CN110376423B - High-voltage electroscope for power equipment maintenance - Google Patents
High-voltage electroscope for power equipment maintenance Download PDFInfo
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- CN110376423B CN110376423B CN201910692258.5A CN201910692258A CN110376423B CN 110376423 B CN110376423 B CN 110376423B CN 201910692258 A CN201910692258 A CN 201910692258A CN 110376423 B CN110376423 B CN 110376423B
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- electrode
- contact electrode
- electroscope
- circuit
- magnetic sleeve
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- 238000012423 maintenance Methods 0.000 title claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052782 aluminium Inorganic materials 0.000 claims description 25
- 239000004411 aluminium Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 239000004020 conductor Substances 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- XVIZMMSINIOIQP-UHFFFAOYSA-N 1,2-dichloro-3-(2-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C(=CC=CC=2)Cl)=C1Cl XVIZMMSINIOIQP-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/15—Indicating the presence of current
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention relates to the technical field of circuit detection, and discloses a high-voltage electroscope for electric power equipment overhaul, which comprises a handle, a clamping sleeve, a contact electrode, a self-checking switch and an insulating sleeve, wherein the clamping sleeve is arranged at the top end of the handle, the contact electrode is arranged at the top end of the clamping sleeve, the self-checking switch is arranged on the clamping sleeve, the insulating sleeve is arranged on the handle, a positioning seat is arranged on the clamping sleeve, a positioning rod is connected to the inside of the positioning seat in a rotating manner, and a first electrode is arranged on the positioning rod. Through the cooperation between first electrode and the wire for high-voltage electroscope can be with contact electrode and the contact of being surveyed the thing maximize as far as possible when test circuit or equipment, make the electric current transmission on equipment or the circuit to the electroscope on, make the area of contact electrode increase, the electric current homoenergetic of each part is through first electrode and contact electrode transmission to the electroscope on, simultaneously makes contact electrode when using, reduces the probability that stretches into split conductor inside, thereby increases the sensitivity of electroscope when the test.
Description
Technical Field
The invention relates to the technical field of circuit detection, in particular to a high-voltage electroscope for power equipment overhaul.
Background
The GD series high-voltage electroscope is suitable for 220V-500V, 6KV, 10KV, 35KV, 110KV, 220KV and 500KV AC power transmission and distribution lines and equipment, can be accurately and reliably tested in the daytime or at night, on indoor substation stations or outdoor overhead lines, and is a necessary safety tool for electric power systems and industrial and mining enterprises and electric departments.
With the development of the electric power system in China, the high-voltage power grid is more and more, the demand of the high-voltage electroscope is also increasing as a necessary safety tool for high-voltage maintenance, the working principle of the existing high-voltage electroscope is shown in figure 5, a worker holds the high-voltage electroscope by hand and contacts the tested electric equipment by using the contact of the electroscope, if the electric equipment has voltage, the other end of the high-voltage electroscope can physically react by the sound or light of a diode to judge whether the equipment is electrified or not, in the detection process of the high-voltage electroscope, the electric field distribution on the surface of the conductor and the periphery thereof is similar to the electric field distribution of a uniform electrified plane due to the large area of the conductor or the large humidity of the periphery of the conductor, and is a uniform and strong electric field, when the electroscope is selected to be in a middle position of a conductor with large area (such as a device wiring connection plate), the electroscope is in a uniform strong electric field, the axial potential gradient is small, the current flowing through a grounding capacitor is small, the working circuit cannot be started, the electroscope cannot give out sound and light indication, workers cannot know whether the device or the circuit has electricity or not, in order to increase the sensitivity of the electroscope in the prior art, the length of an electrode is increased, a contact electrode is overlong, the operation in the touch process is difficult, the contact electrode is easy to stretch into a split conductor, the effect of increasing the contact electrode cannot be achieved, the sensitivity of the high-voltage electroscope is further reduced, the normal test of the circuit is affected, and the hidden danger of the circuit in the test is increased.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides the high-voltage electroscope for power equipment overhaul, which has the advantages of high sensitivity, high test speed and safety in test and solves the problems of the background technology.
The invention provides the following technical scheme: the utility model provides a power equipment overhauls uses high-voltage electroscope, includes handle, cutting ferrule, contact electrode, self-checking switch, insulating cover, and the cutting ferrule is installed on the top of handle, and contact electrode installs on the top of cutting ferrule, and self-checking switch installs on the cutting ferrule, and insulating cover installs on the handle, install the positioning seat on the cutting ferrule, the inside rotation of positioning seat is connected with the locating lever, install first electrode on the locating lever, the last wire that has been coiled up of first electrode and contact electrode, contact electrode's end-to-end connection has spacing seat, spacing seat internal rotation is connected with the gag lever post, install the aluminium strip on the gag lever post, the internally mounted of cutting ferrule has the PCB board, the circuit has been laid on the PCB board, the outer wall of aluminium strip and the tip sliding connection of circuit, the end electricity of circuit is connected with the cable, the tip electricity of cable is connected with voltage-controlled loudspeaker.
