CN204515071U - A kind of cable access device of Partial Discharge Detection equipment - Google Patents
A kind of cable access device of Partial Discharge Detection equipment Download PDFInfo
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- CN204515071U CN204515071U CN201520169302.1U CN201520169302U CN204515071U CN 204515071 U CN204515071 U CN 204515071U CN 201520169302 U CN201520169302 U CN 201520169302U CN 204515071 U CN204515071 U CN 204515071U
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000009413 insulation Methods 0.000 claims abstract description 52
- 230000001681 protective effect Effects 0.000 claims abstract description 24
- 238000003032 molecular docking Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 11
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 240000005572 Syzygium cordatum Species 0.000 description 1
- 235000006650 Syzygium cordatum Nutrition 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a kind of cable access device of Partial Discharge Detection equipment, comprises cable splice and cable outer cover; Cable splice comprises insulation course sleeve pipe, screw thread clamping sleeve, insulation protective jacket and conduction core bar; Insulation course sleeve pipe is combined with two clamping screws; The screw rod end of clamping screw is provided with arc cover plate; Insulation protective jacket fixed cover is located on conduction core bar, and insulation protection cover is provided with flange collar; One end of screw thread clamping sleeve screws on the other end of insulation course sleeve pipe, and insulation protective jacket inserts in screw thread clamping sleeve, and the other end of screw thread clamping sleeve fastens flange collar; Cable outer cover comprises arc-shaped cover, arc lower cover and fastening bolt; Upper arc-shaped cover and arc lower cover are docked by hinge; Upper arc-shaped cover and arc lower cover tighten together by fastening bolt; The extrados of arc lower cover is provided with binding post.This cable access device can access tested cable fast and without damage, and structure is reliable and contact is good, has good application prospect.
Description
Technical field
The utility model relates to a kind of cable access device, especially a kind of cable access device for Partial Discharge Detection equipment.
Background technology
In Construction of Intercity Network, power cable takes up an area less with it, the performance such as attractive in appearance, reliable, one of main mode becoming electric power transfer, wherein based on the twisted polyethylene cable of 35kV and following grade.Along with the fast development of electrical network, distribution, the application of cable is also more and more extensive.The cable laying rate in a city also becomes the important symbol of a measurement Construction of Intercity Network level gradually.
Cable prophylactic tria is the important channel finding cable incipient fault, and megger test is the most frequently used a kind of test method, can find insulation defect by the change of insulation resistance.But it is low that the shortcoming of insulation measurement is test voltage, be difficult to the potentiality defect finding cable, the cable insulation problem of aging especially caused water tree is difficult to diagnosis, needs to judge its state in conjunction with other pilot project analyses.DC voltage withstand test evaluates the most straightforward procedure (testing equipment is light) of cable insulation state.In standard comparatively early, DC experiment is used for the reception test after cable laying.But along with the widespread use of rubber plastic cable in electric line, find that DC voltage withstand test exists obvious defect on detection rubber plastic cable after deliberation.Insulating resistance of cable and withstand voltage test can only reflect the quality of cable insulation general status, more to insulate the aging development trend of situation, cable and need the relevant informations such as the measure taked, also will be obtained by Partial Discharge Detection about cable.
But existing Partial Discharge Detection equipment is when by tested cable detection circuit for access, needs to tear down the test side of detection streamer, damage can be caused to the protective seam of tested cable, also reduce the access efficiency of cable simultaneously.
Summary of the invention
To be existing Partial Discharge Detection equipment when accessing cable can cause cable two ends the technical problems to be solved in the utility model damages and the efficiency of access is not high.
In order to solve the problems of the technologies described above, the utility model provides a kind of cable access device of Partial Discharge Detection equipment, comprises the cable splice and cable outer cover that are connected with Partial Discharge Detection equipment two terminals respectively; Cable splice comprises columnar insulation course sleeve pipe, screw thread clamping sleeve, insulation protective jacket and conduction core bar; One end tube wall of insulation course sleeve pipe is combined with two clamping screws, two clamping screws are positioned in the same radial line of insulation course sleeve pipe; The equal rotary type of screw rod end of two clamping screws is provided with one piece of arc cover plate, and arc cover plate is positioned at insulation course sleeve pipe, and the intrados of two pieces of arc cover plates is relative; Insulation protective jacket fixed cover is located on conduction core bar, and excircle in the middle part of insulation protective jacket is provided with a circle flange collar; One end of screw thread clamping sleeve screws on the other end of insulation course sleeve pipe, and insulation protective jacket inserts in screw thread clamping sleeve, and the other end of screw thread clamping sleeve fastens flange collar; The terminals of conduction core bar stretch out outside insulation protective jacket, and contact jaw stretches in insulation course sleeve pipe; Cable outer cover comprises arc-shaped cover, arc lower cover and at least one fastening bolt; One lateral edges of upper arc-shaped cover and arc lower cover is docked by pivot formula, and opposite side edge is equipped with vertical flange; Upper arc-shaped cover tightens together with the vertical flange on arc lower cover by fastening bolt; The extrados of arc lower cover is provided with binding post.
