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Surface acoustic wave temperature sensor-based intelligent temperature measurement composite insulator system

A technology of temperature sensor and composite insulator, used in thermometers, insulators, thermometers with physical/chemical changes, etc., can solve problems such as installation difficulties, improve uninterrupted maintenance, improve accuracy and reliability, and avoid excessive maintenance. Effect

Pending Publication Date: 2017-09-22
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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  • Abstract
  • Description
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Problems solved by technology

This makes installation difficult

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  • Surface acoustic wave temperature sensor-based intelligent temperature measurement composite insulator system
  • Surface acoustic wave temperature sensor-based intelligent temperature measurement composite insulator system
  • Surface acoustic wave temperature sensor-based intelligent temperature measurement composite insulator system

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Embodiment Construction

[0013] The composite insulator temperature online monitoring system is mainly composed of a passive wireless surface acoustic wave temperature sensor, and the subsequent signal processing device completes the measurement of the composite insulator temperature. The present invention will be further described below with reference to the accompanying drawings.

[0014] In the figure, 1. SAW temperature sensor, 2. Antenna (Yagi antenna), 3. Temperature collector, 4. Cable, 5. Temperature acquisition module, 6. Signal amplifier circuit, 7. A / D conversion module, 8 , signal processing module.

[0015] like figure 1 The surface acoustic wave sensor 1 is installed at multiple temperature measurement points on the inner surface of the metal part of the steel cap of the composite insulator, the surface of the glass fiber epoxy resin pulling rod and the lower surface of the shed of the composite insulator. The surface acoustic wave temperature sensor 1 includes a bracket, an outer cove...

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Abstract

The invention relates to a surface acoustic wave temperature sensor-based intelligent temperature measurement composite insulator system. The intelligent temperature measurement composite insulator system comprises a surface acoustic wave temperature sensor, an antenna, a temperature acquisition module, a signal amplification circuit, an A / D conversion circuit and a signal processing module, wherein the temperature sensor is arranged on an inner surface of a composite insulator steel cap metal part, a surface of a glass fiber epoxy resin shift rod and a lower surface of a composite insulator umbrella shirt, the antenna is in wireless communication connection with the surface acoustic wave temperature sensor, a temperature acquisition device is connected with the antenna by a cable and is used for detecting a temperature of a composite insulator in a target way, and a temperature signal is amplified by the signal amplification circuit and is then transferred to the signal processing module of a control center through the A / D conversion circuit. On-line monitoring on the temperature of the composite insulator is achieved by the surface sensor, the purpose of state maintenance on the composite insulator is further achieved, and the intelligent temperature measurement composite insulator system has important significance to maintenance of the insulator without power failure and prevention of excessive maintenance.

Description

technical field [0001] The invention belongs to the field of on-line real-time overhaul and maintenance of power equipment, in particular to an intelligent temperature-measuring composite insulation subsystem based on a surface acoustic wave temperature sensor. Background technique [0002] Composite insulators are widely used in power grids due to their advantages of strong pollution resistance, zero measurement, no cleaning, and light weight. However, with the increase of operating time, the composite insulator gradually suffers from serious aging, abnormal heating and even breakdown under operating voltage. Partial discharge, dielectric or resistive losses when leakage current flows through the insulating material can cause local temperature rise in the insulator. According to the heating phenomenon, the operation defects of the composite insulator can be found in time to ensure the safe operation of the power system. The method closest to the present invention for dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/38H01B17/00G01K11/22
CPCH01B17/005H01B17/38G01K11/22
Inventor 黄良赵立进吕黔苏杨涛吴建蓉彭辉郑绘绘周甜徐晓彤
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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