Preferably, one end of the positioning rod penetrates through and extends to the outside of the positioning seat and is provided with threads, a nut positioned at the outside of the positioning seat is connected to the positioning rod in a threaded mode, and the diameter of the nut is larger than that of the joint of the positioning rod and the positioning seat.
Preferably, the first electrode is sleeved with a first magnetic sleeve, the contact electrode is sleeved with a second magnetic sleeve, the diameters of the first magnetic sleeve and the second magnetic sleeve are respectively equal to those of the first electrode and the contact electrode, and the first magnetic sleeve and the second magnetic sleeve are made of carbon steel magnets.
Preferably, the inner wall of the aluminum strip is connected with an insulating block, the side surface of the insulating block is fixedly connected with a baffle, the side surface of the baffle is fixedly connected with a spring, the side surface of the baffle is fixedly connected with a fixing rod, and the end part of the fixing rod extends to the inside of the spring.
The invention has the following beneficial effects:
1. this power equipment overhauls uses high-voltage electroscope for through the cooperation between first electrode and the wire for high-voltage electroscope can be with contact electrode and the contact of being surveyed the thing maximize as far as possible when test circuit or equipment, make the electric current transmission on equipment or the circuit to the electroscope on, make the area of contact electrode increase, the electric current homoenergetic of each part is through first electrode and contact electrode transmission to the electroscope on, simultaneously makes contact electrode when using, reduces the probability that stretches into split conductor inside, thereby increases the sensitivity of electroscope when the test.
2. This power equipment overhauls uses high-voltage electroscope, through the cooperation between first magnetic sleeve and the second magnetic sleeve for contact electrode and first electrode are when test equipment, increase the area of contact between electrode and the equipment as far as possible, make the electric current on the equipment transmit fast to on the electroscope, cooperation between aluminium strip and the circuit simultaneously, when making to have the electric current on the electroscope, the aluminium strip struts contact circuit to both sides by the same electric charge, constitute power return circuit, with electric current transmission to pressure-controlled loudspeaker on, remind the tester, thereby increase the security of electroscope when using.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the circuit configuration during detection;
FIG. 3 is an enlarged schematic view of the structure of an aluminum strip;
FIG. 4 is a schematic view of a positioning seat;
fig. 5 is a schematic diagram of the structure of a conventional electroscope.
In the figure: 1. a grip; 2. a cutting sleeve; 3. a contact electrode; 4. a self-checking switch; 5. an insulating sleeve; 6. a positioning seat; 7. a positioning rod; 8. a first electrode; 9. a nut; 10. a first magnetic sleeve; 11. a wire; 12. a second magnetic sleeve; 13. a limit seat; 14. a limit rod; 15. an aluminum strip; 16. a PCB board; 17. a line; 18. a cable; 19. a pressure controlled horn; 20. an insulating block; 21. a baffle; 22. and (3) a spring.
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, a high voltage electroscope for electric power equipment maintenance comprises a handle 1, a clamping sleeve 2, a contact electrode 3, a self-checking switch 4 and an insulating sleeve 5, wherein the clamping sleeve 2 is arranged at the top end of the handle 1, the contact electrode 3 is arranged at the top end of the clamping sleeve 2, the self-checking switch 4 is arranged on the clamping sleeve 2, the insulating sleeve 5 is arranged on the handle 1, a positioning seat 6 is arranged on the clamping sleeve 2, a positioning rod 7 is rotatably connected inside the positioning seat 6, the positioning seat and the positioning rod 7 are made of insulating materials, the stability of the electroscope in use is improved, a first electrode 8 is arranged on the positioning rod 7, a wire 11 is wound on the first electrode 8 and the contact electrode 3, the length of the wire 11 can be controlled in a self-defining way, the main function is that charges attached on the first electrode 8 are transmitted to the contact electrode 3, the end of the contact electrode 3 is connected with a limiting seat 13, the limiting seat 13 is rotationally connected with the limiting rod 14, the limiting seat 13 and the limiting rod 14 are made of conductive materials, so that charges on the contact electrode 3 can be rapidly transferred to the aluminum strip 15, the aluminum strip 15 can be spread at different angles, the larger the transmitted current is, the larger the spreading angle of the aluminum strip 15 is, the aluminum strip 15 is installed on the limiting rod 14, the PCB 16 is installed in the clamping sleeve 2, the circuit 17 is paved on the PCB 16, the circuit 17 and the pressure-controlled loudspeaker 19 are arranged in the prior art, the electrical connection between the circuit 16 and the circuit 17 is also in the prior art, the outer wall of the aluminum strip 15 is in sliding connection with the end part of the circuit 17, the tail end of the circuit 17 is electrically connected with the cable 18, the end part of the cable 18 is electrically connected with the pressure-controlled loudspeaker 19, when the aluminum strip 15 is contacted with the circuit 17, the PCB 16, the circuit 17, the cable 18 is communicated with the pressure-controlled horn 19.
