CN109444478B - An electrical connection device for three-phase high-voltage electrical test - Google Patents
An electrical connection device for three-phase high-voltage electrical test Download PDFInfo
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- CN109444478B CN109444478B CN201811269489.7A CN201811269489A CN109444478B CN 109444478 B CN109444478 B CN 109444478B CN 201811269489 A CN201811269489 A CN 201811269489A CN 109444478 B CN109444478 B CN 109444478B
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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
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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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
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Abstract
本发明提供了一种三相高压电器试验用电连接装置，包括用于与试验工装的一相导体电连接的导电座，用于与试品的其中一相导体电连接的触头，触头与导电座之间通过导电臂电性连接，触头与导电座上下分布，导电臂沿前后方向延伸，导电臂的前端与触头电性连接，导电臂的后端与导电座电性连接，导电臂的后端与导电座绕上下延伸的轴线转动装配。这样，试品与试验工装之间的电连是刚性连接，增大了通流能力，并且使用起来安全可靠；同时，导电臂的转动能够调整触头的位置，从而使得该连接装置能够适应不同的三相导体间距的三相高压电器试验中，提高了通用性。
The invention provides an electrical connection device for a three-phase high-voltage electrical test, comprising a conductive seat used for electrical connection with a phase conductor of a test tool, a contact used for electrical connection with one of the phase conductors of the test sample, and the contact It is electrically connected to the conductive base through the conductive arm, the contacts and the conductive base are distributed up and down, the conductive arm extends in the front-rear direction, the front end of the conductive arm is electrically connected to the contact, and the rear end of the conductive arm is electrically connected to the conductive base. The rear end of the conductive arm and the conductive seat are rotatably assembled around the axis extending up and down. In this way, the electrical connection between the test object and the test fixture is a rigid connection, which increases the flow capacity, and is safe and reliable to use; at the same time, the rotation of the conductive arm can adjust the position of the contact, so that the connection device can adapt to different In the three-phase high-voltage electrical test of the three-phase conductor spacing, the versatility is improved.
Description
Technical Field
The invention relates to an electric connecting tool for a high-voltage electric appliance product test, in particular to an electric connecting device for a three-phase high-voltage electric appliance test.
Background
At present, three-phase common-box GIS products with the voltage level of 110kV and below are designed differently in various manufacturers, and the distances between three-phase central conductors of an inner insulating basin are also different, so that when manufacturers of mutual inductors and lightning arrester products matched with the three-phase common-box GIS products design, adaptive design needs to be carried out according to the distances between the three-phase central conductors of the insulating basins of different manufacturers. Mutual inductors and lightning arrester products of different specifications of three-phase common-box GIS products of different manufacturers are adapted to be tested when leaving a factory, in the prior art, the three-phase conductors of the products and the three-phase conductors of a test tool are respectively connected in an electric mode in a one-to-one correspondence mode by using flexible conductors, the connection mode is simple and easy to operate, the distance between the three-phase conductors of the test tool and the distance between the three-phase conductors of the products do not need to be adjusted, however, the flexible conductors have limited current bearing capacity and are easy to bend and damage, so that potential safety hazards exist in the connection mode, and the applicability of the flexible conductors is poor. Therefore, it is highly desirable to design a safe and reliable electrical connection device with high current capacity and high versatility.
Disclosure of Invention
The invention aims to provide a safe and reliable electric connecting device for a three-phase high-voltage electrical appliance test, which has high through-current capacity and high universality and is used for solving the problems of low through-current capacity and potential safety hazard caused by adopting flexible conductor electric connection in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the electric connecting device for the test of the three-phase high-voltage electric appliance comprises a conductive seat used for being electrically connected with one phase conductor of a test tool, a contact used for being electrically connected with one phase conductor of a test article, the contact is electrically connected with the conductive seat, the contact and the conductive seat are distributed up and down, the electric connecting device also comprises a conductive arm with the length vertical to the up-down direction, the length direction of the conductive arm is provided with a front end and a rear end, the front end of the conductive arm is electrically connected with the contact, the rear end of the conductive arm is electrically connected with the conductive seat, and the contact is electrically connected with the conductive seat through the conductive arm; the rear end of the conductive arm and the conductive seat are assembled in a rotating mode around the axis extending up and down.
