SAW (Surface Acoustic Wave)-technology-based online monitoring system and monitoring method for running temperature of isolation switch in GIS

A technology of isolating switches and surface acoustic waves, applied in the setting of switch devices, thermometers with physical/chemical changes, thermometers, etc., can solve problems that have not yet appeared, and achieve the goal of removing space electromagnetic interference, high sensitivity, and preventing potential safety hazards Effect

Inactive Publication Date: 2015-03-11
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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AI Technical Summary

Problems solved by technology

[0009] In recent years, the research and application of Surface Acoustic Wave (SAW) technology has been quite mature and extensive. However, so far, the real device and method for online monitoring the temperature of high-voltage conductors inside GIS equipment using passive wireless technology It has not yet appeared in the power industry at home and abroad

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  • SAW (Surface Acoustic Wave)-technology-based online monitoring system and monitoring method for running temperature of isolation switch in GIS
  • SAW (Surface Acoustic Wave)-technology-based online monitoring system and monitoring method for running temperature of isolation switch in GIS
  • SAW (Surface Acoustic Wave)-technology-based online monitoring system and monitoring method for running temperature of isolation switch in GIS

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Embodiment Construction

[0032] Such as figure 1 , figure 2The online monitoring system for the operating temperature of the GIS internal isolating switch based on the surface acoustic wave technology is shown. The system includes a collector 1 and a SAW temperature sensor 2. The collector 1 is collected by WPTM-RR-SC produced by Chengdu Saikang Technology Co., Ltd. The frequency band of the collector is 429-436MHz. The SAW temperature sensor 2 is also produced by Chengdu Saikang Technology Co., Ltd. The frequency bands of the SAW temperature sensor are 429MHz, 431MHz, 432MHz, 433MHz, 435MHz, and 436MHz. The collector 1 is installed On the casing 4 of the gas insulated switch, the isolating switch 3 is built in the casing 4 of the gas insulated switch, the SAW temperature sensor 2 is a passive wireless temperature sensor, and the SAW temperature sensor 2 is installed at the switch contact of the isolating switch 3 .

[0033] The collector 1 is used to send a radio frequency signal with a frequency r...

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Abstract

The invention discloses an SAW (Surface Acoustic Wave)-technology-based online monitoring system and an SAW-technology-based online monitoring method for the running temperature of an isolation switch in a GIS (Gas Insulated Switchgear). The system comprises an acquirer and an SAW temperature sensor, wherein the acquirer is arranged on a shell of the GIS; the isolation switch is arranged in the shell of the GIS; the SAW temperature sensor is a passive and wireless temperature sensor, and is arranged at a switch contact of the isolation switch; the acquirer is used for transmitting a radio frequency signal to the SAW temperature sensor as an excitation signal of the SAW temperature sensor; the running temperature of the isolation switch in the GIS is monitored through the acquirer and the SAW temperature sensor. According to the system, the characteristics of an SAW technology are fully utilized, so that the running temperature of the isolation switch in the GIS is monitored on line on the premise of ensuring the inner insulation performance of the GIS. The invention also discloses the monitoring method.

Description

technical field [0001] The invention relates to an on-line monitoring system and method for monitoring the operating temperature of a GIS internal high-voltage conductor based on surface acoustic wave technology, in particular to an online monitoring system and method for monitoring the operating temperature of a GIS internal isolation switch based on surface acoustic wave technology. Background technique [0002] Gas Insulated Switchgear (GIS for short) has strict processing technology and advanced technology. It uses SF6 gas as the insulating medium and has good breaking capacity, insulation performance and arc extinguishing performance, as well as long maintenance period, low failure rate and low maintenance cost. It is widely used in power systems due to its advantages of less space and small footprint. [0003] However, when the internal high-voltage conductor contacts in the GIS equipment are in poor contact, due to the large contact resistance, overheating will occur ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/26
CPCH02B13/065
Inventor 王增彬饶章权曾德华吕鸿彭向阳林春耀卢启付唐瑛李兴旺王流火吴吉庞小峰陈祖伟
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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