One end of the positioning rod 7 penetrates through and extends to the outside of the positioning seat 6 and is provided with threads, a nut 9 positioned outside the positioning seat 6 is connected to the positioning rod 7 in a threaded manner, the diameter of the nut 9 is larger than that of the joint of the positioning rod 7 and the positioning seat 6, the first electrode 8 can rotate at different angles, the distance between the first electrode 8 and the contact electrode 3 can be increased or reduced, the contact between the electroscope and an object to be tested can be quickly achieved during testing, meanwhile, when large-scale equipment is tested, current can be concentrated on the contact electrode 3, the electroscope is quickly triggered, faults of the electroscope in use are reduced, safety of the electroscope in use is improved, and whether the line contains electricity or not can be accurately measured by the electroscope.
The first electrode 8 is sleeved with a first magnetic sleeve 10, the contact electrode 3 is sleeved with a second magnetic sleeve 12, the diameters of the first magnetic sleeve 10 and the second magnetic sleeve 12 are equal to those of the first electrode 8 and the contact electrode 3 respectively, the first magnetic sleeve 10 and the second magnetic sleeve 12 are made of carbon steel magnets, the first electrode 8 and the contact electrode 3 can be adsorbed on equipment, the contact area between the electrodes and the equipment is increased, current on the equipment is transmitted to an aluminum strip 15 through the electrodes, meanwhile, the current is concentrated together rapidly through the three electrodes, the strength of the current in transmission is increased, and the rapidity of the electroscope in starting is improved.
The inner wall of the aluminum strip 15 is connected with an insulating block 20, the side face of the insulating block 20 is fixedly connected with a baffle 21, the side face of the baffle 21 is fixedly connected with a spring 22, the side face of the baffle 21 is fixedly connected with a fixing rod, and the end part of the fixing rod extends to the inside of the spring 22, so that the aluminum strip 15 is stressed and cannot shake inwards, meanwhile, the aluminum strip 15 cannot move to two sides in use, the stability of the electroscope in use is improved, and the aluminum strip 15 can be opened to two sides only when electrified under the action of the spring 22.
The working principle is that a worker holds the handle 1, stretches the electroscope according to the length of a measured object, then straightens the electroscope, uses the contact electrode 3 to contact the measured object with the first electrode 8, charges on the measured object are transmitted to the limiting seat 13 and the aluminum strip 15, the aluminum strip 15 is spread towards two sides by the same charges attached to the aluminum strip, in the spreading process, the outer wall of the aluminum strip 15 gradually contacts the circuit 17 on the PCB 16, then the circuit 17 is communicated, the voltage-controlled loudspeaker 19 is electrified, and the operator is reminded of whether the measured object is electrified.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a power equipment overhauls uses high-voltage electroscope, includes handle (1), cutting ferrule (2), contact electrode (3), self-checking switch (4), insulating cover (5), and the top of holding (1) is installed in cutting ferrule (2), and contact electrode (3) are installed on the top of cutting ferrule (2), and self-checking switch (4) are installed on cutting ferrule (2), and insulating cover (5) are installed on holding (1), its characterized in that: install positioning seat (6) on cutting ferrule (2), the inside rotation of positioning seat (6) is connected with locating lever (7), install first electrode (8) on locating lever (7), connect wire (11) on first electrode (8) and contact electrode (3) upper roll, the end-to-end connection of contact electrode (3) has spacing seat (13), spacing seat (13) swivelling joint has gag lever post (14), install aluminium strip (15) on gag lever post (14), internally mounted of cutting ferrule (2) has PCB board (16), PCB board (16) upper berth has circuit (17), the outer wall of aluminium strip (15) and the tip sliding connection of circuit (17), the end electricity of circuit (17) is connected with cable (18), the tip electricity of cable (18) is connected with pressure-controlled loudspeaker (19),
The novel high-voltage power supply is characterized in that a first magnetic sleeve (10) is sleeved on the first electrode (8), a second magnetic sleeve (12) is sleeved on the contact electrode (3), the diameters of the first magnetic sleeve (10) and the second magnetic sleeve (12) are equal to those of the first electrode (8) and the contact electrode (3), and the first magnetic sleeve (10) and the second magnetic sleeve (12) are made of carbon steel magnets.
