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CN-122017499-A - Distribution cable detection device

CN122017499ACN 122017499 ACN122017499 ACN 122017499ACN-122017499-A

Abstract

The application provides a power distribution cable detection device, and relates to the technical field of power distribution cable operation and maintenance. The detection device comprises a detection assembly, a detection device body and a detection device body, wherein the detection assembly comprises a detection body, a first moving part and a detection part, the detection body is sleeved on a distribution cable, the first moving part is arranged on the detection body and is movably connected with the distribution cable, the distribution cable moves, the detection part is arranged on the detection body and is used for detecting discharge current and the outer surface state of the distribution cable. According to the application, the first moving part moves along the power distribution cable to drive the detection body and the detection part on the detection body to move relative to the surface of the power distribution cable, so that the detection range of the detection part is changed from fixed installation to movable, and the detection range of the detection part is expanded from a fixed position (such as a joint of the power distribution cable) to any position on the power distribution cable, which can be reached by the first moving part, and the detection range of the power distribution cable is expanded.

Inventors

  • WANG JINFENG
  • DU WANLIN
  • LUO WEI
  • LING LIN
  • ZHANG SHICHANG

Assignees

  • 广东电网有限责任公司梅州供电局

Dates

Publication Date
20260512
Application Date
20260327

Claims (10)

  1. 1. A power distribution cable detection apparatus, comprising: The detection assembly (100), detection assembly (100) is including detecting body (110), first moving part (120) and detection piece (130), it establishes to detect body (110) cover on distribution cable (10), be provided with first moving part (120) on detecting body (110), first moving part (120) with distribution cable (10) remove to be connected, first moving part (120) are followed distribution cable (10) removes, so that detect body (110) relatively distribution cable (10) removes, be provided with detection piece (130) on detecting body (110), detection piece (130) are used for detecting the discharge current and the surface state of distribution cable (10).
  2. 2. The power distribution cable detection apparatus according to claim 1, wherein the detection assembly (100) further comprises a guide rail (140), an adjusting frame (150) and a second moving member (160), the guide rail (140) is disposed in the detection body (110), the guide rail (140) is disposed around the extending direction of the power distribution cable (10), the adjusting frame (150) is slidably connected with the guide rail (140), the second moving member (160) and the detecting member (130) are both disposed on the adjusting frame (150), and the second moving member (160) is configured to drive the adjusting frame (150) to move along the guide rail (140) so that the detecting member (130) rotates relative to the power distribution cable (10).
  3. 3. The power distribution cable detection device according to claim 2, further comprising guide wheels (170), wherein guide holders (180) are provided at both ends of the adjustment frame (150), the guide wheels (170) are provided between the two guide holders (180), and the second moving member (160) and the detection member (130) are respectively and correspondingly provided in the guide holders (180).
  4. 4. A power distribution cable detection apparatus according to claim 3, wherein the detection member (130) includes a first detection member (131) and a second detection member (132), the first detection member (131) is configured to detect an outer surface state of the power distribution cable (10), the second detection member (132) is configured to detect a discharge current of the power distribution cable (10), the first detection member (131) and the second detection member (132) are located between the two guide holders (180), and the second detection member (132) is located between the guide wheel (170) and the second moving member (160).
  5. 5. The distribution cable detection apparatus according to any one of claims 1 to 4, wherein the detection assembly (100) further includes a heating member (190), the detection body (110) is provided with a transmission groove (101), the transmission groove (101) is used for mounting the first moving member (120), the heating member (190) is disposed on the detection body (110), and at least part of the heating member (190) is located at one side of the transmission groove (101), and the heating member (190) is used for heating and drying the first moving member (120).
  6. 6. The power distribution cable detection apparatus according to any one of claims 1 to 4, further comprising a mounting assembly (200), the mounting assembly (200) including a fixing member (210), a winding drum (220), and a detection cable (230), the winding drum (220) being disposed on the fixing member (210), the detection cable (230) being wound on the winding drum (220), the winding drum (220) being configured to wind the detection cable (230) or unwind the detection cable (230), the detection cable (230) being electrically connected to the detection member (130).
  7. 7. The power distribution cable detection apparatus according to claim 6, wherein a connection ring (111) is provided on the detection body (110), the connection ring (111) being electrically connected with the detection cable (230).
  8. 8. The power distribution cable detection apparatus according to claim 7, wherein an elastic contact piece (112) is further provided on the detection body (110), the elastic contact piece (112) being for crimping the detection cable (230) with the connection ring (111).
  9. 9. The power distribution cable detection apparatus according to claim 6, wherein the mounting assembly (200) further comprises a camera (250), a driving member (260), a transmission member (270), and a photovoltaic member (280), the driving member (260) being connected to the transmission member (270), the camera (250) being connected to the fixing member (210) through the transmission member (270), the photovoltaic member (280) being provided on the fixing member (210), the photovoltaic member (280) being configured to convert light energy into electrical energy, and at least one of the driving member (260), the detecting member (130), and the first moving member (120) being electrically connected to the photovoltaic member (280).
  10. 10. The distribution cable detection apparatus according to claim 9, wherein the transmission member (270) includes a connection rod (273), a first connection rod (271), a second connection rod (272), a worm wheel (274), and a worm screw (275), the first connection rod (271) is connected to the fixing member (210), the worm screw (275) is connected to the connection rod (273), the first connection rod (271) is rotatably connected to the second connection rod (272), the camera member (250) is connected to the second connection rod (272), the worm wheel (274) is connected to the second connection rod (272), the worm screw (275) is engaged with the worm wheel (274), the worm screw (275) is connected to the driving member (260), and the driving member (260) drives the worm screw (275) to rotate so that the second connection rod (272) rotates with respect to the first connection rod (271).

