary tool for the voltage withstand test of the insulating device provided by the present invention.
The utility model provides an auxiliary tool for withstand voltage test of an insulating appliance, which comprises a high-voltage end and a grounding end, wherein the high-voltage end comprises a conductive bottom plate 1 and at least two first conductive clamps for clamping the insulating appliance, and the first conductive clamps are sequentially arranged on the conductive bottom plate 1; the grounding end comprises an insulating bottom plate 3 and at least two second conductive fixtures for clamping the insulating appliance, the second conductive fixtures are sequentially arranged on the insulating bottom plate 3, and each second conductive fixture is connected with a grounding wire 4 for grounding.
Wherein, high-voltage terminal and earthing terminal are used for the both ends of the fixed insulating utensil of centre gripping respectively, when carrying out the withstand voltage test of insulating utensil, pressurize the high-voltage terminal, with low-voltage terminal ground connection, withstand voltage test's rationale is: a voltage higher than normal operation is applied to the insulator of the device under test for a prescribed period of time, and if the insulation is good enough, the applied voltage will produce only a small leakage current. If the leakage current of an insulator of the tested equipment is kept in a specified range within a specified time, each insulating rod in a withstand voltage test should not have flashover or breakdown, and the insulating rod has no discharge or burn mark and no obvious heating phenomenon after the test, the tested equipment can be determined to safely operate under the normal operating condition.
The first conductive clamp is used for clamping one end of an insulation appliance to be tested, the conductive base plate 1 is used for arranging the first conductive clamp, a plurality of first conductive clamps can be arranged on the conductive base plate 1, when a voltage withstand test is carried out, a plurality of insulation appliances can be fixed on the first conductive clamp at the same time, so that the voltage withstand test can be carried out on the plurality of insulation appliances at the same time, and the test efficiency is improved.
The second conductive clamp is used for clamping the other end of the tested insulating appliance, the insulating base plate 3 clamp is used for installing the second conductive clamp, and the first conductive clamp and the second conductive clamp are required to clamp and fix two ends of the same tested insulating appliance, so that the second conductive clamp and the first conductive clamp arranged on the conductive base plate 1 are correspondingly arranged on the insulating base plate 3, and the insulating base plate 3 is an insulating plate material and can be a ceramic piece. The second conductive clamp should have conductive performance, and a grounding wire 4 for grounding is connected to the second conductive clamp, so that the grounding wire 4 connected to the second conductive clamp needs to be grounded when a voltage withstand test is performed.
The utility model provides an auxiliary tool for withstand voltage test of insulating apparatus, when carrying out withstand voltage test, can fix the both ends of insulating apparatus on first conductive clamp and second conductive clamp respectively, and because insulating bottom plate 3 and conductive bottom plate 1 are provided with multiunit first conductive clamp and second conductive clamp simultaneously, therefore, can carry out withstand voltage test to a plurality of insulating apparatus of the same type simultaneously, on the other hand, because a plurality of first conductive clamps set gradually on conductive bottom plate 1 with conductivity, therefore, when needing to pressurize the insulating apparatus, can directly pressurize conductive bottom plate 1, conductive bottom plate 1 can conduct voltage to each first conductive clamp thereon, first conductive clamp can pressurize the insulating apparatus thereon, and the other end of insulating apparatus is fixed by second conductive clamp, second conductive clamp is set on insulating bottom plate 3, and the second conductive clamp is connected with a grounding wire 4, the grounding wire 4 is grounded, so that a plurality of insulating appliances to be tested at the same time form a parallel connection relationship, the voltage applied on each insulating appliance can be ensured, the insulating appliances can be directly fixed by the first conductive clamp and the second conductive clamp without winding a metal wire on the insulating appliances, the metal wire does not need to be untied after the voltage-withstanding test is completed, and only the conductive base plate 1 is pressurized during pressurization, so the preparation time of the voltage-withstanding test is greatly reduced, the working efficiency is improved, in addition, the insulating appliances can be firmly fixed by the clamp, compared with the mode of winding the metal wire, the contact between the insulating appliances and the metal wire is tighter, the requirements of the rule test are better met, and the stability and the final test effect in the voltage-withstanding test process are also improved.
On the basis of the above embodiment, the first conductive fixture and the second conductive fixture both include the first arc portion 2 and the second arc portion 7 having arc angles larger than 180 degrees, the insulating device can be pressed into the first arc portion 2 from the opening of the first arc portion 2, and the second arc portion 7 is used for wrapping the first arc portion 2 to wrap the insulating device.