Has the advantages that: because the electric connection between the test article and the test tool is realized sequentially through the contact, the conductive arm and the conductive seat, the electric connection structure between the test article and the test tool is a rigid connection structure, so that the through-current capacity between the test article and the test tool is increased, and the test tool is safer and more reliable; in addition, the conductive arms can rotate, so when the connecting device is applied to a three-phase high-voltage electrical appliance test, the rotating of any one conductive arm can cause the change of the distance between the three contacts, and therefore, the connecting device can be suitable for the three-phase high-voltage electrical appliance test with different three-phase conductor distances by rotating the conductive arms, and the universality is improved.
Furthermore, the contact is elastic contact that stretches out and draws back from top to bottom, and elastic contact includes the connecting seat, and the connecting seat extends along upper and lower direction, connecting seat lower extreme and electrically conductive arm releasable connection, and the connecting seat upper end is equipped with the blind hole that extends along upper and lower direction that the opening is up, and the direction slides in the blind hole and is equipped with the telescopic link, lies in the below of telescopic link in the blind hole and is equipped with the elastic component, and the elastic component pushes up the telescopic link. Thus, when the electric connecting device is in contact and electric connection with the conductor of the test article, the elastic contact can stretch up and down to be conveniently assembled; and after the assembly is finished, the elastic piece can always push the telescopic rod upwards, so that the contact is reliably contacted with the conductor of the test object under the elastic force of the elastic piece.
Furthermore, the conductive arm is a conductive plate, the conductive plate is composed of a front semicircular plate at the front end, a rear semicircular plate at the rear end and a trapezoidal plate transitionally connected between the front and rear semicircular plates, and the radius of the front semicircular plate is smaller than that of the rear semicircular plate. Therefore, the rear end of the conducting plate is wider than the front end, so that the conducting plate can obtain firmer support and conducting area on the conducting seat, and the narrow front end enables the conducting plate to swing more flexibly and is not easy to interfere with other surrounding conducting rods and other devices.
Furthermore, the upper end of the telescopic rod is fixedly connected with a conductive ball, and the upper end spherical surface of the conductive ball forms an electric connection surface which is in conductive contact with one phase conductor of the test sample. Therefore, the conductive ball can conform to the extension and retraction of the elastic contact, so that the conductive connection with the test article can be more smoothly completed.
Furthermore, the upper end of the conductive seat is detachably connected with the rear end of the conductive arm through a fastener, the lower end of the conductive seat is provided with a stud, and the stud forms a conductive connecting part electrically connected with a phase conductor of the test tool. Therefore, the conductive connection between the test tool and the conductive seat is facilitated.
Drawings
FIG. 1 is a schematic structural view of an electrical connection device according to an embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a cross-sectional view of the contact of FIG. 1;
FIG. 4 is a top view of the conductive plate of FIG. 3;
FIG. 5 is a cross-sectional view of the conductive socket of FIG. 3;
fig. 6 is a schematic view of an electrical connection device of embodiment 1 of the present invention in a use state.
In the figure: 1. the test fixture comprises a contact, 2, a conductive arm, 3, a conductive seat, 4, a conductive ball, 5, a telescopic rod, 6, a spring, 7, a pressing piece, 8, a connecting seat, 9, a first stud, 10, a fastener, 11, a second stud, 13, an insulating basin of the test fixture, 14, an electric connecting device, 15, a three-phase conductor of the insulating basin of the test specimen, 16, a front part, 17, a rear part, 18 and a transition part.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In embodiment 1 of the electrical connection device for testing a three-phase high-voltage electrical apparatus of the present invention, as shown in fig. 1 to 6, the electrical connection device includes a contact 1, a conductive arm 2, and a conductive seat 3, the contact 1 is used for electrically connecting with one of the phase conductors of the test sample, the conductive seat 3 is used for electrically connecting with one of the phase conductors of the testing tool, and the contact 1, the conductive arm 2, and the conductive seat 3 are electrically connected.
