CN107515320B - Anti-drop testing tool that electric energy quality secondary side was used - Google Patents
Anti-drop testing tool that electric energy quality secondary side was used Download PDFInfo
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- CN107515320B CN107515320B CN201710970722.3A CN201710970722A CN107515320B CN 107515320 B CN107515320 B CN 107515320B CN 201710970722 A CN201710970722 A CN 201710970722A CN 107515320 B CN107515320 B CN 107515320B
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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
Abstract
The invention discloses an anti-drop test tool for a secondary side of electric energy quality, which relates to the technical field of electric power instrument test, solves the problems of poor contact, low reliability, reduced weight of a test wire and the like of a test wire clamp when the secondary side of the electric energy quality is tested in the prior art, adopts a magnetic base, the test wire clamp, the test wire and a test device to be skillfully combined, can match the test of the secondary test device of the electric energy quality, can match with the current complex test environment requirements of the electric energy quality, has strong applicability and flexibility, the proper position and direction fixing support frame is selected according to the trend of the test lead, the weight support of the remote test lead and the wiring complexity of the instrument are reduced to the greatest extent, meanwhile, the possibility that the test probe is heavy due to long lead length and is easy to have short circuit of a voltage loop and open circuit of a current loop is reduced, thereby greatly improving the reliability and flexibility of the whole testing process of the testing and fixing device.
Description
Technical Field
The invention relates to the technical field of power instrument testing, in particular to an anti-drop testing tool for a secondary side of power quality.
Background
The secondary test of the quality of the electric energy is routine test work which has strong technical and practical properties. The secondary test problem needs to be solved by applying scientific theory and also needs the processing skill of the engineering method. The secondary test work has an impression for every person who is engaged in the secondary professional of the electric energy quality: it is complicated and complicated. "the voltage loop can not short circuit, and the current loop can not open a way", this commonality general knowledge reminds electric energy quality secondary test personnel constantly, but in the middle of the actual work, if clear up work thinking, some experimental techniques of flexible operation often can play the effect of getting the best result with half the effort. The secondary test of the power quality mainly comprises the work of power quality, relay protection and the like, wherein in the test, a voltage signal needs to be tested, a voltage line clamps a secondary side signal of a voltage transformer, and a current signal uses a current clamp to obtain the secondary side signal of the current transformer.
When carrying out the secondary test of electric energy quality, often can meet some problems or safety problem, for example: the test voltage wire clamp cannot well contact the terminal of the screen cabinet, and the structure of a terminal screw must be changed frequently; the test lead is long, the weight born by the wire clamp is heavy, the wire clamp is easy to fall off to cause poor contact, and even the short circuit between voltage terminals is easy to cause; the test wire clamp is heavy, so that a voltage loop is easy to be short-circuited and a current loop is easy to be open-circuited; certain tests such as power quality need to know the working characteristics of harmonic source load, and the test usually works without power failure and continuously tests for multiple days, so that a tester cannot leave for a long time, and the risk of falling off in the long-time test is higher.
Disclosure of Invention
The invention provides an anti-drop test tool for a secondary side of power quality, which is used for solving the problems of poor contact, low reliability, light weight of a test wire clamp and the like of a test wire clamp when a secondary side of power equipment is tested in the prior art.
In order to solve the problems, the invention adopts the following technical scheme:
an anti-drop test tool for a secondary side of electric energy quality comprises a magnetic base, a test wire clamp, a test lead and a test device;
the test wire is fixed on the magnetic base, one end of the test wire is connected with the test wire clamp, and the other end of the test wire is connected with the test device;
the magnetic base comprises a base, an inner sleeve, an elastic retainer ring, a support frame, a magnet and a lead baffle buckle;
the base bottom is provided with magnet, and the support frame bottom is fixed in the base by the endotheca, and the support frame can be for the base activity, be provided with the circlip above the endotheca, be provided with wire fender on the support frame and detain.
