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Optical fiber grating composite insulator for ice coating state measurement and manufacturing method thereof

A technology of composite insulators and optical fiber gratings, applied in the direction of insulators, electrical components, circuits, etc., can solve the problems of inaccurate monitoring results, low data transmission and communication technology, and poor power extraction effect, and achieve strong anti-interference ability and improved survival The effect of high efficiency and simple steps

Inactive Publication Date: 2018-11-23
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above method has the following disadvantages: 1. The power supply of the monitoring terminal cannot work stably and continuously. In the existing icing online monitoring system, sensors, cameras, small weather stations, monitoring extensions and other equipment usually use the combination of solar panels and batteries for power supply. The electricity harvesting effect is poor when the battery board is covered by ice and snow; 2. Under repeated ice conditions, the camera may be covered by ice, and the on-site ice image cannot be observed, which will seriously affect the background ice analysis; 3. The mechanical transmission parts are easy to freeze, and the data transmission and communication technology is not high, resulting in inaccurate monitoring results

Method used

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  • Optical fiber grating composite insulator for ice coating state measurement and manufacturing method thereof
  • Optical fiber grating composite insulator for ice coating state measurement and manufacturing method thereof
  • Optical fiber grating composite insulator for ice coating state measurement and manufacturing method thereof

Examples

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Embodiment 1

[0030] This embodiment provides a fiber grating composite insulator for ice-covered state measurement, the structure diagram is as follows figure 1 As shown, the silicon rubber sheath (1) of the fiber grating composite insulator is implanted with an optical fiber (3) parallel to the core rod (2), and the optical fiber (3) includes a core (32), a pigtail ( 31) and cladding (34), the optical fiber (3) is provided with a grating (33) and socketed protective sleeve (4), such as figure 2 with image 3 As shown, a groove (51) is engraved on the assembly surface of the silicone rubber sheath (1) facing the core rod (2), and the optical fiber (3) covered with the protective sheath (4) is put into the groove (51), and used The liquid material fills the groove (51) to fix the optical fiber (3), such as image 3 shown in the groove (5) filled with RTV glue containing the RTV glue layer (52); the two ends of the mandrel are respectively crimped with low-voltage end fittings (6) and hig...

Embodiment 2

[0033] This embodiment provides a method for preparing a fiber grating composite insulator for ice-covered state measurement, the method comprising the following steps:

[0034] Step 1: Soak the glass fiber in epoxy resin glue, use the tractor to introduce the soaked glass fiber into the mold to obtain the mandrel (2), then put the mandrel into the extruder, and the surface of the mandrel has a layer thickness A silicone rubber sheath (1) of about 4mm;

[0035] Step 2: Cut a semicircular groove (51) with a diameter radius of about 3mm on the surface of the silicone rubber sheath, then put the optical fiber into the groove (51), and fill the groove (51) with RTV glue, filling During the process, try to ensure that the optical fiber (3) is closely attached to the upper surface of the RTV adhesive layer (52), so as to reduce the influence of the RTV adhesive layer (52) on the stress transmission of the grating;

[0036] Step 3: Connect low-voltage end fittings (6) and high-volta...

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Abstract

The invention discloses an optical fiber grating composite insulator for ice coating state measurement and a manufacturing method thereof, and relates to the field of online monitoring of power transmission and transformation equipment. An optical fiber in parallel to a core rod is implanted in a silicone rubber sheath of the optical fiber grating composite insulator; a grating is arranged on theoptical fiber and the optical fiber is sleeved with a protection sleeve; a groove is engraved on an assembling face of the silicon rubber sheath, which faces the core rod; the optical fiber sleeved with the protection sleeve is placed into the groove and the groove is filled with a liquid material to fix the optical fiber; and when an umbrella skirt generates an ice layer or ice, the umbrella skirt is deformed so as to cause the change of a grating wavelength in the optical fiber, and by the change of the grating wavelength, an ice coating state of the composite insulator can be calculated. The optical fiber grating composite insulator can measure deformation of the umbrella skirt according to the optical fiber and the grating of the optical fiber grating composite insulator, an ice coating degree of the composite insulator is accurately measured, and the optical fiber grating composite insulator has wide application value.

Description

technical field [0001] The invention relates to the field of on-line monitoring of power transmission and transformation equipment, in particular to an optical fiber grating composite insulator used for ice-covered state measurement and a manufacturing method thereof. Background technique [0002] Compared with traditional porcelain and glass insulator strings, composite insulators are more and more widely used in high-voltage transmission systems due to their advantages such as light weight, high strength, excellent pollution resistance, and convenient operation and maintenance. With the development of my country's electric power industry and the implementation of the power grid development strategy of "power transmission from west to east, mutual supply between north and south, and national networking", a large number of transmission lines must pass through high-altitude ice-covered areas. When the composite insulator is heavily iced, the gap between the sheds will be brid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/38H01B19/00
CPCH01B17/38H01B19/00
Inventor 郝艳捧韦杰傅源阳林李立浧
Owner SOUTH CHINA UNIV OF TECH
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