CN113960432A - Cable joint partial discharge current detection device - Google Patents
Cable joint partial discharge current detection device Download PDFInfo
- Publication number
- CN113960432A CN113960432A CN202111276188.9A CN202111276188A CN113960432A CN 113960432 A CN113960432 A CN 113960432A CN 202111276188 A CN202111276188 A CN 202111276188A CN 113960432 A CN113960432 A CN 113960432A
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- plate
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- cable
- board
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- 238000001514 detection method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 22
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 22
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 22
- 241001330002 Bambuseae Species 0.000 claims description 21
- 239000011425 bamboo Substances 0.000 claims description 21
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 241000209128 Bambusa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
-
- 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
-
- 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
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a cable joint partial discharge current detection device which comprises an installation cylinder, wherein the installation cylinder is sleeved outside a cable joint, the central axis of the cable joint and the central axis of the installation cylinder are positioned on the same straight line, a plurality of partial discharge sensors are circumferentially installed on the inner side wall of the installation cylinder, and fixing mechanisms for fixing the installation cylinder on a cable are arranged on two sides of the installation cylinder.
Description
Technical Field
The invention relates to the technical field of cable joint partial discharge current, in particular to a cable joint partial discharge current detection device.
Background
The damage of partial discharge of a cable joint is large, the electrical performance of a cable insulation medium can be continuously aged under the action of partial discharge, and the high voltage can puncture the insulation layer after a long time, so that the explosion accident of the joint or the terminal can be caused, and a large-area power failure event can be caused. There are many reasons for the partial discharge, such as the non-standard manufacture of the connector, the quality problem of the connector accessories, and the long-time overload operation of some lines, so a detection device capable of detecting the operation condition of the cable connector in real time is needed to help the staff to monitor the health condition of the power cable, thereby preventing accidents caused by the partial discharge.
Disclosure of Invention
In view of the above, the present invention provides a cable joint partial discharge current detection apparatus, which is used for detecting the operation condition of a cable joint in real time, finding out a partial discharge current in time, and processing a cable joint with problems at the highest speed.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a current detection device is put in cable joint office, includes an installation section of thick bamboo, an installation section of thick bamboo cup joints outside cable joint, cable joint's axis is in on the same straight line with the axis of an installation section of thick bamboo, it puts the sensor to be a plurality of offices of circumference form installation on the inside wall of an installation section of thick bamboo, installation section of thick bamboo both sides set up will an installation section of thick bamboo fixes the fixed establishment on the cable.
Further, the installation cylinder is formed by two half symmetrical articulations, half a section of thick bamboo two of a quiet connection in a half both sides, fixed establishment is including setting up a plurality of compressing tightly the strip on half a section of thick bamboo two, compress tightly the inner wall and the cable conductor of strip and laminate mutually, threaded connection nut on half a section of thick bamboo two, the nut is formed by two half nut articulations, set up on the outer peripheral face that compresses tightly the strip with nut internal thread assorted external screw thread, when the nut was twisted and is compressed tightly the strip, compress tightly the strip and compress tightly on the surface of cable.
Further, half a section of thick bamboo one opposite side sets up diaphragm one, half nut opposite side sets up diaphragm two, can dismantle the connection through bolt one between the diaphragm one, can dismantle the connection through bolt two between the diaphragm two, set up the locating plate on the diaphragm one, set up on the diaphragm two with locating plate assorted recess, when the locating plate is located the recess, the internal thread of nut and the external screw thread interlock on two half a section of thick bamboos two mutually.
Furthermore, insert the patch panel one in diaphragm one, insert the patch panel two in the diaphragm two, it is not during when mounting bolt, the picture peg two is located diaphragm one and diaphragm two, mounting bolt is during on the diaphragm one, picture peg two is located diaphragm two, picture peg one is located diaphragm one, the nut can rotate.
Furthermore, set up compression spring between two one ends of picture peg and the diaphragm two, the edges and corners of two other end lower parts of picture peg are amputated, form slope two, set up extension spring between a picture peg middle part and the diaphragm one, a picture peg one end contacts with two other ends of picture peg, the edges and corners on one other end upper portion of picture peg are amputated, form slope one, slope one is located and supplies bolt one male through-hole.
Furthermore, the mounting cylinder, the half cylinder II, the pressing strip and the nut are made of insulating materials.
The invention has the beneficial effects that:
1. the invention provides a partial discharge current detection device for a cable joint, which is characterized in that a half cylinder I is opened, the cable joint is placed in the half cylinder I and then closed, a nut is installed, the nut is screwed towards the direction of a pressing strip, the pressing strip tightly embraces a cable, the installation cylinder is fixed on the cable, a plurality of partial discharge sensors are circumferentially distributed on the periphery of the cable joint, multi-angle detection is realized, the anti-interference capability is strong, and partial discharge can be quickly and accurately measured.
