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

A surface acoustic wave and operating temperature technology, applied to thermometers, thermometers, instruments, etc. that change physically/chemically, can solve problems that have not yet occurred, and achieve the removal of space electromagnetic interference, cost saving, strong electromagnetic compatibility and anti-interference effect of ability

Inactive Publication Date: 2015-03-11
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0033] Such as figure 1 , figure 2The online monitoring system of the operating temperature of the GIS internal circuit breaker based on the surface acoustic wave technology shown above, the system includes a collector 1 and a SAW temperature sensor 2, and 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 circuit breaker 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 on the high voltage guide rod of the circuit breaker 3 .

[0034] The collector 1 is used to send a radio frequency signal of 429-...

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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 a circuit breaker 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 circuit breaker is arranged in the shell of the GIS; the SAW temperature sensor is a passive and wireless temperature sensor, and is arranged on a high-voltage guide rod of the circuit breaker; 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 circuit breaker 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 circuit breaker 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 circuit breaker 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 w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/26
CPCH02B13/065
Inventor 吕鸿王增彬李成榕饶章权陈雪薇彭向阳林春耀李兴旺卢启付唐瑛马国明郑书生陈祖伟陈义龙
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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