In consideration of the fact that in the actual process of performing the voltage withstand test, the tested insulating device is generally a cylindrical structure such as an insulating rod, an electroscope or a ground rod, the first conductive clamp and the second conductive clamp can be set to be of a structure including the first arc portion 2 and the second arc portion 7, the arc angle of the first arc portion 2 and the second arc portion 7 is larger than 180 degrees, the insulating device can be extruded into the first arc portion 2 from the opening of the first arc portion 2, so that the first arc portion 2 clamps and wraps the lower half portion of the insulating device, then the arc opening of the second arc portion 7 is pressed downwards along the outer wall of the first arc portion 2 from the upper side of the first arc portion 2, the second arc portion 7 wraps the arc opening of the first arc portion 2, the first arc portion 2 and the second arc portion 7 can wrap the insulating device completely, the first conductive clamp, the second conductive clamp and the insulating device can be fixed in an arc wrapping manner, The contact area of the second conductive clamp and the insulating appliance improves the test effect, and on the other hand, when the insulating appliance is fixed, the insulating appliance can be directly extruded into the first arc part 2 from the opening of the first arc part 2, so that the installation time of the insulating appliance is further shortened, and the working efficiency is improved.
It should be noted that, the first arc portion 2 and the second arc portion 7 herein should have a certain elastic deformation, so that when the insulating device is squeezed into the first arc portion 2, or the second arc portion 7 is pressed on the outer wall of the first arc portion 2, the first arc portion 2 and the second arc portion 7 can be under the action of the squeezing force, the openings of the first arc portion 2 and the second arc portion 7 become larger and smaller, and then the insulating device is clamped. Preferably, the thickness of the first circular arc portion 2 and the second circular arc portion 7 may be set to be thin so as to be easily subjected to extrusion deformation.
On the basis of the above-mentioned embodiment, for the convenience on the outer wall of second circular arc portion 7 pressure equipment at first circular arc portion 2, can set up the flexion 8 of incurving at the tip of second circular arc portion 7, so that at the in-process of second circular arc portion 7 pressure equipment on first circular arc portion 2 outer wall, the flexion 8 of second circular arc portion 7 can with the smooth contact of the outer wall of first circular arc portion 2, so that in first circular arc portion 2 slided into second circular arc portion 7, thereby reduced the resistance that second circular arc portion 7 received, still can avoid causing the injury to operating personnel simultaneously.
In addition to the above embodiments, considering the specific size of the first arc portion 2 and the second arc portion 7, the diameter of the first arc portion 2 and the second arc portion 7 should be determined according to the size of the insulation appliance to be measured, and may be flexibly set according to the actual insulation appliance to be measured, and preferably, the width of the first arc portion 2 and the second arc portion 7 may be 40 to 60 mm, and the thickness may be 0.5 to 1 mm.
On the basis of the above embodiment, in order to avoid that a large current continuously passes through an insulating appliance with poor quality, thereby causing influence on other qualified insulating appliances, a protection switch 5 for protecting a circuit may be provided on each ground wire 4, when the current passing through the protection switch 5 reaches a rated current, the protection switch 5 is automatically turned off to realize protection of the insulating appliance to be tested, the magnitude of the rated current may flexibly select the protection switch 5 with different rated currents according to actual needs of the insulating appliance to be tested, for example, a fuse is selected as the protection switch 5, and fuses with different rated currents are selected according to needs.
On the basis of the above embodiment, in order to further shorten the preparation time of the voltage withstand test and improve the test efficiency, one end of each grounding wire 4 far from the second conductive fixture may be connected to the grounding terminal 6 in a converging manner, that is, all the grounding wires 4 are converged to one point for grounding, and in the actual voltage withstand test, only the grounding terminal 6 needs to be grounded.
On the basis of any of the above embodiments, in order to improve the versatility of the auxiliary tool for the withstand voltage test of the insulating device provided by the present invention in consideration of the different sizes of different insulating devices, the first conductive clamp can be detachably arranged on the conductive base plate 1, the second conductive clamp can also be detachably arranged on the insulating base plate 3, so that the first conductive clamp and the second conductive clamp with corresponding sizes are arranged on the conductive base plate 1 and the insulating base plate 3 according to the sizes of different insulating appliances, therefore, the testing requirements of insulating appliances with different sizes are met, preferably, a first groove 10 for inserting a first conductive clamp is arranged on the conductive base plate 1, a first bulge 9 matched with the first groove 10 is arranged at the bottom of the first conductive clamp, and the first bulge 9 is inserted into the first groove 10 so as to detachably mount the first conductive clamp on the conductive base plate 1; and a second groove for inserting a second conductive clamp is formed in the insulating base plate 3, a second protrusion matched with the second groove is arranged at the bottom of the second conductive clamp, and the second protrusion is inserted into the second groove to detachably install the second conductive clamp on the conductive base plate 1.
On the basis of the above embodiment, considering the arrangement manner of the first grooves 10 and the second grooves on the conductive base plate 1 and the insulating base plate 3, it is preferable that the first grooves 10 are distributed on the conductive base plate 1 side by side and at equal intervals, and since the first conductive fixture and the second conductive fixture need to clamp and fix two ends of the same insulating device, the second grooves should be distributed on the insulating base plate 3 side by side according to the interval of the first grooves 10, so that the first conductive fixture and the second conductive fixture arranged on the first grooves 10 and the second grooves can be aligned. Preferably, the spacing may be 0 to 60 mm.