Preferably, the base comprises a base body, the base body is of a cylindrical structure, a magnet groove is formed in the bottom of the base body, an inner sleeve groove is formed in the upper portion of the base body, a bottom groove is formed below the inner sleeve groove, a retainer ring groove is formed in the upper portion of the inner sleeve groove, and elastic through holes are radially formed in the base body;
the inner sleeve groove can accommodate the inner sleeve;
the retainer groove is used for placing the elastic retainer ring, and the elastic retainer ring is used for preventing the inner sleeve from being separated.
Preferably, the inner sleeve comprises an inner sleeve body, the inner sleeve body is of a hollow cylinder structure, a spherical groove is formed in the bottom of the inner sleeve body, a rod groove is formed in the spherical groove, an inner sleeve threaded hole is formed in the inner sleeve body in the radial direction, and an inner sleeve opening is formed in the inner sleeve body in the axial direction.
Preferably, the support frame comprises a fixing plate, at least one clamping groove is formed in the fixing plate, a support rod is arranged on the bottom surface of the fixing plate, a ball body is arranged at the bottom of the support rod, and a threaded hole for fixing the support frame is further formed in the fixing plate.
Preferably, the wire blocking buckle is of a long strip-shaped structure, and through holes are formed in two ends of the wire blocking buckle and can be fixed with the support frame through the through holes.
Preferably, a threaded jackscrew is arranged in the threaded hole of the inner sleeve; at least 3 threaded holes are formed in the inner sleeve.
Preferably, the testing device is a relay protection tester or a power quality analyzer.
Preferably, the test clip comprises a test probe, a fully insulated quick test clip or a magnetic clip.
Preferably, the magnetic clamp comprises a magnet probe, a connecting wire and an insulated handle test wire end, the magnet probe is connected with one end of the connecting wire, the probe can be connected with the secondary side of the power system, and meanwhile, the magnet helps the probe to attract a conductive plate fixed at a test position, so that the test wire probe can be prevented from falling off.
Preferably, the magnet is of cylindrical configuration.
The invention can match the test of the secondary test device of the power quality system by skillfully combining the magnetic base, the test wire clamp, the test wire and the test device, the two test probes can be matched with the current complex test environment requirements of the power quality system, and have strong applicability and flexibility, the fixed support frame is selected at a proper position and in a proper direction according to the trend of the test wire, so that the weight support of the remote test wire and the wiring complexity of an instrument can be reduced to the maximum extent, and the possibility that the test probe is heavy and is easy to have a voltage loop short circuit and a current loop open circuit due to long length of the wire is reduced, thereby greatly improving the reliability and flexibility of the whole test process of the test and fixing device.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the embodiment provided by the present invention;
FIG. 2 is an assembly view of the magnetic base of the embodiment provided by the present invention;
FIG. 3 is a cross-sectional view of a base of an embodiment of the present invention;
FIG. 4 is a cross-sectional view of an inner sleeve according to an embodiment of the present invention;
FIG. 5 is a schematic view of a supporting frame according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the general structure of the first embodiment of the present invention;
FIG. 7 is a schematic diagram of the overall structure of the second embodiment of the present invention;
in the drawings, the respective reference numerals denote:
1A: a magnetic base;
1: a base; 10: a base body; 11: a magnet slot; 12: a bottom groove; 13: an inner sleeve groove; 14: a retainer groove; 15: loosening and tightening through holes;
2: an inner sleeve; 20: an inner sleeve body; 21: a spherical groove; 22: a rod groove; 23: an inner sleeve threaded hole; 24: an opening is formed in the inner sleeve;
3: a circlip;
4: a support frame; 40: a fixing plate; 41: a support bar; 42: a sphere; 43: a clamping groove; 44: a support frame threaded hole;
5: a magnet;
6: a lead blocking buckle;
7: testing the wire clamp;
8: a test line;