The structure of the contact 1 is as shown in fig. 3, and comprises a connecting seat 8, wherein the connecting seat 8 is a cylindrical structure extending along the vertical direction, a first stud 9 is arranged at the lower end of the connecting seat 8, and the first stud 9 is in threaded connection with a threaded hole formed in the conductive arm 2 to realize fixation. The upper end of connecting seat 8 is provided with the blind hole that the opening upwards extends along upper and lower direction, and the inner wall of blind hole is provided with the internal thread, and the installation compresses tightly piece 7 in the blind hole, compresses tightly 7 and be the bolt structure, is provided with the external screw thread that matches with the internal thread of blind hole on the tip end outer peripheral face that compresses tightly 7, realizes compressing tightly 7 and connecting seat 8's fixed through threaded connection. The compressing piece 7 is coaxially provided with a guide hole in a penetrating way from top to bottom, the aperture of the guide hole at the large end is smaller than that at the small end, and therefore a step surface is formed at the connecting part of the large end and the small end in the guide hole. The telescopic link 5 is assembled in the guiding hole of the pressing piece 7 in a sliding manner in an up-and-down guiding manner, the telescopic link 5 is provided with a large-diameter section matched with the guiding hole aperture of the small end of the pressing piece 7 and a small-diameter section matched with the guiding hole aperture of the large end, and a step surface is formed between the large-diameter section and the small-diameter section. The stepped surface is matched with the stepped surface in the guide hole of the pressing piece 7 in a stop way, so that the telescopic rod 5 is prevented from being separated from the upper end of the pressing piece 7. The upper end of the telescopic rod 5 is provided with a conductive ball 4, and the upper end spherical surface of the conductive ball 4 forms an electric connection surface which is in conductive contact with a phase conductor of the test article. A spring 6 in a compressed state is further placed in the guide hole of the pressing piece 7, the upper end of the spring 6 pushes the telescopic rod 5 upwards, and the lower end of the spring 6 is in contact with the bottom of the blind hole of the connecting seat 8. The spring 6 always pushes the telescopic rod 5 upwards, so that the contact reliably contacts with the conductor of the test sample under the elastic force of the spring 6. The conductive balls 4, the telescopic rod 5, the pressing piece 7 and the connecting seat 8 are all made of conductive materials.
When the contact 1 is used, the conductive ball 4 is electrically connected with one phase conductor of a test article, the conductive ball 4 is pressed, the spring 6 is further compressed, and the spring 6 generates larger pushing force on the telescopic rod 5, so that reliable electric connection between the conductive ball 4 and the one phase conductor of the test article is ensured.
The structure of the conductive arm 2 is shown in fig. 4, the conductive arm 2 is a plate-shaped conductive plate, the conductive plate extends along the front-back direction, the front end of the conductive plate is a front portion 16 detachably and fixedly connected with the contact 1, and the rear end of the conductive plate is a rear portion 17 detachably and fixedly connected with the conductive base 3. The front part 16 is a front semicircular plate, the rear part 17 is a rear semicircular plate, the radius of the front semicircular plate is smaller than that of the rear semicircular plate, and a transition part 18 formed by trapezoidal plates is connected between the front part 16 and the rear part 17 in a transition mode. A threaded hole is formed in the center of the front part 16 and used for being fixedly installed with a first stud 9 at the lower end of the connecting seat 8; the center of the rear portion 17 is provided with a stepped hole with a large top and a small bottom for fixedly connecting with the conductive seat 3. The rear portion 17 of the conductive plate is wider than the front portion 16, so that the conductive plate can obtain firmer support and conductive area on the conductive seat, and the narrower front portion 16 makes the swinging of the conductive plate more flexible and is not easy to interfere with other surrounding conductive rods and other devices.
The structure of the conductive seat 3 is as shown in fig. 5, the conductive seat 3 is a cylindrical structure extending along the up-down direction, a counter bore is arranged at the upper end of the conductive seat 3, and a stud two 11 is arranged at the lower end of the conductive seat 3. The counter bore of the conductive seat 3 is aligned with the stepped hole of the rear part 17 of the conductive plate, the conductive seat and the stepped hole can be fixedly connected through a fastener such as a bolt, and the stud II 11 at the lower end of the conductive seat 3 is used for being connected and fixed with one of the phase conductors of the test tool to realize electric connection.
