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Power substation high-tension switch cabinet temperature and humidity online monitoring system and monitoring method

A high-voltage switch and monitoring system technology, applied in signal transmission systems, measuring devices, instruments, etc., can solve problems such as difficult wiring of switch cabinets, inability to obtain real-time information batteries, and large installation and commissioning engineering, so as to achieve convenient matching and improve detection Accuracy, the effect of high temperature detection accuracy

Active Publication Date: 2019-03-12
HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention mainly solves the problems of difficult wiring in the switch cabinet, large amount of installation and commissioning, inability to obtain real-time information during on-site operations, and the need to periodically replace the battery, and provides an easy-to-install, easy-to-install, and on-site acquisition without wiring in the switch cabinet Online temperature and humidity monitoring system for substation high-voltage switchgear without battery replacement

Method used

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  • Power substation high-tension switch cabinet temperature and humidity online monitoring system and monitoring method
  • Power substation high-tension switch cabinet temperature and humidity online monitoring system and monitoring method
  • Power substation high-tension switch cabinet temperature and humidity online monitoring system and monitoring method

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Embodiment 1

[0029] In this embodiment, an online temperature and humidity monitoring system for a high-voltage switchgear in a substation, such as figure 1 As shown, it includes a remote monitoring terminal 1 and several detection terminals 2. The detection terminal 2 includes a monitoring unit, several wireless temperature detection units 4 and a wireless humidity detection unit 5 . The wireless temperature detection unit 4 is used to detect the temperature of the moving contact of the circuit breaker or the connection of the busbar, and is fixed by a cable tie mechanism. The wireless humidity detection unit 5 is used to monitor the humidity in the switch cabinet, and is fixed by a cable tie. The cable tie mechanism includes a cable tie and a carrier.

[0030] Such as figure 2 As shown, the carrier includes a first groove 8 for placing the wireless temperature detection unit 4, a second groove 10, a first heat conduction sheet 9 for transferring heat, a heat conduction spring 11, a se...

Embodiment 2

[0041] This embodiment is an on-line temperature and humidity monitoring system for a high-voltage switchgear in a substation. Compared with Embodiment 1, the carrier structure is changed. The difference lies in the structure of the elastic mechanism in the second groove and the fixing method of the second heat conducting sheet 12 . Such as image 3 As shown, the ends of the second grooves of the carrier are respectively provided with buckle grooves 18, and the two ends of the second heat conduction sheet 12 are provided with barbs, and the second heat conduction sheet 12 is fixed to the bottom of the carrier by fastening the barbs and the buckle grooves, and the outside of the buckle grooves Comes with a protective cover. The elastic mechanism includes a heat-resistant elastic body 19, a push plate 17, a heat-conducting wire 20 and several load-bearing springs 15. The heat-resistant elastic body is arranged in the second groove, and the bottom of the heat-resistant elastic bo...

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Abstract

The invention discloses a power substation high-tension switch cabinet temperature and humidity online monitoring system which comprises a remote monitoring end and a plurality of detecting ends. Thedetecting ends comprise a wireless temperature detecting unit, a wireless humidity detecting unit and a monitoring unit. The wireless temperature detecting unit and the wireless humidity detecting unit are connected with the monitoring unit through a wireless network. The monitoring unit is connected with the remote monitoring end through a network. The wireless temperature detecting unit is fixedto a detecting point through a binding belt mechanism. The binding belt mechanism comprises a carrier and binding belts arranged on the two sides of the carrier. The wireless temperature detecting unit is arranged on the carrier. A heat conduction piece is arranged at the lower portion of the carrier. An elastic mechanism for keeping the heat conduction piece attached to the detecting point is arranged in the carrier. The power substation high-tension switch cabinet temperature and humidity online monitoring system has the advantages that the temperature detection accuracy is high, no wires need to be arranged in a switch cabinet, the monitoring unit, the wireless temperature detecting unit and the wireless humidity detecting unit are conveniently matched, the wireless temperature detecting unit and the wireless humidity detecting unit need no batteries, and information can be conveniently inquired about on site.

Description

technical field [0001] The invention relates to the field of temperature monitoring, in particular to an on-line monitoring system and method for temperature and humidity of a high-voltage switchgear in a substation based on wireless technology. Background technique [0002] High-voltage switchgears in power plants and substations are important electrical equipment. During the long-term operation of the equipment, the circuit breaker contacts and busbar connections in the switchgear will heat up due to aging or excessive contact resistance, which will degrade the performance of insulating parts and even break down. It may eventually lead to a fire accident. Solving the problem of overheating of the switchgear is the key to preventing such accidents. At present, the commonly used methods for measuring the temperature of circuit breakers include wireless temperature measurement and optical fiber temperature measurement. Although the optical fiber in the optical fiber temper...

Claims

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Application Information

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IPC IPC(8): G01D21/02G08C17/02
CPCG01D21/02G08C17/02
Inventor 李正明马爱军
Owner HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
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