9: and (6) testing the device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 7 in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The detailed description of the embodiments of the present invention generally described and illustrated in the figures herein is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic view of an overall structure of an embodiment provided by the present invention, fig. 2 is an assembly view of the embodiment provided by the present invention, and as shown in fig. 1 and fig. 2, an anti-falling test tool for a secondary side of power quality includes a magnetic base 1A, a test wire clamp 7, a test wire 8 and a test device 9;
the test wire 8 is fixed on the magnetic base 1A, one end of the test wire 8 is connected with the test wire clamp 7, and the other end of the test wire 8 is connected with the test device 9;
the test wire adopts a high-voltage all-copper high-quality test wire, namely a banana plug, and is a double-end A-A clamp, so that the high-reliability test of low contact resistance can be realized. One end of the test lead is connected with the test probe, and the other end of the test lead is connected with a terminal of the secondary test device for the quality of the electric energy;
the test wire clamp comprises a test probe, an all-insulated quick test clamp or a magnetic clamp, the magnetic clamp comprises a magnet probe, a connecting wire and an insulated handle test wire end, the magnet probe is connected with one end of the connecting wire, the probe can be connected with the secondary side of the power system, and the magnet is helpful for the probe to attract a conductive plate fixed at a test position, so that the test wire probe can be prevented from falling off;
the testing device 9 mainly comprises a relay protection tester, an electric energy quality analyzer and the like, and the instruments or devices provide standard banana sockets which can be conveniently connected with banana plugs of testing wires;
magnetic base 1A includes that base 1, endotheca 2, circlip 3, support frame 4, magnet 5 and wire keep off and detain 6, and 1 bottom of base is provided with magnet 5, and 4 bottoms of support frame are fixed in base 1 by endotheca 2, and support frame 4 can be for 1 activities of base, is provided with circlip 3 above the endotheca 2, is provided with wire on the support frame 4 and keeps off and detain 6.
Fig. 3 is a cross-sectional view of a base according to an embodiment of the present invention, as shown in fig. 3, the base 1 includes a base body 10, the base body 10 is a cylindrical structure, a cylindrical magnet slot 11 is formed at the bottom of the base body 10, and a cylindrical magnet 5 is fixed inside the cylindrical magnet slot; an inner sleeve groove 13 is formed in the upper portion of the base body 10, the inner sleeve groove 13 is used for installing an inner sleeve 2, a bottom groove 12 is formed below the inner sleeve groove 13, the bottom groove 12 is used for providing a moving space for a ball 42, a retainer ring groove 14 is formed in the upper portion of the inner sleeve groove 13, the retainer ring groove 14 is used for placing a circlip 3, the circlip 3 is used for preventing the inner sleeve 2 from being separated, elastic through holes 15 are radially formed in the base body 10, and the elastic through holes 15 are formed in 3 and correspond to inner sleeve threaded holes 23.
Fig. 4 is a cross-sectional view of an inner sleeve according to an embodiment of the present invention, as shown in fig. 4, the inner sleeve 2 includes an inner sleeve body 20, the inner sleeve body 20 is a hollow cylinder structure, and a spherical groove 21 is formed at the bottom of the inner sleeve body 20 for accommodating a sphere 42, so that the support frame 4 can freely rotate in the spherical groove 21; the upper surface of the spherical groove 21 is provided with a rod groove 22 for arranging a support rod 41, the support rod 41 penetrates out of the rod groove 22, and the diameter of the rod groove 22 is smaller than that of the spherical groove 21 and that of the sphere 42, so that the support rod 41 can rotate but cannot be separated; an inner sleeve threaded hole 23 is formed in the inner sleeve body 20 in the radial direction, and a threaded jackscrew is arranged in the inner sleeve threaded hole 23 and used for adjusting and fixing a ball so as to realize angle fixing of the support frame 4; the inner sleeve body 20 is axially provided with an inner sleeve opening 24, the inner sleeve opening 24 cuts the whole inner sleeve body 20 along the axial direction, so that a certain compression space can be provided when the inner sleeve body 20 is installed in the inner sleeve groove 13, in the embodiment, the diameter of the inner sleeve body 20 is larger than that of the inner sleeve groove 13, and the assembly is realized through interference fit.