When the three-phase high-voltage electric appliance test sample is tested, as shown in fig. 6, the studs 11 of the conductive bases 3 of the three electric connecting devices 14 are respectively and fixedly connected to the three-phase conductors ABC of the insulating basin 13 of the test tool, then the fasteners between the conductive bases 3 of the electric connecting devices and the conductive plates are loosened according to the mutual distance between the three-phase conductors of the insulating basin of the test sample, the conductive plates are rotated, the positions of the contacts 1 are adjusted, the three contacts of the three electric connecting devices are aligned with the three-phase conductors 15 of the insulating basin of the test sample one by one, then the fasteners between the conductive bases 3 of the electric connecting devices and the conductive plates are screwed, and finally the three contacts of the three electric connecting devices are respectively contacted with the three-phase conductors of the insulating basin of the test sample for electric conduction, so that the.
The test tool and the test article are sequentially connected through the contact 1, the conductive arm 2 and the conductive seat 3 in an electric connection mode, the electric connection mode is rigid connection, the through-current capacity between the test tool and the test article can be improved, and the test tool is reliable to mount when being used. Meanwhile, the conducting plate can rotate around the axis of the conducting seat 3, so that the position of the contact 1 can be adjusted, the distance between three contacts among three electric connection devices can be adjusted, the three-phase conductor testing device can adapt to test products with different three-phase conductor distances, and the universality of the electric connection devices is improved.
In this embodiment, the contact 1 is a conductive ball for electrically connecting and contacting with the conductor of the test article, and in other embodiments, the conductive ball may be omitted, so that the upper end surface of the telescopic rod is directly electrically connected with the conductor of the test article, or a conductive part with other shape may be used.
In this embodiment, the spring 6 pushing the telescopic rod upwards is used, and in other embodiments, other elastic components such as a pressure spring and the like can be used.
In this embodiment, the conductive arm 2 is a conductive plate, the conductive plate is composed of a front semicircular plate at the front end, a rear semicircular plate at the rear end, and a trapezoidal plate transitionally connected between the front and rear semicircular plates.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269489.7A CN109444478B (en) | 2018-10-29 | 2018-10-29 | An electrical connection device for three-phase high-voltage electrical test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269489.7A CN109444478B (en) | 2018-10-29 | 2018-10-29 | An electrical connection device for three-phase high-voltage electrical test |
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| Publication Number | Publication Date |
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| CN109444478A CN109444478A (en) | 2019-03-08 |
| CN109444478B true CN109444478B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811269489.7A Active CN109444478B (en) | 2018-10-29 | 2018-10-29 | An electrical connection device for three-phase high-voltage electrical test |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113009189A (en) * | 2019-12-19 | 2021-06-22 | 河南平芝高压开关有限公司 | Withstand voltage test device and conductive connection assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203056444U (en) * | 2013-02-04 | 2013-07-10 | 深圳市金博联电力技术有限公司 | Isolating ground switch used for solid insulation switch cabinet |
| CN204118652U (en) * | 2014-07-24 | 2015-01-21 | 诸暨市超灵机械有限公司 | A kind of adjustable conductor spacer |
| CN104698292A (en) * | 2013-12-06 | 2015-06-10 | 国网上海市电力公司 | Adjustable multipurpose three-phase test set |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10039928B4 (en) * | 2000-08-16 | 2004-07-15 | Infineon Technologies Ag | Device for automated testing, calibration and characterization of test adapters |
| JP2008309664A (en) * | 2007-06-15 | 2008-12-25 | Nec Corp | High-frequency probe |
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- 2018-10-29 CN CN201811269489.7A patent/CN109444478B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203056444U (en) * | 2013-02-04 | 2013-07-10 | 深圳市金博联电力技术有限公司 | Isolating ground switch used for solid insulation switch cabinet |
| CN104698292A (en) * | 2013-12-06 | 2015-06-10 | 国网上海市电力公司 | Adjustable multipurpose three-phase test set |
| CN204118652U (en) * | 2014-07-24 | 2015-01-21 | 诸暨市超灵机械有限公司 | A kind of adjustable conductor spacer |
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| CN109444478A (en) | 2019-03-08 |
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