Adopt insulation course casing pipe sleeve to be located on cable detection end, make the contact jaw of conduction core bar contact with the core of cable thus be accessed by cable, improve the access efficiency of cable, and without the need to tearing down the protective seam of cable; Adopt two blocks of arc-shaped cover plates to grip, effectively cable access device can not only be fixed on cable detection end, and can regulate according to the thickness of cable, improve the universality of cable access device; Adopt screw thread clamping sleeve to screw and promote the core that conductive cores masthead lives tested cable, contact effect can be strengthened, improve the degree of accuracy detected; Adopt insulation protective jacket that the electric signal conducted electricity on core bar can be prevented to be interfered, further increase the degree of accuracy of detection; In employing, arc-shaped cover and arc lower cover form complete cable outer cover rapidly and are wrapped on cable, improve detection efficiency; Adopt fastening bolt can regulate the spacing of upper arc-shaped cover and arc lower cover, make cable outer cover be applicable to the cable detection of more polytypic.
As further improvement of the utility model scheme, the intrados of arc cover plate is at least provided with an anti-skidding rib.Adopt anti-skidding rib can prevent arc cover plate from coming off from the test side of tested cable, improve the reliability of device.
As further improvement of the utility model scheme, the contact jaw of conduction core bar is provided with conical head.Adopt conical head effectively can improve the contact effect of the core of conduction core bar and tested cable, improve the degree of accuracy detected.
As further improvement of the utility model scheme, the other end of screw thread clamping sleeve is provided with hexagon head.Hexagon head is adopted can conveniently to rotate screw thread clamping sleeve.
The beneficial effects of the utility model are: (1) adopts insulation course casing pipe sleeve to be located on the test side of tested cable, the contact jaw of conduction core bar is made to contact with the core of cable thus be accessed by cable, improve the access efficiency of cable, and without the need to tearing down the protective seam of cable; (2) adopt two blocks of arc-shaped cover plates to grip, effectively cable access device can not only be fixed on cable detection end, and can regulate according to the thickness of cable, improve the universality of cable access device; (3) adopt screw thread clamping sleeve to screw and promote the core that conductive cores masthead lives tested cable, contact effect can be strengthened, improve the degree of accuracy detected; (4) adopt insulation protective jacket that the electric signal conducted electricity on core bar can be prevented to be interfered, further increase the degree of accuracy of detection; (5) in employing, arc-shaped cover and arc lower cover form complete cable outer cover rapidly and are wrapped on cable, improve detection efficiency; (6) adopt fastening bolt can regulate the spacing of upper arc-shaped cover and arc lower cover, make cable outer cover be applicable to the cable detection of more polytypic.
Accompanying drawing explanation
Fig. 1 is using state figure of the present utility model;
Fig. 2 is cable splice structural representation of the present utility model;
Fig. 3 is A-A place cut-open view in Fig. 2;
Fig. 4 is right view of the present utility model;
Fig. 5 is left view of the present utility model;
Fig. 6 is cable cover structure schematic diagram of the present utility model.
Embodiment
As shown in figures 2-6, the cable access device of Partial Discharge Detection equipment of the present utility model comprises: the cable splice be connected with Partial Discharge Detection equipment two terminals respectively and cable outer cover; Cable splice comprises columnar insulation course sleeve pipe 1, screw thread clamping sleeve 2, insulation protective jacket 4 and conduction core bar 5; One end tube wall of insulation course sleeve pipe 1 is combined with two clamping screws, 6, two clamping screws 6 to be positioned in the same radial line of insulation course sleeve pipe 1; Be provided with one piece of arc cover plate 7 at the equal rotary type of screw rod end of two clamping screws 6, arc cover plate 7 is positioned at insulation course sleeve pipe 1, and the intrados of two pieces of arc cover plates 7 is relative; Insulation protective jacket 4 fixed cover is located on conduction core bar 5, and excircle in the middle part of insulation protective jacket 4 is provided with a circle flange collar 9; One end of screw thread clamping sleeve 2 screws on the other end of insulation course sleeve pipe 1, and insulation protective jacket 4 inserts in screw thread clamping sleeve 2, and the other end of screw thread clamping sleeve 2 fastens flange collar 9; The terminals of conduction core bar 5 stretch out outside insulation protective jacket 4, and contact jaw stretches in insulation course sleeve pipe 1; Cable outer cover comprises arc-shaped cover 13, arc lower cover 14 and at least one fastening bolt 12; One lateral edges of upper arc-shaped cover 13 and arc lower cover 14, by the docking of hinge 17 swing type, is equipped with vertical flange 15 at opposite side edge; Upper arc-shaped cover 13 tightens together with the vertical flange 15 on arc lower cover 14 by fastening bolt 12; The extrados of arc lower cover 14 is provided with binding post 16; The intrados of arc cover plate 7 is provided with three anti-skidding ribs 8; The contact jaw of conduction core bar 5 is provided with conical head 10; The other end of screw thread clamping sleeve 2 is provided with hexagon head 3.