Fig. 5 is a schematic structural view of the supporting frame according to the embodiment of the present invention, and as shown in fig. 5, the supporting frame 4 includes a fixing plate 40, the area of the fixing plate 40 is 120mm × 68mm, at least one clamping groove 43 is formed on the fixing plate 40, in this embodiment, 6 clamping grooves 43 are formed, and the test lead can be clamped by the clamping grooves 43 through the cooperation with the lead stopper 6; the bottom surface of the fixing plate 40 is provided with a support rod 41, the bottom of the support rod 41 is provided with a sphere 42, and the fixing plate 40 is further provided with a fixing support threaded hole 44 for fixing the lead retaining buckle 6.
Fig. 6 is a schematic view of the overall structure of the first embodiment of the present invention, as shown in fig. 6, the wire retaining buckle 6 is a strip-shaped structure, and two ends of the wire retaining buckle 6 are provided with through holes capable of being fixed with the supporting frame 4 through the through holes.
Fig. 7 is a schematic view of the overall structure of the second embodiment of the present invention, as shown in fig. 7, the wire retaining buckle 6 is a rectangular structure, and is matched with the fixing plate 40, and through holes are formed at four corners of the wire retaining buckle 6, and can be fixed with the supporting frame 4 through the through holes.
When in use, the method is operated according to the following steps:
1. installing a proper test wire clamp or test probe, selecting the test probe to be an all-insulated quick test clamp or a magnetic clamp according to the test environment, connecting the test probe to one end of a test lead, embedding the test probe into a fixed groove of a magnetic support frame, fastening a lead stopper, and connecting the other end of the test lead to a terminal of a test device;
2. adjusting the magnetic base to the optimal position suitable for testing, fixing the magnetic base at the front or the side of the screen cabinet and the like in combination with the routing path of the test wire, and rotating the support frame to the proper position and direction;
3. detecting whether short circuit exists among the test probes, specifically using a universal meter to detect the short circuit among the probes in a crossed manner, and if the probes do not have short circuit and are well contacted, directly connecting the test probes with secondary side output signals of the high-voltage transformer; if the short circuit phenomenon exists between the probes, continuing to search for the problem until the short circuit phenomenon does not exist, and then carrying out the next process;
4. and carrying out a secondary test of the power quality, checking whether a secondary test device of the power quality system works normally, mainly checking whether the secondary test device displays and each path of voltage and current is normal, and starting the secondary test device to collect data for analysis.
5. Once the abnormality is found in the test process, firstly, the input of the alternating current signal of the magnetic base is disconnected, and if the abnormality can be directly eliminated, the test is continued; otherwise, go to step 7 to finish the test
6. After the test is finished, the input of the alternating current signal of the magnetic base is directly disconnected, and the analysis data of the secondary electric energy quality test device is stored;
7. and (5) ending the test, closing the power supply input of the secondary test device for the power quality, and disconnecting the power supply and measurement terminals after the screen becomes black.
The invention can match the test of the electric energy quality secondary test device by skillfully combining the magnetic base, the test wire clamp, the test wire and the test device, the two test probes can be matched with the current complex test environment requirements of an electric energy quality system, and have strong applicability and flexibility, the proper position and direction fixing support frame is selected according to the trend of the test wire, the weight support of the remote test wire and the complexity of instrument wiring are reduced to the greatest extent, and the possibility that the test probe is heavy due to long wire length and is easy to have voltage loop short circuit and current loop open circuit is reduced, thereby greatly improving the reliability and flexibility of the whole test process of the test and fixing device.