On the basis of the above-mentioned embodiment, consider that the material of electrically conductive bottom plate 1, first electrically conductive anchor clamps and second electrically conductive anchor clamps is selected, because electrically conductive bottom plate 1, first electrically conductive anchor clamps and second electrically conductive anchor clamps all need have good electric conductivity, especially first circular arc portion 2 and second circular arc portion 7 still need have certain elastic deformation, consequently, electrically conductive bottom plate 1, first electrically conductive anchor clamps and second electrically conductive anchor clamps all can be beryllium copper spare, beryllium copper has the advantage that electric conductivity is good and pliability is good, and is particularly suitable for the utility model provides an insulating appliance withstand voltage test's appurtenance.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above is to the utility model provides an insulating apparatus withstand voltage test's appurtenance has carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The auxiliary tool for the withstand voltage test of the insulating appliance is characterized by comprising a high-voltage end and a grounding end, wherein the high-voltage end comprises a conductive base plate (1) and at least two first conductive clamps for clamping the insulating appliance, and the first conductive clamps are sequentially arranged on the conductive base plate (1); the grounding end comprises an insulating bottom plate (3) and at least two second conductive fixtures used for clamping the insulating appliance, the second conductive fixtures are sequentially arranged on the insulating bottom plate (3), and each second conductive fixture is connected with a grounding wire (4) used for grounding.
2. The auxiliary tool for the voltage withstand test of the insulating device according to claim 1, wherein the first conductive fixture and the second conductive fixture each comprise a first arc portion (2) and a second arc portion (7) having an arc angle greater than 180 degrees, the insulating device can be pressed into the first arc portion (2) from the opening of the first arc portion (2), and the second arc portion (7) is used for wrapping the first arc portion (2) to wrap the insulating device.
3. The auxiliary tool for the voltage withstand test of the insulator according to claim 2, wherein a bent portion (8) bent outward is provided at an arc opening of the second arc portion (7) so as to press the second arc portion (7) against an outer wall of the first arc portion (2).
4. The auxiliary tool for the insulation apparatus withstand voltage test according to claim 3, wherein the first arc portion (2) and the second arc portion (7) each have a width of 40 to 60 mm and a thickness of 0.5 to 1 mm.
5. The auxiliary tool for the withstand voltage test of the insulation apparatus according to claim 1, wherein each of the grounding conductors (4) is provided with a protection switch (5) for protecting a circuit, and when the current passing through the protection switch (5) reaches a rated current, the protection switch (5) is automatically turned off.
6. The auxiliary tool for the insulation apparatus withstand voltage test according to claim 5, wherein one end of each of the grounding wires (4) away from the second conductive clamp is connected to a grounding terminal (6) in a converging manner.
7. The auxiliary tool for the withstand voltage test of the insulating apparatus according to any one of claims 1 to 6, wherein a first groove (10) is formed on the conductive base plate (1), a first protrusion (9) matched with the first groove (10) is formed on the first conductive clamp, and the first protrusion (9) is used for being inserted into the first groove (10) so as to detachably mount the first conductive clamp on the conductive base plate (1); and a second groove is formed in the insulating base plate (3), a second protrusion matched with the second groove is arranged at the bottom of the second conductive clamp, and the second protrusion is inserted into the second groove so as to detachably mount the second conductive clamp on the conductive base plate (1).
8. The auxiliary tool for the insulation apparatus withstand voltage test is characterized in that the first grooves (10) are distributed on the conductive base plate (1) side by side and at equal intervals, and the second grooves are distributed on the insulation base plate (3) side by side according to the intervals.
9. The auxiliary tool for dielectric breakdown testing of an insulator according to claim 8, wherein the pitch is 40 to 60 mm.
10. The auxiliary tool for the insulation apparatus withstand voltage test according to claim 9, wherein the conductive base plate (1), the first conductive clamp and the second conductive clamp are all beryllium copper pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920658414.1U CN210038041U (en) | 2019-05-08 | 2019-05-08 | Auxiliary tool for withstand voltage test of insulating appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920658414.1U CN210038041U (en) | 2019-05-08 | 2019-05-08 | Auxiliary tool for withstand voltage test of insulating appliance |
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| Publication Number | Publication Date |
|---|---|
| CN210038041U true CN210038041U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920658414.1U Active CN210038041U (en) | 2019-05-08 | 2019-05-08 | Auxiliary tool for withstand voltage test of insulating appliance |
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| Country | Link |
|---|---|
| CN (1) | CN210038041U (en) |
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2019
- 2019-05-08 CN CN201920658414.1U patent/CN210038041U/en active Active
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