2. The high-voltage electroscope for power equipment maintenance according to claim 1, wherein: one end of the positioning rod (7) penetrates through and extends to the outside of the positioning seat (6) and is provided with threads, a nut (9) positioned at the outside of the positioning seat (6) is connected to the positioning rod (7) in a threaded mode, and the diameter of the nut (9) is larger than that of the joint of the positioning rod (7) and the positioning seat (6).
3. The high-voltage electroscope for power equipment maintenance according to claim 1, wherein: the inner wall of aluminum strip (15) is connected with insulating block (20), the side fixedly connected with baffle (21) of insulating block (20), the side fixedly connected with spring (22) of baffle (21), the side fixedly connected with dead lever of baffle (21), the tip of dead lever extends to the inside of spring (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692258.5A CN110376423B (en) | 2019-07-30 | 2019-07-30 | High-voltage electroscope for power equipment maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692258.5A CN110376423B (en) | 2019-07-30 | 2019-07-30 | High-voltage electroscope for power equipment maintenance |
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| Publication Number | Publication Date |
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| CN110376423A CN110376423A (en) | 2019-10-25 |
| CN110376423B true CN110376423B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910692258.5A Active CN110376423B (en) | 2019-07-30 | 2019-07-30 | High-voltage electroscope for power equipment maintenance |
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| CN (1) | CN110376423B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111751600A (en) * | 2020-06-09 | 2020-10-09 | 武汉启亦电气有限公司 | Insulated wire electroscope convenient to overhaul |
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|---|---|---|---|---|
| JP2003337144A (en) * | 2002-05-20 | 2003-11-28 | Fujikura Ltd | Method and apparatus for voltage detection in distribution line |
| CN2819225Y (en) * | 2005-08-11 | 2006-09-20 | 新乡铁路供电段职工技协服务部 | Special electroscope for contact network |
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| CN203232082U (en) * | 2013-03-12 | 2013-10-09 | 厦门加能电力科技有限公司 | Electroscope for overhead wires |
| CN105137161A (en) * | 2015-07-17 | 2015-12-09 | 恒同(中国)有限公司 | Digital composite functional high-voltage electroscope |
| JP2016027332A (en) * | 2014-07-01 | 2016-02-18 | 東日本旅客鉄道株式会社 | Non-contact electroscope and method for detecting electricity |
| CN207036937U (en) * | 2017-07-20 | 2018-02-23 | 武汉珞珈天铭电气科技有限公司 | A kind of high-tension cable maintenance voltage check device |
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| CN110058072A (en) * | 2018-01-18 | 2019-07-26 | 元壤实业（上海）有限公司 | A kind of electroscope with contact detection |
| CN210803574U (en) * | 2019-07-30 | 2020-06-19 | 国网河南省电力公司商丘供电公司 | High-voltage electroscope for power equipment maintenance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7176694B2 (en) * | 2005-02-23 | 2007-02-13 | Booker James R | Testing device and method of testing insulated handles used for servicing high voltage transmission lines |
-
2019
- 2019-07-30 CN CN201910692258.5A patent/CN110376423B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003337144A (en) * | 2002-05-20 | 2003-11-28 | Fujikura Ltd | Method and apparatus for voltage detection in distribution line |
| CN2819225Y (en) * | 2005-08-11 | 2006-09-20 | 新乡铁路供电段职工技协服务部 | Special electroscope for contact network |
| CN202362354U (en) * | 2011-12-08 | 2012-08-01 | 翟银华 | External-detection type coaxial dual-electrode high-and-low-voltage alternating current acousto-optic electroscope |
| CN203232082U (en) * | 2013-03-12 | 2013-10-09 | 厦门加能电力科技有限公司 | Electroscope for overhead wires |
| JP2016027332A (en) * | 2014-07-01 | 2016-02-18 | 東日本旅客鉄道株式会社 | Non-contact electroscope and method for detecting electricity |
| CN105137161A (en) * | 2015-07-17 | 2015-12-09 | 恒同(中国)有限公司 | Digital composite functional high-voltage electroscope |
| CN207036937U (en) * | 2017-07-20 | 2018-02-23 | 武汉珞珈天铭电气科技有限公司 | A kind of high-tension cable maintenance voltage check device |
| CN110058072A (en) * | 2018-01-18 | 2019-07-26 | 元壤实业（上海）有限公司 | A kind of electroscope with contact detection |
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| CN110376423A (en) | 2019-10-25 |
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