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

Why do high-voltage power equipment need temperature measurement

Hari ini, 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. Diantaranya, 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, saklar, dll.. These high-voltage equipment are prone to heating problems due to aging, melonggarkan, and other issues. When the heating temperature is high, not only does it need to be shut down for maintenance, but it may also cause serious accidents. Dalam beberapa tahun terakhir, multiple power outage and fire accidents have occurred in the fields of power transmission, metallurgy and mining, factories and enterprises, urban power supply, dll., caused by overheating of high-voltage electrical contacts such as high-voltage switch contacts, transformer leads, high-voltage busbars, and high-voltage cable connectors, mengakibatkan kerugian ekonomi yang sangat besar. Effective monitoring and alarm of overheating of high-voltage electrical contacts is an urgent requirement for safety production. Keandalan switchgear tegangan tinggi dalam kondisi tegangan tinggi dan arus tinggi berkaitan erat dengan kenaikan suhu kontak sakelar isolasi. Selama pengoperasian jaringan listrik, getaran mekanis, erosi kontak, dan alasan lain dapat memperburuk kondisi kontak, meningkatkan resistensi kontak, menyebabkan peningkatan suhu titik kontak, memperburuk oksidasi permukaan kontak, dan menyebabkan pengelasan lokal atau pelepasan busur api pada titik kontak yang longgar, pada akhirnya menyebabkan kerusakan pada peralatan listrik, pemadaman listrik, atau kecelakaan besar seperti kebakaran. Jenis kecelakaan kesalahan kontak yang terlalu panas ini tidak hanya disebabkan oleh masalah kualitas dari saklar kabinet tegangan tinggi itu sendiri, tapi yang lebih penting, karena kurangnya metode pemantauan yang efektif terhadap kenaikan suhu kontak sakelar isolasi saat ini.

Di bidang peralatan kabinet distribusi tegangan tinggi dan rendah yang disegel, karena persyaratan lingkungan kerja kabinet distribusi yang disegel, lingkungan kerja kabinet distribusi disegel. Dengan bertambahnya usia berbagai komponen elektronik dan kabel, titik kontak antara peralatan listrik penting dan kabel akan memanas karena hambatan kontak berlebihan yang disebabkan oleh debu, kelonggaran, dan oksidasi. Abnormal heating parts will cause various safety hazards. Namun, karena persyaratan penyegelan kabinet distribusi yang disegel, sulit bagi pengawas untuk mengamati situasi kerja internal melalui metode inspeksi konvensional. Lebih-lebih lagi, 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. Kekurangan dari. Karena itu, pengukuran suhu real-time online yang akurat pada lemari distribusi tertutup telah menjadi masalah mendesak yang perlu dipecahkan di industri.

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, koneksi bus, and other parts due to aging, kontak yang buruk, or excessive contact resistance during long-term operation. If not detected and maintained in a timely manner, it will cause serious equipment accidents. Karena itu, 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. Namun, 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. Saat ini, 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.

Berpendar pengukuran suhu serat optik device applied in the field of electric power:

Pengukuran suhu switchgear

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. Namun, 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.

Pengukuran suhu pemutus sirkuit

The temperature change of the switchgear contacts is the key point for online temperature rise monitoring of the switchgear. Saat ini, 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. Namun, 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.

Pengukuran suhu serat optik di gardu induk

Dalam produksi, Kecelakaan yang disebabkan oleh panas berlebih pada titik sambungan peralatan listrik merupakan penyebab sebagian besar kecelakaan kelistrikan secara keseluruhan. Jika tidak terdeteksi pada waktu yang tepat, bahaya tersembunyi seperti itu akan menimbulkan ancaman besar terhadap keamanan pasokan listrik. Untuk mendeteksi bahaya tersembunyi secara tepat waktu dan menghindari kecelakaan, perlu diterapkan pemantauan suhu real-time online dan alarm cerdas untuk setiap titik sambungan peralatan listrik.

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.

Karakteristik dari fluorescence fiber optic thermometer

FJINNO’s fluorescence fiber optic thermometer has the characteristics of accurate temperature measurement, resolusi tinggi, dan ketahanan terhadap interferensi elektromagnetik. The fluorescence fiber optic thermometer can be reliably applied in environments with strong electromagnetic interference, terutama di lingkungan pengukuran suhu yang keras. 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.