Description

Distribution cable detection device Technical Field The application relates to the technical field of operation and maintenance of power distribution cables, in particular to a power distribution cable detection device. Background The distribution cable is used for power transportation, is one of the components of the power system, and the running state of the distribution cable influences the stability and the safety of the power grid. In high or ultra-high voltage environments, the distribution cable may generate partial discharge due to long-term exposure to electric field stress, mechanical stress, or environmental factors (e.g., humidity, temperature changes). In the related art, a detecting member (e.g., a sensor) is fixedly installed at a joint of a distribution cable, and the discharging condition at the joint is monitored by the detecting member. However, the detection member is fixedly arranged, cannot move, and can only detect partial discharge near the joint, and has a small detection range. Disclosure of Invention The application provides a power distribution cable detection device, which expands the detection range of a power distribution cable. In order to achieve the above object, the technical scheme of the present application is as follows: In one aspect, the application provides a power distribution cable detection device, which comprises a detection assembly, wherein the detection assembly comprises a detection body, a first moving part and a detection part, the detection body is sleeved on a power distribution cable, the detection body is provided with the first moving part, the first moving part is movably connected with the power distribution cable, the first moving part moves along the power distribution cable so that the detection body moves relative to the power distribution cable, the detection body is provided with the detection part, and the detection part is used for detecting discharge current and the outer surface state of the power distribution cable. In a possible implementation manner, the power distribution cable detection device provided by the embodiment of the application further includes a guide rail, an adjusting frame and a second moving member, the guide rail is arranged in the detection body, the guide rail is arranged around the extending direction of the power distribution cable, the adjusting frame is slidably connected with the guide rail, the second moving member and the detecting member are both arranged on the adjusting frame, and the second moving member is used for driving the adjusting frame to move along the guide rail so as to enable the detecting member to rotate relative to the power distribution cable. In a possible implementation manner, the power distribution cable detection device provided by the embodiment of the application further comprises guide wheels, guide seats are arranged at two ends of the adjusting frame, the guide wheels are arranged between the two guide seats, and the second moving part and the detection part are respectively and correspondingly arranged in the guide seats. In a possible implementation manner, the detection piece includes a first detection piece and a second detection piece, the first detection piece is used for detecting an outer surface state of the power distribution cable, the second detection piece is used for detecting discharge current of the power distribution cable, the first detection piece and the second detection piece are located between two guide seats, and the second detection piece is located between the guide wheel and the second moving piece. In a possible implementation manner, the power distribution cable detection device provided by the embodiment of the application further includes a heating element, the detection body is provided with a transmission groove, the transmission groove is used for installing the first moving element, the heating element is arranged on the detection body, at least part of the heating element is located on one side of the transmission groove, and the heating element is used for heating and drying the first moving element. The heating piece is located the one side that the moving piece deviates from the distribution cable to keep away from the distribution cable, avoid damaging the distribution cable. In a possible implementation manner, the power distribution cable detection device provided by the embodiment of the application further comprises a mounting assembly, wherein the mounting assembly comprises a fixing piece, a winding drum and a detection cable, the winding drum is arranged on the fixing piece, the detection cable is wound on the winding drum, the winding drum is used for winding or unwinding the detection cable, and the detection cable is electrically connected with the detection piece. In one possible implementation manner, the power distribution cable detection device provided by the embodiment of the application is provided with the connection ring o