CN213364833U - 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device - Google Patents
10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device Download PDFInfo
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- CN213364833U CN213364833U CN202022096988.XU CN202022096988U CN213364833U CN 213364833 U CN213364833 U CN 213364833U CN 202022096988 U CN202022096988 U CN 202022096988U CN 213364833 U CN213364833 U CN 213364833U
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- Prior art keywords
- main unit
- ring main
- test
- sleeve
- withstand voltage
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- 238000012360 testing method Methods 0.000 title claims abstract description 96
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 239000012212 insulator Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229910018503 SF6 Inorganic materials 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device, which comprises an insulating sleeve; the closed end of the insulating sleeve is provided with a test line terminal matched with the ring main unit outlet sleeve. The utility model has the advantages that the structure is simpler, and the use and maintenance are more convenient by directly installing the test wire terminal at the closed end of the insulating sleeve; the open end of the insulating sleeve can completely wrap the outgoing line sleeve of the ring main unit, the caliber is designed according to the size of the sleeve, the insulating property of the sleeve is increased, and the problem that air is easy to puncture during testing is effectively solved; the testing wire terminal is provided with the electric conductor, when guaranteeing to be in effective contact with the looped netowrk cabinet outlet pipe casing mouth, its size can be designed into the size that is applicable to multiple looped netowrk cabinet outlet pipe casing screw-thread hole bore, and the suitability is strong.
Description
Technical Field
The utility model relates to an electrical test equipment field especially relates to a 10kV joins in marriage net looped netowrk cabinet switch fracture withstand voltage test auxiliary device.
Background
At present, the outdoor 10kV distribution network ring main units manufactured by various manufacturers have different specifications, most switches of the ring main units adopt sulfur hexafluoride gas as an insulating medium, contact poles of the switches are located in a gas chamber, and the sulfur hexafluoride gas can play a good arc extinguishing role in the moment of closing, power supplying and electrified opening and closing. In order to verify the gas insulation property of the sulfur hexafluoride and the reliability of equipment and ensure the personal safety and the power grid safety, the sulfur hexafluoride gas insulation property and the equipment reliability need to be tested by a test means before being installed and used. The national current standard, part 1 of high voltage test technology, general definition and test requirements, GB/T16927.1, part 2 of high voltage test technology, measurement System, GB/T16927.2, and the guide rule of field insulation test implementation, DL/T474.l-DL/T474.5 and related equipment standards are mandatory.
According to the requirement of an electrical device installation engineering electrical equipment handover test, fracture withstand voltage test needs to be carried out on the switch of the 10kV distribution network ring main unit after the installation of the network ring main unit falls to the ground. However, in the process of performing a fracture withstand voltage test, a worker often breaks down the air between the bushing and the cabinet body along with the gradual increase of the applied voltage, and the surface of the bushing generates intermittent severe discharge to the cabinet body, so that a test instrument trips and cannot be increased to the standard voltage. This will seriously influence the accuracy of test result, and the tester can not judge whether the withstand voltage characteristic of looped netowrk cabinet switch fracture is qualified according to the test result.
The patent with the publication number of CN111505464A discloses a semi-closed outdoor 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device, wherein a fixing frame matched with a test line terminal is required to be arranged in an insulating sleeve of the device, so that the structural design and the material cost are increased; meanwhile, the installation rod of the test wire terminal is provided with a conductive contact body which is matched with a ring main unit wire outlet sleeve for use, the conductive contact body is required to be pulled by means of insulation, the structure is complex, and the use is inconvenient.
Therefore, a novel 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a 10kV that simple structure, convenient to use join in marriage net looped netowrk cabinet switch fracture withstand voltage test auxiliary device is provided, the problem of easy puncture air when effectively solving the experiment.
In order to solve the technical problem, the utility model discloses a technical scheme be: the auxiliary device for the withstand voltage test of the switch fracture of the 10kV distribution network ring main unit comprises an insulating sleeve;
the closed end of the insulating sleeve is provided with a test line terminal matched with the ring main unit outlet sleeve.
In the utility model discloses a preferred embodiment, the test wire terminal includes test wire fixed guide arm, a tip of test wire fixed guide arm be equipped with insulating sleeve's blind end constitutes can dismantle the complex base, the other end of test wire fixed guide arm is equipped with the electric conductor that supplementary looped netowrk cabinet carries out switch fracture withstand voltage test.
Furthermore, a bump is arranged at one end, far away from the base, of the test wire fixing guide rod, a spring is arranged in the middle of the test wire fixing guide rod, one end of the spring abuts against the base, the other end of the spring abuts against the electric conductor, and the electric conductor is located between the bump and the spring.