2. When no mounting bolt is arranged, the transverse plate I and the transverse plate II which are positioned below are connected into a whole, the mounting cylinder, the half cylinder I and the nut are integrated, the nut is not required to be mounted independently, and the practicability is higher.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of the installation of the present invention;
FIG. 3 is a schematic exploded view of FIG. 1;
FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 5 is a schematic view of the internal structure of the first transverse plate and the second transverse plate when the bolts are not installed;
FIG. 6 is a schematic view of the internal structure of the transverse plate I and the transverse plate II when the first bolt is installed;
the device comprises a mounting cylinder 1, a partial discharge sensor 2, a half cylinder II 3, a pressing strip 4, a half nut 5, a cross plate I6, a cross plate II 7, a bolt I8, a bolt II 9, a positioning plate 10, a groove 11, a plate I12, a plate II 13, a compression spring 14 and an extension spring 15.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope 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.
Example one
As shown in fig. 1-3, a first embodiment of the present invention is a cable joint partial discharge current detection device, which includes an installation cylinder 1, where the installation cylinder 1 is formed by symmetrically hinging two half cylinders one by one through a hinge, a transverse plate one 6 is integrally formed on the other side of the half cylinder one, two through holes are punched between the transverse plates one 6, a bolt one 8 is inserted into the through hole, a nut is installed at the other end of the bolt one 8, and as shown in fig. 3, three partial discharge sensors 2 are installed on the inner side wall of the installation cylinder 1 in a circumferential manner. Half a first both sides static connection half a section of thick bamboo two 3, 1 both sides of an installation section of thick bamboo set up the fixed establishment who fixes an installation section of thick bamboo 1 on the cable, fixed establishment includes integrated into one piece two on half a section of thick bamboo two 3 compress tightly strip 4, the inner wall that compresses tightly strip 4 laminates with the cable conductor mutually, threaded connection nut on half a section of thick bamboo two 3, the nut is formed by two half nuts 5 are articulated, half nut 5 opposite side integrated into one piece diaphragm two 7, can dismantle the connection through bolt two 9 between the diaphragm two 7, the mounting means of bolt two 9 is the same with bolt one 8. And external threads matched with the internal threads of the nut are processed on the peripheral surface of the pressing strip 4. Integrally formed locating plate 10 is arranged on transverse plate I6, groove 11 matched with locating plate 10 is processed on transverse plate II 7, when locating plate 10 is located in groove 11, the internal thread of nut is occluded with the external thread on two half cylinders II 3, when nut is screwed on compressing strip 4, compressing strip 4 is compressed tightly on the outer surface of cable, as shown in fig. 2, fixing installation cylinder 1 on cable, installation cylinder 1 is sleeved outside cable joint at the moment, and the central axis of cable joint and the central axis of installation cylinder 1 are located on the same straight line. The installation cylinder 1, the half cylinder II 3, the pressing strip 4 and the nut are made of insulating materials, and safety of workers is protected.
Example two
As shown in fig. 4-6, a second embodiment of the present invention is different from the first embodiment in that a first insertion plate 12 is inserted into a first transverse plate 6, as shown in fig. 4, the first insertion plate 12 is inserted into the first transverse plate 6, a tension spring 15 is bonded between the middle of the first insertion plate 12 and the first transverse plate 6, an edge of the upper part of the other end of the first insertion plate 12 is cut off to form a first slope, the first slope is located in a through hole for inserting a first bolt 8, and after the first bolt 8 is inserted into the through hole, the first insertion plate 12 is pushed to move leftward; a second inserting plate 13 is inserted in the second transverse plate 7, a compression spring 14 is bonded between one end of the second inserting plate 13 and the second transverse plate 7, the edge angle of the lower part of the other end of the second inserting plate 13 is cut off to form a second slope, and one end of the first inserting plate 12 is in contact with the other end of the second inserting plate 13.
When the first transverse plate 6 is not provided with the first bolt 8, as shown in fig. 5, the second inserting plate 13 is positioned between the first transverse plate 6 and the second transverse plate 7, and the first transverse plate 6 and the second transverse plate 7 positioned below are connected into a whole, so that the installation barrel 1 and the nut are convenient to install; when the first bolt 8 is installed on the first transverse plate 6, as shown in fig. 6, the first inserting plate 12 pushes the second inserting plate 13, so that the second inserting plate 13 is located in the second transverse plate 7, the first inserting plate 12 is still located in the first transverse plate 6, and the nut can rotate at the moment.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The utility model provides a current detection device is put in cable joint office, a serial communication port, including installation section of thick bamboo (1), installation section of thick bamboo (1) cup joints outside cable joint, cable joint's axis is in on the same straight line with the axis of installation section of thick bamboo (1), it puts sensor (2) to be a plurality of offices of circumference form installation on the inside wall of installation section of thick bamboo (1), installation section of thick bamboo (1) both sides set up will installation section of thick bamboo (1) fixes the fixed establishment on the cable.
