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Optical detector for a high-voltage cable accessory and method of optically measuring electrical discharges

A technology of optical detectors and high-voltage cables, applied in the field of optical detectors, can solve the problems of inaccurate detection and insufficient sensitivity of photoelectric detectors, and achieve the effects of effective and more economical production, easy and effective replacement, and simple installation

Pending Publication Date: 2021-06-04
TYCO ELECTRONICS RAYCHEM GMBH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Wavelength conversion is necessary because conventional photodetectors are not sensitive enough to correctly detect radiation from the discharge at its naturally occurring wavelength
However, the inclusion of fluorescent materials to achieve this transformation may require purchasing or producing specific and expensive fluorescent optical fibers or fluorescent insulating materials

Method used

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  • Optical detector for a high-voltage cable accessory and method of optically measuring electrical discharges
  • Optical detector for a high-voltage cable accessory and method of optically measuring electrical discharges
  • Optical detector for a high-voltage cable accessory and method of optically measuring electrical discharges

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Embodiment Construction

[0028] figure 1 A known high voltage outdoor terminal 100 commonly used for overhead lines is shown. The terminal 100 provides a cable 102 with a cable lug 104 for connecting the cable 102 to eg a high voltage installation. In some embodiments, the outdoor terminal 100 is mounted on a substrate 106 . In one embodiment, the housing 108, which may be made of porcelain, surrounds the internal components of the terminal 100 and protects the internal components from the surrounding environment. In other embodiments, housing 108 may be made of a silicone material.

[0029] The high voltage cable 102 inserted and connected within the cable termination 100 is typically stripped of its outer layer within the cable termination 100 . The outer layers of the cable 102 , such as the cable jacket, buffer, insulation, and metal shield, may all be stripped from a portion of the cable 102 to expose the conductors 110 of the cable 102 within the terminal 100 . exist figure 1 In the illustr...

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Abstract

The present invention relates to an optical detector for a high-voltage cable accessory. The present invention further relates to a monitoring system for detecting an electrical discharge in a high-voltage cable accessory and to a method of detecting and / or monitoring electrical discharges occurring within an insulating part of such a high-voltage cable accessory. According to the present invention, said optical detector detects a radiation generated by an electrical discharge of the high-voltage cable accessory at a wavelength of the radiation generated by the electrical discharge.

Description

technical field [0001] The invention relates to an optical detector for high-voltage cable accessories. The invention also relates to a monitoring system for detecting discharges in high-voltage cable accessories, and a method for detecting and / or monitoring discharges occurring in insulating parts of such high-voltage cable accessories. Background technique [0002] High voltage cable accessories are used to connect high voltage power cables to electrical equipment such as overhead lines, transformers, surge arresters, switchgear, etc. High-voltage cable accessories insulate or control the electric field of power cables under different environmental conditions and are expected to last for more than 40 years without any failure. In order to meet this requirement, the insulation system and its performance must be checked regularly. In addition, since installing terminals or installing cable glands always requires manual installation, failures during installation must also b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1272G01R31/1218
Inventor A.埃格纳T.克兰兹
Owner TYCO ELECTRONICS RAYCHEM GMBH
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