Furthermore, the test wire terminal also comprises a test wire, and one end of the test wire is connected with the electric conductor.
Furthermore, the size of the electric conductor is larger than the aperture of the outgoing line sleeve of the ring main unit.
Furthermore, the closed end of the insulating sleeve is provided with a first through hole matched with the base.
Furthermore, the closed end of the insulating sleeve is also provided with a second through hole for the test wire to pass through.
In a preferred embodiment of the present invention, the aperture of the open end of the insulating sleeve is set according to the size of the outgoing line sleeve of the ring main unit.
Furthermore, the test wire fixing guide rod and the base are insulators.
The utility model has the advantages that:
(1) the utility model has the advantages that the structure is simpler, and the use and maintenance are more convenient by directly installing the test wire terminal at the closed end of the insulating sleeve; the open end of the insulating sleeve can completely wrap the outgoing line sleeve of the ring main unit, the caliber is designed according to the size of the sleeve, the insulating property of the sleeve is increased, and the problem that air is easy to puncture during testing is effectively solved;
(2) test line terminal is provided with the electric conductor, when guaranteeing to be qualified for the next round of competitions the effective contact of casing mouth with the looped netowrk cabinet, the size that is applicable to multiple looped netowrk cabinet outlet casing screw thread bore can be designed into to its size, and the suitability is strong.
Drawings
Fig. 1 is a schematic view of a cross-sectional structure of the insulating sleeve in the auxiliary device for the break voltage withstand test of the switch of the 10kV distribution network ring main unit;
FIG. 2 is a left side view of the insulative sleeve;
FIG. 3 is a right side view of the insulative sleeve;
FIG. 4 is a schematic view of the structure of the test line terminal;
FIG. 5 is a schematic cross-sectional view of the base;
FIG. 6 is a schematic structural view of the test wire fixing guide rod;
fig. 7 is a schematic cross-sectional structure view of the ring main unit outgoing line sleeve;
fig. 8 is a use state diagram of the test auxiliary device and the ring main unit outgoing line sleeve.
The parts in the drawings are numbered as follows: 1. the ring main unit comprises an insulating sleeve, 11, a closed end, 12, a first through hole, 13, a second through hole, 2, a test wire terminal, 21, a test wire fixing guide rod, 211, a bump, 22, a test wire, 23, a base, 231, a groove, 24, a conductor, 241, a connecting terminal, 25, a spring, 3, a ring main unit outlet sleeve, 31 and a ring main unit outlet sleeve opening.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1 to 4, an embodiment of the present invention includes:
the utility model provides a 10kV joins in marriage net looped netowrk cabinet switch fracture withstand voltage test auxiliary device, includes insulating sleeve 1, the blind end 11 of insulating sleeve 1 is equipped with and looped netowrk cabinet outlet sleeve 3 matched with test line terminal 2.
Referring to fig. 4, the test wire terminal 2 includes a test wire fixing guide rod 21 and a test wire 22, a base 23 detachably matched with the closed end 11 of the insulating sleeve 1 is disposed at one end of the test wire fixing guide rod 21, a conductive body 24 assisting the ring main unit to perform a switch fracture withstand voltage test is disposed at the other end of the test wire fixing guide rod 21, and the size of the conductive body 24 is larger than the aperture of the ring main unit outlet sleeve 3. In this embodiment, the conductive body 24 is a copper ball, and a through hole is formed in the middle of the copper ball and is installed on the test wire fixing guide rod 21. And the diameter of the copper ball is larger than the aperture of the ring main unit outlet sleeve 3, so that the copper ball can be effectively contacted with the ring main unit outlet sleeve opening 31, and meanwhile, the copper ball can be designed to be suitable for the threaded hole apertures of various ring main unit outlet sleeves 3, and the applicability is strong. Preferably, the diameter range of the copper ball is designed to be 16-25 mm according to the aperture of the ring main unit outlet sleeve 3. Referring to fig. 5, a groove 231 is formed in the middle of the base 23 and used for fixing the test wire fixing guide rod 21, and the base 23 and the test wire fixing guide rod 21 may be fixedly connected, for example, by welding, pouring, or detachably connected, for example, by fastening, screwing, or the like.