Claims (4)
1. An anti-drop test tool for a secondary side of electric energy quality is characterized by comprising a magnetic base (1A), a test wire clamp (7), a test lead (8) and a test device (9);
the testing lead (8) is fixed on the magnetic base (1A), one end of the testing lead (8) is connected with the testing wire clamp (7), and the other end of the testing lead (8) is connected with the testing device (9);
the magnetic base (1A) comprises a base (1), an inner sleeve (2), an elastic retainer ring (3), a support frame (4), a magnet (5) and a lead retaining buckle (6);
the bottom of the base (1) is provided with a magnet (5), the bottom end of the support frame (4) is fixed in the base (1) by the inner sleeve (2), the support frame (4) can move relative to the base (1), the upper surface of the inner sleeve (2) is provided with an elastic retainer ring (3), and the support frame (4) is provided with a lead retaining buckle (6);
the base (1) comprises a base body (10), the base body (10) is of a cylindrical structure, a magnet groove (11) is formed in the bottom of the base body (10), an inner sleeve groove (13) is formed in the upper portion of the base body (10), a bottom groove (12) is formed below the inner sleeve groove (13), a retainer ring groove (14) is formed in the upper portion of the inner sleeve groove (13), and an elastic through hole (15) is formed in the base body (10) in the radial direction;
the inner sleeve groove (13) can accommodate the inner sleeve (2);
the retainer ring groove (14) is used for placing the elastic retainer ring (3), and the elastic retainer ring (3) is used for preventing the inner sleeve (2) from being separated;
the inner sleeve (2) comprises an inner sleeve body (20), the inner sleeve body (20) is of a hollow cylinder structure, a spherical groove (21) is formed in the bottom of the inner sleeve body (20), a rod groove (22) is formed in the spherical groove (21), an inner sleeve threaded hole (23) is formed in the inner sleeve body (20) in the radial direction, and an inner sleeve opening (24) is formed in the inner sleeve body (20) in the axial direction; the supporting frame (4) comprises a fixing plate (40), at least one clamping groove (43) is formed in the upper surface of the fixing plate (40), a supporting rod (41) is arranged on the bottom surface of the fixing plate (40), a ball body (42) is arranged at the bottom of the supporting rod (41), and a supporting frame fixing threaded hole (44) is further formed in the fixing plate (40);
the wire retaining buckle (6) is of a long strip-shaped structure, through holes are formed in two ends of the wire retaining buckle (6), and the wire retaining buckle can be fixed with the support frame (4) through the through holes;
the test wire clamp (7) comprises a test probe, an all-insulated rapid test clamp or a magnetic clamp;
the magnetic clamp comprises a magnet probe, a connecting wire and an insulating handle test wire end, the magnet probe is connected with one end of the connecting wire, the probe can be connected with the secondary side of the power system, and meanwhile, the magnet is beneficial to attracting the conductive plate fixed at the test position by the probe, so that the test wire probe can be prevented from falling off.
2. The drop-off prevention test tool according to claim 1, wherein:
a threaded jackscrew is arranged in the inner sleeve threaded hole (23); at least 3 inner sleeve threaded holes (23) are formed.
3. The drop-off prevention test tool according to claim 1, wherein:
the testing device (9) is a power quality analyzer or a relay protection tester.
4. The drop-off prevention test tool according to claim 1, wherein:
the magnet (5) is of a cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970722.3A CN107515320B (en) | 2017-10-18 | 2017-10-18 | Anti-drop testing tool that electric energy quality secondary side was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970722.3A CN107515320B (en) | 2017-10-18 | 2017-10-18 | Anti-drop testing tool that electric energy quality secondary side was used |
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| Publication Number | Publication Date |
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| CN107515320A CN107515320A (en) | 2017-12-26 |
| CN107515320B true CN107515320B (en) | 2020-07-28 |
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| CN201710970722.3A Active CN107515320B (en) | 2017-10-18 | 2017-10-18 | Anti-drop testing tool that electric energy quality secondary side was used |
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| CN107515320A (en) | 2017-12-26 |
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