Cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof

A technology of intermediate joints and measuring devices, which can be used in measuring devices, force/torque/work measuring instruments, instruments, etc., and can solve problems such as measurement result errors.

Active Publication Date: 2017-02-15
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] Based on this, it is necessary to provide a measuring device and method for the interface pressure of the cable cold-shrinkable intermediate joint in order t

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  • Cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof
  • Cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof
  • Cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof

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[0021] In order to further illustrate the technical means adopted by the present invention and the achieved effects, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.

[0022] Such as figure 1 as shown, figure 1 It is a schematic structural diagram of a measuring device for the interface pressure of a cable cold-shrink intermediate joint according to an embodiment of the present invention, including: a plurality of pressure sensors 100, a signal acquisition unit 200, and a data processing unit 300;

[0023] The pressure sensor 100 is pre-embedded on the cross-linked polyethylene insulating surface on the starting side of the cold-shrinkable tube of the cable cold-shrinkable intermediate joint, corresponding to the middle part of the interface between the silicone rubber and the cross-linked polyethylene after the cold-shrinkable tube is core-pulled, and each ...

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Abstract

The invention relates to a cable cold shrink intermediate joint interface pressure measuring apparatus and method thereof. The apparatus includes a plurality of pressure sensors, a signal acquisition unit, and a data processing unit, the pressure sensors are pre-embedded in the cross-linking polyethylene insulation surface on the starting side of the cold shrink tube of a cable cold shrink intermediate joint and is corresponding to the middle parts of the core-pulling silicone rubber of the cold shrink tube and the cross-linking polyethylene interface, the pressure sensors are equally spaced in the same circumference, the signal acquisition unit reads the electrical signals generated by the pressure sensors in real time during the cable normal running process and transmits the electrical signals to the data processing unit, and the data processing unit obtains the interface pressure value of the cable cold shrink intermediate joint according to the preset corresponding relation between the electrical signals and the pressure values. According to the invention, the direction measurement of the cable cold shrink intermediate joint interface pressure is realized, and the errors brought by the indirect measurement can be prevented, so that the accuracy of the measurement result can be effectively improved.

Description

technical field [0001] The invention relates to the field of transmission line safety, in particular to a device and method for measuring the interface pressure of a cable cold-shrink intermediate joint. Background technique [0002] Existing high-voltage transmission lines mostly use cross-linked polyethylene sheathed power cables. When the cross-linked polyethylene cable line is short-circuited, insulation aging or other external forces cause a breakdown fault, the common treatment method is: Discard the segmented cables and connect the cut cables using an intermediate junction box. For the selection of intermediate junction boxes, cold-shrinkable intermediate joints have become the most ideal intermediate joints because of their reliable insulation, good sealing, convenient installation, safety and reliability, and many other advantages. The cable cold-shrinkable intermediate joint utilizes the characteristics of rubber "elastic memory" and adopts advanced expansion tech...

Claims

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Application Information

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IPC IPC(8): G01L5/00
CPCG01L5/00
Inventor 范伟男黄炎光莫文雄王勇熊俊索智鑫方健张亚茹杜钢覃煜
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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