Referring to fig. 6, a bump 211 is disposed at one end of the test wire fixing guide rod 21 away from the base 23, a spring 25 is mounted at the middle of the test wire fixing guide rod 21, one end of the spring 25 abuts against the base 23, the other end of the spring 25 abuts against the conductor 24, and the conductor 24 is located between the bump 211 and the spring 25. The spring 25 serves to compressively support the electrical conductor 24 when the electrical conductor 24 is in contact with the looped network cabinet outlet bushing opening as shown in fig. 7.
The test wire fixing guide rod 21 and the base 23 are both insulators. Preferably, the test wire fixing guide rod 21 is made of tetrafluoroethylene, and the base 23 is made of rubber.
One end of the test wire 22 is connected to the conductor 24, and in this embodiment, the copper ball is provided with a connection terminal 241 for connecting to the test wire 22, so as to facilitate replacement of the test wire 22.
The closed end 11 of the insulating sleeve 1 is provided with a first through hole 12 matched with the base 23. In this embodiment, the base 23 is an inverted cone, the first through hole 12 is also an inverted cone, and the sizes of the two through holes are the same.
Furthermore, the closed end 11 of the insulating sleeve 1 is also provided with a second through hole 13 for passing the test wire 22.
The caliber of the opening end of the insulating sleeve 1 is set according to the size of the ring main unit wire outlet sleeve 3, the opening end of the insulating sleeve 1 can be guaranteed to be wrapped on the ring main unit wire outlet sleeve 3, the insulativity of the sleeve is increased, and the problem that air is easy to puncture during testing is effectively solved.
Preferably, the insulating sleeve 1 is made of silica gel.
The assembling method of the device is simple, and the test wire terminal 2 can be directly inserted into the closed end 11 of the insulating sleeve 1, so that the base 23 at one end of the test wire fixing guide rod 21 is completely inserted into the first through hole 12 of the insulating sleeve 1, and meanwhile, the test wire 22 penetrates out of the second through hole 13 of the insulating sleeve 1.
When the device is used, the bump 211 of the test wire fixing guide rod 21 is placed into the ring main unit outlet sleeve 3 in combination with fig. 8, and because the length of the bump 211 is smaller than the depth of the ring main unit outlet sleeve opening 31, the electric conductor 24 is abutted against the ring main unit outlet sleeve opening 31 by the elastic force of the spring 25, so that effective electric conduction is ensured. One end of the test wire 22 is connected with the conductor 24, and the other end passes through the second through hole 13 of the insulating sleeve 1 and is connected with a pressure gauge to perform a switch fracture withstand voltage test.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. A10 kV distribution network ring main unit switch fracture withstand voltage test auxiliary device is characterized by comprising an insulating sleeve;
the closed end of the insulating sleeve is provided with a test wire terminal matched with the ring main unit outlet sleeve;
the test wire terminal comprises a test wire fixing guide rod, a base which is detachably matched with the closed end of the insulating sleeve is arranged at one end of the test wire fixing guide rod, and a conductive body which assists the ring main unit to perform a switch fracture withstand voltage test is arranged at the other end of the test wire fixing guide rod.
2. The 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device according to claim 1, wherein a bump is arranged at one end, away from the base, of the test wire fixing guide rod, a spring is arranged in the middle of the test wire fixing guide rod, one end of the spring abuts against the base, the other end of the spring abuts against the electric conductor, and the electric conductor is located between the bump and the spring.
3. The 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device according to claim 1, wherein the test line terminal further comprises a test line, and one end of the test line is connected with the electric conductor.
4. The 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device according to any one of claims 1 to 3, wherein the size of the conductor is larger than the aperture of a ring main unit outgoing line sleeve.
5. The 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device according to claim 1, wherein a first through hole matched with the base is formed in the closed end of the insulating sleeve.
6. The 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device according to claim 3, wherein the closed end of the insulating sleeve is further provided with a second through hole through which a test wire can pass conveniently.
7. The 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device according to claim 1, wherein a caliber of an opening end of the insulating sleeve is set according to a size of a ring main unit outgoing line sleeve.
8. The 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device according to claim 1, wherein the test wire fixing guide rod and the base are insulators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022096988.XU CN213364833U (en) | 2020-09-22 | 2020-09-22 | 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022096988.XU CN213364833U (en) | 2020-09-22 | 2020-09-22 | 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213364833U true CN213364833U (en) | 2021-06-04 |
Family
ID=76154716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022096988.XU Active CN213364833U (en) | 2020-09-22 | 2020-09-22 | 10kV distribution network ring main unit switch fracture withstand voltage test auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213364833U (en) |
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2020
- 2020-09-22 CN CN202022096988.XU patent/CN213364833U/en active Active
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