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High voltage temperature on-line monitoring optronic switching contact box structure

A technology of photoelectric converters and contact boxes, applied in non-electrical signal transmission systems, signal transmission systems, instruments, etc., can solve the problems of affecting measured values, falling dust, and poor signal transmission reliability, and achieve reliable temperature online The effect of monitoring, reliable high voltage, and convenient equipment modification and replacement

Inactive Publication Date: 2008-02-13
陈津
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the infrared emission and receiving tubes are exposed, and long-term use will cause dust and pollution, which will gradually deteriorate the reliability of signal transmission and affect the measured value. It is also a difficult problem to solve.
In addition, on-site professional installation and commissioning must be carried out

Method used

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  • High voltage temperature on-line monitoring optronic switching contact box structure
  • High voltage temperature on-line monitoring optronic switching contact box structure
  • High voltage temperature on-line monitoring optronic switching contact box structure

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Please refer to Figure 1-Figure 3, there is a main body 1 of the contact box, a through hole is opened on the upper side of the main body 1, and the inductive power supply 2 in the insulator is injected into the inner side of the upper through hole of the main body 1, and the inductive power supply 2 passes through the lead wire Connect with the photoelectric converter 5 to provide its working power; the inner cavity of the main body 1 is embedded with a thermal detector 3 on the inner wall of the centerline position to fix the insert to detect the temperature of the static contact, and its lead wire is connected to the photoelectric converter 5 To input the temperature signal; the main body is provided with a left and right transparent hole on the other side corresponding to the through hole at the upper end. The left end of the hole is equipped with an infrared emitting tube 6 connected to the photoelectric converter 5, and the right end of the hole is installed with an...

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PUM

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Abstract

Online monitoring device for temperature includes a contactor body. There is a through hole on one side at upper end of the body. Inductive power supply inside insulator is placed on the side near to the hole. Through lead wire, the inductive power supply is connected to photovoltaic converter. Through a fixed piece, thermal detector is embedded to inner wall, and its lead wire is connected to the photovoltaic converter. There is a left - right through hole set up at another side opposite to the through hole mentioned above. Infrared emission tube connected to the photovoltaic converter is installed on left side of the hole, and infrared receiving tube is installed on right side of the hole. A cover is installed on top of the body, and an output connection terminal of the infrared receiving tube is at lower end of the body. Since thermal detector is directly contacted to point to be measured, thus temperature is monitored online and measured accurately.

Description

technical field [0001] The invention relates to an on-line temperature monitoring device of a high-voltage switchgear, in particular to a structure of a photoelectric conversion contact box for on-line monitoring of a high-voltage temperature. Background technique [0002] At present, due to the manufacturing and installation deviations of the moving and static contacts in the removable switchgear, as well as the mechanical vibration caused by electrical wear, mechanical operation and short-circuit electric power during the operation process, the contact resistance increases, causing the temperature to rise and aggravate the contact resistance. Oxidation of the contact surface leads to excessive local temperature and major equipment accidents occur frequently. This phenomenon has become the weak link of switchgear, so how to accurately and conveniently monitor its real temperature online is a subject of concern to people in the industry. [0003] There are two main types of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C23/04
Inventor 陈津
Owner 陈津