As shown in Figure 1, the cable access device of Partial Discharge Detection equipment of the present utility model in use, first the insulation course sleeve pipe 1 of cable splice is set on the test side of tested cable 11, and turn clamping screw 6 makes arc cover plate 7 be compressed on the protective seam of tested cable 11, turn hexagon head 3 again, screw thread clamping sleeve 2 is made to screw in insulation course sleeve pipe 1, and drive the contact jaw of conduction core bar 5 to withstand on the core of tested cable 11, and then the terminals of the conduction core bar 5 of cable splice are connected on terminals of Partial Discharge Detection equipment; Again upper arc-shaped cover 13 and arc lower cover 14 being formed complete cable outer cover is wrapped on cable, and locked by fastening bolt 12, again binding post 16 is connected on another terminals of Partial Discharge Detection equipment, thus realizes the access of tested cable 11, carry out Partial Discharge Detection.
Claims (4)
1. a cable access device for Partial Discharge Detection equipment, is characterized in that: comprise the cable splice and cable outer cover that are connected with Partial Discharge Detection equipment two terminals respectively; Described cable splice comprises columnar insulation course sleeve pipe (1), screw thread clamping sleeve (2), insulation protective jacket (4) and conduction core bar (5); One end tube wall of described insulation course sleeve pipe (1) is combined with two clamping screws (6), two clamping screws (6) are positioned in the same radial line of insulation course sleeve pipe (1); The equal rotary type of screw rod end of two clamping screws (6) is provided with one piece of arc cover plate (7), described arc cover plate (7) is positioned at insulation course sleeve pipe (1), and the intrados of two pieces of arc cover plates (7) is relative; Described insulation protective jacket (4) fixed cover is located in conduction core bar (5), and is provided with a circle flange collar (9) on the excircle at insulation protective jacket (4) middle part; One end of described screw thread clamping sleeve (2) screws on the other end of insulation course sleeve pipe (1), described insulation protective jacket (4) inserts in screw thread clamping sleeve (2), and the other end of screw thread clamping sleeve (2) fastens flange collar (9); The terminals of described conduction core bar (5) stretch out insulation protective jacket (4) outward, and contact jaw stretches in insulation course sleeve pipe (1); Described cable outer cover comprises arc-shaped cover (13), arc lower cover (14) and at least one fastening bolt (12); One lateral edges of described upper arc-shaped cover (13) and arc lower cover (14) is by the docking of hinge (17) swing type, and opposite side edge is equipped with vertical flange (15); Upper arc-shaped cover (13) tightens together with the vertical flange (15) on arc lower cover (14) by described fastening bolt (12); The extrados of described arc lower cover (14) is provided with binding post (16).
2. the cable access device of Partial Discharge Detection equipment according to claim 1, is characterized in that: the intrados of described arc cover plate (7) is at least provided with an anti-skidding rib (8).
3. the cable access device of Partial Discharge Detection equipment according to claim 1 and 2, is characterized in that: the contact jaw of described conduction core bar (5) is provided with conical head (10).
4. the cable access device of Partial Discharge Detection equipment according to claim 1 and 2, is characterized in that: the other end of described screw thread clamping sleeve (2) is provided with hexagon head (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169302.1U CN204515071U (en) | 2015-03-24 | 2015-03-24 | A kind of cable access device of Partial Discharge Detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169302.1U CN204515071U (en) | 2015-03-24 | 2015-03-24 | A kind of cable access device of Partial Discharge Detection equipment |
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| Publication Number | Publication Date |
|---|---|
| CN204515071U true CN204515071U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520169302.1U Active CN204515071U (en) | 2015-03-24 | 2015-03-24 | A kind of cable access device of Partial Discharge Detection equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671259A (en) * | 2021-07-07 | 2021-11-19 | 神宇通信科技股份公司 | Rapid opening and closing device for testing insulation standing wave of inner conductor of coaxial cable |
| CN118191524A (en) * | 2024-03-13 | 2024-06-14 | 江苏长虹智能装备股份有限公司 | Conductive particle coated insulation voltage withstand test method |
-
2015
- 2015-03-24 CN CN201520169302.1U patent/CN204515071U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113671259A (en) * | 2021-07-07 | 2021-11-19 | 神宇通信科技股份公司 | Rapid opening and closing device for testing insulation standing wave of inner conductor of coaxial cable |
| CN113671259B (en) * | 2021-07-07 | 2024-05-28 | 神宇通信科技股份公司 | Quick opening and closing device for coaxial cable inner conductor insulation standing wave test |
| CN118191524A (en) * | 2024-03-13 | 2024-06-14 | 江苏长虹智能装备股份有限公司 | Conductive particle coated insulation voltage withstand test method |
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