2. The partial discharge current detection device for the cable joint according to claim 1, wherein the mounting cylinder (1) is formed by symmetrically hinging two half cylinders, the two sides of the half cylinder are statically connected with the half cylinder II (3), the fixing mechanism comprises a plurality of pressing strips (4) arranged on the half cylinder II (3), the inner wall of each pressing strip (4) is attached to a cable, the half cylinder II (3) is in threaded connection with a nut, the nut is formed by hinging two half nuts (5), external threads matched with internal threads of the nut are arranged on the outer peripheral surface of each pressing strip (4), and when the pressing strips (4) are screwed on the nut, the pressing strips (4) are pressed on the outer surface of the cable.
3. The partial discharge current detection device for the cable connector according to claim 2, wherein the first side of the first half cylinder is provided with a first transverse plate (6), the other side of the half nut (5) is provided with a second transverse plate (7), the first transverse plate (6) is detachably connected with the first transverse plate (8) through a first bolt (8), the second transverse plate (7) is detachably connected with the second transverse plate (7) through a second bolt (9), the first transverse plate (6) is provided with a positioning plate (10), the second transverse plate (7) is provided with a groove (11) matched with the positioning plate (10), and when the positioning plate (10) is located in the groove (11), the internal thread of the nut is meshed with the external threads on the two half cylinders (3).
4. The device for detecting the partial discharge current of the cable connector according to claim 2, wherein a first plug board (12) is inserted in the first transverse board (6), a second plug board (13) is inserted in the second transverse board (7), when the first transverse board (6) is not provided with the first mounting bolt (8), the second plug board (13) is positioned between the first transverse board (6) and the second transverse board (7), when the first mounting bolt (8) is arranged on the first transverse board (6), the second plug board (13) is positioned in the second transverse board (7), the first plug board (12) is positioned in the first transverse board (6), and the nut can rotate.
5. The partial discharge current detection device for the cable connector according to claim 4, wherein a compression spring (14) is arranged between one end of the second insertion plate (13) and the second transverse plate (7), the corner at the lower part of the other end of the second insertion plate (13) is cut off to form a second slope, an extension spring (15) is arranged between the middle part of the first insertion plate (12) and the first transverse plate (6), one end of the first insertion plate (12) is in contact with the other end of the second insertion plate (13), the corner at the upper part of the other end of the first insertion plate (12) is cut off to form a first slope, and the first slope is located in a through hole for inserting the first bolt (8).
6. The partial discharge current detection device of the cable joint according to claim 2, wherein the mounting cylinder (1), the half cylinder (3), the pressing bar (4) and the nut are made of insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111276188.9A CN113960432B (en) | 2021-10-29 | Cable joint partial discharge flow detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111276188.9A CN113960432B (en) | 2021-10-29 | Cable joint partial discharge flow detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113960432A true CN113960432A (en) | 2022-01-21 |
| CN113960432B CN113960432B (en) | 2024-08-27 |
Family
ID=
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5406032A (en) * | 1992-02-13 | 1995-04-11 | The Boeing Company | Apparatus and method for supporting wire bundles within a structure |
| EP1246311A1 (en) * | 2001-03-29 | 2002-10-02 | Fci | Cable clamp |
| US20030085575A1 (en) * | 2000-07-21 | 2003-05-08 | Joseph Crestin | Device for axially retaining a cylindrical element and more particularly a cable |
| WO2014006647A1 (en) * | 2012-07-04 | 2014-01-09 | Carpino Antonio | Improvements in the electric junctions for low-tension cables with gel insulation |
| CN109038469A (en) * | 2018-09-03 | 2018-12-18 | 深圳供电局有限公司 | High-voltage cable straight joint structure |
| CN212301753U (en) * | 2020-08-28 | 2021-01-05 | 广西电网有限责任公司钦州供电局 | Power cable connects fault diagnosis device |
| CN113064040A (en) * | 2021-05-18 | 2021-07-02 | 国网河南省电力公司南阳供电公司 | Coated cable joint fault early warning device and method |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5406032A (en) * | 1992-02-13 | 1995-04-11 | The Boeing Company | Apparatus and method for supporting wire bundles within a structure |
| US20030085575A1 (en) * | 2000-07-21 | 2003-05-08 | Joseph Crestin | Device for axially retaining a cylindrical element and more particularly a cable |
| EP1246311A1 (en) * | 2001-03-29 | 2002-10-02 | Fci | Cable clamp |
| WO2014006647A1 (en) * | 2012-07-04 | 2014-01-09 | Carpino Antonio | Improvements in the electric junctions for low-tension cables with gel insulation |
| CN109038469A (en) * | 2018-09-03 | 2018-12-18 | 深圳供电局有限公司 | High-voltage cable straight joint structure |
| CN212301753U (en) * | 2020-08-28 | 2021-01-05 | 广西电网有限责任公司钦州供电局 | Power cable connects fault diagnosis device |
| CN113064040A (en) * | 2021-05-18 | 2021-07-02 | 国网河南省电力公司南阳供电公司 | Coated cable joint fault early warning device and method |
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