Chinese manufacturer of the best temperature measurement equipment for high-voltage power equipment-INNO

Why do high-voltage power equipment need temperature measurement

오늘, with the continuous development of informatization, electric energy has been widely used in various fields. Various power infrastructure that provides electricity energy is widely distributed throughout the country, undertaking the electricity supply in various regions and fields. 그 중, the power station, as the main infrastructure, its supply of electricity and reliability are related to the basic guarantee of production and life in various regions and fields. There are various high-voltage equipment installed in the power station, such as wiring strips, 스위치, 등. These high-voltage equipment are prone to heating problems due to aging, loosening, 그리고 다른 문제들. When the heating temperature is high, not only does it need to be shut down for maintenance, but it may also cause serious accidents. 최근에는, multiple power outage and fire accidents have occurred in the fields of power transmission, metallurgy and mining, factories and enterprises, urban power supply, 등., caused by overheating of high-voltage electrical contacts such as high-voltage switch contacts, transformer leads, high-voltage busbars, and high-voltage cable connectors, resulting in huge economic losses. Effective monitoring and alarm of overheating of high-voltage electrical contacts is an urgent requirement for safety production. 고전압 및 고전류 조건에서 고전압 개폐 장치의 신뢰성은 절연 스위치 접점의 온도 상승과 밀접한 관련이 있습니다. 전력망 작동 중, 기계적 진동, 접촉 침식, 기타 이유로 인해 접촉 상태가 악화될 수 있습니다., 접촉 저항 증가, 접점온도 상승 원인, 접촉면 산화를 악화시킨다, 느슨한 접점에서 국부적인 용접이나 아크 방전이 발생합니다., 궁극적으로 전기 장비에 손상을 초래함, 정전, 또는 화재 등의 큰 사고. 이러한 유형의 접점 과열 오류 사고는 고전압 캐비닛 스위치 자체의 품질 문제 때문만은 아닙니다., 하지만 더 중요한 것은, 현재 절연 스위치 접점의 온도 상승을 효과적으로 모니터링하는 방법이 부족하기 때문입니다..

밀봉된 고전압 및 저전압 배전 캐비닛 장비 분야, 밀봉된 배전 캐비닛의 작업 환경 요구 사항으로 인해, 배포 캐비닛의 작업 환경이 밀봉되어 있습니다.. 각종 전자부품 및 케이블의 노후화로, 먼지로 인한 과도한 접촉 저항으로 인해 중요 전기 장비와 케이블 사이의 접점이 가열됩니다., 설사, 그리고 산화. Abnormal heating parts will cause various safety hazards. 하지만, 밀봉된 분배 캐비닛의 밀봉 요구 사항으로 인해, 기존의 검사방법으로는 검사자가 내부 작업상황을 관찰하기가 어렵습니다.. 게다가, due to the fact that conventional internal temperature measurement equipment is non-contact temperature measuring instruments and is easily affected by various electromagnetic or environmental factors such as high and low temperatures inside the distribution cabinet, inaccurate temperature measurement and unstable operation may occur. Disadvantages of. 그러므로, 밀봉된 배전 캐비닛의 정확한 온라인 실시간 온도 측정은 업계에서 해결해야 할 시급한 문제가 되었습니다..

Traditional temperature measurement methods for high-voltage equipment

With the continuous increase of electricity load, high-voltage isolation switches often experience abnormal temperature rise in switch contacts, 버스 연결, and other parts due to aging, 접촉 불량, or excessive contact resistance during long-term operation. If not detected and maintained in a timely manner, it will cause serious equipment accidents. 그러므로, solving the problem of switch overheating is the key to preventing such accidents, and achieving real-time temperature monitoring is an important means to ensure the safe operation of high-voltage equipment. 하지만, due to the limitations of high-voltage operation, the heating part of the contact point of the high-voltage isolation switch is difficult to achieve ordinary online temperature measurement for monitoring. The existing temperature measurement technology can only detect which one or some of the high-voltage distribution equipment is in an overheated state, and cannot test which part of the overheated high-voltage distribution equipment is causing the overheat situation. It cannot determine the location of the faulty components, which creates difficulties for equipment maintenance. Installing sensors for temperature monitoring in high-voltage equipment and using infrared thermometers for temperature measurement during inspections are traditional methods of temperature monitoring, which have the problem of low accuracy in temperature measurement results. 현재, infrared temperature measurement technology is generally used for monitoring in the market. Infrared temperature measurement is easily affected by environmental factors, and there are still significant limitations and difficulties in the application of temperature measurement in dangerous places. The market urgently needs a temperature measurement device that can implement monitoring in dangerous places, with low cost and high reliability.

형광등 광섬유 온도 측정 device applied in the field of electric power:

개폐 장치의 온도 측정

Due to the rapid increase in the number of high-voltage switchgear applications in the distribution network, data shows that by the end of the 1990s, there were more than 270000 distribution switches operating in the national power system, which doubled compared to the previous year. 하지만, the high-voltage switchgear in the 10kV distribution network is affected by various factors such as daily operation, external damage, and overloaded lines, resulting in a huge proportion of overheating faults. Especially during peak summer and high load periods of the power grid every year, the overall damage caused by overheating of the contacts inside the switchgear often occurs.

회로 차단기 온도 측정

The temperature change of the switchgear contacts is the key point for online temperature rise monitoring of the switchgear. 현재, low-voltage feed switches or other combination switches use circuit breakers or contactors that are modular in design. Dynamic and static contacts are inevitably used in modular design. 하지만, the use of dynamic and static contacts will inevitably increase a fault point because they need to be frequently plugged in and out, and the current here is generally too high. In case of poor contact, it is easy to have high temperature, which can easily burn out the dynamic and static contacts.

광섬유 온도 측정 변전소에서

In production, accidents caused by overheating of electrical equipment connection points account for a large proportion of overall electrical accidents. 적시에 발견되지 않은 경우, such hidden dangers will pose a great threat to safe power supply. In order to timely detect hidden dangers and avoid accidents, it is necessary to implement online real-time temperature monitoring and intelligent alarm for each connection point of electrical equipment.

Temperature measurement of electrical cabinet

The biggest cause of fire caused by high-voltage electrical cabinets is that individual contacts or circuits in the high-voltage electrical cabinet cannot dissipate a large amount of heat due to long-term aging or poor contact, resulting in local high temperatures, even exceeding the ignition point temperature, and thus causing a fire. In addition to timely strengthening inspections, it is necessary to promptly eliminate hidden dangers in response to these abnormal points and nip accidents in the bud.

특징 fluorescence fiber optic thermometer

FJINNO’s fluorescence fiber optic thermometer has the characteristics of accurate temperature measurement, 고해상도, 전자기 간섭에 대한 내성. The fluorescence fiber optic thermometer can be reliably applied in environments with strong electromagnetic interference, especially in harsh temperature measurement environments. And combined with advanced fiber optic temperature measurement technology, the communication control between the upper computer and the data acquisition system microcontroller, the interface is beautiful, the operation is simple, and it can monitor and save data in real-time online, improving the automation and intelligence of the system.